August 30, 2018
Summary: Most locations yesterday were at or slightly below the 90 degree mark. even Bakersfield topped out at only 89. North of Fresno County, most locations were only in the low to mid 80s. the marine layer along the coast this morning is still more than 3,000 feet deep and will continue to result in fairly mild temperatures as we begin to wrap up the summer season. Pacheco Pass was reporting winds out of the west sustained at 20 MPH, indicating the valley’s air conditioning vent is still open.
Currently, upper level high pressure is centered over Baja and extends eastward across the U.S. clear to the mid Atlantic states. A weak trough of low pressure is over the Pacific Northwest and northern California, maintaining an off and on again onshore flow. Beginning Saturday, the high over northwest Mexico will move off shore then expand northward over the eastern Pacific and California. Temperatures will rise a bit each day as we head through the weekend and on through the middle of next week. For now, no excessively hot weather is anticipated, but temperatures in the warmest locations should be nearing the century mark by Monday.
With the center of the high off shore, a dry northwesterly flow will develop next week, cutting off any chance of monsoonal moisture working its way into the region. Currently, however, we do have some mid and high level clouds embedded within a west/southwest flow aloft. They may be dense enough at times to dim the sunlight. However, they don’t pose any threat.
In the medium term, after midweek a weak trough of low pressure shows up on models over the Pacific Northwest which will marginally lower pressures aloft for a minor cooling trend as we head towards next weekend. Outside of that, a very bland weather pattern will continue.
Forecast: Mostly clear to occasionally partly cloudy through Friday. Mostly clear Friday night and on through Thursday of next week with occasional high clouds.
Short Term:
| Madera 88/56/89/58/93 | Reedley 89/57/90/58/93 | Dinuba 88/56/89/58/92 | |
| Porterville 89/57/90/59/92 | Lindsay 90/57/91/59/92 | Delano 90/60/91/61/93 | |
| Bakersfield 89/64/90/65/93 | Arvin 90/61/90/63/93 | Taft 90/67/91/68/94 | |
| Lamont 89/62/91/63/93 | Pixley 89/59/91/60/92 | Tulare 88/57/89/59/91 | |
| Woodlake 90/56/91/58/92 | Hanford 89/56/91/59/93 | Orosi 89/57/91/59/92 | |
Seven Day Forecast:
| Sunday
Mostly clear 62/98 |
Monday
Mostly clear 64/100 |
Tuesday
Mostly clear 64/100 |
Wednesday
Mostly clear 65/99 |
Thursday
Mostly clear 63/96 |
Two Week Outlook: September 5 through September 11: A weak trough of low pressure will be over and off the Pacific coast during this time frame while upper level high pressure covers the Desert Southwest and possibly southern California. This pattern would be conducive for marginally above average temperatures and for now it appears the monsoon will be far enough to the east to keep precipitation out of the forecast.
September: This model indicates there will be a higher than active monsoon over the Desert Southwest and possibly central and southern California. This typically does not affect the valley floor other than cloud cover, but could result in a larger number of days of thunderstorms over the Sierra Nevada and possibly even the Kern County mountains. With generally high pressure over the southwest, temperatures will likely be somewhat above seasonal average.
September, October, November: The first part of this time frame will see a more active than usual monsoon in place for above average rain over the Sierra Nevada and possibly the mountains and deserts of southern California. October and November’s conditions aren’t as easy to determine. At this time we’ll call for generally average values for both rain and temperatures.
Winds: Winds will be mainly out of the west to northwest at 5 to 12 MPH at times through Sunday with stronger gusts possible.
Rain: Expect dry conditions indefinitely.
Afternoon Dew Points Today: Low to mid 50s. Kern: Upper 40s to the lower 50s.
Humidity: Visalia: 30%/85% Bakersfield: 25%/70%
Actual Humidity August 29, 2018: Delano, 81%/38%, Porterville, 92%/34%
Percentage of Sunshine Today/Tomorrow: Visalia: Today: 70% tomorrow 70% Bakersfield: Today: 70% Tomorrow: 80%
ET Rates Over the Past Seven Days: Stratford 1.65, Parlier 1.57, Blackwell 1.91, Lindcove 1.55, Arvin 1.86, Orange Cove 1.73, Porterville 1.43, Delano 1.57, Courtesy University of California *=estimate, NA=not available.
Seven Day Soil Temperatures: Stratford 74, Parlier 78, Blackwell 86, Lindcove, 77, Arvin, 77, Orange Cove 78, Porterville 83, Delano 76,
Record Temperatures: 109/49. Average Temperatures: 95/63
Cooling Degree Days this Season: 1722 +415
Courtesy of the NWS
Average temperatures for August so far: 81.1 +2.7
Precipitation: Seasonal total/average/above or below average:
Since Oct 1, 2017 Fresno: 6.73 season. or -4.60. Month to Date: .00
Since Oct 1, 2017, Bakersfield: 3.93, or -2.43. 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: 6:29 am Sunset: 7:28 pm. Hours of Daylight: 13:00
Yesterday’s Weather:
MAE : Madera 253 : DH1700 / 91 / 60 / 0.00 /
FAT : Fresno Airport 333 : DH1700 / 91 / 62 / 0.00 /
HJO : Hanford Airport 242 : DH1700 / 90 / 62 / 0.00 /
NLC : Lemoore Naval AS 234 : DH1700 / 90 / 60 / 0.00 /
BFL : Bakersfield Airport 496 : DH1700 / 89 / 65 / 0.00 /
VIS : Visalia Airport 292 : DH1700 / 88 / 60 / 0.00 /
PTV : Porterville Airport 442 : DH1700 / 89 / 59 / 0.00 /
TFTC1 : Taft 759 : DH1648 / 93 / 67 / 0.00 /
LOSC1 : Los Banos 120 : DH1600 / 85 / 57 / 0.00 /
Rainfall: Water year Oct 1st through September 30th
Year % Last Y. % Ave. Annual ave.
STOCKTON 0.00 9.22 67 21.79 158 13.77 14.06
MODESTO 0.00 8.17 64 16.93 132 12.85 13.11
MERCED 0.00 7.06 58 16.03 131 12.20 12.50
MADERA 0.00 7.22 61 14.18 121 11.76 12.02
FRESNO 0.00 6.73 59 17.20 152 11.33 11.50
HANFORD 0.00 4.70 47 11.05 111 9.93 10.10
BAKERSFIELD 0.00 3.95 62 7.82 123 6.38 6.47
BISHOP 0.00 3.02 61 9.18 185 4.97 5.18
SALINAS T 7.16 57 16.45 130 12.66 12.83
PASO ROBLES 0.00 9.62 77 16.14 129 12.55 12.78
SANTA MARIA 0.00 6.01 44 18.44 134 13.81 13.95
Next report: August 31