WINTER WEATHER ADVISORY
Warning Issue Date: 1017 PM EST THU DEC 17 2009
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO
7 PM EST SATURDAY...
A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO
7 PM EST SATURDAY.
BASIS...AN AREA OF LOW PRESSURE IN THE GULF OF MEXICO WILL TRACK
NORTHEAST ALONG THE CAROLINA COAST FRIDAY NIGHT THROUGH SATURDAY.
PRECIPITATION TYPES AND ACCUMULATION...SNOW AND SLEET
ACCUMULATIONS OF 1 TO 2 INCHES ARE POSSIBLE...WITH AN ADDITIONAL
COATING OF ICE FROM FREEZING RAIN ALSO POSSIBLE. WITH THE STORM
SYSTEM STILL IN THE INITIAL STAGES OF DEVELOPMENT...THE TRACK OF
THE LOW PRESSURE SYSTEM REMAINS UNCERTAIN. THE SMALLEST DEVIATION
EAST OR WEST FROM THE CURRENT FORECAST TRACK...COULD RESULT IN
HEAVIER OR LESSER AMOUNTS OF SNOW OR ICE ACROSS THE ADVISORY
AREA.
TIMING AND DURATION...PRECIPITATION WILL BEGIN AS SNOW ACROSS THE
NORTHWEST AND CENTRAL PIEDMONT...INCLUDING THE TRIANGLE REGION
FRIDAY AFTERNOON. THE PRECIPITATION MAY BECOME A MIXTURE OF
SLEET... FREEZING RAIN...OR RAIN FRIDAY NIGHT...BEFORE ENDING AS
RAIN... FREEZING RAIN OR FREEZING DRIZZLE BY SATURDAY EVENING.
IMPACTS...TRAVELING WILL BECOME TREACHEROUS ACROSS THE ADVISORY
AREA FRIDAY AFTERNOON THROUGH THE DAY ON SATURDAY...WITH SLICK
ICY SPOTS DEVELOPING FIRST ON ELEVATED SURFACES...INCLUDING
BRIDGES AND OVERPASSES... BEFORE ALL ROAD SURFACES ARE IMPACTED
LATER IN THE DAY FRIDAY. SOME POWER OUTAGES MAY OCCUR DUE TO THE
COMBINATION OF FREEZING RAIN AND STRONG WINDS OF 20 TO 30 MPH.
$$
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