September 26, 2020
National Ghost Hunting Day
Summary: A zonal flow will continue flowing into north America for one more day. However, the main energy has moved through the Pacific Northwest and into the northern Rockies. Off shore, we have a developing upper level high which will begin to shift eastward to just off the Oregon coast by Sunday morning. From there, it will center over Oregon Sunday night through Tuesday. Enjoy today as summer will make its triumphant return early next week.
The upper high will develop a massive ridge into Canada with the bottom side expanding southward through the Desert Southwest. This will allow a deep cold trough of low pressure to dig into the eastern half of the country where temperatures will be well below average.
The main challenge, especially for Monday and Tuesday, will be forecasting temperatures due to the fact a brief surface high will jump up over the Great Basin for a short term off shore flow Sunday into Monday. This will allow smoke from the Sierra fires a chance to be pushed over the valley, possibly keeping daytime highs down a bit.
Model information shows temperatures near the century mark Monday and Tuesday, but the smoke may be dense enough to interfere with that projection.
This pattern will continue for all of the upcoming week with summer-like temperatures at least into next weekend. Some models are showing a break down of the high next Sunday or Monday. Typically, however, when these patterns develop during the fall season, they are tough to break.
Forecast: Mostly clear skies through Tuesday. Mostly clear skies Tuesday night through Saturday.
Short Term:
| Madera 87/56/91/58/97 | Reedley 87/56/91/59/97 | Dinuba 86/55/90/57/96 |
| Porterville 85/55/91/58/98 | Lindsay 85/54/90/57/98 | Delano 86/57/92/60/98 |
| Bakersfield 85/65/92/68/99 | Taft 87/67/91/71/98 | Arvin 87/60/93/66/100 |
| Lamont 85/61/93/65/100 | Pixley 87/56/91/59/98 | Tulare 85/54/90/58/96 |
| Woodlake 86/54/91/57/97 | Hanford 87/57/90/60/97 | Orosi 86/54/90/57/96 |
Seven Day Forecast:
| Tuesday
Mostly clear 61/100 |
Wednesday
Mostly clear 62/98 |
Thursday
Mostly clear 61/98 |
Friday
Mostly clear 60/96 |
Saturday
Mostly clear 58/93 |
Two Week Outlook: October 3 through October 9: 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.
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 will be generally at or less than 10 MPH late mornings through the afternoons through Tuesday. 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: Mid to upper 50s. Kern: Mid to upper 40s.
Actual Humidity Range Yesterday: Delano, 83%/35%, Porterville, 91%/31%
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 1.22, Blackwell Corners 1.30, Arvin 1.44, Orange Cove 1.26, Porterville 1.04, Delano 1.23. Courtesy University of California *=estimate, NA=not available.
Seven Day Soil Temperatures: Stratford 73, Parlier 74, Blackwell NA, Arvin, 75, Orange Cove 79, Porterville 72, Delano 71
Record Temperatures: 107/43. Average Temperatures: 88/56
Cooling Degree Days This Season: 2032 +473
Courtesy of the NWS
Average Temperature for September So Far: 76.7 +2.7
Precipitation: Seasonal total for Fresno/average + or -. 7.63 or -3.82. Month to Date: .T -.12
Since Oct 1, 2019, Fresno, 7.63 -3.69. 7.20, or +.84. Bakersfield, 7.20 +.75. Month to Date: .T -.06
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: 6:51 Sunset: 6:47 pm Hours of Daylight: 11:58
Yesterday’s Weather
MCE : Merced 153 : DH1700 / 85 / 59 / 0.00 /
MAE : Madera 253 : DH1700 / 87 / 57 / 0.00 /
FAT : Fresno Airport 333 : DH1700 / 88 / 63 / 0.00 /
HJO : Hanford Airport 242 : DH1700 / 89 / 62 / 0.00 /
NLC : Lemoore Naval AS 234 : DH1700 / 90 / 59 / 0.00 /
BFL : Bakersfield Airport 496 : DH1700 / 88 / 63 / 0.00 /
VIS : Visalia Airport 292 : DH1700 / 87 / 59 / 0.00 /
ATEC1 : Avenal 787 : DH1700 / 86 / 62 / 0.00 /
PTV : Porterville Airport 442 : DH1700 / 88 / 57 / 0.00 /
LOSC1 : Los Banos 120 : DH1700 / 84 / 60 / 0.00 /
Rainfall: 24hr W.Y. % Last Y. % Ave. Year ave.
STOCKTON 0.00 8.35 60 18.60 133 13.98 14.06
MODESTO 0.00 6.94 53 13.47 103 13.03 13.11
MERCED 0.00 9.54 77 13.27 107 12.44 12.50
MADERA 0.00 6.02 50 11.42 95 11.97 12.02
FRESNO 0.00 7.63 67 11.85 103 11.45 11.50
HANFORD 0.00 6.62 66 9.50 94 10.06 10.10
BAKERSFIELD 0.00 7.20 112 7.82 121 6.45 6.47
BISHOP 0.00 2.25 44 8.48 166 5.12 5.18
SALINAS 0.00 9.18 72 13.89 109 12.78 12.83
PASO ROBLES 0.00 11.47 90 14.88 117 12.71 12.78
SANTA MARIA 0.00 10.66 77 15.68 113 13.91 13.95
Next report: September 28/morning