SPC 1300Z Day 1 Outlook

Day 1 Outlook Image

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0655 AM CST Mon Dec 07 2020

Valid 071300Z - 081200Z


Thunderstorms should end over the Florida Keys by 9 AM EST.

...FL Keys...
A weakening convective cluster is ongoing across the Lower Keys and
recently produced measured gusts of 30-40 mph. This activity should
spread east of the Keys into the Florida Straits during the next
hour with no additional thunderstorms expected as the composite
surface outflow/leading front pushes southeast of the region.

Scattered low-topped showers are expected this afternoon downstream
of a vigorous shortwave trough that will rapidly eject from the
Mid-South to the South Atlantic Coast. Minimal buoyancy will likely
curtail sufficient deepening for charge separation. But given the
strength of ascent with steepening lapse rates, very isolated
lightning flashes might occur.

..Grams.. 12/07/2020

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