HARQUAHALA MAR 3, 2013 COTTON PLANTING DATE ADVISORY +-------------------------------------------------------------------------+ | v | *********** | **** 215 ** | *********** | | ^ normal | | PLANTING WINDOWS | | | Short Season ---------------| | | | Medium Season ----| | | | Full Season | | +---------+---------+---------+---------+---------+---------+---------+---+ 0 200 400 600 800 1000 1200 1400 HEAT UNITS (HU) ACCUMULATED FROM JAN 1 - MAR 2 v = Heat Units accumulated from JAN 1 - FEB 23 HEAT UNITS -------------------------------- HUs are running about 8 days behind normal. HISTORICAL STATISTICS -------------------------------- Last Week : FEB 24 - MAR 2 This Week : MAR 3 - MAR 9 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 70 39 30 35 ---- Normal 73 40 30 44 Recorded 71 33 16 34 0.00 2012 72 37 36 42 SOIL TEMPERATURES -------------------------------- Last Week's 8am Soil Temp: Max = 51.6 MAR 2 ; Min = 44.6 FEB 26 WEATHER UPDATE -------------------------------- -Expect sunny, warm & dry conditions through Thursday. Another cold storm system is projected to develop late this week, resulting in below normal temperatures & a chance for precipitation Friday/Saturday. Temperatures are expected to return to normal levels by early next week. -Growers are encouraged to measure soil temperatures prior to planting. Soils are quite cool due to the cold winter weather. Soil temperatures at 8am at seed- ing depth should approach 60F prior to planting. A good weather forecast for planting would call for sunny skies with highs above 80F & lows above 47F. Soil temperatures generally remain in the acceptable range for germination under these conditions. HARQUAHALA MAR 10, 2013 COTTON PLANTING DATE ADVISORY +-------------------------------------------------------------------------+ | v | ************* | **** 260 **** | ************* | | ^ normal | | PLANTING WINDOWS | | | Short Season ---------------| | | | Medium Season ----| | | | Full Season | | +---------+---------+---------+---------+---------+---------+---------+---+ 0 200 400 600 800 1000 1200 1400 HEAT UNITS (HU) ACCUMULATED FROM JAN 1 - MAR 9 v = Heat Units accumulated from JAN 1 - MAR 2 HEAT UNITS -------------------------------- HUs are running about 6 days behind normal. HISTORICAL STATISTICS -------------------------------- Last Week : MAR 3 - MAR 9 This Week : MAR 10 - MAR 16 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 73 40 30 44 ---- Normal 78 42 30 63 Recorded 73 42 35 45 0.19 2012 79 43 27 64 SOIL TEMPERATURES -------------------------------- Last Week's 8am Soil Temp: Max = 58.8 MAR 8 ; Min = 51.1 MAR 9 WEATHER UPDATE -------------------------------- -High pressure will develop over AZ this week, producing sunny & dry conditions with above normal temperatures. Temperatures should peak late in the week with highs approaching 90F in central AZ & the low 90s along the River. Some cooling is expected next weekend as a low pressure system moves across the Great Basin. The current 8-14 day forecast calls for dry weather & a return to normal temper- atures by the middle of next week. Both the 6-10 day & 8-14 day forecasts may prove useful when planning planting operations. The internet addresses are: 6-10 day forecasts: http://www.cpc.ncep.noaa.gov/products/predictions/610day/ 8-14 day forecasts: http://www.cpc.ncep.noaa.gov/products/predictions/814day/ -A good planting forecast: sunny skies with highs above 80F & lows above 48F. HARQUAHALA MAR 17, 2013 COTTON PLANTING DATE ADVISORY +-------------------------------------------------------------------------+ | v | ***************** | ****** 342 ****** | ***************** | | ^ normal | | PLANTING WINDOWS | | | Short Season ---------------| | | | Medium Season ----| | | | Full Season | | +---------+---------+---------+---------+---------+---------+---------+---+ 0 200 400 600 800 1000 1200 1400 HEAT UNITS (HU) ACCUMULATED FROM JAN 1 - MAR 16 v = Heat Units accumulated from JAN 1 - MAR 9 HEAT UNITS -------------------------------- HUs are running about 2 days behind normal. HISTORICAL STATISTICS -------------------------------- Last Week : MAR 10 - MAR 16 This Week : MAR 17 - MAR 23 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 78 42 30 63 ---- Normal 80 44 30 68 Recorded 85 43 34 81 0.00 2012 84 46 31 84 SOIL TEMPERATURES -------------------------------- Last Week's 8am Soil Temp: Max = 62.2 MAR 16 ; Min = 49.1 MAR 10 WEATHER UPDATE -------------------------------- --Mostly sunny & dry with mild temperatures this week. Temperatures will not be as warm as last week, but will remain above normal. A series of storms will pass through the Great Basin this week. These systems will produce periods of windy weather & some slight cooling after mid-week. The forecast for next week is less certain with one forecast model calling for more cooling while a second suggests much warmer weather. Growers should monitor forecasts if planting late this week. --A good planting forecast: sunny skies with highs above 80F & lows above 48F. --Medium term (6-10 & 8-14 day) forecasts can be obtained from the internet at: 6-10 day forecasts: http://www.cpc.ncep.noaa.gov/products/predictions/610day/ 8-14 day forecasts: http://www.cpc.ncep.noaa.gov/products/predictions/814day/ HARQUAHALA MAR 24, 2013 COTTON PLANTING DATE ADVISORY +-------------------------------------------------------------------------+ | v | ********************** | ********* 434 ******** | ********************** | | ^ normal | | PLANTING WINDOWS | | | Short Season ---------------| | | | Medium Season ----| | | | Full Season | | +---------+---------+---------+---------+---------+---------+---------+---+ 0 200 400 600 800 1000 1200 1400 HEAT UNITS (HU) ACCUMULATED FROM JAN 1 - MAR 23 v = Heat Units accumulated from JAN 1 - MAR 16 HEAT UNITS -------------------------------- HUs are running about normal. HISTORICAL STATISTICS -------------------------------- Last Week : MAR 17 - MAR 23 This Week : MAR 24 - MAR 30 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 80 44 30 68 ---- Normal 79 45 29 68 Recorded 84 50 28 93 0.00 2012 72 43 29 38 SOIL TEMPERATURES -------------------------------- Last Week's 8am Soil Temp: Max = 65.8 MAR 21 ; Min = 60.8 MAR 23 WEATHER UPDATE -------------------------------- --High pressure will develop over AZ this week resulting in sunny, warm & dry conditions through