285
ACUS01 KWNS 210447
SWODY1
SPC AC 210446
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1146 PM CDT THU MAR 20 2025
VALID 211200Z - 221200Z
..NO SEVERE THUNDERSTORM AREAS FORECAST
..SUMMARY
SEVERE THUNDERSTORMS ARE NOT FORECAST TODAY.
..SYNOPSIS
A NORTHWEST FLOW REGIME WILL EXIST ACROSS THE CONUS TODAY, WITH
MULTIPLE EMBEDDED WAVES. IN GENERAL, MINIMAL THUNDERSTORM ACTIVITY
IS FORECAST DUE TO A RELATIVELY STABLE AIR MASS DUE TO HIGH
PRESSURE. ONE SUCH HIGH WILL BE SITUATED OVER THE SOUTHEAST AND INTO
THE GULF THROUGH THE PERIOD, WITH MINIMAL MOISTURE RETURN INTO
SOUTHERN TX. ANOTHER SURFACE HIGH WILL BE CENTERED OVER THE GREAT
BASIN FOR MUCH OF THE PERIOD. THAT SAID, THUNDERSTORM CHANCES WILL
BE LIMITED TO A SMALL PART OF THE PACIFIC NORTHWEST, AND FROM
SOUTHEAST SD ACROSS IA AND INTO IL. BOTH AREAS WILL BE BENEATH THEIR
RESPECTIVE SHORTWAVE TROUGHS, WITH COOL TEMPERATURES ALOFT
SUPPORTING WEAK CONVECTION.
..JEWELL/LYONS.. 03/21/2025
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