SPC AC 270651
Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0151 AM CDT Mon Mar 27 2023
Valid 291200Z - 301200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
Severe thunderstorms are not expected on Wednesday.
An upper ridge will overspread the Plains on Wednesday ahead of a
closed upper low/trough moving southeast across CA into the western
Great Basin. At the surface, high pressure will dominate across the
Midwest and southern U.S., where a dearth of boundary-layer moisture
will result in mostly stable conditions. A surface cold front will
move across southern FL during the day, and a few thunderstorms are
possible. Additional thunderstorms are expected across parts of CA
where steepening midlevel lapse rates will support sufficient
instability for isolated lightning flashes. Increasing southerly
low-level flow across the southern Plains late in the period will
begin to transport Gulf moisture northward across southern/central
TX. Isolated, elevated thunderstorms will be possible after 00z in
this warm advection regime. Overall severe potential is expected to
remain low across the U.S. on Wednesday.
NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 0730Z