181
FXUS01 KWBC 010752
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
251 AM EST THU FEB 01 2024
VALID 12Z THU FEB 01 2024 - 12Z SAT FEB 03 2024
...HEAVY SNOW OVER PARTS OF THE SIERRA NEVADA MOUNTAINS, LIGHT TO
MODERATE SNOW OVER LOWER GREAT LAKES/NORTHERN NEW ENGLAND, LIGHT
SNOW OVER THE HIGHER ELEVATIONS OF THE WEST...
...THERE IS A SLIGHT RISK OF EXCESSIVE RAINFALL OVER PARTS OF
SOUTHERN CALIFORNIA ON THURSDAY...
...TEMPERATURES WILL BE 15 TO 25 DEGREES ABOVE AVERAGE FROM THE
PLAINS TO THE UPPER/MIDDLE MISSISSIPPI VALLEY...
A FRONT OVER CALIFORNIA AND THE GREAT BASIN WILL MOVE EASTWARD TO
THE SOUTHERN PLAINS BY SATURDAY. A PLUME OF MOISTURE WILL AIM AT
SOUTHERN CALIFORNIA, PRODUCING HEAVY RAIN. THEREFORE, THE WPC HAS
ISSUED A SLIGHT RISK OF EXCESSIVE RAINFALL OVER PARTS OF SOUTHERN
CALIFORNIA FROM THURSDAY INTO FRIDAY MORNING. THE ASSOCIATED HEAVY
RAIN WILL CREATE MAINLY LOCALIZED AREAS OF FLASH FLOODING, WITH
URBAN AREAS, ROADS, SMALL STREAMS, AND BURN SCARS THE MOST
VULNERABLE.
FURTHERMORE, THE MOISTURE WILL ALSO CREATE SNOW OVER PARTS OF
NORTHERN/CENTRAL CALIFORNIA, PRODUCING HEAVY SNOW OVER THE SIERRA
NEVADA MOUNTAINS THROUGH SATURDAY MORNING.
ON FRIDAY, THE THREAT OF EXCESSIVE RAINFALL WILL END OVER
CALIFORNIA. HOWEVER, LIGHTER RAIN WILL CONTINUE OVER THE WEST
COAST THROUGH SATURDAY. HIGHER ELEVATION SNOW AND LOWER ELEVATION
RAIN WILL EXTEND FROM THE NORTHERN INTERMOUNTAIN REGION TO THE
SOUTHWEST OVERNIGHT THURSDAY INTO FRIDAY. OVERNIGHT FRIDAY, SNOW
MOVES INTO THE ROCKIES, CONTINUING INTO SATURDAY.
MEANWHILE, A SHARP UPPER-LEVEL RIDGE WILL DEVELOP OVER THE
NORTHERN PLAINS INTO THE MIDDLE MISSISSIPPI VALLEY. DUE TO THE
RIDGE, TEMPERATURES WILL BE 15 TO 25 DEGREES ABOVE AVERAGE FROM
THE PLAINS TO THE UPPER/MIDDLE MISSISSIPPI VALLEY.
FURTHER, A FRONT OVER THE GREAT LAKES TO THE NORTHERN PLAINS WILL
MOVE EASTWARD TO OFF THE NORTHEAST COAST BY FRIDAY AND SOUTHWARD
TO THE SOUTHEAST BY SATURDAY. ON THURSDAY, THE SYSTEM WILL CREATE
RAIN OVER PARTS OF THE LOWER GREAT LAKES AND LIGHT TO MODERATE
SNOW OVER PARTS OF LOWER GREAT LAKES AND NORTHERN NEW ENGLAND. ON
FRIDAY, LIGHT SNOW WILL LINGER OVER PARTS OF THE LOWER GREAT LAKES
AND THE HIGHER ELEVATIONS OF NEW ENGLAND THROUGH LATE FRIDAY
NIGHT. IN ADDITION, LIGHT RAIN WILL DEVELOP OVER PARTS OF THE
MID-ATLANTIC ON FRIDAY AFTERNOON.
ELSEWHERE, A DEVELOPING UPPER-LEVEL LOW PRESSURE OVER THE SOUTHERN
ROCKIES WILL PULL MOISTURE OUT OF THE WESTERN GULF OF MEXICO
NORTHWARD OVER THE SOUTHERN/CENTRAL PLAINS, PRODUCING SHOWERS AND
THUNDERSTORMS OVER THE REGION FROM FRIDAY INTO SATURDAY.
ZIEGENFELDER
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
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