Wind Chill Advisory 1, NWS Morristown, TN

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Hazardous Weather Outlook
National Weather Service Morristown TN
255 PM EST Wed Dec 23 2020

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-242000-
Cherokee-Clay-Scott-Campbell-Claiborne-Hancock-Hawkins-Sullivan-
Johnson-Morgan-Anderson-Union-Grainger-Hamblen-Northwest Cocke-
Cocke Smoky Mountains-Northwest Greene-Southeast Greene-
Washington-Unicoi-Northwest Carter-Southeast Carter-Roane-Loudon-
Knox-Jefferson-Northwest Blount-Blount Smoky Mountains-
North Sevier-Sevier Smoky Mountains-Sequatchie-Bledsoe-Rhea-Meigs-
McMinn-Northwest Monroe-Southeast Monroe-Marion-Hamilton-Bradley-
West Polk-East Polk-Lee-Wise-Russell-
255 PM EST Wed Dec 23 2020 /155 PM CST Wed Dec 23 2020/

This Hazardous Weather Outlook is for portions of southwest North
Carolina...east Tennessee and southwest Virginia.

.DAY ONE...This Afternoon and Tonight

...Mountain Wave High Winds Expected from late this Afternoon
through Noon Thursday...

Strong storm system will move toward the area today producing very
windy conditions across the mountains and foothills of far east
Tennessee from late this Afternoon through Noon Thursday. Please
refer to the high wind warning for more details.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

...Rain Changing to Snow Thursday Afternoon, Continuing through at
least Christmas Morning...
...Dangerous Wind Chills across the Higher elevations late
Thursday through Friday night...

A strong storm system will move across the Tennessee valley and
southern Appalachians Thursday and Thursday night. A period of
moderate to locally heavy rain will move across the region
Thursday. Rainfall of 1 to 1 1/2 inches are expected with locally
heavier amounts across the far east Tennessee Mountains possible.
Isolated runoff problems and localized flooding are possible.

Very cold air will begin to build into the area on Thursday, and
linger through Friday. Rain will change to snow Thursday afternoon
and snow showers will linger through at least Friday morning.
Snow accumulations of 2 to 4 inches are possible across northeast
Tennessee, southwest Virginia, and far east Tennessee Mountains.
Locally heavier amounts are possible the higher elevations. Please
refer to the Winter Storm Warning product for more details.

For the Plateau, parts of the central valley, and southwest North
Carolina, snowfall of 1/2 to 1 1/2 inches are possible. Refer to
the Winter Weather Advisory product for more information.
Elsewhere, little to no accumulations are anticipated.

The very cold airmass along with breezy west to northwest winds
from late Thursday through Friday night will produce dangerous
wind chills from 5 below zero to 5 above zero across the higher
terrain.

Listen to NOAA Weather Radio or your local media for the latest
updates on this situation.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not needed at this time.

Special Weather Statement...UPDATED
National Weather Service Morristown TN
1056 PM EST Wed Dec 23 2020

TNZ081>085-098>100-241200-
Sequatchie-Bledsoe-Rhea-Meigs-McMinn-Marion-Hamilton-Bradley-
Including the cities of Cagle, Dunlap, Cartwright, Lone Oak,
Old Cumberland, Palio, Melvine, Mount Crest, Pikeville, Brayton,
Dayton, Evensville, Old Washington, Grandview, Spring City,
Big Spring, Athens, Clear Water, Dentville, Etowah,
South Pittsburg, Haletown (Guild), Jasper, Martin Springs,
Whitwell, Powells Crossroads, Monteagle, Chattanooga, Cleveland,
and Tasso
1056 PM EST Wed Dec 23 2020 /956 PM CST Wed Dec 23 2020/

...Wintry and Turning much colder Thursday and Christmas Day...

A strong storm system continues to affect the area tonight and
Thursday and will exit the region Christmas Day. Very cold air
will build into the area Thursday and linger through Friday
night. Rain will change to snow Thursday afternoon. Snow showers
will linger through at least Friday morning. With the bulk of the
precipitation moving out quickly, accumulations will be very
limited with a dusting to a half an inch in general and perhaps
approaching an inch in across the highest elevations of the
plateau.

Colder air rushing in could allow for some black ice to develop.
Patches of black ice will be possible Christmas Eve night and
linger into Christmas morning so caution is advised on area roads.

Please listen to NOAA Weather Radio or your local media for the
latest updates on this situation.

TD