July 18, 2020
Summary: The marine layer continues to hover at around 1,800 feet along the central coast. The winds this morning in the Delta are fairly light out of the southwest at 11 MPH. Upper level high pressure essentially covers the southern tier of states from the southeast U.S. across the country into southern California. A weak upper low remains off shore, however it is being pushed further off shore by the high expanding over the Desert Southwest.
Models still show the dome of high pressure remaining over California through Monday. This high is not as strong as the one earlier this month that generated the intense heat. Isolated thunderstorms will be possible over the higher elevations of the Sierra Nevada today and possibly Sunday with some high clouds possibly drifting out over the valley floor this afternoon and evening, but that’s about it.
That same offshore low we’ve been talking about the past few days will move northeastward into northern California Tuesday night and Wednesday, eventually morphing into a deep trough that extends from the Pacific Northwest into northern California. This will be the catalyst for our next cooling trend as the marine layer again deepens and surges into the valley, possibly as early as Tuesday but for sure Wednesday.
Forecast: Clear skies through Sunday. Mostly clear Sunday night through Saturday.
Short Term:
| Madera 101/65/101/66/99 | Reedley 101/66/101/67/100 | Dinuba 100/65/100/.66/99 |
| Porterville 102/66/102/67/101 | Lindsay 101/65/101/66/100 | Delano 102/68/102/69/101 |
| Bakersfield 102/75/102/75/101 | Taft 100/77/101/77/99 | Arvin 102/68/102/69/101 |
| Lamont 102/70/102/70/100 | Pixley 101/66/101/67/100 | Tulare 100/64/100/65/99 |
| Woodlake 99/65/100/66/99 | Hanford 101/66/101/67/100 | Orosi 100/65/101/66/99 |
Seven Day Forecast:
| Tuesday
Mostly clear 64/99 |
Wednesday
Mostly clear 59/96 |
Thursday
Mostly clear 58/94 |
Friday
Mostly clear 58/98 |
Saturday
Mostly clear 63/101 |
Two Week Outlook: July 25 through July 31: This model is indicating California will be sandwiched between low pressure over the Pacific Northwest and upper level high pressure over the Desert Southwest. Typically, this results in a dry southwesterly flow and near average temperatures.
July: This model indicates warmer than average temperatures over the next four weeks. The usual dry pattern will prevail in the San Joaquin Valley with the chance of precipitation on any given day being almost nil. Average precipitation for the month is .01.
July, August, September: This time of year, the 90 day out look is no secret. July and August will be hot and dry while September has a minor risk of precipitation, mainly from the tropics. This out look appears fairly typical. Marginally above average temperatures are expected with near average precipitation, which is a meaningless projection.
Winds Discussion: Winds during the afternoon and evening will be mainly out of the northwest at 5 to 12 MPH with locally stronger gusts through Wednesday. winds during the night and morning hours will be variable to 7 MPH 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. Humidity values ranging from 25%/75% at Visalia. Bakersfield 20%/55%
Actual Humidity range July 16, 2020: Delano, 68%/30%, Porterville, 64%/25%
Percentage of Sunshine Today/Tomorrow: Visalia: Today: 100%, tomorrow 100%. Bakersfield: Today: 100% Tomorrow: 100%
ET Rates Over the Past Seven Days: Stratford 2.12, Parlier 2.01, Blackwell Corner 2.45, Arvin 2.30, Orange Cove 2.21, Porterville 2.11, Delano 1.97. Courtesy University of California *=estimate, NA=not available.
Seven Day Soil Temperatures: Stratford 77, Parlier 82, Blackwell NA, Arvin, 81, Orange Cove 84, Porterville 85, Delano 77
Record Temperatures: 111/54. Average Temperatures: 99/65
Cooling Degree Days this Season: 917 +203
Courtesy of the NWS
Average temperature for July so far: 80.6 +1.8
Precipitation: Seasonal total for Fresno/average + or 7.63 or -3.69. Month to Date: .00 -.01
Since Oct 1, 2019, Bakersfield: 7.20, or +.85. 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: 5:54, Sunset: 8:16 pm. Hours of Daylight: 14:21
Yesterday’s Weather:
MCE : Merced 153 : DH1700 / 96 / 64 / 0.00 /
MAE : Madera 253 : DH1700 / 100 / 63 / 0.00 /
FAT : Fresno Airport 333 : DH1700 / 100 / 70 / 0.00 /
HJO : Hanford Airport 242 : DH1700 / 100 / 65 / 0.00 /
NLC : Lemoore Naval AS 234 : DH1700 / 101 / 65 / 0.00 /
BFL : Bakersfield Airport 496 : DH1700 / 100 / 73 / 0.00 /
VIS : Visalia Airport 292 : DH1700 / 98 / 65 / 0.00 /
PTV : Porterville Airport 442 : DH1700 / 100 / 67 / 0.00 /
LOSC1 : Los Banos 120 : DH1600 / 93 / 62 / 0.00 /
Rainfall: 24hr W.Y. % Last Y. % Ave. Year ave.
STOCKTON 0.00 8.35 61 18.37 134 13.76 14.06
MODESTO 0.00 6.94 54 13.35 104 12.83 13.11
MERCED 0.00 9.54 78 13.27 109 12.19 12.50
MADERA 0.00 6.02 51 11.42 97 11.75 12.02
FRESNO 0.00 7.63 67 11.85 105 11.32 11.50
HANFORD 0.00 6.62 67 9.50 96 9.91 10.10
BAKERSFIELD 0.00 7.20 113 7.80 123 6.35 6.47
BISHOP 0.00 2.25 47 8.47 177 4.78 5.18
SALINAS 0.00 9.16 73 13.80 109 12.63 12.83
PASO ROBLES 0.00 11.37 91 14.88 120 12.45 12.78
SANTA MARIA 0.00 10.61 77 15.68 114 13.78 13.95
Next report: July 20/morning