749
FXUS01 KWBC 260752
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
252 AM EST FRI JAN 26 2024
VALID 12Z FRI JAN 26 2024 - 12Z SUN JAN 28 2024
..HEAVY RAIN/FREEZING RAIN OVER PARTS OF NORTHERN NEW ENGLAND;
LIGHT RAIN/FREEZING RAIN OVER PARTS OF THE PACIFIC NORTHWEST...
...LIGHT SNOW FOR THE CASCADES AND HIGHER ELEVATION SNOW ACROSS
THE CENTRAL/SOUTHERN ROCKIES AND SOUTHWEST; MODERATE SNOW OVER
NORTHERN NEW ENGLAND...
...THERE IS A SLIGHT RISK OF EXCESSIVE RAINFALL OVER PARTS OF THE
PACIFIC NORTHWEST COAST ON FRIDAY AND THE CENTRAL GULF COAST INTO
THE CENTRAL/SOUTHERN APPALACHIANS AND MID-ATLANTIC ON FRIDAY AND
SATURDAY...
A FRONT EXTENDING FROM THE LOWER GREAT LAKES/MID-ATLANTIC TO THE
CENTRAL GULF COAST ON FRIDAY WILL MOVE OFF THE NORTHEAST COAST,
WHILE A WAVE OF LOW PRESSURE DEVELOPS OVER THE WESTERN GULF COAST
LATE FRIDAY THAT WILL MOVE NORTHEASTWARD TO THE MID-ATLANTIC BY
SUNDAY. WARM AIR AND MOISTURE OVER THE MID-ATLANTIC WILL SURGE
NORTHWARD INTO THE NORTHEAST AS UPPER-LEVEL ENERGY STREAM ACROSS
THE NORTHEAST PRODUCING MODERATE SNOW OVER MAINE AND HEAVY
RAIN/FREEZING RAIN OVER PARTS OF UPSTATE NEW YORK INTO VERMONT/NEW
HAMPSHIRE ON FRIDAY. THE SNOW AND RAIN/FREEZING RAIN WILL END BY
SATURDAY.
FURTHERMORE, MOISTURE FROM THE GULF OF MEXICO WILL FLOW NORTHWARD
OVER THE CENTRAL GULF COAST INTO TENNESSEE VALLEY/SOUTHEAST,
PRODUCING SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN. THEREFORE,
THE WPC HAS ISSUED A SLIGHT RISK OF EXCESSIVE RAINFALL OVER PARTS
OF THE CENTRAL GULF COAST INTO TENNESSEE VALLEY/SOUTHEAST THROUGH
SATURDAY MORNING. THE ASSOCIATED HEAVY RAIN WILL CREATE MAINLY
LOCALIZED AREAS OF FLASH FLOODING, WITH URBAN AREAS, ROADS, AND
SMALL STREAMS THE MOST VULNERABLE.
ON SATURDAY, AS THE WAVE OF LOW PRESSURE MOVES FROM THE LOWER
MISSISSIPPI VALLEY TO THE MID-ATLANTIC, THE AREA OF EXCESSIVE
RAINFALL MOVES NORTHEASTWARD TO CENTRAL APPALACHIANS/MID-ATLANTIC.
THEREFORE, THE WPC HAS ISSUED A SLIGHT RISK OF EXCESSIVE RAINFALL
OVER PARTS OF THE CENTRAL/SOUTHERN APPALACHIANS AND MID-ATLANTIC
FROM SATURDAY INTO SUNDAY MORNING. THE ASSOCIATED HEAVY RAIN WILL
CREATE MAINLY LOCALIZED AREAS OF FLASH FLOODING, WITH URBAN AREAS,
ROADS, AND SMALL STREAMS THE MOST VULNERABLE. MOREOVER, LIGHT SNOW
WILL FALL OVER PARTS OF THE LOWER GREAT LAKES ALONG THE NORTHERN
EDGE OF THE PRECIPITATION SHIELD.
MEANWHILE, A WEAKENING FRONT MOVES OVER THE PACIFIC NORTHWEST ON
FRIDAY. A PLUME OF MOISTURE WILL STREAM INTO PARTS OF THE
NORTHWEST, PRODUCING HEAVY RAIN ALONG PARTS OF THE OREGON AND
NORTHERN CALIFORNIA COAST. THEREFORE, THE WPC HAS ISSUED A SLIGHT
RISK OF EXCESSIVE RAINFALL OVER PARTS OF THE OREGON AND NORTHERN
CALIFORNIA COAST. THE ASSOCIATED HEAVY RAIN WILL CREATE MAINLY
LOCALIZED AREAS OF FLASH FLOODING, WITH URBAN AREAS, ROADS, SMALL
STREAMS, AND BURN SCARS THE MOST VULNERABLE.
ALSO, ON FRIDAY, THE MOISTURE WILL PRODUCE RAIN AND HIGHEST
ELEVATION SNOW OVER PARTS OF THE PACIFIC NORTHWEST INTO THE
NORTHERN INTERMOUNTAIN REGION. THERE WILL BE POCKETS OF
RAIN/FREEZING RAIN OVER PARTS OF THE REGION, WITH A FEW POCKETS OF
RAIN/FREEZING RAIN EXTENDING INTO SATURDAY.
MOREOVER, UPPER-LEVEL ENERGY MOVING ACROSS THE CENTRAL/SOUTHERN
ROCKIES WILL PRODUCE LIGHT SNOW OVER THE AREA ON FRIDAY.
FURTHER, THE THREAT OF EXCESSIVE RAINFALL DECREASES SLIGHTLY ON
SATURDAY. THEREFORE, THE WPC HAS ISSUED A MARGINAL RISK OF
EXCESSIVE RAINFALL OVER PARTS OF NORTHERN CALIFORNIA AND THE
PACIFIC NORTHWEST FROM SATURDAY THROUGH SUNDAY MORNING.
ZIEGENFELDER
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
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