049
FXUS01 KWBC 141909
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
308 PM EDT MON APR 14 2025
VALID 00Z TUE APR 15 2025 - 00Z THU APR 17 2025
...MODERATE TO HEAVY SNOW OVER THE WESTERN PORTION OF THE UPPER
PENINSULA OF MICHIGAN FROM MONDAY NIGHT INTO TUESDAY AND
LAKE-ENHANCED SNOW DOWNWIND FROM LAKES ERIE AND ONTARIO TUESDAY
NIGHT INTO WEDNESDAY...
...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
THE CENTRAL APPALACHIANS/MID-ATLANTIC ON MONDAY...
A FRONT EXTENDING FROM THE LOWER GREAT LAKES ACROSS THE OHIO
VALLEY AND THEN OVER THE LOWER MISSISSIPPI VALLEY/SOUTHERN PAINS
WILL MOVE EASTWARD OFF THE EASTERN SEABOARD AND SOUTHWARD TO THE
GULF COAST BY TUESDAY EVENING. THE FRONT WILL CREATE SHOWERS AND
SEVERE THUNDERSTORMS OVER PARTS OF THE OHIO VALLEY TO THE
MID-ATLANTIC. THEREFORE, THROUGH TUESDAY MORNING, THE SPC HAS
ISSUED AN ENHANCED RISK (LEVEL 3/5) OF SEVERE THUNDERSTORMS OVER
PARTS OF THE CENTRAL APPALACHIANS/MID-ATLANTIC. THE HAZARDS
ASSOCIATED WITH THESE THUNDERSTORMS ARE FREQUENT LIGHTNING, SEVERE
THUNDERSTORM WIND GUSTS, HAIL, AND A FEW TORNADOES.
MOREOVER, MODERATE TO HEAVY LAKE-ENHANCED SNOW WILL DEVELOP OVER
THE WESTERN PORTION OF THE UPPER PENINSULA OF MICHIGAN FROM MONDAY
EVENING INTO TUESDAY. SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER
PARTS OF THE NORTHERN MID-ATLANTIC MONDAY EVENING INTO TUESDAY AS
RAIN MOVES INTO PARTS OF THE NORTHEAST.
MEANWHILE, AS THE SYSTEM MOVES FARTHER EASTWARD ON TUESDAY, LIGHT
TO MODERATE LAKE-ENHANCED SNOW WILL DEVELOP DOWNWIND FROM LAKES
ERIE AND ONTARIO AND INTO THE NORTHEAST. UPSLOPE SNOW WILL DEVELOP
OVER PARTS OF THE CENTRAL APPALACHIANS OVERNIGHT TUESDAY INTO
WEDNESDAY MORNING. RAIN WILL ALSO DEVELOP OVER PARTS OF THE OHIO
VALLEY INTO THE NORTHERN MID-ATLANTIC.
IN THE MEANTIME, ON TUESDAY, A FRONT MOVES ONSHORE OVER THE
PACIFIC NORTHWEST AND CONTINUES EASTWARD TO THE NORTHERN PLAINS TO
THE NORTHERN INTERMOUNTAIN REGION AND THEN INTO THE GREAT BASIN BY
WEDNESDAY EVENING. ON WEDNESDAY, LIGHT SNOW DEVELOPS OVER PARTS OF
THE NORTHERN ROCKIES AND RAIN AT LOWER ELEVATIONS. ALSO ON
WEDNESDAY, UPPER-LEVEL ENERGY OFF OF THE CALIFORNIA COAST WILL
MOVE ONSHORE, PRODUCING LIGHT RAIN AND EMBEDDED THUNDERSTORMS OVER
PARTS OF CENTRAL CALIFORNIA INTO THE GREAT BASIN.
ZIEGENFELDER
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