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Home Return to list Severe Thunderstorm Warning 0025 Issued by the Morristown / Knoxville Forecast Office
Action: New Issued At: 2026-05-20 17:43:33
941
WUUS54 KMRX 202243
SVRMRX
TNC001-093-202330-
/O.NEW.KMRX.SV.W.0025.260520T2243Z-260520T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Morristown TN
643 PM EDT Wed May 20 2026
The National Weather Service in Morristown has issued a
* Severe Thunderstorm Warning for...
Knox County in east Tennessee...
East central Anderson County in east Tennessee...
* Until 730 PM EDT.
* At 639 PM EDT, a severe thunderstorm was located over Knoxville,
moving north at 15 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Knoxville, Clinton, Alcoa, Halls, Maloneyville, Lake Forest,
Mascot, Bearden, Powell, and House Mountain State Park.
This includes the following highways...
Interstate 40 in Tennessee between mile markers 379 and 401.
Interstate 75 in Tennessee between mile markers 108 and 118.
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 3585 8391 3588 8395 3586 8398 3588 8400
3587 8403 3586 8401 3586 8406 3614 8415
3610 8369 3608 8367 3609 8371 3606 8369
3605 8368 3588 8380 3585 8384
TIME...MOT...LOC 2239Z 182DEG 13KT 3594 8393
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Action: Continued Issued At: 2026-05-20 18:03:34
515
WWUS54 KMRX 202303
SVSMRX
Severe Weather Statement
National Weather Service Morristown TN
703 PM EDT Wed May 20 2026
TNC001-093-202330-
/O.CON.KMRX.SV.W.0025.000000T0000Z-260520T2330Z/
Knox TN-Anderson TN-
703 PM EDT Wed May 20 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR CENTRAL KNOX AND EAST CENTRAL ANDERSON COUNTIES...
At 702 PM EDT, a severe thunderstorm was located near Knoxville,
moving north at 15 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Knoxville, Clinton, Halls, Maloneyville, Lake Forest, Mascot,
Bearden, Powell, and House Mountain State Park.
This includes the following highways...
Interstate 40 in Tennessee between mile markers 382 and 400.
Interstate 75 in Tennessee between mile markers 108 and 118.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3592 8403 3614 8415 3610 8369 3608 8367
3609 8371 3606 8369 3605 8368 3591 8381
TIME...MOT...LOC 2302Z 182DEG 13KT 3603 8393
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Action: Continued Issued At: 2026-05-20 18:15:04
960
WWUS54 KMRX 202314
SVSMRX
Severe Weather Statement
National Weather Service Morristown TN
714 PM EDT Wed May 20 2026
TNC001-093-202330-
/O.CON.KMRX.SV.W.0025.000000T0000Z-260520T2330Z/
Knox TN-Anderson TN-
714 PM EDT Wed May 20 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR NORTHEASTERN KNOX AND EAST CENTRAL ANDERSON COUNTIES...
At 714 PM EDT, a severe thunderstorm was located 7 miles north of
Knoxville, moving north at 15 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Knoxville, Clinton, Halls, Maloneyville, Mascot, Powell, and House
Mountain State Park.
This includes the following highways...
Interstate 40 in Tennessee between mile markers 390 and 398.
Interstate 75 in Tennessee between mile markers 108 and 118.
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 3599 8401 3614 8415 3610 8369 3608 8367
3609 8371 3606 8369 3605 8368 3598 8380
TIME...MOT...LOC 2314Z 188DEG 13KT 3608 8391
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
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