WINTER STORM WARNING
Warning Issue Date: 412 AM EST FRI DEC 18 2009
...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM
EST SATURDAY...
A WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY 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 IS EXPECTED TO
OVERSPREAD THE REGION THIS AFTERNOON. ACCUMULATIONS OF 2 TO 5
INCHES ARE LIKELY BY SUNSET. SNOW WILL CONTINUE TONIGHT MAINLY
OVER THE NORTHWEST PIEDMONT INCLUDING PIEDMONT TRIAD REGION...
WHERE STORM TOTAL SNOWFALL AMOUNTS OF 8 TO 12 INCHES ARE LIKELY.
THE SNOW MAY MIX WITH OR CHANGE TO FREEZING RAIN OR SLEET...
MAINLY SOUTH AND EAST OF THE PIEDMONT TRIAD LATE TONIGHT. THE
PRECIPITATION WILL TAPER OFF TO LIGHT SNOW OR LIGHT FREEZING
DRIZZLE SATURDAY... WITH LITTLE ADDITIONAL ACCUMULATION.
TIMING AND DURATION...PRECIPITATION WILL BEGIN AS SNOW ACROSS THE
NORTHWEST AND CENTRAL PIEDMONT...INCLUDING THE PIEDMONT TRIAD
REGION THIS AFTERNOON. THE SNOW WILL CONTINUE AT LEAST INTO THE
EVENING HOURS... AND BECOME HEAVY. THE SNOW MAY BECOME MIXED WITH
SLEET OR CHANGE TO FREEZING RAIN LATE FRIDAY NIGHT OR DURING THE
DAY ON SATURDAY...BEFORE TAPERING OFF SATURDAY EVENING. THERE IS A
POTENTIAL FOR A THIN GLAZE OF ICE FROM FREEZING RAIN ACROSS THE
WARNING AREA.
IMPACTS...TRAVELING WILL BECOME TREACHEROUS IF NOT IMPOSSIBLE
WITHOUT SNOW TIRES OR CHAINS ACROSS THE WARNING AREA LATE TODAY
AND TONIGHT. SLICK SPOTS WILL FIRST DEVELOP ON ELEVATED
SURFACES...INCLUDING BRIDGES AND OVERPASSES...BEFORE SNOW
ACCUMULATIONS BEGIN TO IMPACT ALL ROAD SURFACES LATER IN THE DAY.
SOME POWER OUTAGES ARE POSSIBLE IN THE TRIAD REGION DUE TO THE
COMBINATION OF HEAVY SNOW... SOME FREEZING RAIN... AND STRONG WIND
GUSTS OF 20 TO 30 MPH.
$$
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