Alert archive / Tennessee / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 171, NWS Morristown, TN

August 8, 20184 counties in Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Aug 8, 2018, 2:18 PM EDT for 4 counties in Tennessee. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 8, 2018, 2:18 PM EDT (18:18 UTC)
Expired: Aug 8, 2018, 3:00 PM EDT
In force: 42 min
Issued by: NWS Morristown, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Loudon County, TN, McMinn County, TN, Monroe County, TN, Roane County, TN

The radar

The Knoxville radar (KMRX), 111 km from the middle of the area, began a volume at 18:18 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Morristown, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 8, 1:04 PM EDT, 1 hour 14 minutes earlier.

Area forecast discussion, Aug 8, 1:04 PM EDT, 1 hour 14 minutes before

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Hazardous weather outlook, Aug 8, 5:20 AM EDT, 8 hours 58 minutes before

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In the hours before

Special weather statement, Aug 8, 12:35 PM EDT, 1 hour 43 minutes before

Special Weather Statement
National Weather Service Morristown TN
1235 PM EDT WED AUG 8 2018

VAZ001-005-081715-
Scott VA-Lee VA-
1235 PM EDT WED AUG 8 2018

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL LEE AND WESTERN
SCOTT COUNTIES UNTIL 115 PM EDT...

At 1235 PM EDT, Doppler radar was tracking a strong thunderstorm 10
miles south of Big Stone Gap, or 15 miles west of Gate City, moving
east at 15 mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Gate City, Weber City, Duffield, Clinchport, Fort Blackmore and
Jasper.

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.

&&

LAT...LON 3660 8250 3659 8263 3664 8291 3677 8291
      3684 8250
TIME...MOT...LOC 1635Z 270DEG 14KT 3671 8284

DH

Special weather statement, Aug 8, 1:11 PM EDT, 1 hour 7 minutes before

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

TNZ015>017-VAZ001-005-081800-
Sullivan TN-Hancock TN-Hawkins TN-Scott VA-Lee VA-
111 PM EDT WED AUG 8 2018

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN SULLIVAN...NORTHEASTERN
HAWKINS...NORTHEASTERN HANCOCK...SOUTHEASTERN LEE AND SOUTHWESTERN
SCOTT COUNTIES UNTIL 200 PM EDT...

At 111 PM EDT, Doppler radar was tracking a strong thunderstorm 8
miles southeast of Jonesville, moving east at 25 mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Kingsport, Rogersville, Gate City, Surgoinsville, Weber City, Church
Hill, Mount Carmel, Clinchport, Bays Mountain State Park, Sullivan
Gardens, Okolona, Kyles Ford and Fall Branch.

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.

&&

LAT...LON 3667 8255 3643 8258 3642 8260 3643 8262
      3644 8267 3642 8269 3649 8313 3667 8311
TIME...MOT...LOC 1711Z 275DEG 23KT 3658 8304

DH

Special weather statement, Aug 8, 1:19 PM EDT, 59 minutes before

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The office that day

Everything else NWS Morristown, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 7, 8:34 PM EDT	Special Weather Statement	MRX	Morgan	41 min
Aug 8, 1:11 PM EDT	Special Weather Statement	MRX	Hawkins	49 min
Aug 8, 1:19 PM EDT	Special Weather Statement	MRX	Hancock	41 min
Aug 8, 1:53 PM EDT	Severe Thunderstorm Warning	MRX	Anderson, Campbell, Morgan, Scott	67 min
Aug 8, 2:04 PM EDT	Severe Thunderstorm Warning	MRX	McMinn, Meigs, Monroe, Rhea	41 min
Aug 8, 2:33 PM EDT	Severe Thunderstorm Warning	MRX	Blount, Knox	42 min
Aug 8, 2:34 PM EDT	Areal Flood Advisory	MRX	Knox	116 min
Aug 8, 2:36 PM EDT	Areal Flood Advisory	MRX	Marion	114 min
Aug 8, 2:48 PM EDT	Severe Thunderstorm Warning	MRX	Campbell, Claiborne, Grainger, Hancock, Union	57 min
Aug 8, 2:52 PM EDT	Severe Thunderstorm Warning	MRX	Carter, Johnson, Sullivan	23 min
Aug 8, 3:04 PM EDT	Severe Thunderstorm Warning	MRX	McMinn, Monroe	41 min
Aug 8, 3:10 PM EDT	Severe Thunderstorm Warning	MRX	Cocke, Jefferson	50 min
Aug 8, 3:11 PM EDT	Special Weather Statement	MRX	Polk	34 min
Aug 8, 3:44 PM EDT	Severe Thunderstorm Warning	MRX	Blount, McMinn, Monroe, Polk	61 min
Aug 8, 3:51 PM EDT	Special Weather Statement	MRX	Bradley	39 min
Aug 8, 3:53 PM EDT	Special Weather Statement	MRX	Hancock	37 min
Aug 8, 4:06 PM EDT	Severe Thunderstorm Warning	MRX	Greene	39 min
Aug 8, 4:12 PM EDT	Severe Thunderstorm Warning	MRX	Cocke	20 min
Aug 8, 12:35 PM EDT	Special Weather Statement	MRX	Scott	40 min
Aug 8, 3:33 PM EDT	Special Weather Statement	MRX	Cherokee	42 min
Aug 8, 4:38 PM EDT	Areal Flood Advisory	MRX	Cherokee	101 min
Aug 8, 4:41 PM EDT	Special Weather Statement	MRX	Cherokee, Clay	49 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2018 Every severe thunderstorm warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.