URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 907 PM EST WED JAN 23 2013 DCZ001-MDZ004>006-009>011-013-014-VAZ042-052>056-501-502-241015- /O.CON.KLWX.WW.Y.0004.130124T0500Z-130124T1400Z/ DISTRICT OF COLUMBIA-FREDERICK MD-CARROLL-NORTHERN BALTIMORE- MONTGOMERY-HOWARD-SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL- LOUDOUN-PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX- ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA- NORTHERN FAUQUIER-SOUTHERN FAUQUIER-
INCLUDING THE CITIES OF...WASHINGTON...FREDERICK...WESTMINSTER... GAITHERSBURG...COLUMBIA...
BALTIMORE...ANNAPOLIS...LEESBURG... MANASSAS...MANASSAS PARK...FAIRFAX...ALEXANDRIA...FALLS CHURCH... FREDERICKSBURG...WARRENTON
907 PM EST WED JAN 23 2013
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EST THURSDAY...
* PRECIPITATION TYPE...SNOW
* ACCUMULATIONS...AROUND AN INCH.
* TIMING...OVERNIGHT INTO EARLY THURSDAY MORNING.
* TEMPERATURES...UPPER TEENS AND LOWER 20S.
* WINDS...NORTHEAST 5 TO 10 MPH OVERNIGHT BECOMING NORTH 10 TO 20 MPH THURSDAY MORNING.
* IMPACTS...UNTREATED SURFACES WILL BECOME SNOW COVERED AND SLIPPERY.
SNOW COVERED SURFACES WILL REMAIN SLIPPERY THROUGH THE MORNING RUSH.
PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.