953
FXUS01 KWBC 151955
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
254 PM EST SAT DEC 15 2018
VALID 00Z SUN DEC 16 2018 - 00Z TUE DEC 18 2018
...HEAVY RAIN POSSIBLE FOR THE OLYMPIC PENINSULA AND CENTRAL
CALIFORNIA...
...SNOW FOR THE CASCADES, NORTHERN INTERMOUNTAIN REGION, AND
SIERRAS...
..SNOW FOR PARTS OF THE NORTHEAST AND RAIN/FREEZING RAIN
A STORM OVER THE TENNESSEE VALLEY WILL MOVE ROUGHLY NORTHEASTWARD
TO OFF THE NEW ENGLAND COAST BY MONDAY. THE SYSTEM WILL PRODUCE
RAIN FROM PARTS OF THE TENNESSEE VALLEY/OHIO VALLEY EASTWARD TO
THE MID-ATLANTIC/SOUTHEAST THAT WILL MOVE OFF THE SOUTHEAST COAST
OVERNIGHT SATURDAY. THE RAIN WILL LIFT INTO PARTS OF THE
NORTHEAST WITH POCKETS OF RAIN/FREEZING RAIN STARTING OVERNIGHT
SATURDAY, TOO, AND THE RAIN/FREEZING RAIN ENDING BY SUNDAY
EVENING. SNOW WILL DEVELOP OVER PARTS OF THE NORTHERN
APPALACHIANS ON SUNDAY AFTERNOON THAT WILL MOVE INTO PARTS OF
NORTHERN NEW ENGLAND BY MONDAY MORNING. MOST OF THE RAIN WILL END
OVERNIGHT SUNDAY OVER THE MID-ATLANTIC WHILE CONTINUING OVER PARTS
OF SOUTHERN NEW ENGLAND INTO MONDAY.
MEANWHILE, MOISTURE AHEAD OF THE NEXT PACIFIC FRONT WILL AID IN
DEVELOPING RAIN OVER PARTS OF THE NORTHERN CALIFORNIA COAST AND
THE PACIFIC NORTHWEST COAST THAT WILL SLOWLY MOVE INLAND OVERNIGHT
SATURDAY WITH SNOW DEVELOPING OVER PARTS OF CASCADES BY SUNDAY
MORNING. OVERNIGHT SUNDAY, SNOW WILL MOVE INTO PARTS OF THE
NORTHERN INTERMOUNTAIN REGION. ALSO OVERNIGHT SUNDAY, RAIN WILL
MOVE INTO CENTRAL CALIFORNIA WITH SNOW DEVELOPING OVER THE HIGHEST
ELEVATIONS OF THE SIERRAS, CONTINUING INTO MONDAY. ADDITIONALLY,
UPPER-LEVEL ENERGY OVER NORTHWESTERN MEXICO WILL MOVE
NORTHEASTWARD INTO THE SOUTHERN ROCKIES BY MONDAY. THE ENERGY
WILL AID IN DEVELOPING RAIN OVER PARTS OF WESTERN TEXAS LATE
SUNDAY NIGHT INTO MONDAY.
ZIEGENFELDER
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