WINTER STORM WATCH
Warning Issue Date: 356 AM EST MON DEC 07 2009
...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
WEDNESDAY MORNING...
A WINTER STORM WATCH REMAINS IN EFFECT TONIGHT THROUGH WEDNESDAY
MORNING FOR COUNTIES ALONG AND WEST OF THE BLUE RIDGE MOUNTAINS
AND FOR THE FAR NORTHWESTERN SUBURBS OF THE WASHINGTON AND
BALTIMORE METROPOLITAN AREAS.
PRECIPITATION IS EXPECTED TO BEGIN TUESDAY AFTERNOON ACROSS THE
POTOMAC HIGHLANDS AND CENTRAL SHENANDOAH VALLEY AS A PERIOD OF
SNOW...MOVING NORTH TO THE PENNSYLVANIA BORDER EARLY TUESDAY
EVENING. PRECIPITATION IS EXPECTED TO MIX WITH SLEET AND TO
BECOME HEAVIER TUESDAY EVENING BEFORE CHANGING TO RAIN BY MID-
MORNING WEDNESDAY.
TEMPERATURES AT THE SURFACE WILL STAY BELOW FREEZING...SO RAIN
THAT FALLS WILL FREEZE ON IMPACT. FREEZING RAIN IS EXPECTED TO
CONTINUE THROUGH TUESDAY NIGHT BEFORE WARMER AIR ARRIVES
WEDNESDAY MORNING.
ICE ACCUMULATION UP TO ONE-QUARTER INCH IS POSSIBLE. THE HIGHEST
ACCUMULATIONS ARE EXPECTED ACROSS THE BLUE RIDGE MOUNTAINS...
SHENANDOAH VALLEY...AND THE POTOMAC AND ALLEGHENY HIGHLANDS.
A WINTER STORM WATCH MEANS THAT THERE IS A POTENTIAL FOR
SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT
TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS AND REMAIN ALERT
FOR SUBSEQUENT WARNINGS FROM THE NATIONAL WEATHER SERVICE.
$$
LASORSA/KRAMAR
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