SPC 0830Z Day 3 Outlook

Day 3 Outlook Image

Day 3 Convective Outlook  
NWS Storm Prediction Center Norman OK
0205 AM CST Sun Jan 31 2021

Valid 021200Z - 031200Z


Thunderstorms are not expected on Tuesday.

Upper ridging will cover a majority of the CONUS west of the MS
River early Tuesday morning, while upper troughing will extend along
the East Coast. The East Coast trough is then expected to become
increasingly negatively tilted as a shortwave trough progresses
through its base while an embedded upper low drifts over the
Northeast. The upper ridge is forecast to gradually dampen as it
moves across the Plains and into the MS Valley. 

Lastly, upper trough initially extending from British Columbia into
the northeast Pacific will move eastward throughout the period. This
trough, which will feature very cold air aloft, will likely stretch
from the Canadian Prairie Provinces southwestward to a strong
embedded shortwave trough off the central/southern CA coast early
Wednesday morning. 

Stable conditions are expected throughout the majority of the CONUS,
limiting thunderstorm potential. Deeper convective cores could
materialize within the frontal band moving through the Pacific
Northwest, where cold mid-level temperatures could result in a
lightning flash or two. Limited coverage and low potential for
occurrence precludes introducing any thunder areas.

..Mosier.. 01/31/2021

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