032
FXUS01 KWBC 290741
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
340 AM EDT WED OCT 29 2025
VALID 12Z WED OCT 29 2025 - 12Z FRI OCT 31 2025
...STORM SYSTEM TO BRING WIDESPREAD SHOWERS AND THUNDERSTORMS FROM
THE OHIO/TENNESSEE VALLEYS TO THE NORTHEAST THE NEXT COUPLE OF
DAYS...
...MUCH COOLER, WELL BELOW AVERAGE TEMPERATURES FOR MUCH OF THE
EASTERN/CENTRAL U.S....
A LINGERING COASTAL LOW ALONG THE CAROLINAS/MID-ATLANTIC WILL
CONTINUE TO BRING SOME SHOWERS ALONG WITH THE THREAT FOR MINOR TO
MODERATE COASTAL FLOODING AND SOME GUSTY WINDS. MEANWHILE,
REINFORCING UPPER-ENERGY WILL DIG AN UPPER-TROUGH/DEVELOPING
UPPER-LOW FURTHER SOUTH ACROSS THE MISSISSIPPI VALLEY AND INTO THE
SOUTHEAST WEDNESDAY, HELPING TO DEEPEN/ORGANIZE A LOW
PRESSURE/FRONTAL SYSTEM OVER THE REGION. WIDESPREAD SHOWERS AND
THUNDERSTORMS ARE EXPECTED ALONG THE NORTHEASTWARD TRACK OF THE
LOW PRESSURE THROUGH THE OHIO/TENNESSEE VALLEYS AND THE
CENTRAL/SOUTHERN APPALACHIANS DURING THE DAY AND INTO THE
MID-ATLANTIC BY WEDNESDAY NIGHT. MODERATE TO LOCALLY HEAVY
RAINFALL MAY LEAD TO SOME ISOLATED FLASH FLOODING CONCERNS,
ESPECIALLY ALONG THE MORE SENSITIVE TERRAIN OF THE UPPER
TENNESSEE/OHIO VALLEYS AND THE CENTRAL/SOUTHERN APPALACHIANS. THE
SYSTEM WILL CONTINUE NORTHEASTWARD ON THURSDAY, WITH SHOWERS AND
THUNDERSTORMS CONTINUING FOR THE MID-ATLANTIC WHILE SPREADING INTO
NEW ENGLAND. ONCE AGAIN MODERATE TO LOCALLY HEAVY RAINFALL IS
EXPECTED, WITH AN ISOLATED FLASH FLOOD THREAT FOCUSED OVER
PORTIONS OF THE NORTHERN MID-ATLANTIC/GREATER NYC AREA WHERE HEAVY
RAINFALL CHANCES MAY BE ENHANCED AS THE LINGERING COASTAL LOW
TRACKS NORTHWARD AND INLAND. THE DIGGING UPPER-TROUGH AND SURGING
COLD FRONT WILL ALSO HELP TO REINFORCE A COLDER, WELL BELOW
AVERAGE AIR MASS ACROSS MUCH OF THE EASTERN AND CENTRAL U.S.,
ESPECIALLY ALONG THE SOUTHERN TIER. WIDESPREAD HIGHS IN THE 50S
AND 60S ARE EXPECTED FOR ALL BUT THE FLORIDA PENINSULA AND SOUTH
TEXAS, THOUGH EVEN TEMPERATURES HERE WILL HAVE PLUMMETED INTO THE
70S AFTER MULTIPLE DAYS IN THE MID-90S. MORNING LOWS WILL ALSO BE
RATHER CHILLY, WITH 40S AS FAR SOUTH AS PORTIONS OF THE GULF
COAST. WIDESPREAD FROST AND FREEZE-RELATED ADVISORIES ARE IN
EFFECT ACROSS MUCH OF THE CENTRAL AND SOUTHERN HIGH PLAINS AS LOWS
DROP INTO THE LOW 30S. GUSTY WINDS ARE ALSO EXPECTED ACROSS MUCH
OF THE CENTRAL/SOUTHERN PLAINS TO LOWER MISSISSIPPI VALLEY AS
NORTHERLY WINDS STRENGTHEN BEHIND THE DEEPENING LOW PRESSURE
SYSTEM TO THE EAST.
ELSEWHERE, SOME SPOTTY LIGHT PRECIPITATION MAY LINGER INTO
WEDNESDAY ACROSS PORTIONS OF THE PACIFIC NORTHWEST AND NORTHERN
ROCKIES FOLLOWING THE PASSAGE OF A SYSTEM ON TUESDAY, WITH LOWER
ELEVATION RAIN AND HIGHER ELEVATION MOUNTAIN SNOW. PASSING
UPPER-WAVES MAY ALSO BRING SOME LIGHT SHOWERS TO THE NORTHERN
PLAINS/UPPER MIDWEST THE NEXT COUPLE OF DAYS. IN CONTRAST TO THE
EAST, AN UPPER-RIDGE OVER THE WESTERN U.S. WILL CONTINUE TO BRING
WELL ABOVE AVERAGE, MILD TO HOT TEMPERATURES THROUGH MID-WEEK.
HIGHS ACROSS THE PACIFIC NORTHWEST, GREAT BASIN, AND ROCKIES WILL
BE IN THE 50S AND 60S, WITH 70S AND 80S INTO NORTHERN/CENTRAL
CALIFORNIA. HIGHS WILL BE INTO THE 80S AND 90S ACROSS THE DESERT
SOUTHWEST AS WELL AS INTO SOUTHERN CALIFORNIA, WHERE HEAT
ADVISORIES REMAIN IN EFFECT.
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