The National Weather Service has issued the following weather advisory:

URGENT – WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
223 PM EST SUN DEC 11 2016

MDZ004>006-507-VAZ031-505-WVZ053-120330-
/O.EXB.KLWX.ZR.Y.0004.161212T0500Z-161212T1200Z/
FREDERICK MD-CARROLL-NORTHERN BALTIMORE-NORTHWEST HARFORD-CLARKE-
WESTERN LOUDOUN-JEFFERSON-
223 PM EST SUN DEC 11 2016

…FREEZING RAIN ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM
EST MONDAY…

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS
ISSUED A FREEZING RAIN ADVISORY…WHICH IS IN EFFECT FROM
MIDNIGHT TONIGHT TO 7 AM EST MONDAY.

* HAZARD TYPES…FREEZING RAIN. PRECIPITATION MAY START OUT AS A
BRIEF PERIOD OF SLEET…THEN QUICKLY CHANGE TO FREEZING RAIN AND
CONTINUE THROUGH EARLY MONDAY MORNING.

* ICE ACCUMULATIONS…A TRACE TO ONE-TENTH INCH.

* TIMING…THE PRECIPITATION WILL START BETWEEN MIDNIGHT AND 2 AM
IN THE ADVISORY AREA…THEN CONTINUE AS FREEZING RAIN THROUGH
EARLY MONDAY MORNING.

* IMPACTS…UNTREATED ROADS AND SIDEWALKS WILL BECOME SLICK AND
HAZARDOUS DUE TO ICE.

* WINDS…SOUTH 5 TO 10 MPH.

* TEMPERATURES…LOWER 30S.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR
FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING.