400
ACUS02 KWNS 121655
SWODY2
SPC AC 121653

Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1153 AM CDT Mon May 12 2025

Valid 131200Z - 141200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe storms are not forecast on Tuesday.

...Synopsis and Discussion...
On Tuesday, an upper low will proceed northward across the TN and OH
Valleys, beneath the larger-scale upper ridge extending from the
Northeast into eastern Canada. As this occurs, winds aloft will
generally weaken from FL into the Mid Atlantic, but cool
temperatures aloft will maintain thunderstorm chances over much of
the East. Severe chances will be limited by poor lapse rates aloft
in most areas.

To the west, a deep upper trough will move eastward across the Great
Basin, with a intense midlevel speed max moving from southern CA
toward the Four Corners area. Moderate southwest flow aloft will
exist over the central and northern Rockies, with increasing
west/northwest flow aloft from NM into TX north of a Mexican upper
ridge. Beneath the upper trough, cold air aloft will favor daytime
thunderstorms from the Sierra into the northern Rockies, and into
the evening across the western Dakotas.

..Jewell.. 05/12/2025

$$