516
FXUS01 KWBC 210808
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 AM EDT TUE OCT 21 2025
VALID 12Z TUE OCT 21 2025 - 12Z THU OCT 23 2025
...CHILLY AND SHOWERY WEATHER ACROSS THE GREAT LAKES WITH
LAKE-EFFECT THUNDERSTORM BANDS POSSIBLE NEAR LAKE ERIE TODAY AND
WEDNESDAY...
..LATE OCTOBER NEAR RECORD WARMTH ACROSS SOUTHERN TEXAS TODAY
MUCH OF THE UNSETTLED WEATHER THROUGH THE NEXT COUPLE OF DAYS WILL
BE FOCUSED ACROSS THE NORTHERN TIER STATES WHERE A PAIR OF LOW
PRESSURE SYSTEMS WILL BE MOVING ACROSS. THE EASTERN SYSTEM WILL
BRING WINDY AND RAINY WEATHER FOR NORTHERN NEW ENGLAND FOR THE
REMAINDER OF TODAY, BEFORE THE SYSTEM LIFTS NORTH INTO THE
CANADIAN MARITIMES TONIGHT AND DISSIPATES. MEANWHILE, THE TWIN
LOW PRESSURE SYSTEM CENTERED NEAR THE CANADIAN BORDER THIS MORNING
WILL BE PRECEDED BY A SWATH OF RAIN PIVOTING ACROSS THE CENTRAL
GREAT LAKES EARLY IN THE MORNING. BEHIND THIS SYSTEM, BLUSTERY
NORTHWESTERLY WINDS WILL MAKE FOR A WINDY DAY TODAY ACROSS THE
NORTHERN PLAINS WITH PASSING SHOWERS. IN ADDITION, COLD AIR ALOFT
WILL ACCOMPANY THE ARRIVAL OF A DIGGING UPPER TROUGH TO TRIGGER
LAKE-ENHANCED/LAKE-EFFECT SHOWERS AND POSSIBLY THUNDERSTORMS WHICH
ARE EXPECTED TO BE MOST INTENSE NEAR AND DOWNWIND OF LAKE ERIE
TODAY AND WEDNESDAY. A COLD FRONT TRAILING FROM THE TWIN SYSTEM
WILL BRING SOME SHOWERS AND THUNDERSTORMS ACROSS THE DEEP SOUTH
TODAY. MEANWHILE, SHOWERS AND EMBEDDED THUNDERSTORMS WILL MOVE
ACROSS THE APPALACHIANS TODAY, REACHING INTO THE MID-ATLANTIC
STATES AND INTO NEW ENGLAND TONIGHT AHEAD OF THE COLD FRONT. THE
TWIN SYSTEM WILL LIKEWISE LIFT NORTHWARD INTO THE CANADIAN
MARITIMES WEDNESDAY NIGHT WITH MUCH OF THE RAIN OVER NEW ENGLAND
TAPERED OFF BY THEN. COLDER AND DRIER WEATHER ALONG WITH GUSTY
WINDS WILL EXPAND FROM THE MIDWEST AND OHIO VALLEY INTO THE
MID-ATLANTIC ON WEDNESDAY AS CHILLY AND SHOWERY WEATHER PERSISTS
ACROSS THE GREAT LAKES INTO THURSDAY.
ACROSS THE SOUTH, NEAR RECORD HIGH TEMPERATURES ARE FORECAST FOR
THIS AFTERNOON FOR SOUTHERN TEXAS WHERE TEMPERATURES WILL ONCE
AGAIN SOAR WELL INTO THE 90S. DUE TO BREEZY AND DRY CONDITIONS,
THERE IS AN ENHANCED RISK OF FIRE WEATHER CONCERNS ACROSS
NORTH-CENTRAL TEXAS TODAY. DESPITE INCREASING WINDS, INFLUX OF
MOISTURE FROM THE GULF SHOULD LIMIT FIRE WEATHER CONCERNS FOR THE
SOUTHERN PLAINS ON WEDNESDAY. ACROSS THE NORTHWEST, DRY WEATHER
WILL PREVAIL BEFORE AN INCOMING, THOUGH WEAKENING, COLD FRONT
REACHES THE COASTAL SECTIONS BY WEDNESDAY NIGHT. MEANWHILE,
CHANCE OF SHOWERS AND THUNDERSTORMS WILL GRADUALLY DECREASE ACROSS
THE SUNSHINE STATE AS THE TRAILING COLD FRONT FROM THE EASTERN
TWIN SYSTEM WEAKENS WITH TIME.
KONG/ROTH
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