WINTER STORM WARNING
Warning Issue Date: 1146 AM EST FRI DEC 18 2009
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
SATURDAY...
BASIS...AN AREA OF LOW PRESSURE WILL TRACK ALONG THE SOUTHEAST AND
CAROLINA COAST THIS EVENING THROUGH SATURDAY.
PRECIPITATION TYPES AND ACCUMULATION... A MIXTURE OF SNOW AND
SLEET WILL BECOME MOSTLY SNOW AS IT CONTINUES TO OVERSPREAD THE
REGION THIS AFTERNOON. ACCUMULATIONS OF 1 TO 3 INCHES ARE LIKELY
BY SUNSET. SNOW WILL CONTINUE TONIGHT OVER THE NORTHWEST
PIEDMONT... INCLUDING THE TRIAD REGION... WHERE STORM TOTAL
SNOWFALL AMOUNTS OF 6 TO 10 INCHES ARE LIKELY... WITH LOCALLY
HIGHER TOTALS POSSIBLE. THE SNOW MAY MIX WITH OR CHANGE TO
FREEZING RAIN OR SLEET... MAINLY SOUTH AND EAST OF THE TRIAD LATE
TONIGHT... AND A LIGHT GLAZING IS POSSIBLE. THE PRECIPITATION
WILL TAPER OFF TO LIGHT SNOW OR LIGHT FREEZING DRIZZLE SATURDAY...
WITH LITTLE ADDITIONAL ACCUMULATION.
TIMING AND DURATION...PRECIPITATION WILL OVERSPREAD THE REGION
THIS AFTERNOON... AND WILL REMAIN STEADY LATE THIS AFTERNOON
THROUGH TONIGHT. PRECIPITATION WILL TAPER OFF EARLY SATURDAY
MORNING... AND WILL REMAIN FAIRLY LIGHT THROUGH SATURDAY
AFTERNOON. PRECIPITATION CHANCES ARE EXPECTED TO END BY EARLY
SUNDAY EVENING.
IMPACTS...TRAVELING WILL BECOME VERY TREACHEROUS ACROSS THE
WARNING AREA TODAY THROUGH TONIGHT. SLICK SPOTS WILL FIRST
DEVELOP ON ELEVATED SURFACES... SUCH AS BRIDGES AND OVERPASSES...
BEFORE SNOW ACCUMULATIONS BEGIN TO IMPACT ALL ROAD SURFACES LATER
IN THE DAY. SOME POWER OUTAGES ARE POSSIBLE DUE TO THE COMBINATION
OF HEAVY SNOW AND GLAZE COATING THE TREES... AND STRONG WIND GUSTS
OF 25 TO 30 MPH. IN ADDITION... WIND CHILLS LATE THIS AFTERNOON
THROUGH TONIGHT WILL OCCASIONALLY DROP DOWN INTO THE TEENS.
$$
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