July 22, 2019
Summary: Today begins a string of triple digit days. Expect this to last through the end of the week. A classic summertime pattern continues to develop as strong upper level high pressure centers over the Four Corners region of the Desert Southwest. The high will continue to expand westward and northward, eventually encompassing most of the western U.S. and all the way to the Canadian Rockies. California is on the western side of the high. The clockwise flow around this dome of high pressure has already turned the winds aloft out of the south.
A considerable amount of monsoonal moisture has worked its way into southern California and will move into central California today and tonight. In and out mid and high level clouds will be visible for much of the week over the valley floor along with progressively higher humidity as the week wears on.
Daytime heating will be the triggering mechanism for the chance of isolated to possibly scattered thunderstorms over the Sierra Nevada afternoons and evenings. Hot conditions will prevail through the work week with readings generally ranging between 103 and 107.
Models continue to show the center of the high moving over western Arizona and southern California during the weekend. If this happens, it would suppress the monsoonal moisture back into northwest Mexico with possibly even hotter temperatures Saturday through Monday.
Models for the medium term are indicating the southwestern high will continue well into next week over the western states while a trough of low pressure continues east of the Rockies.
Forecast: Mostly clear to occasionally partly cloudy through Friday with hot afternoons and evenings and warm nights. Mostly clear and hot Saturday through Monday.
Short Term:
| Madera 102/68/103/70/104 | Reedley 102/68/103/70/104 | Dinuba 101/67/102/69/103 |
| Porterville 103/70/103/71/104 | Lindsay 102/68/103/70/104 | Delano 103/72/103/73/105 |
| Bakersfield 104/77/104/79/105 | Taft 103/80/104/82/105 | Arvin 104/72/106/74/106 |
| Lamont 103/73/103/74/106 | Pixley 102/68/103/70/104` | Tulare 101/67/103/71/103 |
| Woodlake 101/67/103/70/104 | Hanford 102/69/103/72/104 | Orosi 101/67/103/69/104 |
Seven Day Forecast:
| Thursday
Partly cloudy 72/105 |
Friday
Partly cloudy 70/105 |
Saturday
Mostly clear 72/107 |
Sunday
Mostly clear 72/106 |
Monday
Mostly clear 72/107 |
Two Week Outlook: July 29 through August 4: This model is showing a fairly amplified pattern for the time of year with a trough east of the Rockies and a big upper high over the western states. This pattern is conducive for above average temperatures. The monsoon could very well affect the Sierra Nevada and southern California, but by and large, the valley will remain dry.
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 in the 5 to 12 MPH range and mainly out of the northwest afternoons and evenings. Periods of near calm conditions can be expected nights and mornings through Thursday.
Rain: With monsoonal moisture moving in from the south through Friday, there will be periods of mid and high level clouds over the valley floor. A few sprinkles could occur, especially Tuesday through Thursday, but measurable rain is very unlikely with the exception of the higher elevations of the Sierra Nevada.
___________________________________________________________________________________________
Afternoon Dew Points Today: Mid to upper 50s. Kern: Low to mid 50s. Humidity values ranging from 25%/60% at Hanford. Bakersfield 20%/50%
Actual Humidity range July 21, 2019: Delano, 78%/33% Porterville, 88%/25%
Percentage of Sunshine Today/Tomorrow: Visalia: Today: 80%, tomorrow 60% Bakersfield: Today: 70% Tomorrow: 50%
ET Rates Over the Past Seven Days: Stratford 1.92, Parlier 1.79, Blackwell 2.34, Arvin 2.14, Orange Cove 2.16, Porterville 1.99, Delano 1.98. Courtesy University of California *=estimate, NA=not available.
Seven Day Soil Temperatures: Stratford 77, Parlier 80, Blackwell 88, Lindcove, 77, Arvin, 80, Orange Cove 80, Porterville 90, Delano 84
Record Temperatures: 112/56. Average Temperatures: 99/66
Cooling Degree Days this Season: 929 +159
Courtesy of the NWS
Average temperature for July so far: 79.7 +0.7
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: 5:57 am Sunset: 8:13 pm. Hours of Daylight: 14:17
Yesterday’s Weather:
MAE : Madera 253 : DH1700 / 97 / 61 / 0.00 /
FAT : Fresno Airport 333 : DH1700 / 98 / 69 / 0.00 /
HJO : Hanford Airport 242 : DH1700 / 98 / 67 / 0.00 /
NLC : Lemoore Naval AS 234 : DH1700 / 98 / 64 / 0.00 /
BFL : Bakersfield Airport 496 : DHM / 99 / 71 / 0.00 /
VIS : Visalia Airport 292 : DH1700 / 97 / 65 / 0.00 /
PTV : Porterville Airport 442 : DH1700 / 98 / 65 / 0.00 /
TFTC1 : Taft 759 : DH1635 / 98 / 74 / 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 11.75 12.02
FRESNO 0.00 11.85 105 6.73 59 11.32 11.50
HANFORD 0.00 9.50 96 4.70 47 9.91 10.10
BAKERSFIELD 0.00 7.80 123 3.95 62 6.35 6.47
BISHOP 0.00 8.47 177 2.95 62 4.78 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 13.78 13.95
Next report: Tuesday, July 23