Prognostic Meteorological Discussion
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000
FXUS01 KWBC 241959
PMDSPD

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

VALID 00Z SAT FEB 25 2017 - 00Z MON FEB 27 2017

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

...MORE PRECIPITATION EXPECTED FOR THE PACIFIC NORTHWEST AND WEST
COAST THIS WEEKEND...

THE STRONG SURFACE LOW THAT LED TO A WIDESPREAD WINTER STORM FROM
THE ROCKIES TO THE CENTRAL PLAINS TODAY AND YESTERDAY, WILL
CONTINUE ITS TRACK NORTHEASTWARD ACROSS THE GREAT LAKES THIS
EVENING AND OVERNIGHT, PULLING NORTHWARD INTO EASTERN CANADA ON
SATURDAY. AS SNOW TAPERS OFF ON THE BACK EDGE OF THE LOW
OVERNIGHT, THE MAIN CONCERN THEN TURNS TO THE HEAVY RAIN AND THE
POTENTIAL FOR THUNDERSTORMS JUST EAST OF THE MISSISSIPPI RIVER
OVERNIGHT. RAIN AND THUNDERSTORMS WILL CONTINUE INTO THE MIDDLE
ATLANTIC AND NEW ENGLAND, AS WELL AS PORTIONS OF THE SOUTHEAST
THROUGH THE DAY SATURDAY.

THE STORM PREDICTION CENTER HAS AN ENHANCED RISK FOR SEVERE
THUNDERSTORMS FROM LOWER MICHIGAN SOUTHWARD INTO TENNESSEE FOR
THIS EVENING THROUGH THE OVERNIGHT, DUE TO FAVORABLE SHEER AND
INSTABILITY JUST AHEAD OF THE APPROACHING SURFACE COLD FRONT.
PLEASE REFER TO THE STORM PREDICTION CENTER`S WEBSITE FOR FURTHER
DETAILS. A FEW SEVERE STORMS CANNOT BE RULED OUT FOR PORTIONS OF
THE LOWER GREAT LAKES AND MID ATLANTIC ON SATURDAY AS WELL.

LIGHT TO MODERATE RAIN AND SNOW HAS RETURNED TO PORTIONS OF THE
WEST COAST AS A WEAK DISTURBANCE TRAVERSES SOUTHWARD ALONG THE
COAST, BUT SHOULD BE WINDING DOWN THROUGHOUT THE
EVENING/OVERNIGHT. WINTER STORM WARNINGS AND WINTER WEATHER
ADVISORIES ARE IN EFFECT, WITH SOME CONTINUING INTO THE OVERNIGHT
TO ACCOUNT FOR ADDITIONAL LIGHT SNOW ACCUMULATIONS. SCATTERED SNOW
SHOWERS WILL ALSO OCCUR IN THE CENTRAL AND NORTHERN ROCKIES
THROUGH MUCH OF THE WEEKEND WITH MAINLY LIGHT AMOUNTS EXPECTED.
ANOTHER LOW PRESSURE SYSTEM IS POISED TO IMPACT THE PACIFIC
NORTHWEST LATE IN THE WEEKEND/BEGINNING OF THE WORK WEEK, BRINGING
YET ANOTHER ROUND OF MODERATE RAIN AND SNOW TO THE REGION. THE
DESERT SOUTHWEST AND THE SOUTHERN PLAINS SHOULD REMAIN SUNNY TO
PARTLY CLOUDY THROUGH SATURDAY.

HAMRICK/WIX


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