HARQUAHALA MAR 18, 2001 COTTON PLANTING DATE ADVISORY +-------------------------------------------------------------------------+ | PINK BOLLWORM SUSCEPTIBILITY * | +---------+------------+-----------------------------------------+ | | HIGH | MEDIUM | LOW | | | v | ************* | **** 256 **** | ************* | | | | 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 * HIGH:>50%, MEDIUM:25-50%, LOW<25% Spring Emergence after Susceptible Square HISTORICAL STATISTICS -------------------------------- Last Week : MAR 10 - MAR 16 This Week : MAR 18 - MAR 23 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Recorded 73 42 66 44 0.00 2000 84 46 38 86 SOIL TEMPERATURES -------------------------------- Last Week's 8am Soil Temp: Max = 58.3 MAR 17 ; Min = 50.5 MAR 11 WEATHER UPDATE -------------------------------- A warm week at last! High pressure will dominate Arizona weather this week. Expect sunny & dry weather with above normal temperatures. Temperatures will begin the week near normal, then warm to as much as 5-7 degrees above normal for the latter half of the week. The spring of 2001 is coolest of any in the past 15 years. Heat unit accum- ulation is running well below normal and well below the previous record lows observed by AZMET (1998 in most locations; 1992 in Marana). Precipitation continues to run above normal at most AZ locations with near record levels reported along the Colorado River. The cool spring weather has chilled soils considerably. While this week's warm weather will warm surface soils to appropriate planting temperatures at many locations, deeper soil temperature remain suboptimal in many locations. Soil temperatures at 20" are running between 60 and 63 degrees at many locations in central and western Arizona. Cotton roots generally do not grow and develop properly when soil temperatures drop below the 60-65 degree range. Planting is generally not recommended when early morning soil temperatures (around 8 am) in the planting zone drop much below 60 degrees. Data collected by AZMET over the past 15 years indicate soils typically warm to acceptable levels for germ- ination when lows are 48F & above and highs exceed 80F. HARQUAHALA MAR 25, 2001 COTTON PLANTING DATE ADVISORY +-------------------------------------------------------------------------+ | PINK BOLLWORM SUSCEPTIBILITY * | +---------+------------+-----------------------------------------+ | | HIGH | MEDIUM | LOW | | | v | ***************** | ****** 345 ****** | ***************** | | | | 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 * HIGH:>50%, MEDIUM:25-50%, LOW<25% Spring Emergence after Susceptible Square HISTORICAL STATISTICS -------------------------------- Last Week : MAR 17 - MAR 23 This Week : MAR 25 - MAR 30 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Recorded 87 44 34 89 0.00 2000 73 43 25 48 SOIL TEMPERATURES -------------------------------- Last Week's 8am Soil Temp: Max = 64.6 MAR 22 ; Min = 55.9 MAR 18 WEATHER UPDATE -------------------------------- High pressure, which dominated Arizona weather last week, will weaken this week, bringing occasional clouds and slightly cooler temperatures. Dry weather should continue, but temperatures will average closer to normal. Last week's warm weather helped warm soils to acceptable levels for planting in some areas. Soil temperatures in the seed zone should remain at 60F or higher in the early morning hours (7-8 am) to ensure adequate germination. Minimum soil temperatures of 65F and above are considered optimal for planting. Soils typically warm to acceptable levels for germination when lows are 48F & above and highs exceed 80F. HARQUAHALA APR 8, 2001 COTTON PLANTING DATE ADVISORY +-------------------------------------------------------------------------+ | PINK BOLLWORM SUSCEPTIBILITY * | +---------+------------+-----------------------------------------+ | | HIGH | MEDIUM | LOW | | | v | ************************* | ********** 503 ********** | ************************* | | | | 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 * HIGH:>50%, MEDIUM:25-50%, LOW<25% Spring Emergence after Susceptible Square HISTORICAL STATISTICS -------------------------------- Last Week : MAR 31 - APR 6 This Week : APR 8 - APR 13 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Recorded 76 49 42 60 0.03 2000 90 46 32 98 SOIL TEMPERATURES -------------------------------- Last Week's 8am Soil Temp: Max = 68.4 APR 2 ; Min = 60.8 APR 7 WEATHER UPDATE -------------------------------- Another late winter storm will move across Arizona early in the week, bringing windy and cooler weather with a chance for rain. The best chance for rain is Tuesday. At present, this storm does