SPC 0100Z Day 1 Outlook

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0635 PM CST Thu Jan 07 2021

Valid 080100Z - 081200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not expected tonight.

...01z Update...

Strong upper trough is shifting east across the TN Valley and will
likely progress into the southern Appalachians by sunrise. 85kt
500mb jet will translate across southern GA/northern FL tonight as
primary surface low migrates toward the GA/SC coast. While an
expansive band of pre-frontal convection currently extends from
SC-southeast GA- northern FL, lightning is quite sparse with this
activity. Even so, forecast soundings across south FL tonight
suggest some threat for lightning with stronger updrafts. For these
reasons, have extended 10 percent thunder probabilities south to
account for a few thunderstorms along/ahead of the front.

..Darrow.. 01/08/2021

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