Saturday. Temperatures should average about 5 degrees above normal. Medium term forecasts indicate a storm system will develop off the coast of CA late this week & move inland early next week. This system is expected to produce windy & cooler weather with a chance for precipitation. Growers should monitor the development of this storm if planning to plant late in the week. --Planting windows are open in central & western production areas. Full season varieties should be planted before the annual accumulation of heat units exceeds 700 (see graph above). --Soil temperatures are considered acceptable for germination when minimum (8am) soil temperatures at planting depth remain at 60F or higher. HARQUAHALA MAR 31, 2013 COTTON PLANTING DATE ADVISORY +-------------------------------------------------------------------------+ | v | ************************** | *********** 527 ********** | ************************** | | ^ normal | | PLANTING WINDOWS | | | Short Season ---------------| | | | Medium Season ----| | | | Full Season | | +---------+---------+---------+---------+---------+---------+---------+---+ 0 200 400 600 800 1000 1200 1400 HEAT UNITS (HU) ACCUMULATED FROM JAN 1 - MAR 30 v = Heat Units accumulated from JAN 1 - MAR 23 HEAT UNITS -------------------------------- HUs are running about 3 days ahead of normal. HISTORICAL STATISTICS -------------------------------- Last Week : MAR 24 - MAR 30 This Week : MAR 31 - APR 6 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 79 45 29 68 ---- Normal 79 45 30 68 Recorded 85 48 23 93 0.00 2012 88 50 31 99 SOIL TEMPERATURES -------------------------------- Last Week's 8am Soil Temp: Max = 67.8 MAR 30 ; Min = 58.3 MAR 24 WEATHER UPDATE -------------------------------- --A storm system located off the CA coast will move across the Great Basin on Monday, resulting in windy & slightly cooler conditions. No precipitation is expected with this storm system. The coolest day of the week will be Tuesday when temperatures should average near normal. High pressure will return on Wednesday, resulting in clear skies & very warm conditions through the weekend. --The planting windows are open for all production areas except Graham & Cochise Counties. Full season varieties should be planted before the annual accumulation of heat units exceeds 700 (see graph above). --Soil temperatures are considered acceptable for germination when minimum (8am) temperatures at planting depth remain at 60F or higher. Soils typically reach this acceptable thermal range when minimum air temperatures remain 48F or higher. HARQUAHALA APR 7, 2013 COTTON PLANTING DATE ADVISORY +-------------------------------------------------------------------------+ | v | ******************************* | ************** 626 ************ | ******************************* | | ^ normal | | PLANTING WINDOWS | | | Short Season ---------------| | | | Medium Season ----| | | | Full Season | | +---------+---------+---------+---------+---------+---------+---------+---+ 0 200 400 600 800 1000 1200 1400 HEAT UNITS (HU) ACCUMULATED FROM JAN 1 - APR 6 v = Heat Units accumulated from JAN 1 - MAR 30 HEAT UNITS -------------------------------- HUs are running about 6 days ahead of normal. HISTORICAL STATISTICS -------------------------------- Last Week : MAR 31 - APR 6 This Week : APR 7 - APR 13 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 79 45 30 68 ---- Normal 82 46 30 76 Recorded 87 50 31 100 0.00 2012 75 48 28 68 SOIL TEMPERATURES -------------------------------- Last Week's 8am Soil Temp: Max = 68.4 APR 5 ; Min = 64.2 APR 2 WEATHER UPDATE -------------------------------- --A strong storm will move across the Great Basin Monday & Tuesday, resulting in very windy conditions & much cooler temperatures. This is a relative dry storm, but light & scattered precipitation is possible Monday & Tuesday, especially in & adjacent to higher elevation areas (mountains). Temperatures will cool to below normal levels by Tuesday, then rebound to above normal levels by the weekend. --Soil temperatures are considered acceptable for germination when minimum (8am) temperatures at planting depth remain at 60F or higher. Soils typically reach this acceptable thermal range when minimum air temperatures remain 48F or higher. The cool temperatures expected early this week may push soil temperatures below this acceptable level for a few days. Growers in central & southeast AZ may want to delay planting until later in the week. A three-day delay in planting at this time of year delays peak bloom, cut-out and maturity by about one day. --Full season varieties should be planted before the annual accumulation of heat units (HU) exceeds 700. The 700 HU level will be reached in western AZ this week. HARQUAHALA APR 14, 2013 COTTON PLANTING DATE ADVISORY +-------------------------------------------------------------------------+ | v | ************************************ | **************** 713 *************** | ************************************ | | ^ normal | | PLANTING WINDOWS | | | Short Season ---------------| | | | Medium Season ----| | | | Full Season | | +---------+---------+---------+---------+---------+---------+---------+---+ 0 200 400 600 800 1000 1200 1400 HEAT UNITS (HU) ACCUMULATED FROM JAN 1 - APR 13 v = Heat Units accumulated from JAN 1 - APR 6 HEAT UNITS -------------------------------- HUs are running about 6 days ahead of normal. HISTORICAL STATISTICS -------------------------------- Last Week : APR 7 - APR 13 This Week : APR 14 - APR 20 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 82 46 30 76 ---- Normal 84 47 28 86 Recorded 84 50 28 88 0.00 2012 81 45 30 74 SOIL TEMPERATURES -------------------------------- Last Week's 8am Soil Temp: Max = 69.4 APR 8 ; Min = 63.7 APR 11 WEATHER UPDATE -------------------------------- --A strong storm system will pass through the West early in week, resulting in windy & cooler conditions through Thursday. This is expected to be a dry storm with little chance for precipitation. Below normal temperatures are expected by mid-week with the passage of this system. High pressure will redevelop over AZ late in the week & bring a return to above normal temperatures by the weekend. --Plant population should range from 25,000-50,000 plants/a. To assess, count the number of plants in 1/1000a & multiply by 1000. The row length equal to to 1/1000a: 40"row = 13'1", 