not appear to be as wet as the previous storm, but cool weather is almost a certainty during and following storm pass- age. Current forecasts call for yet another storm to track north of AZ about Thursday. This second storm is not expected to generate precipitation and may have only minimal effects on AZ weather. Growers are encouraged to watch both storms carefully. Again, consideration should be given to delaying planting until this storm passes. A return to warm and dry weather is expected by the weekend. Soils typically warm to optimal levels for germination when highs exceed 80F and lows remain in the upper 40s or higher. HARQUAHALA APR 8, 2001 COTTON PLANTING DATE ADVISORY +-------------------------------------------------------------------------+ | PINK BOLLWORM SUSCEPTIBILITY * | +---------+------------+-----------------------------------------+ | | HIGH | MEDIUM | LOW | | | v | ************************* | ********** 503 ********** | ************************* | | | | 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 * HIGH:>50%, MEDIUM:25-50%, LOW<25% Spring Emergence after Susceptible Square HISTORICAL STATISTICS -------------------------------- Last Week : APR 1 - APR 7 This Week : APR 8 - APR 14 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Recorded 76 49 42 60 0.03 2000 90 46 32 98 SOIL TEMPERATURES -------------------------------- Last Week's 8am Soil Temp: Max = 68.4 APR 2 ; Min = 60.8 APR 7 WEATHER UPDATE -------------------------------- Another late winter storm will move across Arizona early in the week, bringing windy and cooler weather with a chance for rain. The best chance for rain is Tuesday. At present, this storm does not appear to be as wet as the previous storm, but cool weather is almost a certainty during and following storm pass- age. Current forecasts call for yet another storm to track north of AZ about Thursday. This second storm is not expected to generate precipitation and may have only minimal effects on AZ weather. Growers are encouraged to watch both storms carefully. Again, consideration should be given to delaying planting until this storm passes. A return to warm and dry weather is expected by the weekend. Soils typically warm to optimal levels for germination when highs exceed 80F and lows remain in the upper 40s or higher. HARQUAHALA APR 15, 2001 COTTON PLANTING DATE ADVISORY +-------------------------------------------------------------------------+ | PINK BOLLWORM SUSCEPTIBILITY * | +---------+------------+-----------------------------------------+ | | HIGH | MEDIUM | LOW | | | v | *************************** | ************ 546 ********** | *************************** | | | | 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 * HIGH:>50%, MEDIUM:25-50%, LOW<25% Spring Emergence after Susceptible Square HISTORICAL STATISTICS -------------------------------- Last Week : APR 8 - APR 14 This Week : APR 15 - APR 21 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Recorded 73 40 36 42 0.02 2000 88 52 30 103 SOIL TEMPERATURES -------------------------------- Last Week's 8am Soil Temp: Max = 62.2 APR 14 ; Min = 57 APR 11 WEATHER UPDATE -------------------------------- High pressure will dominate AZ weather through mid-week, bringing sunny & dry weather with above normal temperatures. A trough of low pressure will approach the area late in the week, but current forecasts indicate this system will simply cool temperatures back to normal and generate some wind. No rain is presently in the forecast. This week's forecast looks positive for planting. Soils typically warm to acceptable levels for germination when lows are 48F & above and highs exceed 80F. Temperatures should reach or exceed these levels at most locations during much of the week. HARQUAHALA APR 22, 2001 COTTON PLANTING DATE ADVISORY +-------------------------------------------------------------------------+ | PINK BOLLWORM SUSCEPTIBILITY * | +---------+------------+-----------------------------------------+ | | HIGH | MEDIUM | LOW | | | v | ******************************** | ************** 637 ************* | ******************************** | | | | PLANTING WINDOWS | | | Short Season ---------------| | | | Medium Season ----| | | | Full Season | | +---------+---------+---------+---------+---------+---------+---------+---+ 0 200 400 600 800 1000 1200 1400 HEAT UNITS (HU) ACCUMULATED FROM JAN 1 - APR 21 v = Heat Units accumulated from JAN 1 - APR 14 * HIGH:>50%, MEDIUM:25-50%, LOW<25% Spring Emergence after Susceptible Square HISTORICAL STATISTICS -------------------------------- Last Week : APR 15 - APR 21 This Week : APR 22 - APR 28 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Recorded 