SPC 0730Z Day 3 Outlook

Day 3 Outlook Image

Day 3 Convective Outlook  
NWS Storm Prediction Center Norman OK
0210 AM CDT Mon Oct 19 2020

Valid 211200Z - 221200Z


No severe thunderstorms are expected across the continental United
States on Wednesday or Wednesday night.

West-southwesterly mid-level flow will be in place on Wednesday from
the Rockies eastward to the Great Lakes. At the surface, high
pressure will dominate the Great Lakes and Ohio Valley as moisture
returns northward into the central Plains and mid Mississippi
Valley. Scattered thunderstorms will be possible from late Wednesday
afternoon into the overnight period as low-level flow increases
along the northern edge of the moist sector from the central Plains
to the southwestern Great Lakes. Isolated thunderstorms will also be
possible from parts of the southern Plains eastward across the Gulf
Coast States. A few storms may also develop from northeast Ohio into
northwestern New England. The combination of instability and shear
across the continental United States appears insufficient for a
severe threat on Wednesday and Wednesday night.

..Broyles.. 10/19/2020

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