SPC Apr 7, 2025 0730 UTC Day 3 Severe Thunderstorm Outlook

SPC 0730Z Day 3 Outlook

Day 3 Convective Outlook  
NWS Storm Prediction Center Norman OK
0219 AM CDT Mon Apr 07 2025

Valid 091200Z - 101200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are possible across portions of the the Middle
Mississippi Valley and northern High Plains, though organized severe
storms are not expected.

...Synopsis and Discussion...
An amplifying/intensifying midlevel trough will track southeastward
from the northern Plains toward the Lower Ohio Valley through the
period. A related surface cyclone will advance eastward from the
central Plains to the Lower Great Lakes, while a trailing cold front
moves eastward across the Lower/Middle Mississippi Valley. Ahead of
the trough and surface cyclone, low-level moisture will be limited,
though cold midlevel temperatures/steep midlevel lapse rates will
result in weak instability. Given strengthening DCVA and low-level
warm advection, isolated to widely scattered thunderstorms will be
possible, with a focus over the Middle Mississippi Valley. Organized
severe thunderstorms are not expected at this time. 

Farther west, steep deep-layer lapse rates will contribute to weak
buoyancy over the northern High Plains, where ascent in the
left-exit region of an upper jet will promote isolated
thunderstorms.

..Weinman.. 04/07/2025

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