247
FXUS01 KWBC 011936
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
335 PM EDT WED OCT 01 2025
VALID 00Z THU OCT 02 2025 - 00Z SAT OCT 04 2025
...IMELDA ACCELERATING EASTWARD OUT TO SEA; SWELLS, HIGH SURF, AND
DANGEROUS RIP CURRENTS CONTINUE ALONG MUCH OF THE EAST COAST THE
NEXT SEVERAL DAYS...
...THUNDERSTORMS AND HEAVY RAINFALL EXPECTED ALONG THE SOUTHEAST
ATLANTIC COAST WITH ISOLATED FLASH FLOODING POSSIBLE...
...COOL AND UNSETTLED WEATHER PERSISTS ACROSS PORTIONS OF THE
GREAT BASIN AND PACIFIC NORTHWEST...
...UNSEASONABLY HOT TEMPERATURES CONTINUE FOR MUCH OF THE PLAINS
AND MIDWEST THROUGH THE REMAINDER OF THE WEEK...
IMELDA CONTINUES ON AN EAST-NORTHEAST TRACK IN THE SOUTHWEST
ATLANTIC OCEAN AND IS NOW ACCELERATING FARTHER OUT TO SEA. IN ITS
WAKE, STRONG HIGH PRESSURE WILL DESCEND SOUTHWARD FROM CANADA AND
SETTLE OVER THE NORTHEAST AND MID-ATLANTIC BY THE END OF THE WEEK.
A PROLONGED STRETCH OF STRONG, EASTERLY, ONSHORE FLOW ON THE
SOUTHERN PERIPHERY OF THE DOME OF HIGH PRESSURE COMBINED WITH THE
INCREASED WAVE ACTION GENERATED BY BOTH IMELDA AND THE REMNANTS OF
HUMBERTO WILL CONTINUE TO LEAD TO SWELLS, HIGH SURF, DANGEROUS RIP
CURRENTS, AND SOME COASTAL FLOODING ALONG MUCH OF THE EAST COAST
THE NEXT SEVERAL DAYS, LASTING LONGEST ALONG THE COAST OF THE
CAROLINAS. ADDITIONALLY, THE MOIST ONSHORE FLOW WILL BRING
REPEATED ROUNDS OF THUNDERSTORMS FIRST TO THE ATLANTIC COAST OF
FLORIDA AND EVENTUALLY EXTENDING FURTHER NORTH ALONG THE COAST OF
GEORGIA AND POSSIBLY AS FAR AS THE CAROLINAS. LOCALLY INTENSE
DOWNPOURS PRODUCING SEVERAL INCHES OF RAIN ARE POSSIBLE, AND AT
LEAST AN ISOLATED RISK OF FLASH FLOODING WILL EXIST FOR THE NEXT
FEW DAYS.
UNSETTLED AND UNSEASONABLY COOL WEATHER WILL CONTINUE FOR PARTS OF
THE PACIFIC NORTHWEST, GREAT BASIN, AND INTERMOUNTAIN WEST THE
NEXT FEW DAYS AS PERSISTENT UPPER-LEVEL TROUGHING AND A COUPLE
FRONTAL SYSTEMS PASS THROUGH THE REGION. MOIST PACIFIC FLOW
COMBINED WITH A SERIES OF SURFACE FRONTS AND UPPER-LEVEL
DISTURBANCES WILL BRING PERIODIC WAVES OF SHOWERS AND
THUNDERSTORMS THROUGH THE END OF THE WEEK. EVEN A LITTLE BIT OF
SNOW COULD MIX IN WITH THE RAIN IN THE HIGHEST ELEVATIONS. IN THE
LOWER ELEVATIONS, SOME OF THE MORE INTENSE SHOWERS AND
THUNDERSTORMS COULD CONTAIN PERIODS OF HEAVIER RAINFALL. WHILE THE
OVERALL THREAT REMAINS LOW, LOCALIZED FLASH FLOODING WILL BE
POSSIBLE, PARTICULARLY FOR PORTIONS OF THE OLYMPICS AND THE
NORTHERN GREAT BASIN TO SIERRA FOOTHILLS VICINITY ON THURSDAY, AND
ACROSS THE NORTHERN ROCKIES INTO THE NORTHERN GREAT BASIN FRIDAY.
THE INCREASED PRESENCE OF CLOUDS AND PRECIPITATION ASSOCIATED WITH
THE PASSING DISTURBANCES AND PERSISTENT UPPER-LEVEL TROUGHING WILL
RESULT IN HIGH TEMPERATURES ROUGHLY 5 TO 15 DEGREES BELOW NORMAL
ACROSS MUCH OF THE WESTERN U.S. THROUGH FRIDAY AND LEADING INTO
THE WEEKEND.
A LARGE AND STRENGTHENING UPPER-LEVEL RIDGE OVER THE CENTRAL U.S.
WILL CONTINUE TO PRODUCE AN EXTENDED PERIOD OF UNSEASONABLY HOT
WEATHER ACROSS THE PLAINS AND MIDWEST THROUGH THE END OF THE WEEK.
THE HOTTEST WEATHER RELATIVE TO CLIMATOLOGY WILL BE CONFINED TO
THE NORTHERN PLAINS AND UPPER MIDWEST, WHERE HIGH TEMPERATURES
WILL SOAR TO BETWEEN 10 AND 20 DEGREES ABOVE NORMAL TODAY AND
THURSDAY, TO BETWEEN 20 AND 30 DEGREES ABOVE NORMAL ON FRIDAY. IN
FACT, SEVERAL PLACES HAVE THE POTENTIAL TO TIE OR BREAK HIGH
TEMPERATURE RECORDS ON FRIDAY. ONE SUCH LOCATION IS MINNEAPOLIS,
MN WITH A FORECAST HIGH OF 90 DEGREES SET TO TIE THE DAILY RECORD
OF 90F SET BACK IN 1997. SAFE TO SAY, IT WILL BE FEELING MUCH MORE
SUMMER-LIKE THAN FALL-LIKE AS WE ROLL THE CALENDAR INTO OCTOBER.
MEANWHILE, THE NOTED HIGH PRESSURE OVER THE EASTERN U.S. WILL
BRING MUCH MORE SEASONABLE TEMPERATURES TO MUCH OF THE REGION
HEADING INTO THE WEEKEND AFTER A WARMER AND MUGGIER START TO THE
WEEK. IN ADDITION, LOWS FORECAST TO DROP INTO THE 30S THURSDAY
MORNING HAVE PROMPTED FROST AND FREEZE-RELATED ADVISORIES ACROSS
PORTIONS OF COASTAL MAINE, INTO THE INTERIOR OF NEW
ENGLAND/UPSTATE NEW YORK, AND SOUTHWARD THROUGH THE
NORTHERN/CENTRAL APPALACHIANS.
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