WINTER STORM WARNING
Warning Issue Date: 425 PM EST THU DEC 17 2009
...WINTER STORM WARNING IN EFFECT FROM NOON FRIDAY TO 7 PM EST
SATURDAY...
THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A WINTER
STORM WARNING FOR A MIXTURE OF SNOW AND SLEET...WHICH IS IN EFFECT
FROM NOON FRIDAY TO 7 PM EST SATURDAY. THE WINTER STORM WATCH IS
NO LONGER IN EFFECT.
BASIS...AN AREA OF LOW PRESSURE IS EXPECTED TO DEVELOP OVER THE
GULF OF MEXICO TONIGHT... THEN TRACK NORTHEAST ALONG THE CAROLINA
COAST FRIDAY NIGHT THROUGH SATURDAY.
PRECIPITATION TYPES AND ACCUMULATION...SNOW AND SLEET ACCUMULATIONS
OF 3 TO 5 INCHES ARE POSSIBLE WITH LOCALLY HIGHER AMOUNTS
POSSIBLE. WITH THE STORM SYSTEM STILL IN THE INITIAL STAGES OF
DEVELOPMENT...THE LOW PRESSURE TRACK REMAINS UNCERTAIN. THE
SMALLEST DEVIATION EAST OR WEST THAN THE CURRENT MODEL
TRACK...COULD RESULT IN HEAVIER OR LESSER AMOUNTS ACROSS THE
WARNING AREA.
TIMING AND DURATION...PRECIPITATION WILL BEGIN AS SNOW ACROSS
THE NORTHWEST AND CENTRAL PIEDMONT...INCLUDING THE PIEDMONT TRIAD
REGION FRIDAY AFTERNOON. THE SNOW WILL CONTINUE THROUGH THE
EVENING AND OVERNIGHT HOURS... POSSIBLY BECOMING HEAVY AT TIMES.
THE SNOW MAY BECOME MIXED WITH SLEET LATE FRIDAY NIGHT AND DURING
THE DAY ON SATURDAY...BEFORE TAPERING OFF SATURDAY EVENING. THERE
IS ALSO THE POTENTIAL FOR A THIN GLAZE OF ICE FROM FREEZING RAIN
ACROSS THE WARNING AREA.
IMPACTS...TRAVELING WILL BECOME TREACHEROUS ACROSS THE WARNING AREA
FRIDAY EVENING THROUGH THE DAY ON SATURDAY...WITH SLICK ICY SPOTS
LIKELY TO DEVELOP ON ELEVATED SURFACES...INCLUDING BRIDGES AND
OVERPASSES. SOME SCATTERED POWER OUTAGES ARE POSSIBLE DUE TO THE
COMBINATION OF FREEZING RAIN AND STRONG WINDS OF 20 TO 30 MPH.
$$
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