Jonesborough, Tennessee

... High Wind Warning remains in effect until 7 PM EST Wednesday...

A High Wind Warning remains in effect until 7 PM EST Wednesday.

* Damaging winds are expected across the mountains of east
Tennessee... southwest Virginia... extreme southwest North
Carolina... and the adjacent foothills beginning tonight and
continuing Wednesday. A cold front will move across the region
producing a line of showers and possibly thunderstorms. Due to
the very strong winds aloft... these storm are capable of
producing damaging winds. Tight pressure gradient behind the
front will continue to produce strong and gusty winds Wednesday.

* Southerly winds are expected to increase to 30 to 45 mph with
gusts of 60 to 70 mph. Wind gusts up to 80 mph are possible at
times across the highest elevations. The adjacent foothills may
also experience extremely strong and gusty winds.

* This wind event has the potential to produce extreme wind damage.
Widespread property damage and power outages can be expected. Damage
to trees and power lines are likely. Travelers will need to be
alert to strong and gusty Crosswinds... especially those driving
high profile vehicles on north to south roadways.


Precautionary/preparedness actions...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph and/or
gusts of 58 mph or higher can be expected at times. Winds of
these magnitudes can cause property damage and power outages.
Motorists should use caution... especially those in high profile
vehicles.

... A line of strong to severe showers and thunderstorms expected
overnight...

A powerful storm system across the plain states will pull a cold
front east through the Tennessee Valley and southern Appalachians
overnight. The tight pressure gradients around this system has
produced strong southerly winds aloft. The southerly winds will
pull moisture and instability back into the Tennessee Valley.

The cold front will produce a line of showers and thunderstorms
across east Tennessee... southwest Virginia... and southwest North
Carolina overnight and early Wednesday morning. Due to the strong winds
aloft... these thunderstorms may produce damaging straight line
winds in excess of 60 mph.

Damage to trees and power lines are possible. Please stay tuned to
NOAA Weather Radio and other local media for further details or
updates.