September 28, 2020
National Sons Day
Summary: Strong upper level high pressure is now centered over Oregon and is ridging further north into western Canada. The high now essentially covers the western one-third of the U.S. the air aloft is very summer-like. The temperature at Sandburg at 6:00am was 73 degrees with winds out of the east at 28 MPH, gusting to 36. That easterly wind is indicative of a short-term off shore flow which is underway. Above Oakland this morning, you have to go all the way up to 17,400 feet to find the freezing level.
With an easterly flow above the valley floor, smoke from the fires will be pushed westward over the valley. This might impact daytime temperatures. Model information shows temperature in the upper 90s the next few days, however if the smoke is dense enough, some locations could come in a tad lower.
The bottom line is this week will be just like summer. The only difference will be shorter days and longer nights.
An amplified pattern will continue through Saturday. there will be the big upper high over the west and a cool trough of low pressure east of the Rockies. Most models show the high flattening out Sunday and Monday. This will begin to bring temperatures down to some semblance of seasonal levels. There is no chance of precipitation for the next week and more than likely the next ten days.
Forecast: Mostly clear skies through Wednesday. Mostly clear skies Wednesday night through Monday.
Short Term:
| Madera 96/58/96/59/95 | Reedley 97/59/97/60/96 | Dinuba 95/58/95/59/94 |
| Porterville 97/58/97/60/95 | Lindsay 96/57/96/59/95 | Delano 97/61/97/62/96 |
| Bakersfield 98/71/99/71/97 | Taft 97/73/97/74/96 | Arvin 99/63/100/64/97 |
| Lamont 98/65/98/66/97 | Pixley 97/58/98/61/95 | Tulare 95/57/96/58/95 |
| Woodlake 96/57/96/58/95 | Hanford 96/62/96/63/95 | Orosi 95/57/95/59/94 |
Seven Day Forecast:
| Thursday
Mostly clear 59/97 |
Friday
Mostly clear 60/96 |
Saturday
Mostly clear 58/95 |
Sunday
Mostly clear 56/91 |
Monday
Mostly clear 56/90 |
Two Week Outlook: October 5 through October 11: This model is indicating a strong ridge of upper level high pressure will be over the western one-third of the U.S. for very dry conditions. Temperatures will remain above to possibly well above average.
October: This model essentially depicts the entire lower 48 with above average temperatures over the next 30 days. The most pronounced temperature anomalies will be over the Desert Southwest. This model also suggests there will be an equal chance of above or below average precipitation.
October, November, December: This model reflects the influence of La Nina. It paints above average temperatures over much of the country, especially the Desert southwest, and to a lesser extent, central California. Drier than average conditions are anticipated over southern California while northern California could possibly luck out with near average rainfall. Above average precipitation is expected over the Pacific Northwest.
Winds Discussion: Winds will be generally at or less than 10 MPH late mornings through the afternoons through Thursday. Winds during the night and morning hours will be generally at or less than 5 MPH with periods of near calm conditions.
Rain Discussion: Expect dry conditions for at least the next 7 to 10 days.
Afternoon Dew Points Today: Low to mid 50s. Kern: Mid to upper 40s.
Actual Humidity Range Yesterday: Delano, 74%/34%, Porterville, 95%/26%
Percentage of Sunshine Today/Tomorrow: Visalia: Today: 100%, tomorrow 100%. Bakersfield: Today: 100% Tomorrow: 100%
ET Rates Over the Past Seven Days: Stratford 1.41, Parlier 1.18, Blackwell Corners 1.29, Arvin 1.42, Orange Cove 1.22, Porterville 1.01, Delano 1.22. Courtesy University of California *=estimate, NA=not available.
Seven Day Soil Temperatures: Stratford 72, Parlier 74, Blackwell NA, Arvin, 75, Orange Cove 79, Porterville 72, Delano 71
Record Temperatures: 104/43. Average Temperatures: 87/56
Cooling Degree Days This Season: 2052 +481
Courtesy of the NWS
Average Temperature for September So Far: 76.8 +2.8
Precipitation: Seasonal total for Fresno/average + or -. 7.63 or -3.84. Month to Date: .T -.14
Since Oct 1, 2019, Fresno, 7.63 -3.69. 7.20, or +.84. Bakersfield, 7.20 +.74. Month to Date: .T -.07
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: 6:53 Sunset: 6:44 pm Hours of Daylight: 11:54
Yesterday’s Weather
MCE : Merced 153 : DH1700 / 92 / 60 / 0.00 /
MAE : Madera 253 : DH1700 / 91 / 58 / 0.00 /
FAT : Fresno Airport 333 : DH1700 / 92 / 65 / 0.00 /
HJO : Hanford Airport 242 : DH1700 / 92 / 60 / 0.00 /
NLC : Lemoore Naval AS 234 : DH1700 / 93 / 60 / 0.00 /
BFL : Bakersfield Airport 496 : DH1600 / 91 / 66 / 0.00 /
VIS : Visalia Airport 292 : DH1700 / 91 / 60 / 0.00 /
ATEC1 : Avenal 787 : DH1600 / 89 / 63 / 0.00 /
PTV : Porterville Airport 442 : DH1700 / 91 / 64 / 0.00 /
Rainfall: 24hr W.Y. % Last Y. % Ave. Year ave.
STOCKTON 0.00 8.35 60 18.60 133 14.01 14.06
MODESTO 0.00 6.94 53 13.47 103 13.06 13.11
MERCED 0.00 9.54 77 13.27 106 12.47 12.50
MADERA 0.00 6.02 50 11.42 95 11.99 12.02
FRESNO 0.00 7.63 67 11.85 103 11.47 11.50
HANFORD 0.00 6.62 66 9.50 94 10.07 10.10
BAKERSFIELD 0.00 7.20 111 7.82 121 6.46 6.47
BISHOP 0.00 2.25 44 8.48 165 5.14 5.18
SALINAS 0.00 9.18 72 13.89 109 12.80 12.83
PASO ROBLES 0.00 11.47 90 14.88 117 12.74 12.78
SANTA MARIA 0.00 10.66 77 15.68 113 13.92 13.95
Next report: September 29/morning