Prognostic Meteorological Discussion
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FXUS01 KWBC 250338
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
1038 PM EST WED DEC 24 2014

VALID 12Z THU DEC 25 2014 - 12Z SAT DEC 27 2014

***IMPROVING WEATHER FOR THE EASTERN U.S.***

***SNOW FOR THE INTERMOUNTAIN WEST AND ROCKY MOUNTAINS***

***COLDER WEATHER ARRIVING TO MUCH OF THE U.S. BY SATURDAY***

THE MAJOR STORM SYSTEM THAT HAS AFFECTED THE EASTERN U.S. OVER THE
PAST COUPLE OF DAYS IS FORECAST TO EXIT NORTHWARD INTO CANADA BY
CHRISTMAS AFTERNOON, AND THE TRAILING COLD FRONT WILL ALSO MOVE
OFF THE EAST COAST THAT AFTERNOON.  THERE WILL STILL BE SOME
LINGERING SHOWERS NEAR THE EASTERN GREAT LAKES AND NORTHERN NEW
ENGLAND THROUGH CHRISTMAS DAY, BUT THESE SHOULD ALSO DISSIPATE BY
EARLY FRIDAY.  THE AIRMASS COMING IN BEHIND THIS COLD FRONT IS NOT
SIGNIFICANTLY COLDER, SO MILD DECEMBER WEATHER IS FORECAST TO
CONTINUE FOR THE NEXT FEW DAYS.

OVER THE WESTERN U.S., ANOTHER STORM SYSTEM WILL BRING WIDESPREAD
LIGHT SNOW FROM THE PACIFIC NORTHWEST TO THE WESTERN HIGH PLAINS
THROUGH FRIDAY MORNING.  HEAVIER SNOWFALL IS EXPECTED TO OCCUR
OVER THE HIGHER MOUNTAINS OF UTAH, IDAHO, WYOMING, AND COLORADO,
WHERE WINTER STORM WARNINGS ARE CURRENTLY IN EFFECT.  THE COLD
FRONT THAT ACCOMPANIES THIS WINTRY WEATHER WILL BRING NOTICEABLY
COLDER AIR TO MUCH OF THE WESTERN AND CENTRAL STATES, AND THIS
WILL EVENTUALLY END THE RELATIVELY MILD WEATHER OVER THE EASTERN
U.S. JUST BEYOND THE SHORT-RANGE FORECAST PERIOD.

HAMRICK


GRAPHICS AVAILABLE AT WWW.WPC.NCEP.NOAA.GOV
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