SPC 1730Z Day 2 Outlook

Day 2 Outlook Image

Day 2 Convective Outlook  
NWS Storm Prediction Center Norman OK
1119 AM CST Sun Dec 27 2020

Valid 281200Z - 291200Z


Isolated thunderstorms will be possible on Monday along the coast of
southern California.

Split flow aloft is expected across the U.S. Monday, as a
northern-stream trough shifts across the Great Lakes and Northeast,
while a southern-stream trough/low shifts inland over California and
then across the Intermountain West.

At the surface, a weak/fast-moving cold front will cross the
Northeast/New England, while a Pacific front shifts across the

While most of the country will remain stable, precluding thunder
potential, cold air/steep lapse rates aloft associated with the low
moving onshore may provide enough instability to support a few
lightning flashes near or just off the southern California coast. 
This activity should diminish as the upper system passes overnight.

..Goss.. 12/27/2020

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