SPC 0100Z Day 1 Outlook

Day 1 Outlook Image

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0649 PM CST Sun Dec 06 2020

Valid 070100Z - 071200Z

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

...SUMMARY...
Locally damaging winds and a brief tornado are possible across south
Florida and the Keys late tonight through early Monday morning.

...South FL...
Water-vapor imagery this evening shows a mid-level shortwave trough
over the northwest Gulf Coast.  This disturbance is forecast to move
eastward over the northern Gulf Coast tonight.  Showers and
thunderstorms are forecast to increase in coverage over the
southeast Gulf tonight and gradually move towards the FL Keys and
South FL late.  The 00z Key West raob showed modest lapse rates and
400 J/kg MLCAPE but weak flow in the lowest 3km.  Strengthening
low-level warm air advection tonight will result in stronger flow
and moistening in the low levels.  This change in the environment
tonight will concurrently support increased potential for organized
storm structures.  A few of the stronger storms could yield a
localized wind/brief tornado risk primarily during the 06-12z
period.

..Smith.. 12/07/2020

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