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August 25, 2017
Summary: Hottest locations this afternoon will top the century mark then the heat will really get rolling over the weekend. Excessive heat warnings are out for most of southern California and up the central coast this weekend, but so far not the San Joaquin Valley.
We have two upper level highs which will merge and eventually be centered over Nevada and northern California. This will smash the marine layer, a process that has already begun. The layer at Monterey is only 1,200 feet deep. No marine air is getting into the valley. Winds at Fairfield are out of the southwest at just 9 MPH. this heat wave is going to be with us awhile. Usually, during very hot weather, we see moisture begin to creep up from the south or southeast, but models insist this will not be the case so just isolated thunderstorms at best can be expected on any given afternoon over the high country.
Triple digits will last through at least Thursday and possibly Friday, depending on model of choice. There is a possibility of a weak low moving inland to our north about Thursday which theoretically would bring temperatures down. Other models, though, show this system remaining too far to the north to have much impact.
Forecast: Mostly clear skies through Monday. Mostly clear skies will continue Monday night through Friday.
Short Term:
| Madera 99/66/103/70/105 | Reedley 99/67/103/68/104 | Dinuba 98/66/102/68/103 | |
| Porterville 100/67/104/70/105 | Lindsay 100/66/102/69/105 | Delano 101/69/104/73/106 | |
| Bakersfield 102/75/105/80/106 | Arvin 102/72/104/77/107 | Taft 100/78/104/80/105 | |
| Lamont 101/73/105/77/106 | Pixley 100/67/104/70/105 | Tulare 99/66/103/69/104 | |
| Woodlake 100/66/103/70/105 | Hanford 100/66/104/70/104 | Orosi 99/67/103/70/104 | |
Seven Day Forecast:
| Monday
Mostly clear 73/106 |
Tuesday
Mostly clear 74/108 |
Wednesday
Mostly clear 73/104 |
Thursday
Mostly clear 70/102 |
Friday
Mostly clear 69/100 |
Two Week Outlook: September 1 through September 7: 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 Monday 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%/50%
Actual Humidity August 23, 2017: Delano, 76%/22%, 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 23, 2017: Stratford 1.86, Parlier 1.42, Blackwell 1.95, Lindcove 1.52, Arvin 1.87, Orange Cove 1.81, Porterville 1.53, Delano 1.67, Madera Two 1.46. Courtesy University of California *=estimate, NA=not available.
Seven Day Soil Temperatures: Stratford 76, Parlier 80, Blackwell 80, Lindcove 79, Arvin NA, Orange Cove 82, Porterville 84, Delano 83, Madera Two 81
Mean Temperatures for August Month So Far: 82.4. +3.8
Record Temperatures: 110/52. Average Temperatures: 96/63
Cooling Degree Days This Season: 1642, +408 Courtesy of the NWS
Precipitation: Seasonal total/average/above or below average:
Since August 23, 2017, Fresno: 17.20 season / +5.87 or +5.87, Month to Date: T
Since August 23, 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: 6:25 am Sunset: 7:35 Hours of Daylight: 13:14
Yesterday’s Weather
MCE : Merced 153 : DH1600 / 96 / 61 / 0.00 /
MAE : Madera 253 : DH1600 / 98 / 63 / 0.00 /
FAT : Fresno Airport 333 : DH1600 / 97 / 70 / 0.00 /
HJO : Hanford Airport 242 : DH1600 / 98 / 67 / 0.00 /
NLC : Lemoore Naval AS 234 : DH1700 / 102 / 67 / 0.00 /
BFL : Bakersfield Airport 496 : DH1700 / 97 / 74 / 0.00 /
VIS : Visalia Airport 292 : DH1700 / 96 / 68 / 0.00 /
ATEC1 : Avenal 787 : DH1657 / 97 / 68 / 0.00 /
PTV : Porterville Airport 442 : DH1700 / 96 / 67 / 0.00 /
TFTC1 : Taft 759 : DH1657 / 97 / 77 / 0.00 /
LOSC1 : Los Banos 120 : DH1600 / 96 / 64 / 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 15.61 121 12.85 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 11.33 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 T 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: Saturday, August 26