Alert archive / Tennessee / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 406, NWS Memphis, TN

September 23, 2025Decatur County, Henderson County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Sep 23, 2025, 4:10 PM CDT for Decatur County, Henderson County, Tennessee. It was in force for 50 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: Sep 23, 2025, 4:10 PM CDT (21:10 UTC)
Expired: Sep 23, 2025, 5:00 PM CDT
In force: 50 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties Decatur County, TN, Henderson County, TN

The radar

The Memphis radar (KNQA), 150 km from the middle of the area, began a volume at 21:12 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

Nashville Metro, TN (KBNA), launched 12:00Z, 9.2 hours before the alert went out and 159 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 245 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 727 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 173 m²/s²
0-3 km storm-relative helicity: 205 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

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 Memphis, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 23, 12:49 PM CDT, 3 hours 21 minutes earlier.

Area forecast discussion, Sep 23, 12:49 PM CDT, 3 hours 21 minutes before

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In the hours before

Special weather statement, Sep 23, 2:41 PM CDT, 1 hour 29 minutes before

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Special weather statement, Sep 23, 3:08 PM CDT, 1 hour 2 minutes before

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Special weather statement, Sep 23, 3:18 PM CDT, 52 minutes before

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Special weather statement, Sep 23, 3:45 PM CDT, 25 minutes before

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Special weather statement, Sep 23, 4:06 PM CDT, 4 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 23, 6:24 AM CDT	Special Weather Statement	MEG	Hardeman, Madison	36 min
Sep 23, 4:06 PM CDT	Special Weather Statement	MEG	Decatur, Henderson	24 min
Sep 23, 4:53 PM CDT	Areal Flood Advisory	MEG	Chester, Decatur, Henderson, Madison	112 min
Sep 23, 12:40 AM CDT	Areal Flood Advisory	MEG	Cross, Poinsett	2 hr
Sep 23, 2:41 PM CDT	Special Weather Statement	MEG	Clay	34 min
Sep 23, 3:08 PM CDT	Special Weather Statement	MEG	Clay	37 min
Sep 23, 3:18 PM CDT	Special Weather Statement	MEG	Greene	27 min
Sep 23, 6:46 PM CDT	Special Weather Statement	MEG	Craighead, Poinsett	29 min
Sep 23, 6:53 PM CDT	Areal Flood Advisory	MEG	Craighead, Poinsett	2 hr
Sep 23, 6:58 PM CDT	Severe Thunderstorm Warning	MEG	Craighead, Crittenden, Mississippi, Poinsett	22 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2025 Every severe thunderstorm warning in 2025

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.