July 23, 2018
Summary: Upper level high pressure has been centered over Texas and is now moving westward into New Mexico. This will have little impact on valley weather and temperatures today, but the latest heat wave will begin Tuesday and continue through Friday. The high itself, by midweek, will be centered over Arizona and southeast California. This will send hottest valley locations to around 108, possibly as high as 110, with most valley locations Tuesday through Thursday between 104 and 107. The clockwise flow around the high currently has the winds aloft out of the southwest. This will pretty much be the case for the remainder of the week. The high over Arizona will suppress monsoonal moisture into mainly New Mexico, so expect generally clear skies this week with only a slight chance of isolated thunderstorms over the crest of the Sierra Nevada.
Most model information this morning shows the high shifting further east over the weekend and marginally reducing pressures over California. This will result in temperatures coming down a bit, but my feeling is readings will still remain in at least the lower 100s.
The two week model this morning is indicating a trough will be over the eastern half of the country with high pressure over the west, continuing to favor above average temperatures and possibly the return of the monsoon, but we’ll handle that down the road.
Forecast: Mostly clear skies and hot through Friday. Mostly clear and not as hot Saturday through Monday.
Short Term:
| Madera 102/71/105/73/107 | Reedley 102/72/105/73/106 | Dinuba 101/70/104/72/105 | |
| Porterville 103/71/106/74/108 | Lindsay 102/70/105/73/107 | Delano 102/74/105/77/107 | |
| Bakersfield 102/77/106/80/108 | Arvin 102/73/105/77/108 | Taft 102/79/105/80/107 | |
| Lamont 103/75/106/77/108 | Pixley 101/71/105/74/107 | Tulare 101/70/104/73/106 | |
| Woodlake 101/71/105/74/106 | Hanford 102/72/106/73/107 | Orosi 101/70/105/73/106 | |
Seven Day Forecast:
| Thursday
Mostly clear 74/106 |
Friday
Mostly clear 72/104 |
Saturday
Mostly clear 71/102 |
Sunday
Mostly clear 70/101 |
Monday
Mostly clear 69/103 |
Two Week Outlook: July 30 through August 5: This model continues to point to a hot pattern over California and much of the interior and southwest United States. Upper level high pressure will be mainly over the southwest with monsoon moisture possibly working into southern California during this time frame. For now, though, it looks like generally clear skies will remain over central California.
July: This model is indicating high pressure over the Desert Southwest will be stronger than usual. A fairly active monsoon is also indicated for periods of thunderstorms over the Sierra and hotter than average temperatures over the valley floor.
July, August, September: Like the 30 day outlook, this model is indicating we’ll have a hot summer, moving into the early fall. Above average precipitation is possible over southern California and the Sierra Nevada due to an active monsoon season with temperatures remaining generally above average for the next three months.
Winds: Winds will be generally at or less than 15 MPH through Thursday and mainly out of the northwest afternoons and evenings.
Rain: Expect dry conditions for the foreseeable future.
Afternoon Dew Points Today: Upper 50s to the lower 60s. Kern: Upper 50s to the lower 60s.
Humidity: Visalia: 25%/70% Bakersfield: 25%/60%
Actual Humidity July 22, 2018: Delano, 82%/36%, Porterville, 78%/26%
Percentage of Sunshine Today/Tomorrow: Visalia: Today: 100% tomorrow 100% Bakersfield: Today: 100% Tomorrow: 100%
ET Rates Over the Past Seven Days: Stratford 2.22, Parlier 2.01, Blackwell 2.40, Lindcove 1.94, Arvin 2.22, Orange Cove 2.22, Porterville 1.80, Delano 1.94, Madera Two NA. Courtesy University of California *=estimate, NA=not available.
Seven Day Soil Temperatures: Stratford 77, Parlier 83, Blackwell 84, Lindcove, 80, Arvin, NA, Orange Cove 81, Porterville 85, Delano 84, Madera Two, NA
Record Temperatures: 113/55. Average Temperatures: 99/67
Cooling Degree Days this Season: 1060 +271. Courtesy of the NWS
Average temperatures for July so far, 84.9 +5.8
Precipitation: Seasonal total/average/above or below average:
Since Oct 1, 2017 Fresno: 6.73 season. or -4.59. Month to Date: .00
Since Oct 1, 2017, Bakersfield: 3.93, or -2.40. Month to Date: .00
Water year season is from October 1st through September.
Chilling Hours November 1st through February 28: Orange Cove, Parlier, Arvin, Shafter, Stratford, Madera two, Lindcove, Porterville, Hours at 45 or below 45.
Sunrise: 5:558 am Sunset: 8:12 pm. Hours of Daylight: 14:15
Yesterday’s Weather:
MAE : Madera 253 : DH1700 / 100 / 70 / 0.00 /
FAT : Fresno Airport 333 : DH1700 / 101 / 74 / 0.00 /
HJO : Hanford Airport 242 : DH1700 / 100 / 70 / 0.00 /
NLC : Lemoore Naval AS 234 : DH1700 / 100 / 70 / 0.00 /
BFL : Bakersfield Airport 496 : DH1700 / 100 / 77 / 0.00 /
VIS : Visalia Airport 292 : DH1700 / 98 / 70 / 0.00 /
ATEC1 : Avenal 787 : DHM / M / M / M /
PTV : Porterville Airport 442 : DH1700 / 99 / 72 / 0.00 /
TFTC1 : Taft 759 : DH1656 / 99 / 78 / 0.00 /
LOSC1 : Los Banos 120 : DH1600 / M / 67 / 0.00 /
Rainfall: Water year Oct 1st through September 30th
Year % Last Y. % Ave. Annual ave.
STOCKTON 0.00 9.22 67 21.78 158 13.76 14.06
MODESTO 0.00 8.17 64 16.93 132 12.83 13.11
MERCED 0.00 7.06 58 16.03 132 12.19 12.50
MADERA 0.00 7.22 61 14.18 121 11.75 12.02
FRESNO 0.00 6.73 59 17.20 152 11.32 11.50
HANFORD 0.00 4.70 47 11.05 112 9.91 10.10
BAKERSFIELD 0.00 3.95 62 7.82 123 6.35 6.47
BISHOP T 3.01 63 9.16 191 4.80 5.18
SALINAS T 7.16 57 16.45 130 12.63 12.83
PASO ROBLES 0.00 9.62 77 16.14 130 12.45 12.78
SANTA MARIA 0.00 6.01 44 18.44 134 13.78 13.95
Next report: July 24