WINTER WEATHER ADVISORY
Warning Issue Date: 1209 AM EST WED DEC 09 2009
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...
A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING.
SNOW AND SLEET WILL MOVE FROM SOUTH TO NORTH ACROSS NORTHERN
VIRGINIA NEAR THE BLUE RIDGE...AND ACROSS NORTHERN MARYLAND OVER
THE NEXT SEVERAL HOURS. 1 TO 3 INCHES OF SNOW AND SLEET
ACCUMULATION IS EXPECTED...ESPECIALLY OVER HIGHER ELEVATIONS.
PRECIPITATION WILL TRANSITION GRADUALLY TO RAIN DURING THE
OVERNIGHT HOURS. FREEZING RAIN IS POSSIBLE AT HIGHER ELEVATIONS...
ESPECIALLY IN THE CATOCTINS AND IN EXTREME NORTHERN MARYLAND...
WHERE TEMPERATURES REMAIN BELOW FREEZING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET AND
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.
$$
FLOOD WATCH
Warning Issue Date: 106 PM EST TUE DEC 08 2009
...FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY
MORNING...
THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS EXPANDED
THE
* FLOOD WATCH TO INCLUDE PORTIONS OF NORTH CENTRAL MARYLAND...
VIRGINIA AND NORTHEAST WEST VIRGINIA...INCLUDING THE FOLLOWING
AREAS...IN NORTH CENTRAL MARYLAND...WASHINGTON. IN VIRGINIA...
AUGUSTA...CLARKE...FREDERICK VA...PAGE...ROCKINGHAM...
SHENANDOAH AND WARREN. IN NORTHEAST WEST VIRGINIA...BERKELEY...
JEFFERSON AND MORGAN.
* FROM LATE TONIGHT THROUGH WEDNESDAY MORNING
* A STRONG LOW PRESSURE WILL AFFECT THE AREA TONIGHT. ALTHOUGH
PRECIPITATION MAY BEGIN AS A WINTRY MIX THIS EVENING...WARMER
TEMPERATURES ALOFT WILL CHANGE THE PRECIPITATION TO RAIN
TONIGHT...WITH AN EXTENDED PERIOD OF MODERATE TO HEAVY RAIN
EXPECTED. WIDESPREAD RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE
ANTICIPATED. THE RAIN WILL FURTHER MELT THE EXISTING SNOW ON THE
GROUND IN SOME AREAS... ADDING TO THE RUNOFF. RAINFALL OF THIS
AMOUNT WILL BE CAPABLE OF CAUSING FLOODING OF URBAN
AREAS...SMALL STREAMS...AND OTHER POOR DRAINAGE AND LYING AREAS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.
YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.
$$
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