September 12, 2020
Summary: Visibilities this morning from Visalia south are running about 6 miles. Further north, the visibility at Fresno was 4 miles and at Madera just a mile and a half. The smoke over central California continues to play havoc with temperature forecasting. High temperatures the past few days have been anywhere from 7 to 12 degrees below model guidance. Also, ET rates have dropped well below average for mid September. The winds aloft are very weak but are generally out of the northeast, continuing to send copious amounts of smoke over the valley and at ground level.
It appears help is on the way. By Monday afternoon, a trough of low pressure will be approaching the Oregon/northwest California coast. The counterclockwise circulation around the low will turn the winds aloft out of the southwest, meaning the bulk of the smoke will move into Nevada. Along with improved air quality next week will be warmer temperatures, at least through Wednesday. As the trough moves through the Pacific Northwest and northern California Thursday and Friday, marine air will spread inland, moving temperatures down again to at least near average if not marginally below. The southwesterly flow will also allow very dry conditions to continue through at least next weekend.
Forecast: Mostly clear but hazy through Sunday. Mostly clear Monday through Saturday.
Short Term:
| Madera 82/54/85/58/94 | Reedley 83/55/85/58/93 | Dinuba 82/54/85/57/92 |
| Porterville 84/55/85/58/95 | Lindsay 84/55/86/59/95 | Delano 84/58/86/60/95 |
| Bakersfield 83/67/84/68/95 | Taft 84/70/86/70/95 | Arvin 84/59/87/62/96 |
| Lamont 83/61/85/65/96 | Pixley 84/57/85/59/95 | Tulare 83/55/85/58/93 |
| Woodlake 83/54/85/57/92 | Hanford 83/57/85/59/94 | Orosi 83/53/85/58/92 |
Seven Day Forecast:
| Tuesday
Mostly clear 61/96 |
Wednesday
Mostly clear 60/94 |
Thursday
Mostly clear 57/92 |
Friday
Mostly clear 55/88 |
Saturday
Mostly clear 54/88 |
Two Week Outlook: September 19 through September 25: This model indicates an amplified pattern with a big high over the western U.S. and a cool trough of low pressure east of the Rockies. This regime will keep temperatures above average with dry conditions.
September: This model is indicating basically the western half of the United States will have above average temperatures, continuing the trend of the summer season into the early fall. This model shows near average precipitation, which is minimal at best anyway.
September, October, November: This model always indicates above average temperatures for the western U.S. and this time around is no exception. As we head into the autumn season this model is indicating there will be equal chances of above or below precipitation.
Winds Discussion: Winds will be generally at or less than 12 MPH during the afternoons and variable. During the night and morning hours, winds will be generally at or less than 6 MPH with periods of near calm conditions.
Rain Discussion: Expect dry conditions for the next 7 to 10 days.
Afternoon Dew Points Today: Low to mid 50s.. Kern: Mid to upper 40s.
Actual Humidity Range September 11, 2020: Delano, 99%/37%, Porterville, 93%/35%
Percentage of Sunshine Today/Tomorrow: Visalia: Today: 100%, tomorrow 100%. Bakersfield: Today: 100% Tomorrow: 100%
ET Rates Over the Past Seven Days: Stratford 1.34, Parlier 1.10, Blackwell Corner 1.26, Arvin 1.58, Orange Cove 1.18, Porterville 1.10, Delano 1.21. Courtesy University of California *=estimate, NA=not available.
Seven Day Soil Temperatures: Stratford 75, Parlier 79, Blackwell NA, Arvin, 80, Orange Cove NA, Porterville 74, Delano 75
Record Temperatures: 105/48. Average Temperatures: 92/59
Cooling Degree Days This Season: 1895 +448
Courtesy of the NWS
Average Temperature for September So Far: 79.7 +4.1
Precipitation: Seasonal total for Fresno/average + or -. 7.63 or -3.73. Month to Date: .T -.03
Since Oct 1, 2019, Fresno, 7.63 -3.69. 7.20, or +.84. Bakersfield, 7.20 +.79. Month to Date: .T -.02
Water year season is from October 1st through September.
Chilling Hours November 1st through February 28: Orange Cove, Parlier, Arvin, Shafter, Stratford, Delano, Lindcove, Porterville
Hours at 45 or below 45.
Sunrise: 6:40 Sunset: 7:08 pm Hours of Daylight: 12:31
Yesterday’s Weather
MCE : Merced 153 : DH1700 / 86 / 57 / 0.00 /
MAE : Madera 253 : DH1700 / 82 / 54 / 0.00 /
FAT : Fresno Airport 333 : DH1700 / 81 / 62 / 0.00 /
HJO : Hanford Airport 242 : DH1700 / 83 / 55 / 0.00 /
NLC : Lemoore Naval AS 234 : DH1700 / 84 / 54 / 0.00 /
BFL : Bakersfield Airport 496 : DH1700 / 80 / 60 / 0.00 /
VIS : Visalia Airport 292 : DH1700 / 82 / 55 / 0.00 /
ATEC1 : Avenal 787 : DHM / M / M / M /
PTV : Porterville Airport 442 : DH1700 / 83 / 55 / 0.00 /
TFTC1 : Taft 759 : DHM / M / M / M /
LOSC1 : Los Banos 120 : DH1600 / 84 / 59 / 0.00 /
Rainfall: 24hr W.Y. % Last Y. % Ave. Year ave.
STOCKTON 0.00 8.35 60 18.37 133 13.82 14.06
MODESTO 0.00 6.94 54 13.35 104 12.89 13.11
MERCED 0.00 9.54 78 13.27 108 12.28 12.50
MADERA 0.00 6.02 51 11.42 97 11.83 12.02
FRESNO 0.00 7.63 67 11.85 104 11.36 11.50
HANFORD 0.00 6.62 66 9.50 95 9.97 10.10
BAKERSFIELD 0.00 7.20 112 7.82 122 6.41 6.47
BISHOP 0.00 2.25 45 8.48 169 5.02 5.18
SALINAS 0.00 9.18 72 13.80 109 12.68 12.83
PASO ROBLES 0.00 11.47 91 14.88 118 12.58 12.78
SANTA MARIA 0.00 10.66 77 15.68 113 13.84 13.95
Next report: September 14/morning