Prognostic Meteorological Discussion
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FXUS01 KWBC 240758
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
257 AM EST FRI FEB 24 2017

VALID 12Z FRI FEB 24 2017 - 12Z SUN FEB 26 2017

...STRONG STORM SYSTEM TO AFFECT THE CENTRAL AND EASTERN U.S.
THROUGH SATURDAY...

MUCH OF THE NATION EAST OF THE MISSISSIPPI RIVER WILL CONTINUE TO
OBSERVE UNSEASONABLY WARM TEMPERATURES THROUGH FRIDAY.  THIS IS
COURTESY OF AN UPPER LEVEL RIDGE AND A STRONG SURGE OF WARM MOIST
AIR FROM THE GULF OF MEXICO AHEAD OF AN APPROACHING COLD FRONT.
FORECAST HIGHS RANGING FROM 15 TO 30 DEGREES ABOVE FEBRUARY
AVERAGES WILL BE POSSIBLE FROM THE DEEP SOUTH TO SOUTHERN NEW
ENGLAND ON FRIDAY.  SOME LOCATIONS COULD EASILY ACHIEVE RECORD
HIGHS BEFORE THE FRONT EXITS THE COAST THIS WEEKEND, WITH READINGS
INTO THE LOW TO MID 80S FOR SOME AREAS ACROSS THE SOUTHEAST STATES.

A STRONG WINTER STORM WILL TRACK FROM THE ROCKIES TO THE UPPER
MIDWEST THROUGH SATURDAY.  A SURFACE LOW CONTINUES TO GAIN
STRENGTH AS IT MOVES ACROSS THE MIDWEST TODAY, AND REACHES LAKE
HURON BY SATURDAY MORNING.  A BAND OF HEAVY SNOW IS EXPECTED NORTH
OF THE SURFACE LOW FROM NORTHERN IOWA TO NORTHERN MICHIGAN, WHERE
BOTH BLIZZARD AND WINTER STORM WARNINGS ARE CURRENTLY IN EFFECT.
SOME AREAS COULD GET 8 TO 12 INCHES OF SNOW BEFORE THE EVENT ENDS
BY FRIDAY NIGHT.  IN THE WARM SECTOR OF THIS STORM SYSTEM, SHOWERS
AND THUNDERSTORMS ARE EXPECTED FRIDAY AND FRIDAY NIGHT FROM THE
OHIO VALLEY TO THE MID-ATLANTIC REGION.  SEVERE THUNDERSTORMS ARE
LIKELY ON FRIDAY ACROSS PORTIONS OF THE OHIO VALLEY AND SOUTHERN
GREAT LAKES, OWING TO FAVORABLE SHEAR AND INSTABILITY.  THE STORM
PREDICTION CENTER HAS ADDITIONAL DETAILS ON THAT.

ELSEWHERE ACROSS THE CONTINENTAL U.S., EXPECT LIGHT TO MODERATE
RAIN TO RETURN TO THE WEST COAST AS A COUPLE OF DISTURBANCES PASS
THROUGH THE REGION.  SCATTERED SNOW SHOWERS ARE LIKELY FOR THE
CENTRAL AND NORTHERN ROCKIES THROUGH SATURDAY WITH MAINLY LIGHT
AMOUNTS EXPECTED.  THE DESERT SOUTHWEST AND THE SOUTHERN PLAINS
SHOULD REMAIN SUNNY TO PARTLY CLOUDY.

HAMRICK/WIX


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