SPC 0600Z Day 2 Outlook

Day 2 Outlook Image

Day 2 Convective Outlook  
NWS Storm Prediction Center Norman OK
1228 AM CDT Tue Oct 13 2020

Valid 141200Z - 151200Z


Thunderstorms are not forecast across the contiguous United States
on Wednesday.

...Synopsis and Discussion...
Enhanced, generally westerly flow across the northern half of the
CONUS should transition to an amplifying large-scale upper trough
across the central states on Wednesday. At the surface, low pressure
initially over the northern Plains should develop east-northeastward
across the Upper Midwest, Great Lakes, and southern Ontario through
the period. A trailing cold front is forecast to sweep southeastward
across much of the Plains and upper/mid MS Valley. Modest low-level
moisture return may occur across parts of the southern Plains and
Southeast ahead of the front. However, capping across the southern
Plains will likely prohibit convective development, while negligible
ascent and poor mid-level lapse rates should limit thunderstorm
potential across the Southeast. Thunderstorms also appear unlikely
across the Upper Midwest/Great Lakes in advance of the developing
upper trough, as instability is forecast to be very meager.

..Gleason.. 10/13/2020

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