86 47 35 91 0.24 2000 84 50 33 91 SOIL TEMPERATURES -------------------------------- Last Week's 8am Soil Temp: Max = 72.7 APR 19 ; Min = 62.8 APR 15 WEATHER UPDATE -------------------------------- A rapid warmup is expected following the cold weekend storm. Mostly sunny and mild Monday, followed by rapid warming to above normal temperatures by Wednes- day. Sunny and very warm weather is expected late in the week. Some areas in the low desert will approach 100F this week; expect temperatures in or near the 90s in higher elevation areas. A large ridge of high pressure will keep rain- fall away from AZ for the week. HARQUAHALA APR 29, 2001 COTTON PLANTING DATE ADVISORY +-------------------------------------------------------------------------+ | PINK BOLLWORM SUSCEPTIBILITY * | +---------+------------+-----------------------------------------+ | | HIGH | MEDIUM | LOW | | | v | ************************************* | **************** 745 **************** | ************************************* | | | | PLANTING WINDOWS | | | Short Season ---------------| | | | Medium Season ----| | | | Full Season | | +---------+---------+---------+---------+---------+---------+---------+---+ 0 200 400 600 800 1000 1200 1400 HEAT UNITS (HU) ACCUMULATED FROM JAN 1 - APR 28 v = Heat Units accumulated from JAN 1 - APR 21 * HIGH:>50%, MEDIUM:25-50%, LOW<25% Spring Emergence after Susceptible Square HISTORICAL STATISTICS -------------------------------- Last Week : APR 22 - APR 28 This Week : APR 29 - MAY 5 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Recorded 91 50 42 108 0.00 2000 95 52 35 118 SOIL TEMPERATURES -------------------------------- Last Week's 8am Soil Temp: Max = 74.1 APR 27 ; Min = 57 APR 22 WEATHER UPDATE -------------------------------- Another winter-type storm is projected to drop into AZ by mid-week. Sunny, warm & dry weather is expected through Tuesday. Windy & much cooler weather is expected Wednesday through Friday as the storm system moves in & then slowly exits the state. Present forecasts suggest this will be a fairly dry storm, but growers should carefully monitor this storm if planning to plant this week. Temperatures for the week should be about 3 degrees below normal. HARQUAHALA MAY 6, 2001 COTTON PLANTING DATE ADVISORY +-------------------------------------------------------------------------+ | PINK BOLLWORM SUSCEPTIBILITY * | +---------+------------+-----------------------------------------+ | | HIGH | MEDIUM | LOW | | | v | ******************************************* | ******************** 852 ****************** | ******************************************* | | | | PLANTING WINDOWS | | | Short Season ---------------| | | | Medium Season ----| | | | Full Season | | +---------+---------+---------+---------+---------+---------+---------+---+ 0 200 400 600 800 1000 1200 1400 HEAT UNITS (HU) ACCUMULATED FROM JAN 1 - MAY 5 v = Heat Units accumulated from JAN 1 - APR 28 * HIGH:>50%, MEDIUM:25-50%, LOW<25% Spring Emergence after Susceptible Square HISTORICAL STATISTICS -------------------------------- Last Week : APR 29 - MAY 5 This Week : MAY 6 - MAY 12 HIGH LOW DEWPT HUs RAIN HIGH LOW DEWPT HUs Recorded 90 51 30 105 0.00 2000 97 54 29 127 SOIL TEMPERATURES -------------------------------- Last Week's 8am Soil Temp: Max = 73.6 MAY 1 ; Min = 68.2 MAY 4 WEATHER UPDATE -------------------------------- High pressure will dominate Arizona weather this week. Expect sunny and dry weather with hot days and mild nights. Daytime temperatures should run about 5 degrees above normal. Nights are expected to cool to near-normal levels. Slightly cooler weather may return by late in the week as a storm system passes north of Arizona. No precipitation is expected this week. HARQUAHALA COTTON DEVELOPMENT ADVISORY MAY 13, 2001 PLANTING DATE+-------------------------------------------------------------------------+ | | | | | | | | | | v | | | | | | | | 3/15*************** 759 | | v | | | | | | | | 4/1 *********** 543 | | v | | | | | | | | 4/15********* 438 | | | | | | | | | | 5/1 **** 201 | | | | | | | | | | | 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 12 v = Heat Units on MAY 5; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 998 HU last week = 147 HISTORICAL STATISTICS -------------------------------- Last Week : MAY 6 - MAY 12 HIGH LOW HUs DEWPT RAIN Recorded 102 59 147 39 0.00 PINK BOLLWORM EMERGENCE -------------------------------- Spring emergence of PBW should be about 22% complete at this time. ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): .48" .46" .46" .46" .46" WEATHER UPDATE -------------------------------- Weather more typical of the monsoon season is expected this week. Expect sunny and warm conditions in western AZ for most of the week. Weak surges of humid air will leak into central and eastern AZ throughout the week, leading to a slight chance for afternoon thunderstorms, especially adjacent to the mountains. The best chances for rain will be Monday and Thursday. Temperatures should average 3-5 degrees above normal for the week. HARQUAHALA COTTON DEVELOPMENT ADVISORY MAY 20, 2001 PLANTING DATE+-------------------------------------------------------------------------+ | | | | | | | | | | |v | | | | | | | 3/15****************** 909 | | v | | | | | | | | 4/1 ************** 693 | | v | | | | | | | | 4/15************ 588 | | v | | | | | | | | 5/1 ******* 351 | | | | | | | | | | 5/15** 88 | | | | | | | | | | | 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 19 v = Heat Units on MAY 12; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 1148 HU last week = 151 HISTORICAL STATISTICS -------------------------------- Last Week : MAY 13 - MAY 19 HIGH LOW HUs DEWPT RAIN Recorded 96 62 151 41 0.00 PINK BOLLWORM EMERGENCE -------------------------------- Spring emergence of PBW should be about 37% complete at this time. ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): .72" .45" .45" .45" .45" WEATHER UPDATE -------------------------------- High pressure will reside over AZ much of this week. Expect sunny, hot and dry weather through about Thursday. Some moisture may again leak into central and eastern AZ late in the week as the high pressure system move eastward. Eastern and central AZ may experience cooler temperatures and widely scattered thunderstorms late in the week. Statewide, temperatures should average about 3-5 degrees above normal this week. HARQUAHALA COTTON DEVELOPMENT ADVISORY MAY 27, 2001 PLANTING DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | v | | | | | | 3/15********************* 1071 | | v | | | | | | | 4/1 ***************** 855 | | v | | | | | | | | 4/15*************** 750 | | v | | | | | | | | 5/1 ********** 513 | |v | | | | | | | | 5/15***** 250 | | | | | | | | | | | 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 26 v = Heat Units on MAY 19; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 1310 HU last week = 162 HISTORICAL STATISTICS -------------------------------- Last Week : MAY 20 - MAY 26 HIGH LOW HUs DEWPT RAIN Recorded 104 63 162 45 0.00 PINK BOLLWORM EMERGENCE -------------------------------- Spring emergence of PBW should be about 56% complete at this time. ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 1.03" .67" .49" .49" .49" WEATHER UPDATE -------------------------------- Sunny and dry with increasing temperatures through Friday. Expect temperatures to increase from near normal levels Monday to 5-7 degrees above normal by Friday. A weak cooling trend is expected to lower temperatures back to normal over the weekend. No precipitation is expected in cotton production areas. HARQUAHALA COTTON DEVELOPMENT ADVISORY JUN 3, 2001 PLANTING DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | v | | | | | | 3/15************************* 1234 | | | v| | | | | | | 4/1 ******************** 1018 | | |v | | | | | | | 4/15****************** 913 | | v | | | | | | | | 5/1 ************** 676 | | v | | | | | | | | 5/15******** 413 | | | | | | | | | | | 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 2 v = Heat Units on MAY 26; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 1473; Last year = 1491 HU last week = 161 HISTORICAL STATISTICS -------------------------------- Last Week : MAY 27 - JUN 2 HIGH LOW HUs DEWPT RAIN Recorded 101 64 161 45 0.00 PINK BOLLWORM EMERGENCE -------------------------------- Spring emergence of PBW should be about 74% complete at this time. ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 1.3" .94" .76" .48" .48" WEATHER UPDATE -------------------------------- Another hot week! The brief "cooling trend" that developed Sunday will end on Tuesday when a high pressure ridge again establishes itself over the southwest. Expect breezy weather with normal temperatures on Monday. A rapid warming trend will develop by mid-week with high temperatures expected to approach or exceed 110F in central and western AZ. Little relief from the heat is expected until at least next weekend. The water requirement of the crop is increasing rapidly due to rapid canopy development and high evaporative demand. Growers are encouraged to monitor soil moisture carefully. High daytime temperatures in combination with water stress can lead to major shedding (squares and flowers) events which lower fruit retention and delay crop maturity (extend more of primary bloom into monsoon). HARQUAHALA COTTON DEVELOPMENT ADVISORY