July 11, 2019
Summary: High pressure at the mid and upper levels of the atmosphere has become ensconced over the Four Corners region of the Desert Southwest. The high is expanding west and northwest, finally returning temperatures to near seasonal averages today with readings moving into triple digits Friday through Monday. For now, it appears Saturday will be the hottest in this series with readings soaring into the 104 to 108 degree range at many locations.
Typically under this pattern, the winds become south to southeast. The clockwise rotation around the high will have winds out of the south Friday and Saturday. Satellite imagery already indicates monsoon moisture has already moved as far west as the California/Arizona border. A limited amount of that moisture will make its way into southern California and possibly up the Sierra Nevada late Friday and Saturday for a slight chance of isolated thunderstorms over the back country.
By Sunday, a weak trough of low pressure will move into the Pacific Northwest, flattening out the high and starting a minor cooling trend. Monday through Wednesday, the marine layer will deepen enough for a shallow intrusion of marine air to move down the valley, lowering temperatures into the mid to upper 90s. some models show a strong high between the 18 and 20 shifting further west which, in theory, would drive temperatures above average once again. We’ll see if this trend continues in the coming days.
Forecast: Mostly clear and warmer through Thursday. Mostly clear and hot Friday through Sunday. Mostly clear and a bit cooler Monday through Thursday.
Short Term:
| Madera 97/63/100/65/105 | Reedley 98/62/100/65/104 | Dinuba 97/62/99/66/103 | |
| Porterville 98/63/101/67/105 | Lindsay 98/61/100/65/105 | Delano 99/64/101/69/106 | |
| Bakersfield 99/73/102/75/107 | Taft 99/75/101/78/107 | Arvin 99/67/101/71/106 | |
| Lamont 98/68/101/71/107 | Pixley 99/64/101/67/106 | Tulare 97/62/99/65/104 | |
| Woodlake 97/62/100/66/105 | Hanford 97/63/100/66/105 | Orosi 97/62/99/66/104 | |
Seven Day Forecast:
| Sunday
Mostly clear 67/102 |
Monday
Mostly clear 65/101 |
Tuesday
Mostly clear 63/97 |
Wednesday
Mostly clear 63/97 |
Thursday
Mostly clear 65/98 |
Two Week Outlook: July 18 through July 24: This model shows the main heat belt from the Rocky Mountains eastward while a weak trough is along the west coast. Since this trough is unimpressive, temperatures will remain near average with no chance of precipitation.
July: July, of course, is typically hot and if this model has any credence, it will be hotter than average. With a dominant Four Corners high and a trough over the middle of the country, usual July dry conditions will prevail.
July, August, September: This model is indicating that the western U.S., including California, will experience above average temperatures overall during the mid to late summer period. Precipitation is expected to be near average, which, of course, is very little and there’s no reason to believe otherwise.
Winds: Winds will be generally out of the northwest afternoons and evenings at 5 to 12 MPH and 3 to 8 MPH during the later night and morning hours.
Rain: Expect dry conditions for the next 7 to 10 days.
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Afternoon Dew Points Today: Low to mid 50s. Kern: Low to mid 50s. Humidity values ranging from 20%/70% at Hanford. Bakersfield 20%/60%
Actual Humidity range July 10, 2019: Delano, 79%/29% Porterville, 86%/22%
Percentage of Sunshine Today/Tomorrow: Visalia: Today: 100%, tomorrow 100% Bakersfield: Today: 100% Tomorrow: 100%
ET Rates Over the Past Seven Days: Stratford 1.93, Parlier 1.91, Blackwell 2.20, Arvin 2.06, Orange Cove 2.11, Porterville 1.94, Delano 1.89. Courtesy University of California *=estimate, NA=not available.
Seven Day Soil Temperatures: Stratford 76, Parlier 78, Blackwell 81, Lindcove, 75, Arvin, 78, Orange Cove 76, Porterville 86, Delano 81
Record Temperatures: 110/52. Average Temperatures: 98/66
Cooling Degree Days this Season: 739 +125
Courtesy of the NWS
Average temperature for July so far: 77.2 -1.3
Precipitation: Seasonal total/average/above or below average:
Since Oct 1, 2018 Fresno: 11.85 season. or +.53. Month to Date: .00 -.01
Since Oct 1, 2018, Bakersfield: 7.80, or +1.45. 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, Lindcove, Porterville,
Hours at 45 or below 45.
Sunrise: 5:50 am Sunset: 8:19 pm. Hours of Daylight: 14:28
Yesterday’s Weather:
VIS : Visalia Airport 292 : DH1700 / 93 / 61 / 0.00 /
ATEC1 : Avenal 787 : DH1700 / 92 / 71 / 0.00 /
PTV : Porterville Airport 442 : DH1700 / 94 / 59 / 0.00 /
TFTC1 : Taft 759 : DH1647 / 93 / 69 / 0.00 /
LOSC1 : Los Banos 120 : DH1600 / 91 / 60 / 0.00 /
Rainfall: Water year Oct 1st through September 30th
24hr Season % L.Y. % Ave. Ave. yearly total
STOCKTON 0.00 18.37 134 9.22 67 13.76 14.06
MODESTO 0.00 13.35 104 8.17 64 12.83 13.11
MERCED 0.00 13.27 109 7.06 58 12.19 12.50
MADERA 0.00 11.42 97 7.22 61 11.74 12.02
FRESNO 0.00 11.85 105 6.73 60 11.31 11.50
HANFORD 0.00 9.50 96 4.70 48 9.89 10.10
BAKERSFIELD 0.00 7.80 123 3.95 62 6.35 6.47
BISHOP 0.00 8.47 180 1.49 32 4.71 5.18
SALINAS 0.00 13.80 109 7.16 57 12.63 12.83
PASO ROBLES 0.00 14.88 120 9.62 77 12.45 12.78
SANTA MARIA 0.00 15.68 114 6.01 44 13.76 13.95
Next report: Friday, July 12