Alert archive / Tennessee / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 27, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at May 22, 2026, 6:33 PM EDT for 4 counties in Tennessee. It was in force for 57 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
- May 22, 2026, 6:33 PM EDT (22:33 UTC)
- Expired
- May 22, 2026, 7:30 PM EDT
- In force
- 57 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Claiborne County, TN, Grainger County, TN, Hancock County, TN, Union County, TN
The radar
The Knoxville radar (KMRX), 29 km from the middle of the area, began a volume at 22:37 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.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.6 hours before the alert went out and 338 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 721 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 May 22, 3:05 PM EDT, 3 hours 28 minutes earlier.
Area forecast discussion, May 22, 3:05 PM EDT, 3 hours 28 minutes before
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Special weather statement, May 22, 1:50 PM EDT, 4 hours 43 minutes before
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</html>The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 10:17 PM EDT | Special Weather Statement | MRX | Marion | 43 min |
| May 21, 10:56 PM EDT | Special Weather Statement | MRX | Marion | 34 min |
| May 22, 1:46 PM EDT | Wind Advisory | MRX | Blount, Cocke, Greene, Sevier, Unicoi | 18 hr |
| May 22, 1:50 PM EDT | Special Weather Statement | MRX | Marion | 40 min |
| May 22, 2:29 PM EDT | Special Weather Statement | MRX | Loudon | 46 min |
| May 22, 3:06 PM EDT | Areal Flood Advisory | MRX | Knox, Loudon | 3 hr |
| May 22, 5:19 PM EDT | Special Weather Statement | MRX | Union | 41 min |
| May 22, 5:44 PM EDT | Severe Thunderstorm Warning | MRX | Anderson, Grainger, Knox, Union | 61 min |
| May 22, 6:31 PM EDT | Areal Flood Advisory | MRX | Anderson, Claiborne, Grainger, Knox, Union | 119 min |
| May 22, 6:39 PM EDT | Special Weather Statement | MRX | Claiborne | 51 min |
| May 22, 7:28 PM EDT | Special Weather Statement | MRX | Hancock | 47 min |
| May 22, 7:44 PM EDT | Special Weather Statement | MRX | Lee | 31 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 2026Every severe thunderstorm warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.