38"row = 13'9", 36"row = 14'6", 30"row = 17'5". --Full season varieties should be planted before the annual accumulation of heat units (HU) exceeds 700. Most central AZ production areas will reach 700 HUs this week. Short & medium maturity varieties are recommended after 700 HUs. HARQUAHALA APR 28, 2013 COTTON PLANTING DATE ADVISORY +-------------------------------------------------------------------------+ | v | ********************************************* | ******************** 901 ******************** | ********************************************* | | ^ normal | | PLANTING WINDOWS | | | Short Season ---------------| | | | Medium Season ----| | | | Full Season | | +---------+---------+---------+---------+---------+---------+---------+---+ 0 200 400 600 800 1000 1200 1400 HEAT UNITS (HU) ACCUMULATED FROM JAN 1 - APR 27 v = Heat Units accumulated from JAN 1 - APR 20 HEAT UNITS -------------------------------- HUs are running about 5 days ahead of normal. HISTORICAL STATISTICS -------------------------------- Last Week : APR 21 - APR 27 This Week : APR 28 - MAY 4 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 86 49 31 94 ---- Normal 88 51 30 104 Recorded 91 50 29 107 0.00 2012 84 52 31 94 SOIL TEMPERATURES -------------------------------- Last Week's 8am Soil Temp: Max = 70.2 APR 27 ; Min = 66.2 APR 21 WEATHER UPDATE -------------------------------- --Expect sunny & dry conditions through midweek with hot days & mild nights. A storm system will move through the Great Basin Thursday, producing cooler temp- eratures & windy conditions. The cooling trend will be limited with temperatures expected to remain slightly above normal. No precipitation is expected with this system. The longer term forecast for May shows a moderate bias for above normal temperatures & no bias relative to precipitation. --The transition from vegetative growth to early reproductive development occurs with the formation of the first fruiting branches at nodes 5-7. This transition, known as pinhead square (PHS), usually occurs at ~700 heat units after planting. HARQUAHALA MAY 5, 2013 COTTON PLANTING DATE ADVISORY +-------------------------------------------------------------------------+ | v | *************************************************** | *********************** 1027 ********************** | *************************************************** | | ^ normal | | PLANTING WINDOWS | | | Short Season ---------------| | | | Medium Season ----| | | | Full Season | | +---------+---------+---------+---------+---------+---------+---------+---+ 0 200 400 600 800 1000 1200 1400 HEAT UNITS (HU) ACCUMULATED FROM JAN 1 - MAY 4 v = Heat Units accumulated from JAN 1 - APR 27 HEAT UNITS -------------------------------- HUs are running about 6 days ahead of normal. HISTORICAL STATISTICS -------------------------------- Last Week : APR 28 - MAY 4 This Week : MAY 5 - MAY 11 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 88 51 30 104 ---- Normal 91 53 33 115 Recorded 95 54 27 126 0.00 2012 91 48 20 103 SOIL TEMPERATURES -------------------------------- Last Week's 8am Soil Temp: Max = 74.8 APR 30 ; Min = 70.7 MAY 4 WEATHER UPDATE -------------------------------- --Cooler & less settled weather is expected this week due to the presence of a trough of low pressure. This trough, currently off the coast of CA, wll send a series of waves & impulses across the region, resulting in cooler temperatures & a slight chance for showers Tuesday & Wednesday, especially near the mountains. This system moves inland & across AZ late in the week & & may produce another period of showers in eastern production areas. High pressure & much warmer temp- eratures are expected by the weekend. --The transition from vegetative growth to early reproductive development occurs with the formation of the first fruiting branches at nodes 5-7. This transition, known as pinhead square (PHS), usually occurs at ~700 HUs after planting (HUAP). N fertilizer should be applied in split applications between PHS & early bloom which occurs at ~1200 HUAP (see publication AZ1200 on ACIS website for details). HARQUAHALA COTTON DEVELOPMENT ADVISORY MAY 12, 2013 PLANTING +/- normal DATE+-------------------------------------------------------------------------+ | | | | | | | | | | v | | | | | | | 3/15**************** 806 +7 days | v | | | | | | | | 4/1 ************ 579 +4 days | v | | | | | | | | 4/15******** 389 +1 day | | | | | | | | | 5/1 *** 156 0 days | | | | | | | | | | Pin Sus 1st 1" Pk. Bloom Cut-Out Terminate | | head Sq. Flowr Boll +---+---+ +---+---+ +---+---+ | | S M F S M F S M F | +-------+-------+-------+-------+-------+-------+-------+-------+-------+-+ 0 400 800 1200 1600 2000 2400 2800 3200 3600 HEAT UNITS ACCUMULATED FROM PLANTING to MAY 11 v = Heat Units on MAY 4; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 1132; Last year = 975 HUs since Jan 1 are running about 5 days ahead of normal. HU last week = 104 HISTORICAL STATISTICS -------------------------------- Last Week : MAY 5 - MAY 11 This Week : MAY 12 - MAY 18 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 91 53 33 115 ---- Normal 94 56 35 128 Recorded 86 54 40 104 0.00 2012 86 50 34 95 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 Water Use (last week): .48" .38" .38" .38" WEATHER UPDATE -------------------------------- --The low pressure system responsible for the recent stretch of windy weather is expected to move out of Mexico Tuesday, opening the door for a return to hot & dry weather. There is a slight chance for thunderstorms in eastern AZ on Tuesday as this system moves out. Expect sunny & dry conditions late this week with temp- eratures exceeding 100F in lower desert areas. A slight cooling trend is expected this weekend as another dry storm system passes north of AZ. --The transition from vegetative growth to early reproductive development occurs with the formation of the first fruiting branches at nodes 5-7. This transition, known as pinhead square (PHS), usually occurs at ~700 HUs after planting (HUAP). N fertilizer should be applied in split applications between PHS & early bloom which occurs at ~1200 HUAP (see publication AZ1200 on ACIS website for details). HARQUAHALA COTTON DEVELOPMENT ADVISORY MAY 19, 2013 PLANTING +/- normal DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | v | | | | | | | 3/15******************* 948 +7 days | v | | | | | | | | 4/1 ************** 721 +4 days | v | | | | | | | | 4/15*********** 531 +1 day | v | | | | | | | | 5/1 ****** 298 +1 day | | | | | | | | | 5/15* 59 0 days | | | | | | | | | | Pin Sus 1st 1" Pk. Bloom Cut-Out Terminate | | head Sq. Flowr Boll +---+---+ +---+---+ +---+---+ | | S M F S M F S M F | +-------+-------+-------+-------+-------+-------+-------+-------+-------+-+ 0 400 800 1200 1600 2000 2400 2800 3200 3600 HEAT UNITS ACCUMULATED FROM PLANTING to MAY 18 v = Heat Units on MAY 11; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 1274; Last year = 1070 HUs since Jan 1 are running about 6 days ahead of normal. HU last week = 141 HISTORICAL STATISTICS -------------------------------- Last Week : MAY 12 - MAY 18 This Week : MAY 19 - MAY 25 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 94 56 35 128 ---- Normal 93 57 38 127 Recorded 96 59 41 141 0.00 2012 82 50 35 82 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): .77" .46" .46" .46" .46" WEATHER UPDATE -------------------------------- --The mild weekend weather will end early in the week as high pressure settles over AZ. Much warmer temperatures are expected by mid-week. Another storm system is expected to pass north of AZ late in the week, producing breezy conditions & slightly cooler temperatures. No precipitation is expected from this system. --Revised long range forecasts were issued by the CPC last week. The forecast for June shows a weak (SW AZ) to moderate (rest of AZ) bias for above normal June temperatures. The long range forecast for the monsoon (Jul-Sep) is similar. There is no bias in the precipitation forecasts for June & the monsoon season, suggesting near normal precipitation in the coming months. Note that long range forecast models rarely show a precipitation bias during the monsoon. -N fertilizer should be applied in split applications between pinhead square & early bloom (700-1200 HU after planting). See pub. AZ1200 on ACIS website. HARQUAHALA COTTON DEVELOPMENT ADVISORY MAY 26, 2013 PLANTING +/- normal DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | |v | | | | | | 3/15********************** 1079 +8 days | v | | | | | | | 4/1 ***************** 852 +4 days | v | | | | | | | | 4/15************* 662 +2 days | v | | | | | | | | 5/1 ********* 429 +1 day | | | | | | | | | 5/15**** 190 0 days | | | | | | | | | | Pin Sus 1st 1" Pk. Bloom Cut-Out Terminate | | head Sq. Flowr Boll +---+---+ +---+---+ +---+---+ | | S M F S M F S M F | +-------+-------+-------+-------+-------+-------+-------+-------+-------+-+ 0 400 800 1200 1600 2000 2400 2800 3200 3600 HEAT UNITS ACCUMULATED FROM PLANTING to MAY 25 v = Heat Units on MAY 18; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 1405; Last year = 1152 HUs since Jan 1 are running about 6 days ahead of normal. HU last week = 130 HISTORICAL STATISTICS -------------------------------- Last Week : MAY 19 - MAY 25 This Week : MAY 26 - JUN 1 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 93 57 38 127 ---- Normal 97 58 38 138 Recorded 95 56 34 130 0.00 2012 91 54 35 119 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 1.01" .66" .48" .48" .48" WEATHER UPDATE -------------------------------- --Breezy & cooler weather is expected early in the week as a trough of low pres- sure moves across the Great Basin. High pressure will develop with the passage of this system & is expected to produce the hottest temperatures of the season. No precipitation is expected this week. --Growers should closely monitor soil moisture & avoid water stress. Evaporative demand is running above normal due to the windy & dry spring weather. Water stress reduces plant stature & can produce square abortion. -N fertilizer should be applied in split applications between pinhead square & early bloom (700-1200 HU after planting). See pub. AZ1200 on ACIS website. HARQUAHALA COTTON DEVELOPMENT ADVISORY JUN 2, 2013 PLANTING +/- normal DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | v | | | | | | 3/15************************ 1223 +7 days | | v| | | | | | | 4/1 ******************** 996 +4 days | v| | | | | | | | 4/15**************** 806 +2 days | v | | | | | | | | 5/1 *********** 573 +1 day | v | | | | | | | | 5/15******* 334 +1 day | | | | | | | | | | Pin Sus 1st 1" Pk. Bloom Cut-Out Terminate | | head Sq. Flowr Boll +---+---+ +---+---+ +---+---+ | | S M F S M F S M F | +-------+-------+-------+-------+-------+-------+-------+-------+-------+-+ 0 400 800 1200 1600 2000 2400 2800 3200 3600 HEAT UNITS ACCUMULATED FROM PLANTING to JUN 1 v = Heat Units on MAY 25; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 1549; Last year = 1271 HUs since Jan 1 are running about 6 days ahead of normal. HU last week = 145 HISTORICAL STATISTICS -------------------------------- Last Week : MAY 26 - JUN 1 This Week : JUN 2 - JUN 8 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 97 58 38 138 ---- Normal 98 59 38 143 Recorded 96 60 34 145 0.00 2012 90 50 31 107 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 1.12" .8" .53" .44" .44" WEATHER UPDATE -------------------------------- --Sunny, hot & dry conditions will continue across AZ this week. Expect a few degrees of cooling early in the week followed by a return to very hot conditions late in the week. No precipitation is expected this week. --Last week produced the hottest temperatures of the growing season & more heat is expected this week. June is an important month for crop development & fruit set. Water stress at this time of year can reduce plant stature & lead to square abortion. Growers are encouraged to monitor soil moisture closely & avoid water stress through timely irrigations. HARQUAHALA COTTON DEVELOPMENT ADVISORY JUN 9, 2013 PLANTING +/- normal DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | v | | | | | 3/15**************************** 1385 +8 days | | | v | | | | | | 4/1 *********************** 1158 +5 days | | v | | | | | | | 4/15******************* 968 +3 days | v | | | | | | | | 5/1 *************** 735 +2 days | v | | | | | | | | 5/15********** 496 +1 day | | | | | | | | | | Pin Sus 1st 1" Pk. Bloom Cut-Out Terminate | | head Sq. Flowr Boll +---+---+ +---+---+ +---+---+ | | S M F S M F S M F | +-------+-------+-------+-------+-------+-------+-------+-------+-------+-+ 0 400 800 1200 1600 2000 2400 2800 3200 3600 HEAT UNITS ACCUMULATED FROM PLANTING to JUN 8 v = Heat Units