Prognostic Meteorological Discussion
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FXUS01 KWBC 241029
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
529 AM EST TUE JAN 24 2017

VALID 12Z TUE JAN 24 2017 - 12Z THU JAN 26 2017

...A WINTRY MIX OF SNOW, SLEET, AND RAIN/FREEZING RAIN OVER PARTS
OF NEW ENGLAND...

...HEAVY SNOW POSSIBLE FOR PARTS OF THE NORTHERN/CENTRAL PLAINS
INTO PARTS OF THE UPPER/MIDDLE MISSISSIPPI VALLEY...

...HEAVY RAIN OVER PARTS OF SOUTHERN NEW ENGLAND AND NORTHERN
MID-ATLANTIC COAST...

A LOW PRESSURE SYSTEM LOCATED JUST OFFSHORE OF MARYLAND/DELAWARE
WILL CONTINUE TO LIFT NORTHEAST OVER THE NEXT FEW DAYS - REACHING
THE CANADIAN MARITIMES BY THURSDAY. RAIN, POSSIBLY HEAVY AT TIMES,
IS FORECAST FOR THE NORTHERN MID-ATLANTIC/SOUTHERN NORTHEAST
REGION TODAY AND INTO WEDNESDAY MORNING. FROM THE APPALACHIANS TO
MAINE PRECIPITATION WILL LIKELY BE A WINTRY MIX TODAY BEFORE
BECOMING RESTRICTED TO NORTHERN MAINE BY WEDNESDAY MORNING.
SNOW/ICE WILL TAPER OFF OVER THE CENTRAL APPALACHIANS BY THIS
EVENING. MUCH OF THE NORTHEAST HAS WINTER STORM WARNINGS AND
WINTER WEATHER ADVISORIES IN EFFECT.

A STORM SYSTEM EXITING THE ROCKIES WILL SPREAD SNOW AND RAIN
ACROSS THE PLAINS AND INTO THE UPPER MIDWEST/GREAT LAKES REGION AS
IT TRACKS EASTWARD. NUMEROUS WINTER STORM WARNINGS AND WINTER
WEATHER ADVISORIES ARE IN EFFECT FOR THIS SYSTEM FROM WYOMING TO
WISCONSIN. SNOW AND LOWER ELEVATION RAIN OVER THE
SOUTHWEST/SOUTHERN ROCKIES AND SNOW OVER PARTS OF THE
NORTHERN/CENTRAL ROCKIES AND PARTS OF THE GREAT BASIN WILL TAPER
OFF DURING THE OVERNIGHT HOURS TONIGHT. THE SNOW WILL CONTINUE TO
EXPAND EASTWARD TO THE UPPER GREAT LAKES OVERNIGHT TUESDAY WITH
SOME RAIN DEVELOPING OVER PARTS OF THE WESTERN OHIO VALLEY. SNOW
MAY BECOME HEAVY AT TIMES.

HIGH PRESSURE WILL BUILD OVER MUCH OF THE WEST AND LIMIT ONSHORE
FLOW. PRECIPITATION OVER THE STATE OF CALIFORNIA WILL DIMINISH BY
LATE AFTERNOON/TONIGHT. PORTIONS OF THE PACIFIC NORTHWEST ARE
FORECAST TO HAVE A FEW VALLEY RAIN AND MOUNTAIN SNOW SHOWERS.


CAMPBELL

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