September 2, 2020
Summary: The marine layer this morning is 2,400 feet deep, according to the latest sounding at the naval installation at Fort Ord. there is modified marine air moving down the valley and there will be enough for near average temperatures again today. Currently, winds at Travis Air Force Base in the Delta are out of the southwest sustained at 18 MPH, gusting to 24. There’s also some sea breeze leaking over the Coast Range.
Overall, a high center is just off the Oregon/northern California coast and it will slide southeastward over California Thursday and Friday. By Saturday, a massive high will have developed with its center over Nevada, eventually building a big ridge northward through the Pacific Northwest. This high continues to show up on models as unusually strong. The clockwise circulation around the high will also bring the winds aloft out of the southeast, in effect, pumping hot air from the Desert Southwest into California. Some models continue to project hottest readings on the valley floor will approach the 110 degree mark. With the valley becoming capped under a dome of high pressure and its subsiding air mass, smoke and smog will continue to be trapped on the valley floor for poor air quality.
The heat wave will peak Sunday and Labor Day then the high will weaken by midweek. Even so, readings may still eclipse the century mark until we progress towards the latter part of next week or even next weekend when a trough of low pressure will approach the northern California coast, allowing temperatures to fall to double digits.
Forecast: Clear but hazy through Thursday. Mostly clear and extremely hot Friday through Tuesday. Mostly clear and a bit cooler Wednesday.
Short Term:
| Madera 94/61/97/65/100 | Reedley 95/62/97/64/100 | Dinuba 94/61/96/64/99 |
| Porterville 96/63/97/65/100 | Lindsay 95/61/97/63/99 | Delano 97/65/98/67/100 |
| Bakersfield 96/70/98/72/101 | Taft 96/73/97/74/100 | Arvin 98/67/99/70/101 |
| Lamont 98/67/98/68/101 | Pixley 95/62/97/65/99 | Tulare 94/61/96/64/99 |
| Woodlake 94/60/96/63/99 | Hanford 95/63/97/65/100 | Orosi 94/62/96/65/99 |
Seven Day Forecast:
| Saturday
Mostly clear 72/105 |
Sunday
Mostly clear 74/108 |
Monday
Mostly clear 74/107 |
Tuesday
Mostly clear 71/104 |
Wednesday
Mostly clear 68/101 |
Two Week Outlook: September 8 through September 14: This model indicates an amplified pattern with a big high over the western U.S. and a cool trough of low pressure east of the Rockies. This regime will keep temperatures above average with dry conditions.
September: This model is indicating basically the western half of the United States will have above average temperatures, continuing the trend of the summer season into the early fall. This model shows near average precipitation, which is minimal at best anyway.
September, October, November: This model always indicates above average temperatures for the western U.S. and this time around is no exception. As we head into the autumn season this model is indicating there will be equal chances of above or below precipitation.
Winds Discussion: Winds through Saturday will be mainly out of the northwest at 5 to 12 MPH afternoons and evenings and 3 to 6 MPH nights and early mornings with periods of near calm conditions.
Rain Discussion: Expect dry conditions for the next 7 to 10 days.
Afternoon Dew Points Today: Upper 50s to the lower 60s. Kern: Mid to upper 50s.
Actual Humidity range September 1, 2020: Delano, 97%/23%, Porterville, 79%/30%
Percentage of Sunshine Today/Tomorrow: Visalia: Today: 100%, tomorrow 100%. Bakersfield: Today: 100% Tomorrow: 100%
ET Rates Over the Past Seven Days: Stratford 1.72, Parlier 1.61, Blackwell Corner 1.85, Arvin 1.95, Orange Cove 1.74, Porterville 1.51, Delano 1.58. Courtesy University of California *=estimate, NA=not available.
Seven Day Soil Temperatures: Stratford 77, Parlier 78, Blackwell NA, Arvin, 80, Orange Cove NA, Porterville 77, Delano 74
Record Temperatures: 109/48. Average Temperatures: 94/61
Cooling Degree Days this Season: 1746 +404
Courtesy of the NWS
Average temperature for September so far: 79.0 +3.0
Precipitation: Seasonal total for Fresno/average + or -. 7.63 or -3.70. Month to Date: .00 -.00
Since Oct 1, 2019, Fresno, 7.63 -3.69. 7.20, or +.84. Bakersfield, 7.20 +.81. Month to Date: .00 -.00
Water year season is from October 1st through September.
Chilling Hours November 1st through February 28: Orange Cove, Parlier, Arvin, Shafter, Stratford, Delano, Lindcove, Porterville
Hours at 45 or below 45.
Sunrise: 6:32, Sunset: 7:23 pm. Hours of Daylight: 12:54
Yesterday’s Weather:
MCE : Merced 153 : DH1700 / 91 / 61 / 0.00 /
MAE : Madera 253 : DH1700 / 95 / 60 / 0.00 /
FAT : Fresno Airport 333 : DH1700 / 97 / 70 / 0.00 /
HJO : Hanford Airport 242 : DH1700 / 96 / 62 / 0.00 /
NLC : Lemoore Naval AS 234 : DH1700 / 97 / 67 / 0.00 /
BFL : Bakersfield Airport 496 : DH1700 / 96 / 72 / 0.00 /
VIS : Visalia Airport 292 : DH1700 / 94 / 62 / 0.00 /
ATEC1 : Avenal 787 : DH1700 / 96 / 69 / 0.00 /
PTV : Porterville Airport 442 : DH1700 / 96 / 64 / 0.00 /
TFTC1 : Taft 759 : DHM / M / M / M /
LOSC1 : Los Banos 120 : DH1600 / 90 / 62 / 0.00 /
Rainfall: 24hr W.Y. % Last Y. % Ave. Year ave.
STOCKTON 0.00 8.35 61 18.37 133 13.77 14.06
MODESTO 0.00 6.94 54 13.35 104 12.85 13.11
MERCED 0.00 9.54 78 13.27 109 12.21 12.50
MADERA 0.00 6.02 51 11.42 97 11.77 12.02
FRESNO 0.00 7.63 67 11.85 105 11.33 11.50
HANFORD 0.00 6.62 67 9.50 96 9.93 10.10
BAKERSFIELD 0.00 7.20 113 7.80 122 6.39 6.47
BISHOP 0.00 2.25 45 8.47 170 4.98 5.18
SALINAS 0.00 9.18 73 13.80 109 12.66 12.83
PASO ROBLES 0.00 11.47 91 14.88 118 12.56 12.78
SANTA MARIA 0.00 10.66 77 15.68 114 13.81 13.95
Next report: September 3/morning