JUN 10, 2001 PLANTING DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | |v | | | | | 3/15**************************** 1386 | | | | v | | | | | | 4/1 *********************** 1170 | | | v | | | | | | 4/15********************* 1065 | | v | | | | | | | 5/1 ***************** 828 | | v | | | | | | | | 5/15*********** 565 | | | | | | | | | | | 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 9 v = Heat Units on JUN 2; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 1625; Last year = 1660 HU last week = 152 HISTORICAL STATISTICS -------------------------------- Last Week : JUN 3 - JUN 9 HIGH LOW HUs DEWPT RAIN Recorded 101 61 152 42 0.00 PINK BOLLWORM EMERGENCE -------------------------------- Spring emergence of PBW should be about 85% complete at this time. ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 1.61" 1.24" 1.05" .65" .5" WEATHER UPDATE -------------------------------- The jet stream will dip down over northern AZ early this week, bringing a brief cooling trend. Expect temperatures to drop back to normal levels through mid- week. The nearby presence of the jet stream is not expected to generate any precipitation in cotton production areas, however, some high clouds & increased afternoon wind speeds may be present early in the week. High pressure will redevelop over AZ late in the week and bring a return to hot weather. The water requirement of the crop is increasing rapidly due to rapid canopy development and high evaporative demand. Growers are encouraged to monitor soil moisture carefully. High daytime temperatures in combination with water stress can lead to major shedding (squares and flowers) events which lower fruit retention and delay crop maturity (extend more of primary bloom into monsoon). HARQUAHALA COTTON DEVELOPMENT ADVISORY JUN 17, 2001 PLANTING DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | v | | | | | 3/15******************************* 1541 | | | | v| | | | | | 4/1 ************************** 1325 | | | | v | | | | | | 4/15************************ 1220 | | | v| | | | | | | 5/1 ******************** 983 | | v | | | | | | | | 5/15************** 720 | | | | | | | | | | | 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 16 v = Heat Units on JUN 9; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 1780; Last year = 1814 HU last week = 155 HISTORICAL STATISTICS -------------------------------- Last Week : JUN 10 - JUN 16 HIGH LOW HUs DEWPT RAIN Recorded 100 62 155 38 0.00 PINK BOLLWORM EMERGENCE -------------------------------- Spring emergence of PBW should be about 92% complete at this time. ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 1.95" 1.56" 1.37" .95" .52" WEATHER UPDATE -------------------------------- High pressure will dominate Arizona weather this week. Expect mostly sunny weather with very hot temperatures. Dry weather and low humidity are expected in western Arizona. Humidity will seep into southeast and perhaps central areas during the week. This higher humidity will raise night temperatures and trigger a few showers in higher elevation areas. Temperatures should run about 3-5 degrees above normal for the week. HARQUAHALA COTTON DEVELOPMENT ADVISORY JUN 24, 2001 PLANTING DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | v | | | | 3/15*********************************** 1732 | | | | | v | | | | | 4/1 ****************************** 1516 | | | | v | | | | | 4/15**************************** 1411 | | | | v | | | | | | 5/1 *********************** 1174 | | v | | | | | | | 5/15****************** 911 | | | | | | | | | | | 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 23 v = Heat Units on JUN 16; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 1971; Last year = 1984 HU last week = 191 HISTORICAL STATISTICS -------------------------------- Last Week : JUN 17 - JUN 23 HIGH LOW HUs DEWPT RAIN Recorded 106 73 191 53 0.00 PINK BOLLWORM EMERGENCE -------------------------------- ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 2.07" 1.72" 1.55" 1.16" .73" WEATHER UPDATE -------------------------------- A tropical disturbance will move through AZ early in the week, bringing partly cloudy skies, increased humidity, and a chance for rain through Tuesday. Temp- eratures will run slightly below normal through mid-week. Dry air is expected to move in by mid-week, bringing a return to above normal temperatures and reducing the likelihood of further precipitation. HARQUAHALA COTTON DEVELOPMENT ADVISORY JUL 1, 2001 PLANTING DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | v | | | | 3/15************************************** 1907 | | | | | v| | | | | 4/1 ********************************** 1691 | | | | | v | | | | | 