August 24, 2017
Summary: The very weak upper low we’ve been talking about the past few days is now beginning to move into southern California and will dissipate. This gives ample opportunity for upper level high pressure to begin building eastward into California from the Pacific. We will enjoy one more day of near average temperatures but as the high builds and eventually interconnects with another high over the Four Corners region, temperatures will rise accordingly. Some models project temperatures will rise to near 107 in the hottest regions Sunday through Tuesday. Models do vary somewhat on solutions beyond Tuesday as some indicate high pressure will remain in place while others show a trough of low pressure moving into the west coast, allowing marine air to move inland. It would also lower pressures aloft.
The two week model is quite interesting this morning. It indicates the possibility of moisture, from either the monsoon or a tropical storm, moving into southern and possibly central California during that time frame. For now, there is nothing to worry about, but as we get closer in time it will be interesting to see if some models hold onto that idea or maintain a dry forecast.
Forecast: Mostly clear skies through Sunday. Mostly clear skies will continue Sunday night through Thursday.
Short Term:
| Madera 97/64/100/66/102 | Reedley 98/65/100/66/103 | Dinuba 97/64/99/66/100 | |
| Porterville 98/64/101/66/103 | Lindsay 98/63/100/65/102 | Delano 99/67/101/68/103 | |
| Bakersfield 98/74/101/75/104 | Arvin 100/68/101/69/104 | Taft 98/74/100/77/102 | |
| Lamont 100/70/101/72/104 | Pixley 98/63/100/66/102 | Tulare 97/63/99/65/101 | |
| Woodlake 98/63/99/65/103 | Hanford 98/66/101/67/103 | Orosi 98/64/99/66/102 | |
Seven Day Forecast:
| Sunday
Mostly clear 77/105 |
Monday
Mostly clear 71/105 |
Tuesday
Mostly clear 70/103 |
Wednesday
Mostly clear 70/103 |
Thursday
Mostly clear 78/100 |
Two Week Outlook: August 31 through September 5: This model is rather interesting this morning. It indicates a moist, southerly flow will be moving into southern California from a possible tropical system not even on the weather map yet. On paper, central California is on the northern rim of activity. It’s too far out to put rain in the forecast, but it is a model one doesn’t see often. Temperatures will remain at least marginally above average.
September: This model shows upper level high pressure more dominant over the western U.S. There’s no clear indicator of above or below average rainfall as we move into the fall season. With that in mind, we’ll call for near average precipitation for the month.
September, October, November: It appears temperatures overall will rise to above average values for the bulk of this time frame. Upper level high pressure is also more dominant with precipitation, believe it or not, predicted to be somewhat near average.
Winds: Winds will be generally less than 15 MPH through Sunday and mainly out of the northwest afternoons and evenings.
Rain: Expect dry weather indefinitely.
Afternoon Dew Points Today: Low to mid 50s. Kern: Low to mid 50s
Relative Humidity Forecast: Hanford, 20%/80% Bakersfield, 20%/55%
Actual Humidity August 22, 2017: Delano, 83%/29%, Porterville, NA
Percentage of Sunshine Today/Tomorrow: Visalia: Today 100% tomorrow 100%, Bakersfield: Today 100% tomorrow 100%.
ET Rates Over the Past Seven Days August 22, 2017: Stratford 1.79, Parlier 1.41, Blackwell 1.93, Lindcove 1.51, Arvin 1.87, Orange Cove 1.79, Porterville 1.53, Delano 1.65, Madera Two 1.44. Courtesy University of California *=estimate, NA=not available.
Seven Day Soil Temperatures: Stratford 75, Parlier 80, Blackwell 79, Lindcove 78, Arvin NA, Orange Cove 81, Porterville 84, Delano 83, Madera Two 81
Mean Temperatures for August Month So Far: 82.5. +3.8
Record Temperatures: 112/51. Average Temperatures: 96/64
Cooling Degree Days This Season: 1626, +305 Courtesy of the NWS
Precipitation: Seasonal total/average/above or below average:
Since August 22, 2017 Fresno: 17.20 season / +5.88 or +5.88, Month to Date: T
Since August 22, 2017 Bakersfield: 7.88, or 1.46, Month to Date: T, Water year season is from October 1st through September.
Chilling Hours November 1st through February 28: Orange Cove, Parlier, Arvin, Shafter, , Stratford, Madera two, Alpaugh, Delano, Lindcove, Porterville, Hours at 45 or below 45.
Sunrise: 6:24 am Sunset: 7:38 Hours of Daylight: 13:18
Yesterday’s Weather
MAE : Madera 253 : DH1700 / 97 / 64 / 0.00 /
FAT : Fresno Airport 333 : DH1700 / 97 / 68 / 0.00 /
HJO : Hanford Airport 242 : DH1700 / 98 / 63 / 0.00 /
NLC : Lemoore Naval AS 234 : DH1700 / 100 / 68 / 0.00 /
BFL : Bakersfield Airport 496 : DH1700 / 98 / 73 / 0.00 /
VIS : Visalia Airport 292 : DH1700 / 95 / 65 / 0.00 /
ATEC1 : Avenal 787 : DH1653 / 97 / 68 / 0.00 /
PTV : Porterville Airport 442 : DH1700 / 97 / 66 / 0.00 /
TFTC1 : Taft 759 : DH1653 / 96 / 76 / 0.00 /
LOSC1 : Los Banos 120 : DH1600 / 96 / 66 / 0.00 /
Rainfall:
To date Last year Average Annual ave
STOCKTON 0.00 21.79 158 16.69 121 13.77 14.06
MODESTO 0.00 16.93 132 15.61 122 12.84 13.11
MERCED 0.00 16.03 131 14.66 120 12.20 12.50
MADERA 0.00 14.18 121 12.96 110 11.76 12.02
FRESNO 0.00 17.20 152 14.29 126 11.32 11.50
HANFORD 0.00 11.05 111 8.26 83 9.92 10.10
BAKERSFIELD 0.00 7.82 123 5.43 85 6.38 6.47
BISHOP 0.00 9.18 185 3.88 78 4.95 5.18
SALINAS 0.00 16.45 130 13.47 106 12.66 12.83
PASO ROBLES 0.00 16.14 129 8.06 64 12.52 12.78
SANTA MARIA 0.00 18.44 134 9.00 65 13.80 13.95
Rainfall season from October 1st through September 30th
Next Report: Friday, August 25