SPC 0730Z Day 3 Outlook

Day 3 Outlook Image

Day 3 Convective Outlook  
NWS Storm Prediction Center Norman OK
0158 AM CDT Wed Sep 16 2020

Valid 181200Z - 191200Z


Severe thunderstorms are not expected across the continental U.S. on

A cold front will extend from the far northwestern Atlantic
(offshore the New England coast) southwestward to northern Florida
and the northern Gulf of Mexico during the forecast period, with
much of the central and eastern U.S. under the influence of high
pressure and relatively stable low-level conditions.  Deep
convection may occur in areas ahead of the front across the
Southeast where low-level moisture/buoyancy exists, though weak
shear and modest instability should keep most storms below severe
levels.  A few lightning flashes may also occur with convection
ahead of a strong mid-level wave traversing the Pacific Northwest,
though sparse coverage and weak instability aloft should keep any
severe threat low in these areas through the forecast period.

..Cook.. 09/16/2020

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