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SPC Day 1 Outlook

Updates are issued at 0600 UTC, 1300 UTC, 1630 UTC, 2000 UTC, 0100 UTC - Current UTC time: May 13 2021 2:27 am

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Day 2

Categorical Day 1 Outlook

ACUS01 KWNS 130037
SPC AC 130035

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0735 PM CDT Wed May 12 2021

Valid 130100Z - 131200Z


Severe thunderstorm threat is low the rest of tonight.

...01z Update...

Weak short-wave trough is translating across the northern/central
High Plains this evening. This feature appears to be partly
responsible for isolated thunderstorm activity that stretches across
the western Dakotas into northeast CO. However, with loss of diurnal
heating lightning frequency should lessen after sunset.

Isolated thunderstorms are also gradually decreasing/weakening
across the FL Peninsula. Earlier activity has contributed to
boundary-layer cooling and weaker buoyancy, along with the majority
of convection now observed offshore. 00z sounding from MFL remains
unstable but cooling over the next few hours will limit updraft
intensity. For these reasons have lowered severe probabilities
across the eastern FL Peninsula.

..Darrow.. 05/13/2021


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