218
FXUS01 KWBC 300636
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
236 AM EDT THU OCT 30 2025
VALID 12Z THU OCT 30 2025 - 12Z SAT NOV 01 2025
...STRENGTHENING STORM SYSTEM TO BRING WIDESPREAD SHOWERS AND
THUNDERSTORMS AS WELL AS GUSTY WINDS AND THE RISK FOR COASTAL
FLOODING TO THE NORTHEAST THURSDAY...
...WIDESPREAD COOL, WELL BELOW AVERAGE AFTERNOON HIGHS AND CHILLY
MORNING LOWS CONTINUE FROM THE SOUTHEAST TO THE CENTRAL/SOUTHERN
PLAINS...
...PACIFIC STORM SYSTEM/ATMOSPHERIC RIVER TO BRING HEAVY RAIN TO
THE PACIFIC NORTHWEST FRIDAY...
A DEEP UPPER-LOW AND ACCOMPANYING LOW PRESSURE/FRONTAL SYSTEM
LIFTING FROM THE OHIO/TENNESSEE VALLEYS INTO THE NORTHEASTERN U.S.
WILL CONTINUE TO BRING WIDESPREAD SHOWERS AND THUNDERSTORMS THE
NEXT COUPLE OF DAYS. THE FOCUS FOR MODERATE TO LOCALLY HEAVY
RAINFALL WILL SHIFT INTO THE MID-ATLANTIC AND NEW ENGLAND THURSDAY
AS RAINFALL TAPERS OFF ACROSS THE UPPER OHIO/TENNESSEE VALLEYS AND
SOUTHERN/CENTRAL APPALACHIANS. THIS IS ESPECIALLY TRUE ACROSS THE
NORTHERN MID-ATLANTIC/GREATER NYC AREA WHERE A FETCH OF MORE
MOIST, UNSTABLE AIR FROM THE ATLANTIC MAY LEAD TO SOME HEAVIER
DOWNPOURS AND ISOLATED FLASH FLOODING. THE STORM PREDICTION CENTER
HAS ALSO NOTED A MARGINAL RISK (LEVEL 1/5) OF SEVERE WEATHER
ACROSS THE SOUTHERN MID-ATLANTIC AS STRONG WIND FIELDS ALONG WITH
THIS FETCH OF UNSTABLE AIR MAY LEAD TO SOME ISOLATED DAMAGING
WINDS AND PERHAPS A TORNADO. THE SYSTEM WILL QUICKLY MOVE TO THE
NORTHEAST ON FRIDAY WITH SHOWERS AND MODERATE RAINFALL LINGERING
LONGEST ACROSS THE INTERIOR NORTHEAST. IN ADDITION TO HEAVY RAIN,
THE DEEPENING LOW PRESSURE SYSTEM WILL ALSO BRING THE CHANCE FOR
SOME GUSTY WINDS AND COASTAL FLOODING.
TEMPERATURES WILL REMAIN COOL AND WELL BELOW AVERAGE FOR MUCH OF
THE EASTERN/CENTRAL U.S. THURSDAY FOLLOWING THE PASSAGE OF THE
DEEP UPPER-LOW AND STRONG COLD FRONT. THIS WILL ESPECIALLY BE TRUE
ALONG THE SOUTHERN TIER WHERE HIGHS IN THE 50S AND 60S WILL BE
COMMON INCLUDING AS FAR SOUTH AS THE GULF COAST. ONLY THE FLORIDA
PENINSULA AND SOUTH TEXAS WILL SEE HIGHS INTO THE 70S, BUT EVEN
THIS IS QUITE A CHANGE FOR SOUTH TEXAS AFTER A PROLONGED STRETCH
OF NEAR RECORD HIGH TEMPERATURES INTO THE MID-90S. TEMPERATURES
WILL MODERATE SOME FOR HALLOWEEN, BUT STILL REMAIN COOLER AND
BELOW AVERAGE. MORNING LOWS WILL BE RATHER CHILLY AS WELL FRIDAY
AND SATURDAY, WITH 30S AND 40S COMMON ACROSS TEXAS AND THE
SOUTHEAST AND EVEN FOR SOME LOCATIONS ALONG THE GULF COAST. PATCHY
FROST WILL REMAIN A CONCERN.
AFTER A COUPLE DAYS OF DRIER WEATHER MID-WEEK, ANOTHER PACIFIC
SYSTEM AND ACCOMPANYING MOISTURE FETCH/ATMOSPHERIC RIVER IS
FORECAST TO MOVE INTO THE PACIFIC NORTHWEST ON FRIDAY. HEAVY
RAINFALL IS EXPECTED WITH SEVERAL INCHES POSSIBLE ALONG FAVORABLE
UPSLOPE TERRAIN OF THE OLYMPICS, CASCADES, AND COASTAL RANGES AS
SNOW LEVELS WILL REMAIN HIGH. SOME ISOLATED FLOODING WILL BE
POSSIBLE ESPECIALLY ALONG RISING RIVERS. IN CONTRAST TO THE EAST,
THE WESTERN U.S. WILL REMAIN WELL ABOVE AVERAGE HEADING INTO THE
WEEKEND WITH UPPER-RIDGING BEING MAINTAINED OVERHEAD. HIGH
TEMPERATURES WILL BE IN THE 50S AND 60S FOR THE PACIFIC
NORTHWEST/NORTHERN CALIFORNIA AND THE INTERIOR WEST, THE 70S AND
80S FOR CENTRAL CALIFORNIA, AND INTO THE 80S AND 90S FOR THE
DESERT SOUTHWEST AND SOUTHERN CALIFORNIA.
ELSEWHERE, SOME LIGHT AND SPOTTY SHOWERS ARE EXPECTED FOR PORTIONS
OF THE PLAINS AND UPPER MIDWEST AS A WEAK CLIPPER-LIKE SYSTEM
PASSES BY. SOME LAKE EFFECT SHOWERS ARE POSSIBLE ALONG THE GREAT
LAKES WITH NORTHWESTERLY FLOW IN PLACE FOLLOWING THE PASSAGE OF
THE EASTERN U.S. SYSTEM. MOISTURE RETURN AHEAD OF A DEVELOPING
FRONTAL BOUNDARY ALONG THE WESTERN GULF COAST MAY START TO BRING
SOME THUNDERSTORM CHANCES BY SATURDAY MORNING.
PUTNAM
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page