Severe Thunderstorm Warning 178, NWS Morristown, TN

965 
WWUS54 KMRX 082021
SVSMRX

Severe Weather Statement
National Weather Service Morristown TN
421 PM EDT WED AUG 8 2018

TNC059-082045-
/O.CON.KMRX.SV.W.0178.000000T0000Z-180808T2045Z/
Greene TN-
421 PM EDT WED AUG 8 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR SOUTHEASTERN GREENE COUNTY...

At 421 PM EDT, a severe thunderstorm was located 9 miles south of
Greeneville, moving east at 20 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Camp Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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

&&

LAT...LON 3604 8260 3607 8264 3602 8272 3600 8278
      3598 8279 3597 8284 3607 8288 3618 8265
      3615 8265 3614 8264 3614 8263 3608 8258
TIME...MOT...LOC 2021Z 251DEG 18KT 3603 8280 

HAIL...<.75IN
WIND...60MPH
 
$$

DGS

339 
WWUS54 KMRX 082037
SVSMRX

Severe Weather Statement
National Weather Service Morristown TN
437 PM EDT WED AUG 8 2018

TNC059-082047-
/O.EXP.KMRX.SV.W.0178.000000T0000Z-180808T2045Z/
Greene TN-
437 PM EDT WED AUG 8 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GREENE COUNTY
WILL EXPIRE AT 445 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

LAT...LON 3604 8260 3607 8264 3602 8272 3600 8278
      3598 8279 3597 8284 3607 8288 3618 8265
      3615 8265 3614 8264 3614 8263 3608 8258
TIME...MOT...LOC 2037Z 239DEG 25KT 3608 8270 

$$

DGS

Area Forecast Discussion
National Weather Service Morristown TN
304 PM EDT Wed Aug 8 2018

.SHORT TERM (Tonight and Thursday)...A short-wave is moving
across the Tennessee Valley this afternoon/evening. Airmass
remains marginally unstable with MLCAPEs at 2000-2500. Water vapor
and model soundings show mid-level dry air which is enhancing
downdraft strength this afternoon. Ongoing convection is producing
strong to severe storms. The main threat is strong winds but with
a fairly high WBZ and marginal hail CAPE of 500 J/Kg, hail up to
quarter size hail is possible.  Some broad shear in place with
0-6km shear of 30-35kts, but low-levels remain limited.

Southern half of the area has PWs near 2 inches, so heavy
rainfall is expected. Will need to watch for the potential of any
training of storms for localized flash flooding.

The short wave should exit the region this evening for
decreasing convection across the area. On Thursday...a frontal
boundary will be over the region with another short wave
approaching the area. This will allow scattered showers and
thunderstorms to form across the Southern Appalachian Region once
again by the afternoon.

.LONG TERM (Thursday Night through Wednesday)...Will remain in an
unsettle weather pattern throughout the extended.  For the upper
levels...the main weather feature through the period will be an
upper trough dropping into the eastern U.S. with a cut off low
developing and rotating through the Ohio Valley during the weekend.
Closer to the surface...an old and weakening frontal boundary will
be meandering around the TN/GA border area through the end of the
work week and into the weekend.  A couple of weak impulses will ride
along this boundary and this will be the focus of thunderstorms
activity through the first half of the extended.  Timing of the
impulses difficult at this time but diurnal heating will aid in
thunderstorms development and allow for an increased chance of
afternoon/early evening convection.  Around the Monday/Tuesday time
frame...the upper low will be moving east and its effect over the
area diminishing.  As a result...the chance of showers and
thunderstorms will decrease across the area.  By Wednesday...models
in poor agreement but there are indications a short wave will move
through...possibly to our north...once again increasing the chance
of convection.  Temperatures should remain fairly seasonal
throughout the extended period.

