STORM SUMMARY NUMBER 3 FOR AUTUMN MID-ATLANTIC TO NORTHEAST U.S.
MAJOR WINTER STORM
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
500 PM EDT FRI OCT 28 2011
 
...A RARE OCTOBER WINTER STORM FOR THE INTERIOR MID-ATLANTIC AND
NORTHEASTERN STATES TONIGHT AND SATURDAY.  HEAVY WET
SNOW...FALLING ON TREES WITH REMAINING FOLIAGE...COULD LEAD TO
MANY DOWNED TREE BRANCHES AND POWER OUTAGES...               
 
WINTER STORM WATCHES HAVE BEEN ISSUED FROM CENTRAL MARYLAND
NORTHWARD INTO CENTRAL MAINE.  WINTER STORM WARNINGS ARE IN EFFECT
FROM NORTHWESTERN VIRGINIA AND EXTENDING INTO INTERIOR SOUTHERN
NEW ENGLAND.  WINTER WEATHER ADVISORIES ARE IN EFFECT FOR PARTS OF
THE EASTERN MID-ATLANTIC.
 
FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV

AT 430 PM EDT...A COLD FRONT EXTENDED FROM JUST OFF THE SOUTH
CAROLINA COAST WESTWARD TO LOW PRESSURE DEVELOPING OVER THE
SOUTHERN GULF COAST STATES.  UNSEASONABLY COLD AIR CONTINUES TO
POUR INTO THE MID-ATLANTIC AND NORTHEASTERN U.S.  AT THE SAME
TIME...PLENTY OF MOISTURE IS EXPECTED TO LIFT NORTHWARD TONIGHT
ALONG THE EAST COAST AND FUEL AN EXPANDING AREA OF MODERATE TO
HEAVY RAIN AND SNOW.


THE SURFACE LOW OVER THE SOUTHERN GULF COAST REGION IS FORECAST TO
LIFT NORTHEASTWARD TO SOUTHERN SOUTH CAROLINA BY LATE FRIDAY
EVENING...AND TO THE NORTH CAROLINA COAST BY SATURDAY MORNING. 
LIGHT PRECIPITATION HAS SPREAD INTO SOUTHWEST VIRGINIA AND MUCH OF
WEST VIRGINIA...AND WILL CONTINUE LIFTING NORTHEASTWARD.  THE
PRECIPITATION IS EXPECTED TO BECOME MORE WIDESPREAD AND HEAVIER
FRIDAY NIGHT...WITH RAIN SPREADING ACROSS MOST OF THE MID-ATLANTIC
AND SNOW DEVELOPING ACROSS MUCH OF THE HIGHER TERRAIN OF THE
CENTRAL APPALACHIANS.  BY SATURDAY MORNING...AS COLDER AIR WORKS
INTO THE REGION...THE SNOW WILL SPREAD TO LOWER ELEVATIONS...WITH
ACCUMULATING SNOW POSSIBLE NORTHWEST OF THE I-95 CORRIDOR...FROM
WASHINGTON D.C. TO NEW YORK CITY.  SNOW SHOULD SPREAD INTO NEW
ENGLAND LATE SATURDAY.  TOTAL SNOWFALL AMOUNTS OF 4 TO 8 INCHES
ARE POSSIBLE FROM THE HIGHER TERRAIN OF VIRGINIA AND WEST VIRGINIA
NORTHEASTWARD THROUGH EASTERN PENNSYLVANIA AND INTO SOUTHERN NEW
ENGLAND.  THE HEAVIEST SNOWFALL AMOUNTS OF 8 TO 10 INCHES ARE
FORECAST TO FALL IN A BAND FROM EXTREME NORTHERN MARYLAND
NORTHEASTWARD THROUGH NORTHERN NEW JERSEY AND INTO WESTERN
MASSACHUSETTS.  LIGHTER SLUSHY SNOW ACCUMULATIONS ARE POSSIBLE FOR
THE MAJOR CITIES OF THE MID-ATLANTIC AND NORTHEAST...INCLUDING
WASHINGTON D.C...BALTIMORE...PHILADELPHIA...NEW YORK CITY...AND
BOSTON.  SOME UNCERTAINTY REMAINS AS TO THE EXACT TRACK OF THE
SURFACE LOW...WHICH WILL DETERMINE EXACTLY WHERE THE HEAVIEST SNOW
FALLS.  HEAVY WET SNOWS ACCUMULATING ON TREES THAT HAVE NOT YET
LOST LEAVES MAY LEAD TO DOWNED TREE BRANCHES AND POWER OUTAGES. 
PLEASE REFER TO PRODUCTS FROM YOUR LOCAL WEATHER FORECAST OFFICE
FOR DETAILS SPECIFIC TO YOUR AREA.

THE NEXT STORM SUMMARY WILL BE ISSUED BY THE HYDROMETEOROLOGICAL
PREDICTION CENTER AT 1100 PM EDT.  PLEASE REFER TO YOUR LOCAL
NATIONAL WEATHER SERVICE OFFICE FOR ADDITIONAL INFORMATION ON THIS
EVENT.

HAMRICK
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