027
ACUS03 KWNS 110725
SWODY3
SPC AC 110724
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0224 AM CDT WED JUN 11 2025
VALID 131200Z - 141200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM PARTS OF
MONTANA SOUTHEASTWARD ACROSS THE CENTRAL HIGH PLAINS...
..SUMMARY
SCATTERED SEVERE STORMS MAY OCCUR FRIDAY FROM MONTANA INTO THE
CENTRAL PLAINS, WITH HAIL AND CORRIDORS OF DAMAGING WINDS POSSIBLE.
..SYNOPSIS AND DISCUSSION
A SHORTWAVE TROUGH WILL MOVE FROM THE PACIFIC NORTHWEST INTO THE
NORTHERN ROCKIES, WITH PRECEDING SHORTWAVE RIDGING OVER THE NORTHERN
HIGH PLAINS. HIGH PRESSURE OVER THE UPPER MS VALLEY WILL HELP SHUNT
LOW-LEVEL MOISTURE WESTWARD DUE TO SOUTHWEST WINDS, AND A PLUME OF
THETA-E WILL DEVELOP FROM THE CENTRAL PLAINS INTO EASTERN WY AND
SOUTH-CENTRAL MT LATE.
BY LATE AFTERNOON, AND THROUGH EVENING, STORMS ARE LIKELY FROM
WESTERN INTO CENTRAL MT, EXTENDING DOWN THE FRONT RANGE. THE WEST TO
NORTHWEST FLOW ALOFT ATOP THE BACKED SURFACE WINDS SHOULD RESULT IN
A FAVORABLE AREA OF SHEAR FOR CELLS PRODUCING HAIL, AND, EVENTUAL
MERGING OF OUTFLOWS AND MCS POTENTIAL FROM NORTHEAST CO/SOUTHEAST WY
INTO WESTERN NE AND KS, WITH AREAS OF DAMAGING WIND POSSIBLE.
ELSEWHERE, ISOLATED CELLS ARE LIKELY TO DEVELOP OVER THE SOUTHERN
HIGH PLAINS WHERE STRONG HEATING WILL OCCUR WITHIN A WEAK SURFACE
TROUGH, AND SOUTHEAST WIND MAINTAIN MOISTURE AND INSTABILITY. HAIL
AND LOCALLY STRONG GUSTS WILL BE LIKELY IN THIS MARGINAL SHEAR
ENVIRONMENT.
..JEWELL.. 06/11/2025
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