SPC Mar 2, 2025 Day 4-8 Severe Weather Outlook

Day 4-8 Outlook

Day 4-8 Convective Outlook  
NWS Storm Prediction Center Norman OK
0351 AM CST Sun Mar 02 2025

Valid 051200Z - 101200Z

...DISCUSSION...
As the center of a broad and deep surface cyclone migrates across
the lower Great Lakes region into Quebec Wednesday through Wednesday
night, strong deep-layer mean wind fields will spread east of the
Appalachians through the Atlantic Seaboard.  This may include one
south to south-southwesterly core of 50-80 kt winds in the 850-500
mb layer, coincident with a weakening convective band, remnant from
storms developing on Tuesday across the lower Mississippi Valley. 
Destabilization with the approach of this activity may not be
sufficient to support substantive re-intensification as it
overspreads southern/middle Atlantic coastal areas during the day
Wednesday, but it might still be accompanied by locally strong to
severe wind gusts.  In its wake, it also might not be out of the
question that destabilization beneath the mid-level dry slot could
become supportive of vigorous thunderstorm development during the
afternoon to the east of the Blue Ridge.  However, the extent of
this potential remains unclear at this time.

In the wake of the cyclone, much of the nation, from the Pacific
coast into Great Plains and Southeast, appears likely to remain
under the influence of one prominent belt of westerlies emanating
from the mid-latitude Pacific.  There is some signal in the
medium-range guidance that an embedded short wave trough might
support a developing frontal wave across the eastern Gulf Coast into
southern Atlantic Seaboard vicinity late this coming week into next
weekend.  However, it is not yet clear that this will be strong
enough to support an appreciable risk for severe storms.

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