297
ACUS03 KWNS 140612
SWODY3
SPC AC 140611
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0111 AM CDT SUN JUN 14 2026
VALID 161200Z - 171200Z
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
THE MIDWEST...
..SUMMARY
ISOLATED STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE TUESDAY
AFTERNOON AND EVENING ACROSS PARTS OF THE MIDWEST.
..MIDWEST
AN UPPER SHORTWAVE TROUGH OVER THE MO VALLEY WILL DEVELOP EASTWARD
ACROSS THE UPPER GREAT LAKES/MIDWEST ON TUESDAY. A STALLED SURFACE
FRONT ACROSS THE GULF COAST REGION WILL SUPPRESS BOUNDARY-LAYER
MOISTURE ACROSS THE MIDWEST. SURFACE DEWPOINTS ARE FORECAST TO
GENERALLY BE IN THE MID 50S TO LOW 60S AMID STEEPENING MIDLEVEL
LAPSE RATES. THIS WILL SUPPORT MLCAPE UP TO 1500 J/KG ACROSS
PORTIONS OF THE MID-MS VALLEY TO LAKE MICHIGAN VICINITY. A WEAK
SURFACE LOW IS FORECAST TO MOVE ACROSS WI/LOWER MI AND A TRAILING
FRONT WILL MOVE ACROSS IL/IN AND VICINITY. ISOLATED TO SCATTERED
THUNDERSTORMS ARE EXPECTED DURING THE AFTERNOON. SUFFICIENT SHEAR
WILL EXIST FOR ORGANIZED STORMS, WITH 30-40 KT MIDLEVEL FLOW
DEPICTED IN FORECAST SOUNDINGS. GUSTY WINDS AND HAIL WILL BE THE
MAIN HAZARDS WITH THIS ACTIVITY DURING THE AFTERNOON AND EVENING.
SEVERE POTENTIAL WILL DIMINISH WITH EASTWARD EXTENT DUE TO
DECREASING BOUNDARY LAYER MOISTURE AND WEAKENING INSTABILITY TOWARD
THE OHIO VALLEY.
..LEITMAN.. 06/14/2026
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