755
FXUS01 KWBC 011946
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
245 PM EST SAT FEB 01 2025
VALID 00Z SUN FEB 02 2025 - 00Z TUE FEB 04 2025
...HEAVY SNOW ACROSS PARTS OF NORTHERN CALIFORNIA/PACIFIC
NORTHWEST TO THE NORTHERN ROCKIES...
...THERE IS A SLIGHT RISK OF EXCESSIVE RAINFALL OVER PARTS OF
NORTHERN/CENTRAL CALIFORNIA...
...LIGHT TO MODERATE SNOW FROM THE GREAT LAKES TO THE NORTHEAST
AND AREAS OF WINTERY MIX FROM WISCONSIN TO PENNSYLVANIA...
UPPER-LEVEL ENERGY AND MOISTURE FROM THE PACIFIC WILL STREAM INTO
PARTS OF THE NORTHWEST AND CALIFORNIA. A PLUME OF MOISTURE WILL
STREAM INTO NORTHERN/CENTRAL CALIFORNIA, PRODUCING HEAVY RAIN
THROUGH MONDAY. THEREFORE, THE WPC HAS ISSUED A SLIGHT RISK (LEVEL
2/4) OF EXCESSIVE RAINFALL OVER PARTS OF NORTHERN/CENTRAL
CALIFORNIA EACH DAY THROUGH MONDAY EVENING. THE ASSOCIATED HEAVY
RAIN WILL CREATE MAINLY LOCALIZED AREAS OF FLASH FLOODING, WITH
URBAN AREAS, ROADS, SMALL STREAMS, NARROW CANYONS/GULLIES, AND
BURN SCARS THE MOST VULNERABLE.
IN ADDITION, THE MOISTURE AND ENERGY WILL PRODUCE HEAVY SNOW OVER
PARTS OF NORTHERN CALIFORNIA/PACIFIC NORTHWEST INTO THE NORTHERN
ROCKIES, LIKEWISE THROUGH MONDAY. THE HEAVIEST SNOWFALL TOTALS
WILL BE NEAR OR ABOVE 48 INCHES IN THE ROCKIES.
MEANWHILE, LOW PRESSURE AND ASSOCIATED FRONT OVER PARTS OF THE
NORTHERN PLAINS WILL MOVE EASTWARD TO SOUTHEASTERN CANADA BY
MONDAY. BY SATURDAY EVENING, THE SYSTEM WILL PRODUCE LIGHT SNOW
OVER PARTS OF THE UPPER MISSISSIPPI VALLEY/UPPER GREAT LAKES. RAIN
WILL ALSO DEVELOP OVER PARTS OF THE MIDDLE MISSISSIPPI VALLEY. BY
SUNDAY, ALONG THE RAIN/SNOW LINE, POCKETS OF RAIN/FREEZING RAIN
WILL DEVELOP OVER PARTS OF THE UPPER MIDWEST INTO THE OHIO VALLEY.
BY SUNDAY EVENING, SNOW AND RAIN WILL MOVE INTO THE LOWER GREAT
LAKES/NORTHEAST ALONG WITH POCKETS OF RAIN/FREEZING RAIN OVER THE
RAIN/SNOW LINE OVER PARTS OF NEW YORK STATE AND PENNSYLVANIA.
MOREOVER, THE LIGHT SNOW AND RAIN WILL CONTINUE OVER PARTS OF THE
NORTHEAST THROUGH MONDAY EVENING. ADDITIONALLY, LIGHT SNOW WILL
DEVELOP OVER PARTS OF THE NORTHERN HIGH PLAINS TO THE UPPER GREAT
LAKES OVERNIGHT SUNDAY, TAPERING OFF BY MONDAY MORNING.
ZIEGENFELDER
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