SPC 0830Z Day 3 Outlook

Day 3 Outlook Image

Day 3 Convective Outlook  
NWS Storm Prediction Center Norman OK
0124 AM CST Wed Jan 13 2021

Valid 151200Z - 161200Z


Thunderstorms are not expected across the U.S. mainland Friday.


A closed synoptic upper low will be centered across the Midwest
early Friday. This feature will move slowly east through the OH and
TN Valleys during the day. The accompanying occluded surface low
will weaken across the Great Lakes, while secondary cyclogenesis is
forecast near the Mid Atlantic coast late in the period. A front
will initially extend from the occluded low over the Great Lakes, 
southeast through the southern Appalachians into the Gulf Coast
States. The front will continue east and off the Atlantic seaboard
by late Friday night. Bands of precipitation will likely occur in
vicinity of this boundary. However, very limited moisture return and
meager to no instability should preclude thunderstorm development.

..Dial.. 01/13/2021

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