272
FXUS01 KWBC 212012
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 PM EDT MON APR 21 2025
VALID 00Z TUE APR 22 2025 - 00Z THU APR 24 2025
...MIXED RAIN AND SNOW OVER THE UPPER GREAT LAKES TAPERING OFF AS
LOW PRESSURE SYSTEM MOVES INTO CANADA...
...ROUNDS OF SCATTERED SHOWERS AND POSSIBLY SEVERE THUNDERSTORMS
DEVELOP OVER THE CENTRAL PLAINS BEGINNING LATER ON TUESDAY...
A LOW PRESSURE SYSTEM TRACKING ACROSS THE UPPER GREAT LAKES THIS
MONDAY AFTERNOON IS FORECAST TO MOVE FARTHER INTO SOUTHEASTERN
CANADA THROUGH THE NEXT COUPLE OF DAYS. MIXED RAIN AND WET SNOW
AS WELL AS GUSTY WINDS ACROSS THE UPPER GREAT LAKES WILL GRADUALLY
TAPER OFF THIS EVENING. SHOWERS AND THUNDERSTORMS ASSOCIATED WITH
THE TRAILING COLD FRONT WILL SWEEP ACROSS THE NORTHEAST THROUGH
TONIGHT ALONG WITH GUSTY WINDS. FARTHER SOUTH, ONLY SCATTERED
SHOWERS ARE EXPECTED TO PASS THROUGH THE MID-ATLANTIC TONIGHT.
ACROSS THE DEEP SOUTH, SHOWERS AND THUNDERSTORMS ARE EXPECTED TO
LINGER THROUGH THE NEXT COUPLE OF DAYS AS THE TRAILING FRONT
STALLS ACROSS THE REGION. MOISTURE FROM THE GULF WILL THEN
GRADUALLY STREAM NORTHWARD INTO THE SOUTHERN AND THEN THE CENTRAL
PLAINS THROUGH WEDNESDAY AS SOUTHERLY FLOW STRENGTHENS. ROUNDS OF
SCATTERED SHOWERS AND POSSIBLY SEVERE THUNDERSTORMS CAN BE
EXPECTED TO DEVELOP FROM TIME TO TIME BEGINNING LATER ON TUESDAY
WITH INCREASING FREQUENCY GOING INTO WEDNESDAY AS A LOW PRESSURE
WAVE IS FORECAST TO DEVELOP OVER THE SOUTHERN HIGH PLAINS.
OVER THE NORTHERN ROCKIES, MOUNTAIN SNOW WILL GRADUALLY TAPER OFF
TONIGHT AS AN UPPER-LEVEL TROUGH PASSES THROUGH AND HEADS INTO THE
NORTHERN PLAINS. THIS TROUGH WILL THEN BRING A ROUND OF RAIN
SHOWERS WITH EMBEDDED THUNDERSTORMS TONIGHT INTO TUESDAY ACROSS
THE NORTHERN PLAINS INTO THE UPPER MIDWEST WHERE A WEAK OCCLUDED
CYCLONE PASSES THROUGH. MEANWHILE, MUCH OF THE SOUTHWEST AS WELL
AS FLORIDA WILL REMAIN DRY THROUGH WEDNESDAY. TEMPERATURES WILL
AVERAGE ABOVE NORMAL ACROSS A LARGE PORTION OF THE COUNTRY WHILE
COOLER THAN NORMAL CONDITIONS WILL BE CONFINED TO THE PACIFIC
NORTHWEST AND INTO THE NORTHERN PLAINS.
KONG
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