on JUN 1; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 1711; Last year = 1378 HUs since Jan 1 are running about 6 days ahead of normal. HU last week = 162 HISTORICAL STATISTICS -------------------------------- Last Week : JUN 2 - JUN 8 This Week : JUN 9 - JUN 15 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 98 59 38 143 ---- Normal 99 60 39 146 Recorded 104 63 43 162 0.00 2012 95 55 34 128 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 1.51" 1.15" .85" .49" .49" WEATHER UPDATE -------------------------------- --Sunny, hot & dry conditions will continue across AZ this week. Daytime Temp- eratures will approach 110F in low elevation production areas. Nights will remain on the mild side due the very low humidity. --Long range forecasts for June & the monsoon (July-September) indicate a mod- erate bias for above normal temperatures & no bias relative to precipitation. --June is an important month for crop development & fruit set. The hot & dry forecast will ensure high rates of water use in the coming weeks. Water stress at this time of year can reduce plant stature & lead to square abortion. Monitor soil moisture closely & avoid water stress through timely irrigations. HARQUAHALA COTTON DEVELOPMENT ADVISORY JUN 16, 2013 PLANTING +/- normal DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | v | | | | | 3/15******************************* 1553 +8 days | | | v| | | | | | 4/1 *************************** 1326 +6 days | | |v | | | | | | 4/15*********************** 1136 +4 days | |v | | | | | | | 5/1 ****************** 903 +3 days | v | | | | | | | | 5/15************* 664 +2 days | | | | | | | | | | Pin Sus 1st 1" Pk. Bloom Cut-Out Terminate | | head Sq. Flowr Boll +---+---+ +---+---+ +---+---+ | | S M F S M F S M F | +-------+-------+-------+-------+-------+-------+-------+-------+-------+-+ 0 400 800 1200 1600 2000 2400 2800 3200 3600 HEAT UNITS ACCUMULATED FROM PLANTING to JUN 15 v = Heat Units on JUN 8; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 1879; Last year = 1506 HUs since Jan 1 are running about 7 days ahead of normal. HU last week = 167 HISTORICAL STATISTICS -------------------------------- Last Week : JUN 9 - JUN 15 This Week : JUN 16 - JUN 22 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 99 60 39 146 ---- Normal 103 64 41 164 Recorded 104 65 45 167 0.04 2012 100 61 40 155 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 1.7" 1.36" 1.07" .71" .47" HEAT STRESS LEVELS -------------------------------- Date 6/9 6/10 6/11 6/12 6/13 6/14 6/15 Stress ns ns ns ns ns ns ns Key : ns = no stress; L1 = Level 1 Stress; L2 = Level 2 Stress WEATHER UPDATE -------------------------------- --Sunny, hot & dry conditions will prevail through late in the week. Expect temp- eratures to average 3-5 degrees above normal. Longer term forecasts indicate some moisture will enter the region by the weekend. This is not expected to be a major humidity event & should impact only central & eastern production areas. Any pre- cipitation is expected to be light and mostly associated with higher elevation areas. The long range forecast for the monsoon season (July-September) indicates a moderate bias for above normal temperatures & no bias relative to precipitation. HARQUAHALA COTTON DEVELOPMENT ADVISORY JUN 23, 2013 PLANTING +/- normal DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | v | | | | 3/15********************************** 1713 +8 days | | | | v | | | | | 4/1 ****************************** 1486 +5 days | | | v| | | | | | 4/15************************** 1296 +3 days | | v | | | | | | 5/1 ********************* 1063 +2 days | v| | | | | | | | 5/15**************** 824 +2 days | | | | | | | | | | Pin Sus 1st 1" Pk. Bloom Cut-Out Terminate | | head Sq. Flowr Boll +---+---+ +---+---+ +---+---+ | | S M F S M F S M F | +-------+-------+-------+-------+-------+-------+-------+-------+-------+-+ 0 400 800 1200 1600 2000 2400 2800 3200 3600 HEAT UNITS ACCUMULATED FROM PLANTING to JUN 22 v = Heat Units on JUN 15; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 2039; Last year = 1661 HUs since Jan 1 are running about 6 days ahead of normal. HU last week = 161 HISTORICAL STATISTICS -------------------------------- Last Week : JUN 16 - JUN 22 This Week : JUN 23 - JUN 29 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 103 64 41 164 ---- Normal 105 66 42 171 Recorded 102 63 40 161 0.00 2012 106 66 41 171 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 1.97" 1.62" 1.32" .97" .6" HEAT STRESS LEVELS -------------------------------- Date 6/16 6/17 6/18 6/19 6/20 6/21 6/22 Stress ns ns ns ns ns ns ns Key : ns = no stress; L1 = Level 1 Stress; L2 = Level 2 Stress WEATHER UPDATE -------------------------------- --A very strong high pressure system is expected to develop over AZ by mid-week, resulting in clear skies, low humidity and very hot temperatures. Daytime temp- eratures in the low desert are expected to approach 115F by Friday & remain at these high levels through the weekend. Some moisture will begin to move into eastern AZ by the weekend, resulting in a chance for afternoon cloudiness & high elevation thunderstorms. There is also mention of moisture working its way up the Colorado River late in the week which if combined with the very high temperatures could generate heat stress. HARQUAHALA COTTON DEVELOPMENT ADVISORY JUN 30, 2013 PLANTING +/- normal DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | v | | | | 3/15************************************** 1886 +7 days | | | | v| | | | | 4/1 ********************************* 1659 +5 days | | | | v | | | | | 4/15***************************** 1469 +3 days | | | v | | | | | | 5/1 ************************* 1236 +2 days | | v | | | | | | | 5/15******************** 997 +2 days | | | | | | | | | | Pin Sus 1st 1" Pk. Bloom Cut-Out Terminate | | head Sq. Flowr Boll +---+---+ +---+---+ +---+---+ | | S M F S M F S M F | +-------+-------+-------+-------+-------+-------+-------+-------+-------+-+ 0 400 800 1200 1600 2000 2400 2800 3200 3600 HEAT UNITS ACCUMULATED FROM PLANTING to JUN 29 v = Heat Units on JUN 22; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 2212; Last year = 1832 HUs since Jan 1 are running about 6 days ahead of normal. HU last week = 174 HISTORICAL STATISTICS -------------------------------- Last Week : JUN 23 - JUN 29 This Week : JUN 30 - JUL 6 