424
ACUS01 KWNS 131153
SWODY1
SPC AC 131151
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0651 AM CDT WED MAY 13 2026
VALID 131300Z - 141200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM CENTRAL MT
SOUTHWARD INTO NORTHERN UT...
..SUMMARY
SCATTERED THUNDERSTORMS CAPABLE OF DAMAGING WIND GUSTS ARE POSSIBLE
ACROSS PORTIONS OF THE NORTHERN HIGH PLAINS AND GREAT BASIN THIS
AFTERNOON AND EVENING. OTHER AREAS OF ISOLATED SEVERE WIND/HAIL
RISK OCCUR OVER THE UPPER OHIO VALLEY AND THE TEXAS PANHANDLE.
..WV/PA/NY
A LARGE UPPER TROUGH IS DEEPENING AS IT TRACKS SOUTHEASTWARD ACROSS
THE GREAT LAKES AND MIDWEST INTO THE UPPER OHIO VALLEY. THE
ASSOCIATED SURFACE COLD FRONT IS SWEEPING ACROSS OH, AND WILL EXTEND
FROM CENTRAL NY INTO WESTERN PA AND NORTHERN WV LATER TODAY. CLOUDS
ARE CURRENTLY PREVALENT ACROSS THIS REGION, BUT SOME
CLEARING/HEATING IS EXPECTED AS LOW-LEVEL MOISTURE IS TRANSPORTED
INTO THE AREA. THE RESULT WILL BE NARROW CORRIDOR OF SUFFICIENT
CAPE FOR THUNDERSTORM DEVELOPMENT ALONG THE FRONT FROM NY INTO WV.
GIVEN THE STRENGTH OF THE UPPER TROUGH AND WINDS ALOFT, THERE IS
CONCERN FOR A FEW SEVERE STORMS CAPABLE OF DAMAGING WINDS AND
PERHAPS HAIL...MAINLY IN THE 18-00Z PERIOD.
..GREAT BASIN
A SECOND STRONG AND PROGRESSIVE UPPER TROUGH HAS MOVED ASHORE OVER
OR/WA AND WILL SPREAD MID-LEVEL HEIGHT FALLS AND LARGE SCALE ASCENT
ACROSS MUCH OF THE GREAT BASIN AND ROCKIES TODAY AND TONIGHT.
LOW-LEVEL MOISTURE IS VERY SPARSE AHEAD OF THE SYSTEM, BUT POCKETS
OF STRONG HEATING FROM NORTHERN UT INTO EASTERN ID/WESTERN WY AND
CENTRAL MT WILL RESULT IN INVERTED-V PROFILES AND SUFFICIENT CAPE
FOR ISOLATED CHARGE SEPARATION AND ROBUST UPDRAFTS. CAM SOLUTIONS
SUGGEST A RISK OF HIGH-BASED FAST-MOVING SHOWERS AND OCCASIONAL
THUNDERSTORMS AFFECTING THE REGION, WITH THE RISK OF SEVERE WIND
GUSTS.
..TX PANHANDLE
A SURFACE DRYLINE WILL BECOME ESTABLISHED OVER THE TX PANHANDLE
LATER TODAY, WHERE TEMPERATURES WILL CLIMB WELL INTO THE 90S.
FORECAST SOUNDINGS SHOW ONLY MODEST CAPE AND LIMITED RISK OF
CONVECTIVE INITIATION OVER THIS AREA. HOWEVER, ANY STORM THAT CAN
PERSIST IN THIS ENVIRONMENT WOULD CONDITIONALLY POSE A THREAT OF
DAMAGING WIND GUSTS AND LARGE HAIL. WILL MAINTAIN THE ONGOING MRGL
RISK FOR THIS CONDITIONAL RISK.
..HART/WENDT.. 05/13/2026
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