645
FXUS01 KWBC 290733
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
332 AM EDT FRI MAR 29 2024
VALID 12Z FRI MAR 29 2024 - 12Z SUN MAR 31 2024
...HEAVY SNOW OVER PARTS OF THE SIERRA NEVADA MOUNTAINS AND THE
HIGHER ELEVATIONS OF WYOMING, COLORADO, UTAH, AND NORTHERN MAINE...
..LIGHT TO MODERATE SNOW OVER PARTS OF THE UPPER MIDWEST
...THERE IS A SIGHT RISK OF EXCESSIVE RAINFALL OVER PARTS OF
SOUTHERN CALIFORNIA ON FRIDAY AND SATURDAY AND NORTHERN MAINE ON
FRIDAY...
AN UPPER-LEVEL LOW WILL DEVELOP OFF THE NORTHWEST COAST AND MOVE
SOUTHWARD TO OFF SOUTHERN CALIFORNIA BY SUNDAY. THE CIRCULATION
AROUND THE LOW WILL STREAM MOISTURE INLAND OVER PARTS OF SOUTHERN
CALIFORNIA AND OTHER PARTS OF THE WEST. COASTAL RAIN WILL DEVELOP
OVER PARTS OF THE PACIFIC NORTHWEST, AND RAIN/HIGHER-ELEVATION
SNOW WILL SPREAD OVER PARTS OF CALIFORNIA. BY FRIDAY AFTERNOON,
THE FLOW OF MOISTURE WILL CREATE HEAVY RAIN OVER PARTS OF SOUTHERN
CALIFORNIA. THEREFORE, THE WPC HAS ISSUED A SLIGHT RISK (LEVEL
2/4) OF EXCESSIVE RAINFALL OVER PARTS OF SOUTHERN CALIFORNIA
THROUGH SATURDAY 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.
IN ADDITION, THE MOISTURE WILL AID IN CREATING HEAVY SNOW OVER THE
SIERRA NEVADA MOUNTAINS AND THE HIGHER ELEVATIONS OF WYOMING,
COLORADO, AND UTAH THROUGH SUNDAY. MOREOVER, THE HEAVY RAIN WILL
CONTINUE OVER SOUTHERN CALIFORNIA ON SATURDAY. THEREFORE, THE WPC
HAS ISSUED A SLIGHT RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL OVER
PARTS OF SOUTHERN CALIFORNIA ON SATURDAY THROUGH SUNDAY 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, UPPER-LEVEL ENERGY OVER THE NORTHERN TIER STATES WILL
MOVE EASTWARD ACROSS THE GREAT LAKES INTO THE NORTHEAST BY SUNDAY.
THE ENERGY WILL PRODUCE LIGHT TO MODERATE SNOW OVER THE NORTHERN
TIER STATES INTO THE GREAT LAKES THROUGH SUNDAY. ADDITIONALLY,
SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER THE UPPER/MIDDLE
MISSISSIPPI VALLEY AND GREAT LAKES/OHIO VALLEY BY FRIDAY EVENING
INTO SUNDAY. ALONG THE RAIN/SNOW LINE, A FEW POCKETS OF LIGHT
RAIN/FREEZING RAIN WILL DEVELOP OVER PARTS OF THE UPPER
MISSISSIPPI VALLEY AND UPPER GREAT LAKES LATE FRIDAY NIGHT INTO
SATURDAY.
MEANWHILE, LOW PRESSURE OFF THE NORTHEAST COAST WILL MOVE
NORTHWARD INTO EASTERN CANADA BY SATURDAY EVENING. MOISTURE WILL
STREAM ALONG THE NORTHEAST COAST, CREATING HEAVY RAIN ALONG THE
MAINE COAST. THEREFORE, THE WPC HAS ISSUED A SLIGHT RISK (LEVEL
2/4) OF EXCESSIVE RAINFALL OVER PARTS OF THE MAINE COAST 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.
FURTHER, THE ENERGY ASSOCIATED WITH THE LOW WILL HELP PRODUCE
HEAVY SNOW OVER PARTS OF NORTHERN MAINE THROUGH SATURDAY MORNING.
SNOW WILL LINGER OVER NORTHERN MAINE THROUGH SUNDAY.
ZIEGENFELDER
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