Alert archive / Ohio / Flash Flood Warnings in 2025

Flash Flood Warning 35, NWS Wilmington, OH

July 18, 2025Warren County, Ohio

NWS Wilmington, OH issued this flash flood warning at Jul 18, 2025, 7:55 PM EDT for Warren County, Ohio. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 18, 2025, 7:55 PM EDT (23:55 UTC)
Expired: Jul 18, 2025, 10:40 PM EDT
In force: 3 hr
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Flood severity: None

County Warren County, OH

The radar

The Cincinnati radar (KILN), 30 km from the middle of the area, began a volume at 23:57 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, 11.9 hours before the alert went out and 32 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: 39 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 658 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 113 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 flash flood 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 flash flood warning went out at Jul 18, 2:14 PM EDT, 5 hours 41 minutes earlier.

Area forecast discussion, Jul 18, 2:14 PM EDT, 5 hours 41 minutes before

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Hazardous weather outlook, Jul 18, 2:40 PM EDT, 5 hours 15 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 8:51 PM EDT	Areal Flood Advisory	ILN	Licking	32 min
Jul 17, 9:21 PM EDT	Flash Flood Warning	ILN	Fairfield, Licking	3 hr
Jul 18, 7:21 PM EDT	Areal Flood Advisory	ILN	Butler, Clermont, Hamilton, Warren	3 hr

Nearby

Flash Flood Warnings in Ohio, 2025 Every flash flood 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.