Prognostic Meteorological Discussion
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FXUS01 KWBC 250750
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
250 AM EST SAT FEB 25 2017

VALID 12Z SAT FEB 25 2017 - 12Z 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 OVER THE PAST COUPLE OF DAYS,
WILL CONTINUE ITS TRACK NORTHEASTWARD ACROSS SOUTHERN CANADA THIS
AFTERNOON AND EVENING.  THE MAIN CONCERN IS NOW HEAVY RAIN AND THE
POTENTIAL FOR STRONG THUNDERSTORMS ALONG AND EAST OF THE
APPALACHIANS, AHEAD OF THE COLD FRONT.  THE GREATEST CONCERN FOR
ANY RUN-OFF OR FLOODING PROBLEMS IS FROM NORTHERN PENNSYLVANIA TO
NORTHERN NEW ENGLAND.  A FEW SEVERE STORMS ARE POSSIBLE FOR
PORTIONS OF THE MID ATLANTIC REGION ON SATURDAY.  THIS FRONT WILL
BRING A RETURN TO MORE SEASONAL TEMPERATURES BY FEBRUARY STANDARDS
FOR A FEW DAYS.

LIGHT TO MODERATE RAIN AND SNOW HAS RETURNED TO THE CALIFORNIA
COAST AS A WEAK DISTURBANCE TRAVERSES SOUTHWARD ALONG THE COAST,
BUT SHOULD BE WEAKENING.  SCATTERED SNOW SHOWERS WILL ALSO OCCUR
IN THE CENTRAL AND NORTHERN ROCKIES THROUGH MUCH OF THE WEEKEND
WITH MAINLY LIGHT AMOUNTS EXPECTED.  ANOTHER STRONGER LOW PRESSURE
SYSTEM IS POISED TO IMPACT THE PACIFIC NORTHWEST BY SUNDAY,
BRINGING YET ANOTHER ROUND OF MODERATE RAIN AND MOUNTAIN SNOW TO
THE REGION.

THE DESERT SOUTHWEST AND THE SOUTHERN PLAINS SHOULD REMAIN SUNNY
TO PARTLY CLOUDY THROUGH SATURDAY.  BY SUNDAY AFTERNOON, RETURN
FLOW FROM THE GULF OF MEXICO WILL ADVECT ENOUGH MOISTURE NORTHWARD
TO GENERATE SCATTERED SHOWERS AND STORMS FROM EASTERN TEXAS TO THE
DEEP SOUTH.

HAMRICK/WIX


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