July 10, 2020
Summary: Strong upper level high pressure over the Desert Southwest continues to expand northward and westward from its center near the New Mexico/Arizona border. The latest balloon sounding above San Diego indicated winds aloft below 30,000 feet are now out of the south/southeast while above Oakland, a southwesterly flow continues satellite imagery indicates a minimal amount of monsoon moisture is working its way northward into Arizona with high clouds now spreading into southeast California. The high clouds above central California are the remnants of an old tropical system and are meaningless as far as active weather is concerned.
This weekend, southern California and the Desert Southwest will be in the midst of a blistering heatwave as hottest locations approach 120 degrees over the lower desert regions. The heat belt will expand into central California with hottest locations approaching 110, especially Sunday and Monday. Tuesday appears to be a transitional day into a slow cooling trend as a trough of low pressure drops into the Pacific Northwest and the Rocky Mountain region, suppressing the high into northern Mexico and Texas. We could see temperatures back in double digits beginning Thursday of next week. Fortunately humidity values have been running only about 15% during the heat of the afternoon.
Forecast: Mostly clear and hot through Monday. Mostly clear and hot Monday night through Friday.
Short Term:
| Madera 101/64/105/66/106 | Reedley 102/65/106/67/107 | Dinuba 100/63/105/66/106 |
| Porterville 103/66/ 106/68/108 | Lindsay 102/63/106/68/107 | Delano 103/69/106/72/108 |
| Bakersfield 103/75/107/78/108 | Taft 101/76/105/78/106 | Arvin 103/71/106/75/108 |
| Lamont 103/70/ 107/70/107 | Pixley 102/68/106/70/107 | Tulare 100/63/105/66/106 |
| Woodlake 100/62/104/66/106 | Hanford 103/68/106/70/107 | Orosi 100/63/105/65/1060 |
Seven Day Forecast:
| Monday
Mostly clear 67/106 |
Tuesday
Mostly clear 63/102 |
Wednesday
Mostly clear 62/101 |
Thursday
Mostly clear 62/99 |
Friday
Mostly clear 63/99 |
Two Week Outlook: July 17 through July 23: This model shows a trough of low pressure over the Pacific Northwest while upper level high pressure remains over the Desert Southwest. This pattern allows near average temperatures for mid July with typical dry conditions continuing.
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 afternoons and evenings will be generally out of the northwest at 5 to 12 MPH with locally stronger gusts through Monday. winds during the night and morning hours will be generally variable to around 7 MPH with periods of near calm conditions.
Rain Discussion: Expect dry conditions for the next 7 to 10 days.
Afternoon Dew Points Today: Mid to upper 40s. Kern: Mid to upper 40s. Humidity values ranging from 15%/65% at Visalia. Bakersfield 15%/45%
Actual Humidity range July 9, 2020: Delano, 78%/20%, Porterville, 74%/17%
Percentage of Sunshine Today/Tomorrow: Visalia: Today: 90%, tomorrow 90%. Bakersfield: Today: 90% Tomorrow: 90%
ET Rates Over the Past Seven Days: Stratford 2.22, Parlier 2.07, Blackwell Corner 2.16, Arvin 2.27, Orange Cove 2.27, Porterville 2.07, Delano 2.02. Courtesy University of California *=estimate, NA=not available.
Seven Day Soil Temperatures: Stratford 75, Parlier 78, Blackwell NA, Arvin, 79, Orange Cove 82, Porterville 81, Delano 76
Record Temperatures: 112/54. Average Temperatures: 98/64
Cooling Degree Days this Season: 771 +171
Courtesy of the NWS
Average temperature for July so far: 78.4 +0.1
Precipitation: Seasonal total for Fresno/average + or 7.63 or -3.68. Month to Date: .00 -.00
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: 5:49, Sunset: 8:19 pm. Hours of Daylight: 14:31
Yesterday’s Weather:
MCE : Merced 153 : DH1700 / 98 / 62 / 0.00 /
MAE : Madera 253 : DH1700 / 98 / 60 / 0.00 /
FAT : Fresno Airport 333 : DH1700 / 100 / 71 / 0.00 /
HJO : Hanford Airport 242 : DH1700 / 100 / 59 / 0.00 /
NLC : Lemoore Naval AS 234 : DH1700 / 100 / 61 / 0.00 /
BFL : Bakersfield Airport 496 : DH1600 / 102 / 71 / 0.00 /
VIS : Visalia Airport 292 : DH1700 / 98 / 60 / 0.00 /
PTV : Porterville Airport 442 : DH1700 / 100 / 60 / 0.00 /
LOSC1 : Los Banos 120 : DH1600 / 96 / 63 / 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 11.74 12.02
FRESNO 0.00 7.63 67 11.85 105 11.31 11.50
HANFORD 0.00 6.62 67 9.50 96 9.90 10.10
BAKERSFIELD 0.00 7.20 113 7.80 123 6.35 6.47
BISHOP 0.00 2.25 48 8.47 179 4.73 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 T 10.61 77 15.68 114 13.77 13.95
Next report: July 11/morning