&&

.PRELIMINARY POINT TEMPS/POPS...
Chattanooga Airport, TN             72  87  71  85 /  50  60  50  60
Knoxville McGhee Tyson Airport, TN  71  86  69  84 /  60  30  30  50
Oak Ridge, TN                       71  87  68  84 /  50  40  30  50
Tri Cities Airport, TN              67  83  66  83 /  60  30  20  30

&&

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

DH/MJB

Hazardous Weather Outlook
National Weather Service Morristown TN
310 PM EDT Wed Aug 8 2018

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-091915-
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-
310 PM EDT Wed Aug 8 2018 /210 PM CDT Wed Aug 8 2018/

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

.DAY ONE...This Afternoon and Tonight

Ongoing thunderstorms will march across the forecast area this
afternoon and evening. A few storms will become strong with a few
severe storms possible. The main threat will be damaging winds.
Also, heavy rains could cause brief flash flooding in a few
places.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

No hazardous weather is expected.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed in a few locations this afternoon,
otherwise spotter activation is not anticipated.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
325 PM EDT WED AUG 8 2018

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

0320 PM     TSTM WND DMG     DANDRIDGE               36.02N 83.42W
08/08/2018                   JEFFERSON          TN   911 CALL CENTER

            FEW TREES DOWN.

&&

PWARREN

Special Weather Statement
National Weather Service Morristown TN
333 PM EDT WED AUG 8 2018

NCZ060-061-082015-
Clay NC-Cherokee NC-
333 PM EDT WED AUG 8 2018

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL CHEROKEE AND NORTHWESTERN
CLAY COUNTIES UNTIL 415 PM EDT...

At 333 PM EDT, Doppler radar was tracking a strong thunderstorm near
Murphy, moving east at 20 mph.

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

Locations impacted include...
Andrews, Murphy, Tusquitee, Topton, Marble and Unaka.

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 3523 8419 3525 8415 3525 8409 3529 8403
      3527 8401 3524 8401 3522 8397 3526 8384
      3524 8374 3526 8371 3523 8369 3520 8373
      3519 8371 3516 8374 3515 8373 3516 8365
      3514 8366 3514 8364 3507 8364 3506 8413
TIME...MOT...LOC 1933Z 248DEG 17KT 3515 8409

Moulton

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
344 PM EDT WED AUG 8 2018

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

0255 PM     TSTM WND DMG     10 WNW ALCOA            35.85N 84.14W
08/08/2018                   BLOUNT             TN   911 CALL CENTER

            LARGE TREE DOWN.

&&

PWARREN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
348 PM EDT WED AUG 8 2018

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

0335 PM     TSTM WND DMG     MOUNT VERNON            35.41N 84.36W
08/08/2018                   MONROE             TN   911 CALL CENTER

            POWER LINES AND TREES DOWN.

&&

PWARREN

Special Weather Statement
National Weather Service Morristown TN
351 PM EDT WED AUG 8 2018

TNZ100-082030-
Bradley TN-
351 PM EDT WED AUG 8 2018

...SIGNIFICANT WEATHER ADVISORY FOR BRADLEY COUNTY UNTIL 430 PM
EDT...

At 351 PM EDT, Doppler radar was tracking a strong thunderstorm near
Wildwood Lake, or 10 miles south of Cleveland, moving northeast at 20
mph.

Half inch hail and wind gusts of 50 to 55 mph will be possible with
this storm.

Locations impacted include...
Cleveland, South Cleveland, East Cleveland, Wildwood Lake,
Waterville, Red Clay State Park, Flint Springs, Gap Springs and
Tasso.

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 3499 8497 3502 8496 3503 8499 3528 8485
      3523 8470 3517 8470 3509 8474 3508 8474
      3502 8476 3499 8478
TIME...MOT...LOC 1951Z 224DEG 17KT 3503 8484

Moulton

Special Weather Statement
National Weather Service Morristown TN
353 PM EDT WED AUG 8 2018

TNZ015-016-038-VAZ001-082030-
Hancock TN-Grainger TN-Hawkins TN-Lee VA-
353 PM EDT WED AUG 8 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN HAWKINS...HANCOCK...
NORTHEASTERN GRAINGER AND SOUTHEASTERN LEE COUNTIES UNTIL 430 PM
EDT...

At 352 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles northwest of Sneedville to 7 miles west
of Bean Station. Movement was northeast at 40 mph.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
Rogersville, Sneedville, Jonesville, Bean Station, Pennington Gap,
Thorn Hill, Evanston, Dryden, Treadway, Mooresburg, Kyles Ford,
Pattonsville and Klondike.

LAT...LON 3683 8282 3671 8288 3667 8295 3660 8299
      3659 8293 3640 8302 3627 8347 3642 8340
      3641 8339 3643 8337 3647 8337 3665 8329
      3684 8283
TIME...MOT...LOC 1952Z 245DEG 36KT 3660 8330 3634 8342

DGS