Alert archive / Tennessee / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 25, NWS Morristown, TN

May 20, 2026Anderson County, Knox County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at May 20, 2026, 6:43 PM EDT for Anderson County, Knox County, Tennessee. It was in force for 47 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 20, 2026, 6:43 PM EDT (22:43 UTC)
Expired
May 20, 2026, 7:30 PM EDT
In force
47 min
Issued by
NWS Morristown, TN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Anderson County, TN, Knox County, TN

The radar

The Knoxville radar (KMRX), 61 km from the middle of the area, began a volume at 22:47 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 office that day

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

IssuedProductOfficeCountiesLasted
May 20, 6:15 PM EDTSpecial Weather StatementMRXHamblen, Jefferson45 min
May 20, 6:20 PM EDTSpecial Weather StatementMRXLoudon40 min
May 20, 6:21 PM EDTSpecial Weather StatementMRXKnox39 min
May 20, 7:24 PM EDTSpecial Weather StatementMRXUnion51 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; radar from the NEXRAD Level II archive.