SPC 0700Z Day 2 Outlook

Day 2 Outlook Image

Day 2 Convective Outlook  
NWS Storm Prediction Center Norman OK
1157 PM CST Sun Nov 29 2020

Valid 011200Z - 021200Z


Severe thunderstorms are not expected on Tuesday.

A mature mid-latitude cyclone, with strong flow throughout its
eastern half, is forecast to be centered over the upper OH Valley
early Tuesday morning. This system is expected to move
northward/northeastward throughout the day while continuing to
occlude. Shortwave ridging is anticipated in its wake over the MS
Valley while a pair of cyclones drop southward/southeastward into
the Plains. By early Wednesday morning, the southernmost cyclone
will likely be centered over the TX Panhandle while the northernmost
cyclone will likely be centered over the eastern MT/WY and the
western Dakotas.

Short wavelength between the lead cyclone and pair of cyclones in
its wake will lead to a persistence of the cold, continental air
mass over the central and eastern CONUS. The only exception is
across the TX Coast, where southerly low-level flow will promote
moisture return ahead of an approaching cold front. Enough
instability and lift will be present for isolated lightning flashes.
Offshore trajectories will maintain stable conditions across the
western CONUS.

..Mosier.. 11/30/2020

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