894
FXUS01 KWBC 221935
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
235 PM EST SUN DEC 22 2024
VALID 00Z MON DEC 23 2024 - 00Z WED DEC 25 2024
...LIGHT TO MODERATE SNOW OVER PARTS OF THE LOWER PENINSULA OF
MICHIGAN SUNDAY NIGHT INTO MONDAY; LIGHT TO MODERATE SNOW OVER THE
NORTHEAST MONDAY NIGHT INTO TUESDAY...
...LIGHT RAIN/FREEZING RAIN OVER PARTS OF THE NORTHERN PLAIN,
UPPER MISSISSIPPI VALLEY, GREAT LAKES, AND OHIO VALLEY ON SUNDAY
EVENING INTO MONDAY; LIGHT PATCHY RAIN/FREEZING RAIN OVER PARTS OF
PENNSYLVANIA AND NORTH CAROLINA ON MONDAY EVENING INTO TUESDAY...
...TEMPERATURES WILL BE 10 TO 20 DEGREES BELOW AVERAGE OVER THE
NORTHEAST AND MID-ATLANTIC...
HIGH PRESSURE OVER UPSTATE NEW YORK ON SUNDAY WILL MOVE EASTWARD
TO OFF THE NEW ENGLAND COAST BY TUESDAY. THE HIGH PRESSURE WILL
BRING TEMPERATURES 10 TO 20 DEGREES BELOW AVERAGE OVER THE
NORTHEAST AND MID-ATLANTIC.
MOREOVER, A WAVE OF LOW PRESSURE OVER THE UPPER MIDWEST ON SUNDAY
WILL MOVE EASTWARD OFF THE NORTHEAST COAST BY TUESDAY EVENING. THE
SYSTEM WILL PRODUCE LIGHT SNOW OVER PARTS OF THE NORTHERN PLAINS
ON SUNDAY EVENING. ALONG THE RAIN/SNOW LINE, AREAS OF LIGHT
RAIN/FREEZING RAIN WILL DEVELOP OVER PARTS OF THE REGION THROUGH
MONDAY NIGHT. ON SUNDAY EVENING INTO MONDAY, THE STORM WILL CREATE
LIGHT TO MODERATE SNOW OVER PARTS OF THE NORTHERN PORTION OF THE
LOWER PENINSULA OF MICHIGAN. THE SNOW WILL WIND DOWN OVER MICHIGAN
ON MONDAY EVENING INTO TUESDAY. EARLY ON MONDAY MORNING, RAIN WILL
DEVELOP OVER PARTS OF THE OHIO, MIDDLE/LOWER MISSISSIPPI VALLEYS,
AND SOUTHERN PLAINS. FURTHER, ALONG THE RAIN/SNOW LINE, POCKETS OF
RAIN/FREEZING RAIN WILL DEVELOP OVER PARTS OF THE GREAT LAKES AND
UPPER MISSISSIPPI VALLEY.
OVERNIGHT MONDAY, AS THE WAVE OF LOW PRESSURE MOVES INTO THE
NORTHEAST, LIGHT TO MODERATE SNOW WILL DEVELOP OVER THE REGION.
RAIN WILL DEVELOP ALONG THE SOUTHERN EDGE OF THE PRECIPITATION
SHIELD OVER PARTS OF THE NORTHERN MID-ATLANTIC. ON TUESDAY
MORNING, ALONG THE RAIN/SNOW LINE, POCKETS OF RAIN/FREEZING RAIN
WILL DEVELOP.
IN ADDITION, ON MONDAY, RETURN FLOW OFF THE GULF OF MEXICO WILL
STREAM MOISTURE OVER THE SOUTHERN PLAINS, PRODUCING SHOWERS AND
THUNDERSTORMS OVERNIGHT, MONDAY THROUGH TUESDAY. SIMILARLY,
MOISTURE OFF THE ATLANTIC WILL STREAM NORTHWARD OVER THE SOUTHERN
MID-ATLANTIC, PRODUCING LIGHT RAIN OVER THE AREA MONDAY EVENING
INTO TUESDAY. EARLY ON TUESDAY MORNING, A FEW POCKETS OF
RAIN/FREEZING RAIN WILL DEVELOP OVER PARTS OF NORTH CAROLINA.
MEANWHILE, ON SUNDAY, MOISTURE ASSOCIATED WITH A DYING FRONT ALONG
THE WEST COAST WILL CREATE LIGHT RAIN, HIGHER-ELEVATION SNOW OVER
PARTS OF THE PACIFIC NORTHWEST, AND LIGHT RAIN OVER NORTHERN
CALIFORNIA. AS THE MOISTURE MOVES FARTHER INLAND, LIGHT SNOW WILL
DEVELOP OVER PARTS OF THE NORTHERN INTERMOUNTAIN REGION OVERNIGHT
SUNDAY INTO MONDAY.
OVERNIGHT MONDAY INTO TUESDAY, A FRONT OVER THE EASTERN PACIFIC
WILL MOVE ONSHORE OVER THE WEST COAST AND INTO THE GREAT
BASIN/SOUTHERN CALIFORNIA BY TUESDAY AFTERNOON. THE SYSTEM WILL
BRING MORE MOISTURE ONSHORE, PRODUCING LIGHT RAIN OVER THE PACIFIC
NORTHWEST AND NORTHERN CALIFORNIA. AS THE FRONT PASSES, RAIN WILL
TURN OVER TO SNOW OVER PARTS OF THE HIGHER ELEVATIONS OF THE
NORTHWEST AND NORTHERN/CENTRAL CALIFORNIA ON TUESDAY.
ZIEGENFELDER
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