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  • April 13, 2024 report April 13, 2024 Summary  The center of circulation of a rather robust upper low is just off the northern California coast at this hour. By…
  • April 12, 2024 report April 12, 2024 Summary  today is the last day under a dome of high pressure as the high will give way to a developing low…
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  • April 10, 2024 report April 10, 2024 Summary  There are two main features we’re looking at this morning. The first is a center of high pressure just off the…
Forecast

November 21, 2020/pm update

November 21, 2020

Summary: Bands of mid and high level clouds will continue to stream over central California from a weakening low off the central coast.  This system will be kicked inland by a trough of low pressure extending from the Gulf of Alaska to the  central coast by Monday morning.  by Tuesday, a progressive ridge of high pressure will  move in from the eastern Pacific, briefly generating a northerly flow over California.  Even though the air mass is somewhat cooler, it’s not cool enough for widespread frost to develop.

 

We are still looking at the pattern for Thursday through Saturday as a cold trough dives southward over the interior west and a ridge builds northeastward off the Pacific coast and into western Canada.  This will create a north/northeast flow for Friday and Saturday.  models this afternoon aren’t quite as bullish on the possibility of colder and drier air spilling into the valley.  Most, if not all, this air mass is now projected to stay just east of the Sierra Nevada, but this could change.

 

Upper level high pressure will build into the western states over the weekend for somewhat warmer daytime temperatures.  However, with a relatively dry air mass, overnight lows will remain in the 30s at most locations.

 

Forecast:  Other than periods of mid and high level clouds at times, mostly clear skies will prevail through Monday.  Mostly clear skies Monday night through Saturday with patchy night and morning fog each day.

 

Short Term:                                                                        

Madera 34/62/34/60 Reedley 35/63/35/60 Dinuba 33/61/33/59
Porterville 35/64/35/61 Lindsay 33/63/33/60 Delano 35/64/35/59
Bakersfield 42/64/41/59 Taft 44/64/42/58 Arvin 38/64/37/59
Lamont 37/64/37/59 Pixley 34/63/34/60 Tulare 32/62/33/58
Woodlake 34/63/34/60 Hanford 35/63/35/60 Orosi 32/63/33/59

 

Winds: Winds during the night through midmorning hours will be generally at or less than 5 MPH with extended periods of near calm conditions through Tuesday.  Winds during the late morning through afternoon hours will be variable to 10 MPH.

 

Rain:  Expect dry weather tonight and for at least the next 7 to possibly 10 days.

 

Frost:  Bands of mid and high level clouds will continue to stream over the valley tonight from a weak disturbance off shore.  It will be kicked eastward Sunday by a trough of low pressure moving through.  Behind this trough is a marginally cooler air mass which will continue the trend of most locations dropping into the 30s overnight with coldest locations in  the lower 30s.

 

I am still watching with great interest the pattern for Friday through Sunday.  By thanksgiving afternoon, a massive high will be building along the central coast with a ridge extending inland into western Canada.  This will generate a north/northeast flow over the western states as a cold trough digs southward into the Rocky Mountain region.

 

Models this afternoon are not quite as bullish on a cold air mass moving into California, but rather keep the mass just to the east of the Sierra Nevada.  Since this potential pattern is still several days away, adjustments will be made, but for now it doesn’t appear a significant freeze event will occur.  That said, I wouldn’t be surprised to see temperatures in the upper 20s to the lower 30s beginning Friday morning.

 

Lows Tonight:

Terra Bella

Af

Porterville

Af

Ivanhoe

32

Woodlake

32

Terra Bella

Af

Porterville

Af

Ivanhoe

32

Woodlake

32

Strathmore

Af

McFarland

32

Ducor

Af

Tea Pot Dome

Af

Lindsay

Af

Exeter

32

Famoso

Af

Madera

Af

Belridge

32

Delano

Af

North Bakersfield

Af

Orosi

32

Orange Cove

Af

Lindcove

32

Lindcove Hillside

Af

Sanger River Bottom

30

Root Creek

32

Venice hill

Af

Rosedale

Af

Jasmine

Af

Arvin

Af

Lamont

Af

Plainview

Af

Mettler

Af

Edison

Af

Maricopa

Af

Holland Creek

Af

Tivy Valley

Af

Kite Road South

Af

Kite Road North

Af

AF=Above Freezing

Next report: November 22/morning