4/15******************************** 1586 | | | | v| | | | | | 5/1 *************************** 1349 | | | v | | | | | | 5/15********************** 1086 | | | | | | | | | | | 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 30 v = Heat Units on JUN 23; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 2146; Last year = 2171 HU last week = 176 HISTORICAL STATISTICS -------------------------------- Last Week : JUN 24 - JUN 30 HIGH LOW HUs DEWPT RAIN Recorded 104 67 176 48 0.00 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 2.3" 1.96" 1.79" 1.42" 1" WEATHER UPDATE -------------------------------- The monsoon has arrived in AZ a little ahead of schedule. The normal arrival date is about 7 July in many cotton production areas. This first week of the monsoon could be eventful. The atmosphere is set up in a pattern that should support heavy and intense thunderstorms in much of southern and central AZ. Expect very hot temperatures through mid-week with rising dew points. Some slight cooling is expected later in the week once the humidity gets fully entrenched. Thunderstorms are possible each day, especially adjacent to mountain areas. Both temperature and humidity (dew point) should average above normal for the week. HARQUAHALA COTTON DEVELOPMENT ADVISORY JUL 8, 2001 PLANTING DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | v | | | | 3/15****************************************** 2105 | | | | | | v | | | | 4/1 ************************************** 1889 | | | | | |v | | | | 4/15************************************ 1784 | | | | | v | | | | | 5/1 ******************************* 1547 | | | | v | | | | | | 5/15************************** 1284 | | | | | | | | | | | 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 7 v = Heat Units on JUN 30; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 2344; Last year = 2371 HU last week = 198 HISTORICAL STATISTICS -------------------------------- Last Week : JUL 1 - JUL 7 HIGH LOW HUs DEWPT RAIN Recorded 104 77 198 61 0.51 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 2.38" 2.13" 1.97" 1.62" 1.22" WEATHER UPDATE -------------------------------- The monsoon is expected to remain quite active through mid-week, then decline somewhat in activity as high pressure builds back over AZ. Expect warm & humid conditions through mid-week with a chance for thunderstorms each day. Monday appears to be the best day for rain. Sunny & much hotter weather is expected to develop by the weekend with temperatures again approaching 110 degrees in western AZ. HARQUAHALA COTTON DEVELOPMENT ADVISORY JUL 15, 2001 PLANTING DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | |v | | | 3/15********************************************** 2297 | | | | | | v | | | | 4/1 ****************************************** 2081 | | | | | | v | | | | 4/15**************************************** 1976 | | | | | v | | | | 5/1 *********************************** 1739 | | | | | v | | | | | 5/15****************************** 1476 | | | | | | | | | | | 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 14 v = Heat Units on JUL 7; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 2536; Last year = 2547 HU last week = 193 HISTORICAL STATISTICS -------------------------------- Last Week : JUL 8 - JUL 14 HIGH LOW HUs DEWPT RAIN Recorded 104 74 193 60 0.00 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 2.33" 2.33" 2.22" 1.87" 1.48" WEATHER UPDATE -------------------------------- High pressure will return to Arizona this week bringing mostly sunny skies, warmer temperatures and lower humidity. Expect normal temperatures, moderate humidity and widely scattered thunderstorms. The most likely locations for rainfall are near high elevation areas of southeast Arizona. HARQUAHALA COTTON DEVELOPMENT ADVISORY JUL 22, 2001 PLANTING DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | | v | | | 3/15************************************************** 2480 | | | | | | |v | | | 4/1 ********************************************* 2264 | | | | | | v| | | | 4/15******************************************* 2159 | | | | | | v | | | | 5/1 ************************************** 1922 | | | | | v| | | | | 5/15********************************* 1659 | | | | | | | | | | | 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 21 v = Heat Units on JUL 14; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 2719; Last year = 2735 HU last week = 183 HISTORICAL STATISTICS -------------------------------- Last Week : JUL 15 - JUL 21 HIGH LOW HUs DEWPT RAIN Recorded 104 70 183 50 0.00 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 2.87" 2.87" 2.87" 2.64" 2.16" WEATHER UPDATE -------------------------------- Monsoon