879
FXUS01 KWBC 091856
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
256 PM EDT TUE SEP 09 2025
VALID 00Z WED SEP 10 2025 - 00Z FRI SEP 12 2025
...RISK OF WIDELY SCATTERED STRONG TO SEVERE THUNDERSTORMS ACROSS
PORTIONS OF THE CENTRAL AND SOUTHERN HIGH PLAINS THROUGH THIS
EVENING...
...A STRONG PACIFIC STORM WILL BRING UNSETTLED WEATHER TO MUCH OF
THE WESTERN U.S. THE NEXT FEW DAYS...
...STALLED FRONTAL BOUNDARY DRAPED ACROSS FLORIDA TO PRODUCE
ROUNDS OF SHOWERS AND THUNDERSTORMS THROUGH THE END OF THE WEEK...
INCREASING UPSLOPE MOISTURE COMBINED WITH AN UPPER-LEVEL
DISTURBANCE WILL RESULT IN THE DEVELOPMENT OF WIDELY SCATTERED
SHOWERS AND THUNDERSTORMS ACROSS PARTS OF THE CENTRAL AND SOUTHERN
HIGH PLAINS THROUGH THIS EVENING. A FEW OF THE STORMS MAY BECOME
STRONG TO SEVERE, ESPECIALLY ACROSS PARTS OF EASTERN COLORADO AND
WESTERN KANSAS WHERE A SLIGHT RISK ISSUED BY THE STORM PREDICTION
CENTER RESIDES. THE MAIN CONCERN FROM ANY STRONG TO SEVERE STORMS
WOULD BE LARGE HAIL AND DAMAGING WINDS.
MEANWHILE TO THE WEST, A STRONG UPPER-LEVEL PACIFIC STORM SYSTEM
WILL SLOWLY SPIN INLAND ACROSS THE INTERMOUNTAIN WEST, BRINGING
COOLER TEMPERATURES AND UNSETTLED WEATHER TO A LARGE PORTION OF
THE REGION THE NEXT FEW DAYS. WITH THE EXCEPTION OF THE DESERT
SOUTHWEST WHERE THE WEATHER PATTERN STAYS MAINLY DRY, THE
REMAINDER OF THE WESTERN U.S. WILL SEE DAILY ROUNDS OF SCATTERED
SHOWERS AND THUNDERSTORMS THROUGH AT LEAST MID TO LATE WEEK. FOR
PARTS OF THE PACIFIC NORTHWEST, ENHANCED MOISTURE WITH THESE
SHOWERS AND STORMS MAY EVEN LEAD TO A FLASH FLOOD RISK, ESPECIALLY
FOR MORE FLOOD SENSITIVE AREAS LIKE STEEP TERRAIN, BURN SCARS,
ETC.
A STALLED FRONTAL BOUNDARY DRAPED OVER THE FLORIDA PENINSULA WILL
BE THE FOCUS FOR DAILY ROUNDS OF SHOWERS AND THUNDERSTORMS THROUGH
THE END OF THE WEEK. WITH PLENTY OF MOISTURE IN PLACE, ANY
CLUSTERS OF SHOWERS AND STORMS THAT ARE SLOWER-MOVING OR
REPEATEDLY TRACK OVER THE SAME AREAS CAN LEAD TO LOCALIZED FLASH
FLOODING. THE STALLED BOUNDARY ALSO CONNECTS TO A WEAK SURFACE LOW
IN THE ATLANTIC EAST OF THE SOUTHERN MID-ATLANTIC STATES. AS IT
SLOWLY DRIFTS NORTHWARD PARALLEL TO THE EASTERN SEABOARD, THIS
AREA OF LOW PRESSURE MAY NEAR THE COAST JUST ENOUGH TO SPREAD
SHOWERS JUST INLAND FROM THE CAROLINAS TO SOUTHERN NEW ENGLAND ON
WEDNESDAY.
TEMPERATURES THE NEXT FEW DAYS WILL LARGELY REMAIN NEAR TO BELOW
SEPTEMBER AVERAGES ACROSS THE EAST WITH CANADIAN HIGH PRESSURE IN
CONTROL. THE STRONG AND SLOW-MOVING PACIFIC STORM WILL ALSO KEEP
TEMPERATURES INCREASINGLY COOLER THAN NORMAL ACROSS AN EXPANDING
PORTION OF THE WEST. MEANWHILE, STRENGTHENING UPPER-LEVEL RIDGING
ACROSS THE CENTRAL U.S. WILL PROMOTE MUCH WARMER THAN AVERAGE
TEMPERATURES, WITH HIGHS WELL INTO THE 80S AND 90S BY THURSDAY.
MILLER
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