Alert archive / Tennessee / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 112, NWS Morristown, TN

July 20, 2020Anderson County, Knox County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Jul 20, 2020, 9:15 PM EDT for Anderson County, Knox County, Tennessee. It was in force for 45 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
Jul 20, 2020, 9:15 PM EDT (01:15 UTC)
Expired
Jul 20, 2020, 10:00 PM EDT
In force
45 min
Issued by
NWS Morristown, TN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Anderson County, TN, Knox County, TN

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.

In the hours before

Special weather statement, Jul 20, 8:18 PM EDT, 57 minutes before
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Special weather statement, Jul 20, 8:20 PM EDT, 55 minutes before
Special Weather Statement
National Weather Service Morristown TN
820 PM EDT Mon Jul 20 2020

TNZ068-069-071-210100-
Loudon TN-Knox TN-NW Blount TN-
820 PM EDT Mon Jul 20 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN LOUDON...
SOUTHWESTERN KNOX AND NORTHWESTERN BLOUNT COUNTIES UNTIL 900 PM
EDT...

At 819 PM EDT, Doppler radar was tracking a strong thunderstorm near
Lenoir City, moving northeast at 10 mph.

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

Locations impacted include...
Knoxville, Lenoir City, Alcoa, Farragut, Louisville, Friendsville and
Karns.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also possible 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 3584 8430 3595 8423 3595 8421 3596 8422
      3598 8421 3598 8420 3599 8420 3599 8415
      3600 8413 3589 8394 3570 8416
TIME...MOT...LOC 0019Z 213DEG 7KT 3581 8421

TD
Special weather statement, Jul 20, 8:34 PM EDT, 41 minutes before
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Special weather statement, Jul 20, 8:39 PM EDT, 36 minutes before
Special Weather Statement
National Weather Service Morristown TN
839 PM EDT Mon Jul 20 2020

TNZ016-017-042-044-210130-
Sullivan TN-Washington TN-Northwest Greene TN-Hawkins TN-
839 PM EDT Mon Jul 20 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN SULLIVAN...
NORTHEASTERN HAWKINS...NORTHWESTERN WASHINGTON AND NORTHEASTERN
GREENE COUNTIES UNTIL 930 PM EDT...

At 838 PM EDT, Doppler radar was tracking a strong thunderstorm 9
miles southwest of Kingsport, moving east at 10 mph.

Pea size hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Johnson City, Kingsport, Gray, Colonial Heights, Spurgeon, Church
Hill, Mount Carmel, Sullivan Gardens, Fall Branch and Warriors Path
State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also possible 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 3633 8276 3653 8278 3657 8249 3634 8246
TIME...MOT...LOC 0038Z 267DEG 8KT 3643 8268

TD
Special weather statement, Jul 20, 9:02 PM EDT, 13 minutes before
Special Weather Statement
National Weather Service Morristown TN
902 PM EDT Mon Jul 20 2020

TNZ036-069-210145-
Anderson TN-Knox TN-
902 PM EDT Mon Jul 20 2020

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN KNOX AND CENTRAL ANDERSON
COUNTIES UNTIL 945 PM EDT...

At 902 PM EDT, Doppler radar was tracking a strong thunderstorm near
Farragut, or 8 miles east of Oak Ridge, moving north at 15 mph.

Pea size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Knoxville, Oak Ridge, Clinton, Farragut, Norris, Powell and Karns.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also possible 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 3589 8425 3590 8427 3618 8425 3618 8423
      3622 8423 3616 8392 3585 8406
TIME...MOT...LOC 0102Z 191DEG 13KT 3594 8415

TD
Special weather statement, Jul 20, 9:06 PM EDT, 9 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 8:04 PM EDTSpecial Weather StatementMRXBlount41 min
Jul 20, 8:18 PM EDTSpecial Weather StatementMRXMeigs42 min
Jul 20, 8:20 PM EDTSpecial Weather StatementMRXLoudon40 min
Jul 20, 8:34 PM EDTSpecial Weather StatementMRXLoudon26 min
Jul 20, 8:39 PM EDTSpecial Weather StatementMRXWashington51 min
Jul 20, 9:02 PM EDTSpecial Weather StatementMRXAnderson43 min
Jul 20, 9:06 PM EDTSpecial Weather StatementMRXMcMinn39 min
Jul 20, 9:31 PM EDTSpecial Weather StatementMRXJohnson44 min
Jul 20, 9:39 PM EDTSpecial Weather StatementMRXMonroe, Roane51 min
Jul 20, 9:52 PM EDTAreal Flood AdvisoryMRXLoudon, McMinn, Meigs, Monroe, Roane93 min
Jul 20, 10:30 PM EDTSpecial Weather StatementMRXMonroe45 min
Jul 20, 10:48 PM EDTAreal Flood AdvisoryMRXMonroe57 min
Jul 20, 11:02 PM EDTSpecial Weather StatementMRXKnox43 min
Jul 20, 11:11 PM EDTSpecial Weather StatementMRXBlount49 min
Jul 20, 11:58 PM EDTSpecial Weather StatementMRXSevier32 min
Jul 21, 4:25 PM EDTSpecial Weather StatementMRXLoudon50 min
Jul 21, 4:27 PM EDTSpecial Weather StatementMRXPolk48 min
Jul 21, 4:32 PM EDTSevere Thunderstorm WarningMRXMcMinn, Polk43 min
Jul 21, 4:42 PM EDTSpecial Weather StatementMRXMcMinn48 min
Jul 21, 4:54 PM EDTSevere Thunderstorm WarningMRXMcMinn, Monroe51 min
Jul 21, 5:18 PM EDTSpecial Weather StatementMRXSequatchie42 min
Jul 21, 7:52 PM EDTSpecial Weather StatementMRXMorgan38 min
Jul 21, 11:19 AM EDTSpecial Weather StatementMRXCherokee41 min
Jul 21, 1:47 PM EDTSpecial Weather StatementMRXClay43 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2020Every severe thunderstorm warning in 2020

Sources

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