902
FXUS01 KWBC 111857
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
156 PM EST MON DEC 11 2023
VALID 00Z TUE DEC 12 2023 - 00Z THU DEC 14 2023
...LAKE-EFFECT SNOW DOWNWIND FROM THE GREAT LAKES THROUGH
WEDNESDAY, WITH THE HEAVIEST AMOUNTS DOWNWIND FROM LAKE ONTARIO...
..LIGHT SNOW OVER PARTS OF THE NORTHERN/CENTRAL ROCKIES
..MOISTURE WILL RETURN TO THE SOUTHERN PLAINS BY WEDNESDAY
IN THE WAKE OF THE EAST COAST STORM, LAKE-EFFECT SNOW WILL DEVELOP
DOWNWIND FROM THE GREAT LAKES THROUGH WEDNESDAY. THE HEAVIEST SNOW
WILL BE DOWNWIND FROM LAKE ONTARIO ON TUESDAY.
FURTHER, A FRONT EXTENDING FROM THE UPPER MISSISSIPPI VALLEY TO
THE CENTRAL ROCKIES WILL MOVE EASTWARD TO THE NORTHEAST COAST BY
WEDNESDAY. THE WEAK FRONT WILL PRODUCE LAKE-ENHANCED SNOW OVER
LAKE SUPERIOR AND ADJACENT LAKESHORE THROUGH TUESDAY AFTERNOON.
MEANWHILE, UPPER-LEVEL ENERGY OVER THE NORTHWEST WILL MOVE
SOUTHEASTWARD TO THE SOUTHWEST, DEVELOPING AN UPPER-LEVEL LOW BY
WEDNESDAY AFTERNOON. THE ENERGY WILL TRIGGER LIGHT SNOW OVER THE
NORTHERN/CENTRAL ROCKIES THROUGH WEDNESDAY MORNING. LIGHT SNOW
WILL DEVELOP ON WEDNESDAY OVER PARTS OF THE CENTRAL/SOUTHERN
ROCKIES.
MOREOVER, HIGH PRESSURE OVER THE LOWER MISSISSIPPI VALLEY MOVES
EASTWARD TO THE SOUTHEAST BY TUESDAY EVENING. ON THE WEST SIDE OF
THE HIGH, MOISTURE FROM THE WESTERN GULF OF MEXICO WILL START TO
STREAM NORTHWARD OVER THE SOUTHERN PLAINS, PRODUCING LIGHT RAIN
OVER PARTS OF THE WESTERN GULF COAST/SOUTHERN PLAINS OVERNIGHT
TUESDAY INTO WEDNESDAY. IN ADDITION, CIRCULATION AROUND THE
DEVELOPING UPPER-LEVEL LOW WILL AID IN DRAWING MORE MOISTURE FOR
THE GULF OF MEXICO, WHICH WILL INCREASE THE RAIN OVER THE SOUTHERN
PLAINS ON WEDNESDAY.
ZIEGENFELDER
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