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 105 66 42 171 ---- Normal 107 70 47 183 Recorded 106 67 43 174 0.00 2012 109 68 41 180 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 2.36" 1.99" 1.68" 1.3" .91" HEAT STRESS LEVELS -------------------------------- Date 6/23 6/24 6/25 6/26 6/27 6/28 6/29 Stress ns ns ns ns ns ns L1 Key : ns = no stress; L1 = Level 1 Stress; L2 = Level 2 Stress WEATHER UPDATE -------------------------------- --The strong high pressure center that developed last week continues to impact the region, resulting in very high temperatures. Sufficient moisture has seeped into AZ to produce heat stress conditions in many low elevation production areas. This high is expected to weaken & shift to a location that will shut off the flow of moisture to central & western production areas late this week. Expect the very high temperatures to continue with perhaps some cooler nights later in the week. Showers & thunderstorms are possible through mid-week. Precipitation chances will lessen late in the week as humidity levels decrease. HARQUAHALA COTTON DEVELOPMENT ADVISORY JUL 7, 2013 PLANTING +/- normal DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | v | | | | 3/15****************************************** 2093 +8 days | | | | | v | | | | 4/1 ************************************* 1866 +6 days | | | | v | | | | | 4/15********************************** 1676 +4 days | | | |v | | | | | 5/1 ***************************** 1443 +3 days | | | v | | | | | | 5/15************************ 1204 +3 days | | | | | | | | | | Pin Sus 1st 1" Pk. Bloom Cut-Out Terminate | | head Sq. Flowr Boll +---+---+ +---+---+ +---+---+ | | S M F S M F S M F | +-------+-------+-------+-------+-------+-------+-------+-------+-------+-+ 0 400 800 1200 1600 2000 2400 2800 3200 3600 HEAT UNITS ACCUMULATED FROM PLANTING to JUL 6 v = Heat Units on JUN 29; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 2419; Last year = 2012 HUs since Jan 1 are running about 7 days ahead of normal. HU last week = 207 HISTORICAL STATISTICS -------------------------------- Last Week : JUN 30 - JUL 6 This Week : JUL 7 - JUL 13 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 107 70 47 183 ---- Normal 106 74 53 192 Recorded 111 79 55 207 0.00 2012 104 77 61 200 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 2.88" 2.54" 2.2" 1.78" 1.36" HEAT STRESS LEVELS -------------------------------- Date 6/30 7/1 7/2 7/3 7/4 7/5 7/6 Stress L1 L2 L1 L1 L1 L1 L1 Key : ns = no stress; L1 = Level 1 Stress; L2 = Level 2 Stress WEATHER UPDATE -------------------------------- A drier southwesterly flow will keep most of the convective activity limited to far eastern Arizona through today. A southeasterly flow will begin to import moisture back into the state on Tuesday. This will lead to a gradual increase in showers and thunderstorms which will last through Friday. On Saturday and Sunday, a high pressure ridge will build over the region. With increasing temperatures and higher humidity, growers are advised to closely monitor heat stress conditions. Current heat stress updates can be found at: http://ag.arizona.edu/azmet/cotton.htm#HEATSTRESS HARQUAHALA COTTON DEVELOPMENT ADVISORY JUL 14, 2013 PLANTING +/- normal DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | |v | | | 3/15********************************************** 2296 +8 days | | | | | v | | | | 4/1 ***************************************** 2069 +5 days | | | | | v | | | | 4/15************************************** 1879 +4 days | | | | v | | | | | 5/1 ********************************* 1646 +3 days | | | v | | | | | 5/15**************************** 1407 +3 days | | | | | | | | | | Pin Sus 1st 1" Pk. Bloom Cut-Out Terminate | | head Sq. Flowr Boll +---+---+ +---+---+ +---+---+ | | S M F S M F S M F | +-------+-------+-------+-------+-------+-------+-------+-------+-------+-+ 0 400 800 1200 1600 2000 2400 2800 3200 3600 HEAT UNITS ACCUMULATED FROM PLANTING to JUL 13 v = Heat Units on JUL 6; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 2622; Last year = 2212 HUs since Jan 1 are running about 7 days ahead of normal. HU last week = 202 HISTORICAL STATISTICS -------------------------------- Last Week : JUL 7 - JUL 13 This Week : JUL 14 - JUL 20 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 106 74 53 192 ---- Normal 107 76 55 198 Recorded 107 78 59 202 0.33 2012 102 72 48 186 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 2.69" 2.69" 2.4" 2.01" 1.61" HEAT STRESS LEVELS -------------------------------- Date 7/7 7/8 7/9 7/10 7/11 7/12 7/13 Stress L1 L2 L1 L1 ns L1 L1 Key : ns = no stress; L1 = Level 1 Stress; L2 = Level 2 Stress WEATHER UPDATE -------------------------------- --An inverted trough of low pressure will slowly move westward from the southern plains into AZ this week. This system will provide additional moisture & dynamics to support significant thunderstorm activity. Precipitation will begin in eastern AZ Monday evening, then progress westward across the state during the rest of the week. Heavy rainfall is possible with this system. Cooler temperatures will result with the arrival of this system & will continue into the weekend. The first 2 weeks of July generated some serious heat stress in the low desert. For more details see the AZMET website at: http://ag.arizona.edu/azmet/cotton.htm#HEATSTRESS. HARQUAHALA COTTON DEVELOPMENT ADVISORY JUL 21, 2013 PLANTING +/- normal DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | | v | | | 3/15************************************************** 2503 +8 days | | | | | v | | | 4/1 ********************************************** 2276 +6 days | | | | | v | | | | 4/15****************************************** 2086 +4 days | | | | | v | | | | 5/1 ************************************* 1853 +4 days | | | | v | | | | | 5/15******************************** 1614 +3 days | | | | | | | | | | Pin Sus 1st 1" Pk. Bloom Cut-Out Terminate | | head Sq. Flowr Boll +---+---+ +---+---+ +---+---+ | | S M F S M F S M F | +-------+-------+-------+-------+-------+-------+-------+-------+-------+-+ 0 400 800 1200 1600 2000 2400 2800 3200 3600 HEAT UNITS ACCUMULATED FROM PLANTING to JUL 20 v = Heat Units on JUL 13; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 2829; Last year = 2398 HUs since Jan 1 are running about 7 days ahead of normal. HU last week = 208 HISTORICAL STATISTICS -------------------------------- Last