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2020 - 2021 California and Southwest Weather Discussion Thread


Thunder98

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A small low circulation has been pumping a modest flow of moisture into the middle coast and making very light mountain showers in the Stanislaus area. If the stalled cool front just above Santa Rosa can get a boost and continue down the coast, this setup could get interesting. Nothing shown on the short range forecast until 18Z Thursday. Could there be snow flurries at Tahoe tonight?

That tiny circulation is way out off the coast 1000 miles or so. But eastward flow seems unrestricted. Is the blocking high deflating a bit?

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The hulking high has smothered that little low waaaaay out there and cut off the flow of moisture to the middle of the state. The western states got some moisture to work with when that Aleutian system comes through from the northwest. The southern flow of moisture from the ITCZ into the SoCal and Az continues.  Short range forecast shows rain likely again for LA area Friday morning. 

Later: I have to take it back- the tiny twist has survived and is sending more moisture to the central coast. Snow likely for the Sierra per the forecast.

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