Severe Thunderstorm Warning 183, NWS Morristown, TN

Area Forecast Discussion
National Weather Service Morristown TN
740 PM EDT Fri Aug 17 2018

.AVIATION...It will be an active and wet TAF period as a low
pressure system push across the Southern Appalachian Region.  As a
result...the area will see periods of showers and thunderstorms.
Exact timing a storm will move across a TAF site is uncertain...but
terminals should be prepared for occasional bands of convection
moving through which may lower clouds and reduce VIS for MVFR to IFR
conditions throughout the next 24 hours.  Brief erratic and gusty
thunderstorm winds will also be possible as storms approach local
TAF sites.  Also...with recent rains...areas of fog formation is
expected towards sunrise for an additional chance of MVFR to IFR
conditions.

&&

.MRX WATCHES/WARNINGS/ADVISORIES...
NC...None.
TN...None.
VA...None.
&&

mjb

Hazardous Weather Outlook
National Weather Service Morristown TN
314 PM EDT Fri Aug 17 2018

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-181915-
Cherokee-Clay-Scott TN-Campbell-Claiborne-Hancock-Hawkins-
Sullivan-Johnson-Morgan-Anderson-Union-Grainger-Hamblen-
Northwest Cocke-Cocke Smoky Mountains-Northwest Greene-
Southeast Greene-Washington TN-Unicoi-Northwest Carter-
Southeast Carter-Roane-Loudon-Knox-Jefferson-NW 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-Scott-Russell-Washington-
314 PM EDT Fri Aug 17 2018 /214 PM CDT Fri Aug 17 2018/

This Hazardous Weather Outlook is for portions of Southwest North
Carolina...East Tennessee and Southwest Virginia.

.DAY ONE...This Afternoon and Tonight

Scattered showers and thunderstorms are expected this afternoon
and tonight as an upper disturbance moves in from the west. Some
of these stronger thunderstorms could become severe with the
primary threats being damaging winds and frequent cloud to ground
lightning. In addition, ample moisture will support periods of
heavy rainfall.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Scattered showers and thunderstorms are expected once again both
Saturday and Sunday, especially during the afternoon and evening.
Some of these stronger thunderstorms could become severe with the
primary threats being damaging winds and frequent cloud to ground
lightning. In addition, ample moisture will support periods of
heavy rainfall.

Another system will move across the region Monday and Tuesday
producing another round of potential strong to severe
thunderstorms. Once again, the primary threats being damaging
winds, frequent cloud to ground lightning and torrential rains.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
552 PM EDT FRI AUG 17 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0545 PM     FLASH FLOOD      SPRING CITY             35.69N 84.86W
08/17/2018                   RHEA               TN   911 CALL CENTER

            LOCALIZED FLASH FLOODING OCCURRING AROUND THE SPRING CITY
            AREA WITH PONDING TO MINOR FLOODING ON SOME AREA
            ROADWAYS. 3 ROADS ARE CURRENT CLOSED DUE TO FLOODING.

&&

MBLACK

Special Weather Statement
National Weather Service Morristown TN
732 PM EDT FRI AUG 17 2018

TNZ083-084-099-100-180015-
Rhea TN-Bradley TN-Hamilton TN-Meigs TN-
732 PM EDT FRI AUG 17 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN RHEA...NORTHWESTERN
BRADLEY...SOUTHWESTERN MEIGS AND NORTHEASTERN HAMILTON COUNTIES UNTIL
815 PM EDT...

At 732 PM EDT, Doppler radar was tracking a strong thunderstorm over
Soddy-Daisy, or 12 miles north of Chattanooga, moving northeast at 25
mph.

Wind gusts up to 50 mph will be possible with this storm.

Locations impacted include...
Chattanooga, Cleveland, Dayton, Soddy-Daisy, Walden, Lakesite,
Harrison, Fairmount, Red Bank, Graysville, Flat Top Mountain, North
Chickamauga Creek Gorge, Hopewell, Harrison Bay State Park, Big
Spring, Sale Creek, Mowbray Mountain, Middle Valley, Birchwood and
Falling Water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3520 8534 3532 8524 3539 8520 3556 8502
      3546 8485 3539 8484 3535 8486 3534 8483
      3518 8481 3512 8528
TIME...MOT...LOC 2332Z 238DEG 23KT 3524 8518

Moulton