116
FXUS01 KWBC 300733
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
233 AM EST TUE JAN 30 2024
VALID 12Z TUE JAN 30 2024 - 12Z THU FEB 01 2024
...HEAVY SNOW OVER PARTS OF THE SIERRA NEVADA MOUNTAINS ON
WEDNESDAY...
...THERE IS A SLIGHT RISK OF EXCESSIVE RAINFALL OVER PARTS OF
NORTHERN/ CENTRAL CALIFORNIA...
...SNOW OVER PARTS OF THE GREAT LAKES/CENTRAL APPALACHIANS INTO
THE NORTHEAST...
LOW PRESSURE OVER THE UPPER GREAT LAKES WILL MOVE SOUTHEASTWARD TO
THE SOUTHEAST BY WEDNESDAY AND REDEVELOP OVER THE WESTERN ATLANTIC
BY WEDNESDAY EVENING. THE SYSTEM WILL PRODUCE MOSTLY SNOW OVER THE
GREAT LAKES AND RAIN AND SNOW OVER THE OHIO VALLEY. IN ADDITION,
OVERNIGHT TUESDAY, LIGHT SNOW WILL DEVELOP OVER THE HIGHER
ELEVATIONS OF THE CENTRAL APPALACHIANS AND LIGHT RAIN AT LOWER
ELEVATIONS. ALSO, OVERNIGHT TUESDAY, RAIN WILL DEVELOP OVER THE
SOUTHERN APPALACHIANS AND THE MID-ATLANTIC. ALL THE PRECIPITATION
WILL END BY WEDNESDAY EVENING.
MOREOVER, OVERNIGHT WEDNESDAY, A FRONT MOVING OUT OF EAST-CENTRAL
CANADA WILL MOVE INTO THE GREAT LAKES AND NORTHEAST ON THURSDAY.
THE SYSTEM WILL AID IN CREATING LIGHT SNOW OVER PARTS OF UPSTATE
NEW YORK AND NORTHERN NEW ENGLAND WEDNESDAY NIGHT INTO THURSDAY.
MEANWHILE, A PLUME OF MOISTURE WILL MOVE OVER PARTS OF THE PACIFIC
NORTHWEST, PRODUCING AREAS OF LIGHT RAIN OVER THE NORTHWEST ON
TUESDAY. ON WEDNESDAY, A MORE ROBUST PLUME OF MOISTURE WILL MOVE
OVER CALIFORNIA AHEAD OF A FRONT MOVING ONSHORE LATE WEDNESDAY
AFTERNOON INTO THURSDAY. THE MOISTURE WILL CREATE HEAVY RAIN OVER
CALIFORNIA. THEREFORE, THE WPC HAS ISSUED A SLIGHT RISK OF
EXCESSIVE RAINFALL OVER PARTS OF NORTHERN/CENTRAL CALIFORNIA FROM
WEDNESDAY INTO THURSDAY 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. THE SHASTA AND SIERRA NEVADA
MOUNTAINS WILL GET HEAVY SNOW FROM LATE WEDNESDAY MORNING INTO
THURSDAY.
ZIEGENFELDER
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
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