SPC 1730Z Day 2 Outlook

Day 2 Convective Outlook  
NWS Storm Prediction Center Norman OK
1130 AM CST Sun Dec 06 2020

Valid 071200Z - 081200Z

...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS SOUTHERN
FLORIDA...

...SUMMARY...
A few strong thunderstorms may occur across southern Florida Monday
morning.

...Synopsis...
An amplified large-scale flow pattern will remain over North America
on Monday. A relatively deep trough will shift eastward over the
upper Ohio Valley and Appalachians on Monday, with a related cold
front continuing to progress southeastward across southern Florida.
Meanwhile, a closed low will move south-southwestward over southern
California toward off the coast of Baja. A prevalence of dry/stable
conditions CONUS-wise will spatiotemporally confine deep convective
potential to southern Florida Monday morning.

...Florida Keys and far southern Florida Peninsula...
A late-night severe risk tonight into early Monday may persist
beyond 12Z Monday and linger for an hour or two, prior to the front
moving offshore to the Florida Straits by mid/late morning. Current
thinking is that storms will be ongoing Monday morning across the
region, including the possibility of a few strong or locally severe
storms. This would be in association with a relatively moist (near
70F surface dewpoint) and modestly unstable air mass in the presence
of 35-40 kt effective shear. Any such severe risk should wane by
mid/late morning.

..Guyer.. 12/06/2020

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