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SPC Dec 19, 2023 1630 UTC Day 1 Convective Outlook

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SPC 1630Z Day 1 Outlook
Day 1 Outlook Image
Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
1023 AM CST Tue Dec 19 2023

Valid 191630Z - 201200Z


A few thunderstorms are possible today across parts of central and
northern California.

Broad/low-amplitude ridging aloft will prevail across most of the
U.S. today, in the wake of a trough shifting eastward across the
Mid-Atlantic Region and New England.  

In the West, an eastern Pacific low will continue shifting
southeastward, with only a glancing influence across the West Coast

However, this glancing influence will be enough to keep mid-levels
relatively cool, and thus maintain very weak instability across this
region.  As such, sporadic lightning strikes will remain possible --
mainly across portions of northern and central California through

Elsewhere, with the eastern U.S. surface cold front already
offshore, and cool/stable high pressure prevailing east of the
Rockies, thunderstorms are not expected.

..Goss/Thornton.. 12/19/2023

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