flow is expected to impact central and eastern sections of the state this week. Expect sunny to partly cloudy weather with hot temperatures and increasing dew points in central and eastern AZ. Western AZ should remain sunny and dry with moderate humidity. Widely scattered thunderstorms are possible in central and eastern production areas each day, especially adjacent to high elevation areas. HARQUAHALA COTTON DEVELOPMENT ADVISORY JUL 29, 2001 PLANTING DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | | v | | | 3/15***************************************************** 2664 | | | | | | | v | | | 4/1 ************************************************* 2448 | | | | | | | v | | | 4/15*********************************************** 2343 | | | | | | v | | | | 5/1 ****************************************** 2106 | | | | | | v | | | | 5/15************************************* 1843 | | | | | | | | | | | 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 28 v = Heat Units on JUL 21; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 2903; Last year = 2926 HU last week = 185 HISTORICAL STATISTICS -------------------------------- Last Week : JUL 22 - JUL 28 HIGH LOW HUs DEWPT RAIN Recorded 106 71 185 47 0.00 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 2.78" 2.78" 2.78" 2.78" 2.42" WEATHER UPDATE -------------------------------- Monsoon moisture will reside over AZ for much of the week. Expect above normal cloudiness & humidity with a good chance for scattered thunderstorms during the first half of the week. Drier air is expected to move into the state late in the week, lessening cloudiness, humidity, & the probability of precipitation. Temperatures should run slightly below normal at the beginning of the week, then increase to normal levels late in the week. HARQUAHALA COTTON DEVELOPMENT ADVISORY AUG 5, 2001 PLANTING DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | | v | | 3/15********************************************************* 2866 | | | | | | | v | | | 4/1 ***************************************************** 2650 | | | | | | | v | | | 4/15*************************************************** 2545 | | | | | | |v | | | 5/1 ********************************************** 2308 | | | | | | v | | | | 5/15***************************************** 2045 | | | | | | | | | | | 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 4 v = Heat Units on JUL 28; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 3105; Last year = 3130 HU last week = 202 HISTORICAL STATISTICS -------------------------------- Last Week : JUL 29 - AUG 4 HIGH LOW HUs DEWPT RAIN Recorded 104 78 202 62 0.05 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 2.53" 2.53" 2.53" 2.53" 2.51" WEATHER UPDATE -------------------------------- Typical early August weather is expected in AZ this week. Expect very hot temperatures and above normal levels of humidity throughout the week. High humidity will limit radiational cooling at night and keep minimum temperatures above normal. A tropical disturbance will pass through AZ during the middle of the week and produce an upswing in thunderstorm activity, particularly in central and eastern production areas. Rainfall is less likely along the Colorado River. HARQUAHALA COTTON DEVELOPMENT ADVISORY AUG 12, 2001 PLANTING DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | | | v | | 3/15************************************************************* 3066 | | | | | | | v | | 4/1 ********************************************************* 2850 | | | | | | | v | | | 4/15******************************************************* 2745 | | | | | | | v | | | 5/1 ************************************************** 2508 | | | | | | v | | | 5/15********************************************* 2245 | | | | | | | | | | | 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 11 v = Heat Units on AUG 4; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 3305; Last year = 3335 HU last week = 200 HISTORICAL STATISTICS -------------------------------- Last Week : AUG 5 - AUG 11 HIGH LOW HUs DEWPT RAIN Recorded 103 77 200 64 0.68 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 2.16" 2.18" 2.18" 2.18" 2.18" WEATHER UPDATE -------------------------------- Another typical week of monsoon weather. Expect hot & humid weather all week. Thunderstorms are possible each day, especially in central & southeast AZ. High humidity will limit radiational cooling at night & keep minimum temperatures above normal. The forecasted levels of heat & humidity will likely produce heat stress conditions in central & western AZ which may impact fruit retention in late planted fields and fields being pushed into a top crop. HARQUAHALA