Week : JUL 14 - JUL 20 This Week : JUL 21 - JUL 27 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 107 76 55 198 ---- Normal 105 77 59 200 Recorded 106 80 62 208 0.11 2012 106 77 47 201 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 2.59" 2.59" 2.59" 2.26" 1.88" HEAT STRESS LEVELS -------------------------------- Date 7/14 7/15 7/16 7/17 7/18 7/19 7/20 Stress L1 L2 L1 L1 L1 L1 ns Key : ns = no stress; L1 = Level 1 Stress; L2 = Level 2 Stress WEATHER UPDATE -------------------------------- --The low pressure system responsible for last week's weather will exit western AZ Monday. High pressure will develop over the region for a few days, resulting in warmer & drier conditions through mid-week. Another easterly wave is forecast to enter southeast AZ by Wednesday. This system will increase the moisture supply & provide additional lifting required to support afternoon & evening thunderstorms. An uptick in precipitation will begin Wednesday in southeast AZ, then spread west- ward during the week. Temperatures should average near normal for the week. Heat stress monitors are now operating in Mohave Valley, Yuma, Paloma & Coolidge. See AZMET website at: http://ag.arizona.edu/azmet/cotton.htm#HEATSTRESS. HARQUAHALA COTTON DEVELOPMENT ADVISORY JUL 28, 2013 PLANTING +/- normal DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | | v | | | 3/15****************************************************** 2706 +8 days | | | | | | v | | | 4/1 ************************************************** 2479 +6 days | | | | | |v | | | 4/15********************************************** 2289 +4 days | | | | | v | | | | 5/1 ***************************************** 2056 +4 days | | | | |v | | | | 5/15************************************ 1817 +3 days | | | | | | | | | | Pin Sus 1st 1" Pk. Bloom Cut-Out Terminate | | head Sq. Flowr Boll +---+---+ +---+---+ +---+---+ | | S M F S M F S M F | +-------+-------+-------+-------+-------+-------+-------+-------+-------+-+ 0 400 800 1200 1600 2000 2400 2800 3200 3600 HEAT UNITS ACCUMULATED FROM PLANTING to JUL 27 v = Heat Units on JUL 20; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 3032; Last year = 2599 HUs since Jan 1 are running about 7 days ahead of normal. HU last week = 203 HISTORICAL STATISTICS -------------------------------- Last Week : JUL 21 - JUL 27 This Week : JUL 28 - AUG 3 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 105 77 59 200 ---- Normal 104 76 58 197 Recorded 101 79 64 203 0.18 2012 106 77 58 203 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 2.28" 2.28" 2.28" 2.28" 1.94" HEAT STRESS LEVELS -------------------------------- Date 7/21 7/22 7/23 7/24 7/25 7/26 7/27 Stress ns ns L1 L1 L1 L1 L1 Key : ns = no stress; L1 = Level 1 Stress; L2 = Level 2 Stress WEATHER UPDATE -------------------------------- --The high pressure system that drives monsoon flow has retreated into Mexico, resulting in a return to dry southwesterly flow across AZ. This drier flow regime will continue across eastern & central production areas through mid-week & across western production area most of the week. Expect sunny skies with hot days, mild nights & much lower humidity. Moisture will reenter eastern & central AZ by mid- week, resulting in cooler temperatures & increased chances for thunderstorms. --The lower humidity should lessen problems with heat stress. Heat stress monitors have been installed in Mohave Valley, Yuma, Paloma & Coolidge. See AZMET website at: http://ag.arizona.edu/azmet/cotton.htm#HEATSTRESS. HARQUAHALA COTTON DEVELOPMENT ADVISORY AUG 4, 2013 PLANTING +/- normal DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | | |v | | 3/15********************************************************** 2908 +8 days | | | | | | v | | | 4/1 ****************************************************** 2681 +6 days | | | | | | v | | | 4/15************************************************** 2491 +5 days | | | | | v | | | 5/1 ********************************************* 2258 +4 days | | | | | v | | | | 5/15**************************************** 2019 +4 days | | | | | | | | | | Pin Sus 1st 1" Pk. Bloom Cut-Out Terminate | | head Sq. Flowr Boll +---+---+ +---+---+ +---+---+ | | S M F S M F S M F | +-------+-------+-------+-------+-------+-------+-------+-------+-------+-+ 0 400 800 1200 1600 2000 2400 2800 3200 3600 HEAT UNITS ACCUMULATED FROM PLANTING to AUG 3 v = Heat Units on JUL 27; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 3234; Last year = 2802 HUs since Jan 1 are running about 7 days ahead of normal. HU last week = 202 HISTORICAL STATISTICS -------------------------------- Last Week : JUL 28 - AUG 3 This Week : AUG 4 - AUG 10 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 104 76 58 197 ---- Normal 104 75 56 195 Recorded 106 78 49 202 0.00 2012 108 79 58 205 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 2.68" 2.68" 2.68" 2.68" 2.62" HEAT STRESS LEVELS -------------------------------- Date 7/28 7/29 7/30 7/31 8/1 8/2 8/3 Stress L1 ns ns L1 L1 ns ns Key : ns = no stress; L1 = Level 1 Stress; L2 = Level 2 Stress WEATHER UPDATE -------------------------------- --Typical monsoon conditions will prevail through mid-week with warm temperatures & moderate humidity. An uptick in rainfall is possible Tuesday with the movement northward from Mexico of an area of vorticity which leads to more vertical motion & thus aids storm development. Dry southwesterly flow should develop by Wednesday as a trough of low pressure moves across the Great Basin. This system will force the monsoon moisture eastward into New Mexico. The drier conditions are expected to remain in place through the weekend. Temperatures should run slightly below normal early in the week, then increase to above normal levels with the arrival of the drier conditions late in the week. HARQUAHALA COTTON DEVELOPMENT ADVISORY AUG 11, 2013 PLANTING +/- normal DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | | | v | | 3/15************************************************************** 3092 +8 days | | | | | | |v | | 4/1 ********************************************************* 2865 +6 days | | | | | | v | | | 4/15****************************************************** 2675 +4 days | | | | | | v | | | 5/1 ************************************************* 2442 +4 days | | | | | v| | | | 5/15******************************************** 2203 +3 days | | | | | | | | | | Pin Sus 1st 1" Pk. Bloom Cut-Out Terminate | | head Sq. Flowr Boll +---+---+ +---+---+ +---+---+ | | S M F S M F S M F | +-------+-------+-------+-------+-------+-------+-------+-------+-------+-+ 0 400 800 1200 1600 2000 2400 2800 3200 3600 HEAT UNITS ACCUMULATED FROM PLANTING to AUG 10 v = Heat Units on AUG 3; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 3418; Last year = 3007 HUs since Jan 1 are running about 7 days ahead of normal. HU last week = 183 HISTORICAL STATISTICS -------------------------------- Last Week : AUG 4 - AUG 10 This Week : AUG 11 - AUG 17 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 104 75 56 195 ---- Normal 105 75 59 196 Recorded 102 71 45 183 0.00 2012 104 79 55 206 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 2.41" 2.46" 2.46" 2.46" 2.46" HEAT STRESS LEVELS -------------------------------- Date 8/4 8/5 8/6 8/7 8/8 8/9 8/10 Stress ns ns ns ns ns ns ns Key : ns = no stress; L1 = Level 1 Stress; L2 = Level 2 Stress WEATHER UPDATE -------------------------------- --Dry, southwest flow will continue for much of the week in western & central production areas. Expect sunny & hot days with mild nights & low humidity. High pressure will develop over central AZ late this week, resulting in hot temper- atures & some increase in humidity in central/eastern production areas. Precip- itation is unlikely in western & central areas. Some precipitation in the form of afternoon thunderstorms may develop in eastern production areas late in week. --The long range forecast for August: weak (east AZ) to moderate (west AZ) bias for above normal temperatures & weak bias for above normal precipitation (east only). Same forecast for fall (Aug-Oct) but stronger bias for warm temperatures. HARQUAHALA COTTON DEVELOPMENT ADVISORY AUG 18, 2013 PLANTING +/- normal DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | | | v | | 3/15****************************************************************** 3278 +8 days | | | | | | | v | | 4/1 ************************************************************* 3051 +5 days | | | | | | v | | 4/15********************************************************* 2861 +4 days | | | | | | v | | | 5/1 ***************************************************** 2628 +3 days | | | | | | v | | | 5/15************************************************ 2389 +3 days | | | | | | | | | | Pin Sus 1st 1" Pk. Bloom Cut-Out Terminate | | head Sq. Flowr Boll +---+---+ +---+---+ +---+---+ | | S M F S M F S M F | +-------+-------+-------+-------+-------+-------+-------+-------+-------+-+ 0 400 800 1200 1600 2000 2400 2800 3200 3600 HEAT UNITS ACCUMULATED FROM PLANTING to AUG 17 v = Heat Units on AUG 10; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 3604; Last year = 3213 HUs since Jan 1 are running about 7 days ahead of normal. HU last week = 187 HISTORICAL STATISTICS -------------------------------- Last Week : AUG 11 - AUG 17 This Week : AUG 18 - AUG 24 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 105 75 59 196 ---- Normal 104 75 57 194 Recorded 109 71 43 187 0.00 2012 108 79 55 204 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 2.13" 2.44" 2.44" 2.44" 2.44" HEAT STRESS LEVELS -------------------------------- Date 8/11 8/12 8/13 8/14 8/15 8/16 8/17 Stress ns ns ns ns L1 L1 L1 Key : ns = no stress; L1 = Level 1 Stress; L2 = Level 2 Stress WEATHER UPDATE -------------------------------- --High pressure will remain centered over AZ through mid-week, resulting in hot temperatures with moderate humidity & scattered afternoon thunderstorms. The high will weaken & move eastward late in the week, ending the current run of hot weather. Much cooler & humid conditions are expected by the weekend as a trough of low pressure moves into the region. Forecasters also expect both an easterly wave (from New Mexico) & a tropical system (from Baja) to impact the state late in the week, greatly increasing the chances for precipitation statewide. --September forecasts: slight (central AZ) to moderate (eastern AZ) above normal bias for precipitation; moderate above normal bias for temperature statewide. HARQUAHALA COTTON DEVELOPMENT ADVISORY AUG 25, 2013 PLANTING +/- normal DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | | | |v 3482 | 3/15********************************************************************** +8 days | | | | | | | v | | 4/1 ***************************************************************** 3255 +6 days | | | | | | | v | | 4/15************************************************************* 3065 +4 days | | | | | | v | | 5/1 ********************************************************* 2832 +4 days | | | | | | v | | | 5/15**************************************************** 2593 +3 days | | | | | | | | | | Pin Sus 1st 1" Pk. Bloom Cut-Out Terminate | | head Sq. Flowr Boll +---+---+ +---+---+ +---+---+ | | S M F S M F S M F | +-------+-------+-------+-------+-------+-------+-------+-------+-------+-+ 0 400 800 1200 1600 2000 2400 2800 3200 3600 HEAT UNITS ACCUMULATED FROM PLANTING to AUG 24 v = Heat Units on AUG 17; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 3808; Last year = 3417 HUs since Jan 1 are running about 7 days ahead of normal. HU last week = 203 HISTORICAL STATISTICS -------------------------------- Last Week : AUG 18 - AUG 24 This Week : AUG 25 - AUG 31 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Normal 104 75 57 194 ---- Normal 104 73 57 189 Recorded 105 79 57 203 0.45 2012 111 77 49 202 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 1.64" 1.91" 2.14" 2.15" 2.15" HEAT STRESS LEVELS -------------------------------- Date 8/18 8/19 8/20 8/21 8/22 8/23 8/24 Stress L1 L1 L1 L1 L1 L1 ns Key : ns = no stress; L1 = Level 1 Stress; L2 = Level 2 Stress WEATHER UPDATE -------------------------------- The remnants of tropical system Ivo will continue to impact AZ Monday with high humidity & a chance for heavy rainfall. A brief drying period is expected Tuesday & Wednesday that will lower humidity levels back to normal. Remnants of tropical storm Fernand are expected to move into AZ Thursday, resulting in another surge of humidity & a chance for widepread precipitation late this week. The timing & track of Fernand is not well established at this time. Temperatures should run below normal this week. This is the last scheduled advisory for 2013. Have a safe & profitable harvest !