Alert archive / Ohio / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 239, NWS Wilmington, OH

September 4, 20264 counties in Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Sep 4, 2026, 3:17 PM EDT for 4 counties in Ohio. It was in force for 43 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 4, 2026, 3:17 PM EDT (19:17 UTC)
Expired: Sep 4, 2026, 4:00 PM EDT
In force: 43 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Darke County, OH, Miami County, OH, Montgomery County, OH, Preble County, OH

The radar

The Cincinnati radar (KILN), 77 km from the middle of the area, began a volume at 19:19 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, 7.3 hours before the alert went out and 78 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: 2026 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 1349 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 81 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Wilmington, OH wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 4, 2:29 PM EDT, 48 minutes earlier.

Area forecast discussion, Sep 4, 2:29 PM EDT, 48 minutes before

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Hazardous weather outlook, Sep 4, 4:49 AM EDT, 10 hours 28 minutes before

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In the hours before

Special weather statement, Sep 4, 1:59 PM EDT, 1 hour 18 minutes before

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Special weather statement, Sep 4, 2:04 PM EDT, 1 hour 13 minutes before

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Special weather statement, Sep 4, 2:18 PM EDT, 59 minutes before

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Special weather statement, Sep 4, 2:26 PM EDT, 51 minutes before

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Special weather statement, Sep 4, 2:48 PM EDT, 29 minutes before

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Special weather statement, Sep 4, 3:07 PM EDT, 10 minutes before

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The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 3, 8:14 PM EDT	Severe Thunderstorm Warning	ILN	Champaign, Logan, Union	31 min
Sep 4, 10:29 AM EDT	Special Weather Statement	ILN	Shelby	31 min
Sep 4, 11:24 AM EDT	Special Weather Statement	ILN	Licking	36 min
Sep 4, 11:56 AM EDT	Special Weather Statement	ILN	Madison	34 min
Sep 4, 1:17 PM EDT	Special Weather Statement	ILN	Delaware	43 min
Sep 4, 1:34 PM EDT	Severe Thunderstorm Warning	ILN	Delaware, Licking	31 min
Sep 4, 1:46 PM EDT	Special Weather Statement	ILN	Mercer	44 min
Sep 4, 1:59 PM EDT	Special Weather Statement	ILN	Fayette	46 min
Sep 4, 2:04 PM EDT	Special Weather Statement	ILN	Licking	26 min
Sep 4, 2:26 PM EDT	Special Weather Statement	ILN	Darke	34 min
Sep 4, 2:41 PM EDT	Severe Thunderstorm Warning	ILN	Darke, Miami, Shelby	49 min
Sep 4, 2:48 PM EDT	Special Weather Statement	ILN	Darke	42 min
Sep 4, 3:00 PM EDT	Severe Thunderstorm Warning	ILN	Darke	30 min
Sep 4, 3:07 PM EDT	Special Weather Statement	ILN	Miami	23 min
Sep 4, 3:13 PM EDT	Severe Thunderstorm Warning	ILN	Clark, Greene, Miami, Montgomery	47 min
Sep 4, 3:42 PM EDT	Severe Thunderstorm Warning	ILN	Montgomery	33 min
Sep 4, 3:52 PM EDT	Severe Thunderstorm Warning	ILN	Clark, Greene, Montgomery	38 min
Sep 4, 3:54 PM EDT	Special Weather Statement	ILN	Preble	36 min
Sep 4, 4:06 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Montgomery, Warren	28 min
Sep 4, 4:13 PM EDT	Special Weather Statement	ILN	Clinton	32 min
Sep 4, 4:19 PM EDT	Severe Thunderstorm Warning	ILN	Clinton, Fayette, Greene	41 min
Sep 4, 4:27 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Preble	48 min
Sep 4, 4:33 PM EDT	Special Weather Statement	ILN	Clermont	27 min
Sep 4, 4:40 PM EDT	Severe Thunderstorm Warning	ILN	Brown, Clinton, Highland	50 min
Sep 4, 4:45 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Hamilton	45 min
Sep 4, 4:58 PM EDT	Severe Thunderstorm Warning	ILN	Clinton, Fayette, Highland, Ross	32 min
Sep 4, 5:00 PM EDT	Special Weather Statement	ILN	Hamilton	30 min
Sep 4, 5:07 PM EDT	Special Weather Statement	ILN	Butler	23 min
Sep 4, 5:13 PM EDT	Special Weather Statement	ILN	Adams	32 min
Sep 4, 5:17 PM EDT	Special Weather Statement	ILN	Hamilton	28 min
Sep 4, 5:19 PM EDT	Severe Thunderstorm Warning	ILN	Highland, Pike, Ross	26 min
Sep 4, 5:28 PM EDT	Special Weather Statement	ILN	Brown	47 min
Sep 4, 5:33 PM EDT	Severe Thunderstorm Warning	ILN	Hamilton	17 min
Sep 4, 5:39 PM EDT	Special Weather Statement	ILN	Pike	36 min
Sep 4, 5:41 PM EDT	Special Weather Statement	ILN	Adams, Scioto	34 min
Sep 4, 2:18 PM EDT	Special Weather Statement	ILN	Lewis	42 min
Sep 4, 5:49 PM EDT	Special Weather Statement	ILN	Campbell	26 min
Sep 4, 6:03 PM EDT	Special Weather Statement	ILN	Bracken, Gallatin, Grant, Lewis, Mason, Pendleton	42 min
Sep 4, 4:01 PM EDT	Special Weather Statement	ILN	Franklin	29 min
Sep 4, 4:08 PM EDT	Special Weather Statement	ILN	Union, Wayne	37 min
Sep 4, 4:29 PM EDT	Severe Thunderstorm Warning	ILN	Dearborn, Franklin, Ripley	46 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2026 Every 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.