280
FXUS01 KWBC 310458
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
1257 AM EDT FRI OCT 31 2025
VALID 12Z FRI OCT 31 2025 - 12Z SUN NOV 02 2025
..HEAVY RAINS OVER THE PACIFIC NORTHWEST FRIDAY INTO SATURDAY
...TRICK OR TREATING WILL BE DRY ACROSS MUCH OF THE LOWER 48,
EXCEPT FOR PORTIONS OF THE PACIFIC NORTHWEST, NORTHERN & CENTRAL
APPALACHIANS, & FROM THE UPPER MIDWEST INTO THE GREAT LAKES...
...BELOW AVERAGE TEMPERATURES EXPECTED FROM THE PLAINS INTO THE
EAST; ABOVE AVERAGE TEMPERATURES FROM THE HIGH PLAINS/ROCKIES TO
THE WEST COAST...
AN INTENSE CYCLONE APPROACHING OCTOBER LOW PRESSURE RECORDS FOR
NEW ENGLAND WILL CONTINUE TO PRODUCE WIDESPREAD WET WEATHER AS IT
MOVES THROUGH THE REGION FRIDAY. THE FLOOD THREAT FROM THIS
SYSTEM REMAIN LOW AS DROUGHT CONDITIONS HAVE RESULTED IN LOW
STREAM FLOWS AND DRY SOILS. THE EXCEPTION WILL BE OVER URBANIZED
AREAS OF THE NORTHEAST WHERE A PERIOD OF HEAVY RAIN ALONG AND
AHEAD OF THE ASSOCIATED COLD FRONT THURSDAY AFTERNOON INTO
THURSDAY EVENING MAY RESULT IN ISOLATED URBAN RUNOFF ISSUES AND
WHERE RECENT LEAF FALL HAS CLOGGED DRAINAGE. HEAVY RAINS ALSO
LIKELY TO SPREAD INTO PORTIONS OF THE PACIFIC NORTHWEST FRIDAY
INTO EARLY SATURDAY AS AN ATMOSPHERIC RIVER EVENT IMPACTS THESE
AREAS. AT THE MOMENT, IT DOES NOT APPEAR TO BE A PROLONGED EVENT,
LIMITING THE POTENTIAL FOR VERY HEAVY TOTALS AND KEEPING ANY
FLOODING RISK AT A MINIMUM. FROM PORTIONS OF THE OHIO VALLEY
THROUGH THE CUMBERLAND PLATEAU INTO THE SOUTHEAST, RAINFALL IS
EXPECTED FROM LATE SATURDAY THROUGH SUNDAY INTO MONDAY AS A WEAK
AREA OF LOW PRESSURE AND A COUPLE FRONTS HELP FOCUS PRECIPITATION.
MUCH OF THE COUNTRY WILL HAVE GOOD TRICK OR TREATING WEATHER THIS
EVENING/TONIGHT. THE EXCEPTIONS WILL BE FOR AREAS OF THE PACIFIC
NORTHWEST, FROM THE UPPER MIDWEST INTO THE GREAT LAKES, AND ACROSS
THE NORTHERN AND CENTRAL APPALACHIANS.
TEMPERATURE WISE, A COOL WEATHER PATTERN IS ON TAP FROM THE PLAINS
EASTWARD DUE TO THE COMBINATION OF COOL AIR IN THE WAKE OF THE
SYSTEM PUSHING THROUGH THE EAST AND A REINFORCING COLD AIR MASS
MOVING IN BEHIND IT, COLD ENOUGH TO INDUCE LAKE EFFECT
PRECIPITATION. IN CONTRAST, OUTSIDE THE NORTHWEST, AREAS FROM THE
ROCKIES TO THE WEST COAST AND INCREASINGLY ACROSS THE HIGH PLAINS
WILL SEE MOSTLY ABOVE AVERAGE TEMPERATURES AND DRY WEATHER OVER
THE NEXT FEW DAYS. ON MONDAY, A COUPLE RECORD HIGH TEMPERATURES
ARE POSSIBLE ALONG THE COLORADO FRONT RANGE.
ROTH
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