Prognostic Meteorological Discussion
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FXUS01 KWBC 111958
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
257 PM EST MON DEC 11 2017

VALID 00Z TUE DEC 12 2017 - 00Z THU DEC 14 2017

...CRITICAL FIRE WEATHER CONDITIONS PERSISTING ACROSS SOUTHERN
CALIFORNIA AND ALSO PRESENT FOR THE CENTRAL PLAINS....

...LOCALLY HEAVY LAKE EFFECT SNOWFALL TO CONTINUE DOWNWIND OF THE
GREAT LAKES THROUGH WEDNESDAY MORNING...

...COASTAL STORM TO BRING SNOWY CONDITIONS TO PORTIONS OF THE
NORTHEAST ON TUESDAY...

ANOTHER SURGE OF COLD AIR AND ROUND OF LIGHT SNOW IS EXPECTED
ACROSS THE GREAT LAKES REGION THROUGH TUESDAY AS A CLIPPER SYSTEM
MOVES THROUGH. WINTER STORM WARNINGS AND WINTER WEATHER ADVISORIES
ARE IN EFFECT FOR MICHIGAN, SOUTHEAST WISCONSIN, NORTHERN INDIANA
AND NORTH-CENTRAL OHIO. TEMPERATURES ON TUESDAY WILL AVERAGE 10 TO
15 DEGREES COLDER THAN USUAL FOR WISCONSIN AND MICHIGAN. AREAS
DOWNWIND OF LAKES SUPERIOR AND MICHIGAN WILL HAVE ENHANCED
SNOWFALL ONCE THE SURFACE WINDS TURN NORTHWESTERLY... A LAKE
EFFECT SNOW WARNING IS ALSO IN EFFECT FOR COUNTIES DOWNWIND OF
LAKE ERIE.

AS THE STORM SYSTEM TRACKS TOWARD THE NORTHEAST ON TUESDAY, LIGHT
TO MODERATE SNOW WILL OVERSPREAD UPSTATE NEW YORK INTO INTERIOR
NEW ENGLAND BY EARLY AFTERNOON. AS TUESDAY PROGRESSES, THE LOW
WILL DEEPEN AS IT LIFTS THROUGH THE NORTHEAST. AT THIS TIME, THE
GREATER SNOW ACCUMULATIONS ARE A FORECAST FOR THE HIGHER TERRAIN.
WINTER STORM WARNINGS AND WINTER WEATHER ADVISORIES ARE IN EFFECT
FOR UPSTATE NEW YORK, VERMONT AND MASSACHUSETTS... WHILE A WINTER
STORM WATCH IS IN EFFECT FOR NEW HAMPSHIRE AND MAINE.

FOR THE WEST, WARM AND DRY CONDITIONS WILL CONTINUE AS HIGH
PRESSURE REMAINS ANCHORED OVER THE REGION. ABOVE NORMAL
TEMPERATURES ARE FORECAST FOR A VAST MAJORITY OF THE WEST,
SOUTHWEST AND CENTRAL PLAINS. THE WARM AND DRY CONDITIONS HAVE
INCREASED THE RISK FOR THE SPREAD OF WILDFIRES.  STRONG, GUSTY
SANTA ANA WINDS WILL CONTINUE IN SOUTHERN CALIFORNIA AND WHILE
WIND GUSTS ARE EXPECTED TO WEAKEN BY MID-WEEK, ELEVATED FIRE
WEATHER CONCERNS WILL LINGER ACROSS SOUTHERN CALIFORNIA FOR
ANOTHER COUPLE OF DAYS.


CAMPBELL

GRAPHICS AVAILABLE AT
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
$$





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