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Forecast

June 23, 2020/report

une 23, 2020

Summary: The center of circulation of a strong ridge of upper level high pressure is southwest of San Diego.  A ridge extends from that high into the Pacific Northwest.  The marine layer is fairly typical for the latter part of June with a depth of 1,900 feet at Monterey.  There is only a minimal amount of modified sea breeze moving through the Delta as winds there are pegged at 17 MPH out of the southwest.  The difference in pressure between San Francisco and Las Vegas is roughly 3.5 millibars, which is not enough to tug that sea breeze inland.  The freezing level has now jumped up to 16,500 feet above Oakland and 17,100 feet above San Diego, indicative of that warm bubble of subsiding air.

 

Triple digits will be a way of life through the work week as persistent upper level  high pressure continues.  Over the weekend, a fairly significant area of low pressure will drop southward from western Canada and into the Pacific Northwest.  Saturday appears to be the transition day between the current heat wave and much cooler weather early next week.  The marine layer will rapidly deepen Friday night, surging inland Saturday.  it’s possible that, by early next week, readings will only top out in the mid 80s.

 

Forecast: Mostly clear skies through Friday.  Mostly clear Friday night through Tuesday.

 

Short Term:                                                                        

Madera 102/67/103/68/103 Reedley 103/67/103/69/104 Dinuba 101/67/102/68/103
Porterville 103/68/103/69/104 Lindsay 102/66/103/68/104 Delano 103/70/103/72/105
Bakersfield 102/77/103/77/105 Taft 102/78/103/78/104 Arvin 103/74/103/76/105
Lamont 102/73/103/73/105 Pixley 102/67/103/70/104 Tulare 101/67/103/69/103
Woodlake 102/68/103/69/104 Hanford 102/69/103/70/104 Orosi 101/67/103/68/103

 

Seven Day Forecast:

Friday

Mostly clear

68/104

Saturday

Mostly clear

65/101

Sunday

Mostly clear

58/87

Monday

Mostly clear

54/85

Tuesday

Mostly clear

58/91

 

Two Week Outlook: June 30 through July 6:  This model indicates a predominant area of low pressure will be in place, especially over the interior west, resulting in a relatively strong on shore flow.  Temperatures will range marginally below average with typical dry conditions continuing.

 

June:  The month of June brings us into the dry season for central California.  The chance of rain during the month will be very low on any given day.  This model indicates we can expect above average temperatures for the month.

 

June, July, August:  What can you say about the summer months in the valley except it will be hot and dry.  Of course, this summer will be no exception.  Precipitation will be near average, which is next to none.  This model indicates the next three months will have above average temperatures, but what else is new?

 

Winds Discussion: Through Friday, winds during the afternoons and evenings will be generally out of the northwest at 5 to 12 MPH.  Winds during the night and early morning hours will be generally at or less than 7 MPH with periods of near calm conditions.  Expect elevated wind conditions to begin Friday night.

 

Rain Discussion: Expect dry conditions for the next 7 to 10 days.

Afternoon Dew Points Today: Upper 50s to the lower 60s. Kern: Mid to upper 50s. Humidity values ranging from 25%/65% at Visalia.  Bakersfield 20%/55%

Actual Humidity range June 22, 2020: Delano, 73%/31%, Porterville, 82%/23%

 

Percentage of Sunshine Today/Tomorrow: Visalia: Today: 90%, tomorrow 90%.  Bakersfield: Today: 90% Tomorrow: 90%

 

ET Rates Over the Past Seven Days: Stratford 2.19, Parlier 2.02, Blackwell Corner 2.13, Arvin 2.23, Orange Cove 2.17, Porterville 2.08, Delano 1.99. Courtesy University of California *=estimate, NA=not available

 

Seven Day Soil Temperatures: Stratford 73, Parlier 74, Blackwell 87, Arvin, 77, Orange Cove 80, Porterville 82, Delano 81

Record Temperatures: 109/50. Average Temperatures: 94/61

Cooling Degree Days this Season: 511 +126

Courtesy of the NWS

Average temperature for June so far: 75.3 +1.5

Precipitation:  Seasonal total for Fresno/average + or 7.63 or -3.67.  Month to Date: .00 -.20

Since Oct 1, 2019,  Bakersfield:  7.20, or +.86.  Month to Date: .02 -.05

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: 5:41, Sunset: 8:22 pm. Hours of Daylight:  14:41

Yesterday’s Weather:

MCE   : Merced               153 : DH1700 / 100 /  65 / 0.00 /

MAE   : Madera               253 : DH1700 / 100 /  61 / 0.00 /

FAT   : Fresno Airport       333 : DH1700 / 101 /  71 / 0.00 /

HJO   : Hanford Airport      242 : DH1700 / 100 /  64 / 0.00 /

NLC   : Lemoore Naval AS     234 : DH1700 / 102 /  62 / 0.00 /

BFL   : Bakersfield Airport  496 : DH1700 / 100 /  71 / 0.00 /

VIS   : Visalia Airport      292 : DH1700 / 100 /  65 / 0.00 /

PTV   : Porterville Airport  442 : DH1700 / 100 /  63 / 0.00 /

LOSC1 : Los Banos            120 : DH1600 /  99 /  66 / 0.00 /

 

Rainfall:                     24hr    W.Y.    %    Last Y.  %     Ave.     Year ave.

STOCKTON                      0.00    8.35    61   18.37   134    13.76    14.06

MODESTO                       0.00    6.94    54   13.35   104    12.82    13.11

MERCED                        0.00    9.54    78   13.27   109    12.19    12.50

MADERA                        0.00    6.02    51   11.42    98    11.71    12.02

FRESNO                        0.00    7.63    68   11.85   105    11.30    11.50

HANFORD                       0.00    6.62    67    9.50    96     9.88    10.10

BAKERSFIELD                   0.00    7.20   114    7.80   123     6.34     6.47

BISHOP                        0.00    2.25    48    8.47   182     4.65     5.18

SALINAS                          T    9.16    73   13.80   109    12.62    12.83

PASO ROBLES                   0.00   11.37    91   14.88   120    12.45    12.78

SANTA MARIA                   0.00   10.61    77   15.68   114    13.75    13.95

Next report: June 24/morning