June 18, 2019
Summary: A benign upper level low is located just west of Los Angeles this morning. High pressure in the upper atmosphere is centered several hundred miles off the northern California coast with a ridge extending inland through Oregon and northern California. The combination of these two features has the winds aloft out of the northeast. Thunderstorms over the Sierra Nevada will be more isolated this afternoon, but even so, tops of these storms may make it out over the San Joaquin Valley from midafternoon through the evening hours before dissipating.
The proximity of the high off the northern California coast is close enough to drive temperatures well above average through Wednesday. Triple digits will be commonplace both today and tomorrow before backing off a bit Thursday. By Thursday night and Friday, a low will develop over the Pacific Northwest and northern Rockies with a trough into the Great Basin. This will drive the high further off shore, creating a north/northwest flow aloft and pumping cooler air in aloft. Also, the weak off shore flow currently underway will turn onshore, flooding the valley with marine air Thursday night and Friday, causing temperatures to tumble to below average. Only marginal warming will occur over the weekend as a broad area of low pressure will remain over the interior west.
Models also show an even stronger trough over the western states by the middle of next week. This should lead to several days of below average temperatures. The flow aloft for most of next week will be out of the west/northwest which is a dry flow this time of year.
Forecast: Mostly clear skies through Saturday. Continued to be mostly clear Saturday night through Tuesday.
Short Term:
| Madera 101/65/102/66/95 | Reedley 102/66/102/67/98 | Dinuba 101/64/102/65/97 | |
| Porterville 102/65/102/66/98 | Lindsay 101/63/102/64/97 | Delano 101/68/108/69/98 | |
| Bakersfield 103/74/103/73/99 | Taft 103/76/103/74/98 | Arvin 103/70/102/69/99 | |
| Lamont 102/70/102/71/99 | Pixley 101/65/102/66/98 | Tulare 100/63/101/64/97 | |
| Woodlake 101/64/102/65/97 | Hanford 101/67/102/67/97 | Orosi 101/63/102/64/98 | |
Seven Day Forecast:
| Friday
Mostly clear 59/89 |
Saturday
Mostly clear 58/93 |
Sunday
Mostly clear 61/95 |
Monday
Mostly clear 60/94 |
Tuesday
Mostly clear 57/89 |
Two Week Outlook: June 24 through June 30: This model has flip flopped a bit and indicates a trough of low pressure will be the more dominant feature during this time frame. If this happens, a welcome cooling trend will occur with temperatures near to possibly marginally below average with the usual dry conditions continuing.
June: The first month of meteorological summer indicates temperatures will only be marginally above average over northern and central California. In other words, patterns for early summer should be fairly typical. The usual generally dry conditions will prevail.
June, July, August: If this model has any grip at all on the pattern for summer of 2019, it is the fact that it will be a hot one, even hotter than usual. As a more persistent ridge remains over the west and lower pressure over the middle of the country the usual generally dry conditions will prevail.
Winds: Winds through Wednesday will be at or less than 15 MPH and generally out of the northwest afternoons and evenings. During the night through midmorning hours, winds will be generally less than 10 MPH with periods of near calm conditions. Winds Thursday through Friday will pick up out of the west to northwest at 10 to 20 MPH with stronger gusts, mainly along the west side.
Rain: Expect dry conditions for the next 7 to 10 days.
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Afternoon Dew Points Today: Low to mid 60s. Kern: Upper 50s to the lower 60s. Humidity values ranging from 30%/80% at Hanford. Bakersfield 25%/65%
Actual Humidity June 17, 2019: Delano, 78%/37% Porterville, 70%/26%
Percentage of Sunshine Today/Tomorrow: Visalia: Today: 90%, tomorrow 100% Bakersfield: Today: 100% Tomorrow: 100%
ET Rates Over the Past Seven Days: Stratford 2.00, Parlier 1.94, Blackwell 2.25, Arvin 2.21, Orange Cove 2.06, Porterville 2.00, Delano 1.96. Courtesy University of California *=estimate, NA=not available.
Seven Day Soil Temperatures: Stratford 74, Parlier 76, Blackwell 86, Lindcove, 76, Arvin, 78, Orange Cove 78, Porterville 84, Delano 82
Record Temperatures: 107/50. Average Temperatures: 93/61
Cooling Degree Days this Season: 442 +109
Courtesy of the NWS
Average temperature for June so far: 79.3 +6.0
Precipitation: Seasonal total/average/above or below average:
Since Oct 1, 2018 Fresno: 11.85 season. or +.58. Month to Date: .00 -.17
Since Oct 1, 2018, Bakersfield: 7.80, or +1.47. Month to Date: .23 +.17
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: 5:40 am Sunset: 8:21 pm. Hours of Daylight: 14:41
Yesterday’s Weather:
MAE : Madera 253 : DH1700 / 95 / 60 / 0.00 /
FAT : Fresno Airport 333 : DH1700 / 96 / 69 / 0.00 /
HJO : Hanford Airport 242 : DH1700 / 96 / 65 / 0.00 /
NLC : Lemoore Naval AS 234 : DH1700 / 97 / 61 / 0.00 /
BFL : Bakersfield Airport 496 : DHM / 98 / 71 / 0.00 /
VIS : Visalia Airport 292 : DH1700 / 96 / 64 / 0.00 /
ATEC1 : Avenal 787 : DH1655 / 95 / 65 / 0.00 /
PTV : Porterville Airport 442 : DH1700 / 98 / 64 / 0.00 /
TFTC1 : Taft 759 : DH1652 / 95 / 70 / 0.00 /
LOSC1 : Los Banos 120 : DH1600 / 95 / 59 / 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 13.75 14.06
MODESTO 0.00 13.35 104 8.17 64 12.80 13.11
MERCED 0.00 13.27 109 7.06 58 12.19 12.50
MADERA 0.00 11.42 98 7.22 62 11.71 12.02
FRESNO 0.00 11.85 105 6.73 60 11.27 11.50
HANFORD 0.00 9.50 96 4.70 48 9.88 10.10
BAKERSFIELD 0.00 7.80 123 3.95 62 6.33 6.47
BISHOP 0.00 8.45 183 1.49 32 4.62 5.18
SALINAS T 13.80 109 7.15 57 12.61 12.83
PASO ROBLES 0.00 14.88 120 9.62 77 12.44 12.78
SANTA MARIA 0.00 15.68 114 6.01 44 13.75 13.95
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Next report: Wednesday, June 19