Prognostic Meteorological Discussion
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000
FXUS01 KWBC 272046
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
342 PM EST TUE JAN 27 2015

VALID 00Z WED JAN 28 2015 - 00Z FRI JAN 30 2015

...POWERFUL WINTER STORM TO CONTINUE IMPACTING THE NEW ENGLAND...

...WELL ABOVE NORMAL TEMPERATURES TO PREVAIL OVER THE CENTRAL
U.S...


A POWERFUL WINTER STORM CONTINUES TO IMPACT NEW ENGLAND WITH VERY
HEAVY SNOWFALL AND STRONG WINDS. BLIZZARD CONDITIONS ARE ONGOING
ACROSS PORTIONS OF COASTAL NEW ENGLAND WITH HEAVY SNOW AND WIND
GUSTS IN EXCESS OF 35 MPH. THESE CONDITIONS ARE LIKELY TO BEGIN
WINDING DOWN THIS EVENING IN SOUTHERN NEW ENGLAND BUT PERSISTING
INTO TOMORROW MORNING ACROSS DOWN EAST MAINE. SNOWFALL TOTALS
COULD NEAR 3 FEET IN SOME LOCATIONS WITH BLOWING AND DRIFTING SNOW
CONTINUING TO IMPACT VISIBILITY AND ROADS EVEN AFTER SNOWFALL
COMES TO AN END TOMORROW.

PERSISTENT DOWNSLOPING FLOW IN THE LEE OF THE ROCKY MOUNTAIN CHAIN
WILL PROVIDE AMPLE WARMTH TO THE GREAT PLAINS. TEMPERATURES WILL
BE WELL ABOVE NORMAL TOMORROW BEFORE A COLD FRONT BRINGS SOME
CHANGES TO THE CENTRAL U.S. BY THURSDAY. TEMPERATURES WILL BRIEFLY
RETURN TO NEAR NORMAL BUT WARMTH WILL RETURN TO THE NORTHERN
PLAINS WITH MORE DOWNSLOPING FLOW BY THE END OF THE PERIOD.

A CLOSED UPPER LOW PREVIOUSLY OVER THE SUBTROPICAL EAST PACIFIC
HAS EVOLVED INTO AN OPEN WAVE WHILE LIFTING INTO SOUTHERN
CALIFORNIA. THIS HAS SPREAD A BROAD REGION OF LIGHT TO MODERATE
RAIN TO THE DESERT SOUTHWEST WHICH IS WELL NEEDED GIVEN THE
PERSISTENT DROUGHT CONCERNS. THROUGHOUT THE PERIOD, EXPECT THIS
SHIELD OF PRECIPITATION TO ADVANCE NORTH AND EAST SPREADING
RAINFALL INTO THE CENTRAL GREAT BASIN AND EVENTUALLY INTO THE
CENTRAL ROCKIES. THE SUBTROPICAL ORIGIN OF THE SYSTEM SHOULD KEEP
MUCH OF THE REGION AS RAIN EXCEPT FOR THE HIGHER ELEVATIONS OF THE
WYOMING TETONS AND SECTIONS OF WASATCH.

ELSEWHERE, AN ARCTIC BOUNDARY SINKING SOUTHWARD FROM CENTRAL
CANADA WILL SPREAD A BAND OF LIGHT TO MODERATE SNOW TO THE UPPER
MIDWEST/GREAT LAKES REGION WEDNESDAY EVENING INTO THE FOLLOWING
DAY. SOME FREEZING RAIN WILL BE POSSIBLE FROM SOUTHERN MINNESOTA
TO NORTHERN OHIO OVERNIGHT WEDNESDAY INTO THURSDAY MORNING.


KREKELER/RUBIN-OSTER


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





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