SPC 1200Z Day 1 Outlook

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
1146 PM CST Sat Dec 05 2020

Valid 061200Z - 071200Z

...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR THE FLORIDA
KEYS AND EVERGLADES...

...SUMMARY...
A few strong to locally severe storms may occur across the Florida
Keys and Everglades tonight.

...FL Keys and Everglades...
A mid-level trough, initially near the TX coast this morning, will
move east into the northeast Gulf of Mexico by early Monday morning.
A belt of stronger mid-level flow will overspread the eastern Gulf
of Mexico after dark as a minor mid-level disturbance embedded
within this flow approaches the Keys by late Sunday night. 
Southerly low-level flow is forecast to strengthen coincident with
this impulse arriving during the 06z-12z period.  A cluster of
showers and thunderstorms is forecast to move west to east across
the Keys and the Everglades.  Although lapse rates will remain
modest, enlarging hodographs will conditionally support a risk for a
few of the stronger thunderstorms to exhibit transient rotation and
perhaps a marginal wind/tornado threat.  

Elsewhere across the Lower 48 states, conditions will be hostile for
thunderstorms.

..Smith/Lyons.. 12/06/2020

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