Prognostic Meteorological Discussion
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FXUS01 KWBC 181942
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
241 PM EST THU DEC 18 2014

VALID 00Z FRI DEC 19 2014 - 00Z SUN DEC 21 2014


...TWO MORE ROUNDS OF RAIN AND SNOW FOR NORTHERN CALIFORNIA AND
THE PACIFIC NORTHWEST...

THE WET PATTERN THAT BEGAN ALONG THE WEST COAST WITH THE TURN OF
THE CALENDAR FROM NOVEMBER TO DECEMBER SHOWS NO SIGN OF ABATING IN
THE NEXT FEW DAYS, WITH TWO VIGOROUS FRONTAL SYSTEMS SPREADING
MORE SOAKING RAINS AND MOUNTAIN SNOWS ACROSS MUCH OF THE FAR WEST.
EAST OF THE ROCKIES, SIGNIFICANT PRECIPITATION SHOULD BE CONFINED
TO THE GULF STATES, WHERE HEAVY RAINS ARE LIKELY AS A WAVE OF LOW
PRESSURE TRACKS EASTWARD ALONG THE NORTHERN COAST OF THE GULF OF
MEXICO. SEASONABLE TEMPERATURES ARE EXPECTED ACROSS THE NORTHERN
GREAT PLAINS AND MUCH OF THE MIDWEST AS HIGH PRESSURE BUILDS, WITH
THE BEST BET FOR ANY SNOW IN THE FORM OF SNOW SHOWERS OFF THE
LAKES INTO EARLY FRIDAY.


CISCO


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