492
ACUS02 KWNS 211656
SWODY2
SPC AC 211655
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1155 AM CDT MON SEP 21 2026
VALID 221200Z - 231200Z
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
THE SOUTHEAST...
..SUMMARY
ISOLATED DAMAGING GUSTS ARE POSSIBLE OVER PARTS OF THE SOUTHEAST ON
TUESDAY.
..SOUTHEAST
A WEAK MID/UPPER SHORTWAVE TROUGH WILL MIGRATE ACROSS THE MIDWEST ON
TUESDAY, BRINGING MODEST WESTERLY FLOW ALOFT ACROSS PORTIONS OF THE
CENTRAL AND EASTERN U.S. AT THE SURFACE, A COLD FRONT WILL SINK
SOUTHWARD ACROSS THE LOWER MS AND TN VALLEYS INTO THE CAROLINAS. MID
60S TO LOWER 70S F DEWPOINTS WILL BE IN PLACE AHEAD OF THE FRONT,
PROMOTING 1500-2500 J/KG MLCAPE AMID STRONGER HEATING FROM PARTS OF
MS/AL INTO THE SOUTHERN APPALACHIANS. MIDLEVEL LAPSE RATES AND
EFFECTIVE SHEAR MAGNITUDES WILL REMAIN WEAK, BUT WHERE STRONGER
HEATING OCCURS, STEEPENED LOW-LEVEL LAPSE RATES AMID 1.75-2 INCH PW
VALUES ARE EXPECTED. THIS COULD SUPPORT SPORADIC STRONG WIND GUSTS
WITHIN WET MICROBURSTS. OVERALL, SEVERE POTENTIAL SHOULD REMAIN
LIMITED.
..LEITMAN.. 09/21/2026
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page