311
FXUS01 KWBC 262010
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 PM EDT SUN OCT 26 2025
VALID 00Z MON OCT 27 2025 - 00Z WED OCT 29 2025
...PACIFIC STORM SYSTEM CONTINUES TO BRING LOWER ELEVATION RAIN
AND HAZARDOUS MOUNTAIN SNOW TO PORTIONS OF THE NORTHWEST U.S.
THROUGH MONDAY...
...UNSETTLED WEATHER AND COOL TEMPERATURES WILL IMPACT MUCH OF THE
EASTERN GULF COAST REGION AND SOUTHEAST U.S. GOING THROUGH MONDAY,
WHICH WILL INCLUDE CONCERNS THIS EVENING AND OVERNIGHT FOR SOME
ADDITIONAL SEVERE WEATHER AND FLASH FLOODING CONCERNS...
...A NEW STORM SYSTEM WILL ORGANIZE ACROSS THE MIDDLE AND LOWER
MISSISSIPPI VALLEY BY MIDWEEK...
A STORM SYSTEM IMPACTING PORTIONS OF THE PACIFIC NORTHWEST AND
NORTHERN CALIFORNIA WILL MOVE THROUGH THE GREAT BASIN AND INTERIOR
OF THE NORTHWEST THROUGH MONDAY WHICH WILL BRING ADDITIONAL FOCUS
FOR LOWER ELEVATION RAINFALL, AND LOCALLY HEAVY ACCUMULATING SNOW
FOR THE HIGHER ELEVATIONS. IN FACT, PORTIONS OF THE NORTHERN
ROCKIES MAY SEE AS MUCH AS 12 TO 18 INCHES OF NEW SNOWFALL BY LATE
MONDAY AS A COMBINATION OF PACIFIC MOISTURE AND MULTIPLE WAVES OF
LOW PRESSURE TRAVERSING A FRONTAL BOUNDARY CROSSES THROUGH THE
INTERMOUNTAIN REGION. THIS SYSTEM WILL ALSO BE SPILLING OUT ACROSS
THE NORTHERN AND CENTRAL PLAINS ON MONDAY, AND SHOWERS AND
THUNDERSTORMS ARE EXPECTED TO BREAK OUT ALONG A COLD FRONT WITH A
FOCUS ON THE DAKOTAS. BY TUESDAY, THIS COLD FRONT WILL BE SWEEPING
WELL TO THE EAST INTO THE MIDWEST AND THROUGH THE SOUTHERN PLAINS,
AS FAIRLY STRONG HIGH PRESSURE BUILDS BEHIND IT ACROSS THE
INTERMOUNTAIN WEST. THIS WILL ALLOW CONDITIONS TO GRADUALLY DRY
OUT, BUT COLDER TEMPERATURES WILL FOLLOW WITH HIGH TEMPERATURES AS
MUCH AS 10 TO 15 DEGREES BELOW NORMAL ACROSS MUCH OF THE NORTHWEST
U.S. OVER THE NEXT COUPLE OF DAYS.
MEANWHILE, A SLOW-MOVING STORM SYSTEM STRETCHING FROM THE LOWER
OHIO VALLEY AND MID-SOUTH DOWN THE CENTRAL GULF COAST WILL
CONTINUE TO GRADUALLY EJECT OFF TO THE EAST OVER THE NEXT COUPLE
OF DAYS, BUT WITH LOW PRESSURE BECOMING MORE FOCUSED NEAR THE
EASTERN GULF COAST AND THEN CONSOLIDATING OFFSHORE OF THE
SOUTHEAST U.S. ON TUESDAY. IN THE SHORT-TERM GOING THROUGH THIS
EVENING AND OVERNIGHT, AREAS OF HEAVY SHOWERS AND THUNDERSTORMS
WILL CONTINUE TO IMPACT AREAS OF ESPECIALLY SOUTHERN ALABAMA AND
INTO THE FLORIDA PANHANDLE WHERE SOME LOCALIZED AREAS OF SEVERE
THUNDERSTORMS AND POTENTIAL FOR FLASH FLOODING WILL CONTINUE. THE
STORM PREDICTION CENTER HAS DEPICTED A SLIGHT RISK (LEVEL 2/5) TO
ADDRESS CONCERNS FOR SOME DAMAGING WIND POTENTIAL AND A COUPLE OF
TORNADOES. WITH LOCALLY A FEW INCHES OF RAIN POSSIBLE, THE WEATHER
PREDICTION CENTER HAS DEPICTED A SLIGHT RISK OF EXCESSIVE RAINFALL
(LEVEL 2/4). FARTHER EAST ACROSS PORTIONS OF EAST-CENTRAL FLORIDA
INCLUDING THE SPACE COAST, LOCALLY VERY HEAVY AND SLOW-MOVING
SHOWERS AND THUNDERSTORMS WILL BE A CONCERN THIS EVENING AND
OVERNIGHT WITH LOCALLY SEVERAL INCHES OF RAIN POSSIBLE NEAR A
FRONTAL ZONE AS VERY MOIST EASTERLY ATLANTIC FLOW IMPACTS THE
REGION. A SLIGHT RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL HAS BEEN
DEPICTED HERE GIVEN THE CONCERNS FOR FLOODING IMPACTS. LOCALLY
HEAVY RAINS WITH THIS BROADER STORM SYSTEM WILL ALSO IMPACT AREAS
OF THE SOUTHERN APPALACHIANS AND INTERIOR OF THE SOUTHEAST ON
MONDAY. LOW PRESSURE WILL BEGIN TO PULL AWAY FROM THE SOUTHEAST
U.S. ON TUESDAY, BUT LINGERING CLOUDS AND LIGHT RAIN WILL HELP
KEEP TEMPERATURES RATHER COOL FOR THIS TIME OF THE YEAR, WITH HIGH
TEMPERATURES EXPECTED TO BE WELL BELOW NORMAL ACROSS MUCH OF THE
SOUTHEAST FOR THE EARLY PART OF THE WEEK.
BY MIDWEEK, THE AFOREMENTIONED UNSETTLED WEATHER AND ASSOCIATED
COLD FRONT EJECTING OUT OF THE WEST AND CROSSING THE PLAINS AND
MIDWEST WILL BEGIN THROUGH THE MIDDLE AND LOWER MISSISSIPPI VALLEY
REGION. A MORE WIDESPREAD AREA OF HEAVY SHOWERS AND THUNDERSTORMS
WILL BEGIN TO OVERSPREAD AREAS OF THE MIDWEST ON DOWN TO THE
NORTHWEST GULF COAST REGION ON TUESDAY. THIS WILL THEN RELOAD
WIDESPREAD UNSETTLED WEATHER AND COOL TEMPERATURES ACROSS MUCH OF
THE OHIO AND TENNESSEE VALLEY REGION AND INTO THE SOUTHEAST U.S.
ON WEDNESDAY AS THIS NEW STORM SYSTEM ADVANCES OFF TO THE EAST.
ORRISON
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