COTTON DEVELOPMENT ADVISORY AUG 19, 2001 PLANTING DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | | | v | | 3/15***************************************************************** 3263 | | | | | | | | v | | 4/1 ************************************************************* 3047 | | | | | | | | v | | 4/15*********************************************************** 2942 | | | | | | | v | | | 5/1 ****************************************************** 2705 | | | | | | | v | | | 5/15************************************************* 2442 | | | | | | | | | | | 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 18 v = Heat Units on AUG 11; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 3502; Last year = 3538 HU last week = 197 HISTORICAL STATISTICS -------------------------------- Last Week : AUG 12 - AUG 18 HIGH LOW HUs DEWPT RAIN Recorded 103 76 197 66 0.41 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 1.66" 1.91" 1.91" 1.91" 1.91" WEATHER UPDATE -------------------------------- Typical monsoon season weather will again dominate AZ weather this week. Expect hot & humid weather with a good chance for afternoon thunderstorms each day. Precipitation is most likely in southeast & central AZ & adjacent to mountain areas. Both temperature & humidity levels should run close to normal for this time of year. HARQUAHALA COTTON DEVELOPMENT ADVISORY AUG 26, 2001 PLANTING DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | | | v 3446 | 3/15********************************************************************* | | | | | | | | v | | 4/1 ***************************************************************** 3230 | | | | | | | | v | | 4/15************************************************************** 3125 | | | | | | | |v | | 5/1 ********************************************************** 2888 | | | | | | | v | | | 5/15**************************************************** 2625 | | | | | | | | | | | 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 25 v = Heat Units on AUG 18; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 3685; Last year = 3742 HU last week = 181 HISTORICAL STATISTICS -------------------------------- Last Week : AUG 19 - AUG 25 HIGH LOW HUs DEWPT RAIN Recorded 105 70 181 47 0.00 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 1.88" 2.21" 2.38" 2.5" 2.5" WEATHER UPDATE -------------------------------- Sunny and dry through mid-week with near record high temperatures. Higher humidity, cooler temperatures, and scattered thunderstorms are expected later in the week with the return to monsoon flow. Precipitation is most likely in southeast and central AZ later in the week. For the week, expect temperatures to run 3-5 degrees above normal. This will be the last weather update for the 2001 season. Have a safe and profitable harvest season ! To access local weather information anytime, log on to the AZMET web page at: http://ag.arizona.edu/azmet HARQUAHALA COTTON DEVELOPMENT ADVISORY AUG 26, 2001 PLANTING DATE+-------------------------------------------------------------------------+ | | | | | | | | | | | | | | | | v 3446 | 3/15********************************************************************* | | | | | | | | v | | 4/1 ***************************************************************** 3230 | | | | | | | | v | | 4/15************************************************************** 3125 | | | | | | | |v | | 5/1 ********************************************************** 2888 | | | | | | | v | | | 5/15**************************************************** 2625 | | | | | | | | | | | 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 25 v = Heat Units on AUG 18; S,M,F = Short, Medium, and Full Season Varieties HEAT UNITS -------------------------------- Heat Unit (HU) accumulation since Jan 1 = 3685; Last year = 3742 HU last week = 181 HISTORICAL STATISTICS -------------------------------- Last Week : AUG 19 - AUG 25 HIGH LOW HUs DEWPT RAIN Recorded 105 70 181 47 0.00 ESTIMATED WATER USE -------------------------------- Planting date : 3/15 4/1 4/15 5/1 5/15 Water Use (last week): 1.88" 2.21" 2.38" 2.5" 2.5" WEATHER UPDATE -------------------------------- Sunny and dry through mid-week with near record high temperatures. Higher humidity, cooler temperatures, and scattered thunderstorms are expected later in the week with the return to monsoon flow. Precipitation is most likely in southeast and central AZ later in the week. For the week, expect temperatures to run 3-5 degrees above normal. This will be the last weather update for the 2001 season. Have a safe and profitable harvest season ! To access local weather information anytime, log on to the AZMET web page at: http://ag.arizona.edu/azmet