SPC 0730Z Day 3 Outlook

Day 3 Outlook Image

Day 3 Convective Outlook  
NWS Storm Prediction Center Norman OK
0222 AM CDT Tue Oct 13 2020

Valid 151200Z - 161200Z


Severe thunderstorms are not expected across the contiguous United
States on Thursday.

...Synopsis and Discussion...
A large-scale upper trough should amplify further on Thursday as it
moves slowly eastward across the central/eastern CONUS. A surface
low initially in the vicinity of southern Ontario should continue
developing to the northeast into Quebec, with a trailing cold front
moving east-southeastward over much of the central/eastern states.
Mainly elevated convection appears possible on an isolated basis
along/ahead of the front across parts of TX/AR/LA through Thursday
night, although instability and deep-layer shear should remain weak
across these areas. Other isolated storms may occur late Thursday
night across parts of GA and SC, where low-level moisture will
modestly increase as ascent associated with the approaching upper
trough overspreads this region. A few storms may also develop across
parts of south FL and the Keys along sea breeze boundaries as
low-level moisture increases through the period.

..Gleason.. 10/13/2020

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