581
FXUS01 KWBC 260754
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
354 AM EDT SUN OCT 26 2025
VALID 12Z SUN OCT 26 2025 - 12Z TUE OCT 28 2025
...PACIFIC STORM SYSTEM CONTINUES TO BRING LOWER ELEVATION RAIN
AND HAZARDOUS MOUNTAIN SNOW TO THE NORTHWESTERN U.S...
...SHOWERS AND THUNDERSTORMS CONTINUE AHEAD OF A SYSTEM MOVING
THROUGH THE SOUTHEAST SUNDAY WITH SOME SCATTERED FLASH FLOODING
POSSIBLE ALONG THE CENTRAL GULF COAST...
...COASTAL STORM TO GENERATE PERIODS OF RAIN AND THUNDERSTORMS IN
THE SOUTHEAST ON MONDAY...
A STORM SYSTEM MOVING THROUGH THE NORTHWESTERN U.S. WILL CONTINUE
TO BRING LOWER ELEVATION COASTAL/VALLEY RAIN AND HAZARDOUS HIGH
ELEVATION SNOW THROUGH SUNDAY. A COLD FRONT PASSAGE HAS BROUGHT
COOLER, DRIER AIR WITH MORE MODERATE RAINFALL TOTALS EXPECTED
COMPARED TO THE PRIOR DAYS FUELED BY AN ATMOSPHERIC RIVER.
ADDITIONAL LOCALLY HEAVY SNOWFALL CAN BE EXPECTED THROUGH THE
CASCADES AND RANGES OF THE NORTHERN GREAT BASIN/ROCKIES WITH SNOW
LINGERING LONGEST INTO MONDAY FOR THE NORTHERN ROCKIES. SOME SNOW
MAY MIX IN FOR THE HIGHER MOUNTAIN VALLEYS OF THE NORTHERN ROCKIES
BUT LITTLE TO NO ACCUMULATION IS EXPECTED. GUSTY WINDS AND HIGH
SURF ALONG THE PACIFIC COAST WILL ALSO REMAIN POSSIBLE. INITIALLY
LIGHT SHOWERS OVER THE NORTHERN HIGH PLAINS SUNDAY WILL EXPAND IN
COVERAGE ACROSS THE NORTHERN PLAINS AND UPPER MIDWEST ON MONDAY AS
THE STORM SYSTEM CONTINUES EAST. SOME MORE MODERATE RAINFALL
TOTALS WILL BE POSSIBLE ALONG WITH GUSTY WINDS.
TO THE SOUTH, AN UPPER-WAVE AND ACCOMPANYING SURFACE FRONTAL
SYSTEM WILL MOVE FROM THE SOUTHERN PLAINS DEEPER INTO THE LOWER
MISSISSIPPI VALLEY AND THE SOUTHEAST SUNDAY SUPPORTING BOTH
CONTINUED ORGANIZED THUNDERSTORMS AS WELL AS ADDITIONAL
DEVELOPMENT INTO THE AFTERNOON HOURS. WHILE MOST OF THE
PRECIPITATION IS EXPECTED TO REMAIN ON THE COOLER SIDE OF THE
FRONTAL SYSTEM LIMITING MOISTURE AND INSTABILITY COMPARED TO THE
PRIOR DAYS, LOCALLY HEAVY DOWNPOURS AND SOME ISOLATED FLASH
FLOODING WILL STILL BE POSSIBLE. A NARROW CORRIDOR AHEAD OF THE
COLD FRONT ALONG THE CENTRAL GULF COAST IS EXPECTED TO SEE A MORE
MOISTURE RICH AND UNSTABLE ENVIRONMENT SUPPORTING HEAVIER
DOWNPOURS AND THE THREAT OF SCATTERED FLASH FLOODING, WITH A
SLIGHT RISK OF EXCESSIVE RAINFALL (LEVEL 2/4) NOW IN PLACE. SOME
ISOLATED SEVERE WEATHER INCLUDING LARGE HAIL, DAMAGING WINDS, AND
A TORNADO OR TWO WILL ALSO BE POSSIBLE. THE UPPER-WAVE IS EXPECTED
TO HELP SPAWN AN ADDITIONAL AREA OF LOW PRESSURE OFF THE SOUTHEAST
ATLANTIC COAST INTO MONDAY THAT WILL HELP TO USHER IN ADDITIONAL
MOISTURE TO FUEL SHOWERS AND THUNDERSTORMS ALONG THE COAST AND
INLAND THROUGH THE SOUTHERN APPALACHIANS. SOME ISOLATED FLASH
FLOODING WILL BE POSSIBLE PARTICULARLY INTO THE TERRAIN OF THE
SOUTHERN APPALACHIANS.
ELSEWHERE, THUNDERSTORMS ARE EXPECTED SUNDAY ALONG THE ATLANTIC
COAST OF FLORIDA AS A WAVY FRONTAL BOUNDARY LIFTS NORTHWARD
THROUGH THE REGION. SOME SPOTTY SHOWERS WILL BE POSSIBLE IN NEW
ENGLAND. THE REST OF THE COUNTRY SHOULD REMAIN DRY. TEMPERATURES
WILL BE AROUND OR BELOW FALL AVERAGES ACROSS THE
NORTHEAST/MID-ATLANTIC AS POST-FRONTAL HIGH PRESSURE REMAINS IN
PLACE, WITH 40S, 50S, AND A FEW 60S FORECAST. BELOW AVERAGE
TEMPERATURES ARE ALSO EXPECTED NORTH OF THE TRACK OF THE SOUTHERN
TIER UPPER-WAVE/COLD FRONT FROM THE CENTRAL PLAINS EAST THROUGH
THE MID-SOUTH AND INTO THE SOUTHEAST, WITH HIGHS IN THE 50S AND
60S. SOME PARTICULARLY COOLER AND BELOW AVERAGE TEMPERATURES WILL
COME TO THE CAROLINAS/GEORGIA ON MONDAY WITH HIGHS MAINLY IN THE
50S. TEMPERATURES WILL CONTINUE TO BE COOLER AND BELOW AVERAGE
ACROSS THE PACIFIC NORTHWEST/NORTHERN CALIFORNIA INTO THE NORTHERN
GREAT BASIN/ROCKIES FOLLOWING A COLD FRONTAL PASSAGE, WITH HIGHS
MAINLY IN THE 40S AND 50S. WARMER, ABOVE AVERAGE CONDITIONS ARE
EXPECTED ALONG THE SOUTHERN TIER WITH 70S AND 80S FROM FLORIDA AND
THE GULF COAST WEST THROUGH TEXAS AND INTO THE DESERT SOUTHWEST.
SOME NOTABLY ABOVE AVERAGE, POSSIBLY DAILY RECORD TYING/BREAKING
TEMPERATURES CONTINUE IN FAR SOUTH TEXAS WITH HIGHS INTO THE LOW
TO MID-90S. AN AMPLIFIED UPPER-RIDGE CONTINUES TO BRING ABOVE
AVERAGE TEMPERATURES TO THE FOUR CORNERS/CENTRAL ROCKIES REGION
NORTHEASTWARD INTO THE NORTHERN PLAINS/UPPER MIDWEST, WITH 50S,
60S, AND EVEN SOME 70S EXPECTED.
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