September 26, 2017
Summary: The low pressure system that resulted in mild conditions of late has now moved into the northern plains states. Meanwhile, upper level high pressure is slowly building into the Pacific Northwest and northern California. This keeps the northerly flow above central California going. Latest soundings above the valley have winds out of the north at 43 MPH up at 18,000 feet. The northerly flow will continue through mid week then that off shore flow will continue through Wednesday. From Thursday and into the weekend, high pressure aloft will build in from the west. Look for temperatures in the low to mid 90s Wednesday through Friday. An upper low will then develop over southern California and Arizona, weakening the high and turning the surface winds on shore. This will result in temperatures lowering to near to possibly below average Sunday and Monday. By Monday night, a low pressure system will begin to move into the Pacific Northwest. After that, models are in a state of conflict. One model shows the low moving into the Rockies while a second model shows it moving into the Great Basin. A third shows a cold front moving through central California with a chance of showers. In any case, conditions early to mid week next week will be mild with possible below average temperatures.
Forecast: Mostly clear skies through Friday. Mostly clear and warmer Friday night through Tuesday.
Short Term:
| Madera 88/53/91/55/92 | Reedley 88/53/91/56/91 | Dinuba 88/54/91/56/91 | |
| Porterville 89/54/92/55/92 | Lindsay 88/53/91/55/91 | Delano 90/58/92/58/92 | |
| Bakersfield 90/61/92/64/93 | Arvin 91/59/92/62/93 | Taft 89/64/92/65/92 | |
| Lamont 91/58/92/62/93 | Pixley 89/56/92/56/92 | Tulare 88/53/91/56/91 | |
| Woodlake 88/54/92/56/92 | Hanford 88/55/91/56/92 | Orosi 89/53/92/55/92 | |
Seven Day Forecast:
| Friday
Mostly clear 57/91 |
Saturday
Mostly clear 55/87 |
Sunday
Mostly clear 52/83 |
Monday
Mostly clear 51/81 |
Tuesday
Mostly clear 52/83 |
Two Week Outlook: October 2 through October 8: Models indicate that the storm track will move into the Pacific Northwest, just clipping northern California during this time frame. This should lower temperatures enough for seasonal to marginally above average levels with very little, if any, chance of precipitation.
October: The month of October, according to the latest models, will have generally or at least marginally above average temperatures as high pressure remains over the Desert Southwest. The Pacific Northwest will have above average precipitation and above average temperatures. Central California will be squeezed between these two systems, so it appears we’ll have an equal chance of rain for the month, which shouldn’t range too far from average.
October, November, December: Looking out to October through December, models show marginally above average temperatures for central and southern California. Models also indicate precipitation will be near average with the main storm track moving through the Pacific Northwest.
Winds: Winds will be generally less than 10 MPH through Friday with periods of near calm conditions, especially during the night and morning hours.
Rain: Expect dry conditions indefinitely
Afternoon Dew Points Today:. Visalia, Low to mid 40s. Bakersfield, Upper 30s to the mid 40s.
Relative Humidity Forecast: Hanford, 15%/70% Bakersfield, 15%/55%
Actual Humidity September 24, 2017: Delano, 91%/19%, Porterville, 92%/16%
Percentage of Sunshine Today/Tomorrow: Visalia: Today 100% tomorrow 100%, Bakersfield: Today 100% tomorrow 100%.
ET Rates Over the Past Seven Days September 24, 2017: Stratford 1.37, Parlier 1.14, Blackwell 1.26, Lindcove 1.12, Arvin 1.19, Orange Cove 1.29, Porterville 1.05, Delano 1.19., Madera Two 1.11 Courtesy University of California *=estimate, NA=not available.
Seven Day Soil Temperatures: Stratford 70, Parlier 71, Blackwell 74, Lindcove 73, Arvin 81, Orange Cove 73, Porterville 77, Delano 73, Madera Two 76
Mean Temperatures for September Month So Far: 76.3 +2.1
Record Temperatures: 100/43. Average Temperatures: 88/57
Cooling Degree Days This Season: 2102, +549 Courtesy of the NWS
Precipitation: Seasonal total/average/above or below average:
Since September 24, 2017, Fresno: 17.36 season. or +5.593. Month to Date: .16
Since September 24, 2017, Bakersfield: 8.34, or +1.90, Month to Date: ..51, Water year season is from October 1st through September.
Chilling Hours November 1st Through February 28: Orange Cove, Parlier, Arvin, Shafter, , Stratford, Madera two, Alpaugh, Delano, Lindcove, Porterville, Hours at 45 or below 45.
Sunrise: 6:50 am Sunset: 6:49 Hours of Daylight: 12:03
Yesterday’s Weather
AT : Fresno Airport 333 : DH1700 / 84 / 55 / 0.00 /
HJO : Hanford Airport 242 : DH1700 / 86 / 47 / 0.00 /
NLC : Lemoore Naval AS 234 : DH1700 / 89 / 49 / 0.00 /
BFL : Bakersfield Airport 496 : DH1700 / 87 / 58 / 0.00 /
VIS : Visalia Airport 292 : DH1700 / 84 / 50 / 0.00 /
ATEC1 : Avenal 787 : DH1652 / 85 / 51 / 0.00 /
PTV : Porterville Airport 442 : DH1700 / 86 / 52 / 0.00 /
TFTC1 : Taft 759 : DH1654 / 87 / 59 / 0.00 /
LOSC1 : Los Banos 120 : DH1600 / 84 / 52 / 0.00 /
Rainfall:
STOCKTON 0.00 21.79 156 16.69 119 13.97 14.06
MODESTO 0.00 16.93 130 15.61 120 13.02 13.11
MERCED 0.00 16.05 129 14.66 118 12.43 12.50
MADERA 0.00 14.26 119 12.96 108 11.96 12.02
FRESNO 0.00 17.36 152 14.29 125 11.44 11.50
HANFORD 0.00 11.21 112 8.26 82 10.05 10.10
BAKERSFIELD 0.00 8.34 129 5.43 84 6.45 6.47
BISHOP 0.00 9.18 179 3.88 76 5.12 5.18
SALINAS 0.00 16.49 129 13.47 105 12.77 12.83
PASO ROBLES 0.00 16.17 127 8.06 63 12.70 12.78
Next Report: Wednesday, September 27