Special Weather Statement
National Weather Service Morristown TN
330 PM EST TUE JAN 15 2008
... Wintry mix expected Wednesday night across east Tennessee...
southwest North Carolina and southwest Virginia Wednesday night
and Thursday...
An area of low pressure will develop across the northern Gulf of
Mexico Wednesday night... then move northeast across southern Georgia
and the eastern Carolinas by Thursday. Meanwhile a ridge
of high pressure over the midatlantic states will keep cold dry
air in place at the surface. Moisture will be lifted over the cold
air... producing widespread precipitation over the area.
The precipitation is expected to begin mainly as snow
Wednesday evening... then change over to rain by Thursday morning.
As warmer air rides up and over the cold air at the surface... there
may be a brief period of freezing rain and sleet during the
transition... which is expected late Wednesday night and early
Thursday morning.
In the Tennessee Valley and Cumberland Plateau... snowfall
accumulations are expected to be one inch or less. Across the
higher elevations of southwest North Carolina and southwest
Virginia... the Smoky Mountains... and the mountains of northeast
Tennessee... up to 2 inches of snow and sleet are possible by
Thursday afternoon.
Some uncertainty remains regarding the type and amount of
precipitation. Only slight changes in temperature can result in
higher or lower snow or ice accumulations than currently forecast.
Later forecasts will update and better define areas that are likely
to see accumulations of winter precipitation. Listen to NOAA
Weather Radio or your local media for the latest updates on this
weather situation.
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