Alert archive / Ohio / Flash Flood Warnings in 2026

Flash Flood Warning 86, NWS Wilmington, OH

September 12, 2026Highland County, Ross County, Ohio

NWS Wilmington, OH issued this flash flood warning at Sep 12, 2026, 6:01 PM EDT for Highland County, Ross 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
Sep 12, 2026, 6:01 PM EDT (22:01 UTC)
Expired
Sep 12, 2026, 8:46 PM EDT
In force
3 hr
Issued by
NWS Wilmington, OH
Area
Storm-based polygon
Flood severity
None

Counties Highland County, OH, Ross County, OH

The radar

The Cincinnati radar (KILN), 46 km from the middle of the area, began a volume at 22:04 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, 10.0 hours before the alert went out and 45 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-pSkew-T log-p diagram, Cncnati-Daytn, OH at 12:00Z on 2026-09-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 516 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 2026-09-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
516 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
504 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 12, 12:11 PM EDTAreal Flood AdvisoryILNFairfield, Franklin, Licking, Pickaway3 hr
Sep 12, 1:36 PM EDTAreal Flood AdvisoryILNScioto84 min
Sep 12, 3:56 PM EDTSpecial Weather StatementILNHamilton34 min
Sep 12, 4:30 PM EDTSpecial Weather StatementILNHamilton45 min
Sep 12, 5:28 PM EDTSpecial Weather StatementILNRoss47 min
Sep 12, 5:41 PM EDTSpecial Weather StatementILNWarren34 min
Sep 12, 5:48 PM EDTAreal Flood AdvisoryILNClinton, Fayette, Highland, Ross5 hr
Sep 12, 6:53 PM EDTAreal Flood AdvisoryILNPike, Ross3 hr
Sep 12, 7:27 PM EDTFlash Flood WarningILNPike, Ross3 hr
Sep 12, 7:59 PM EDTAreal Flood AdvisoryILNPike, Ross3 hr
Sep 12, 5:27 AM EDTAreal Flood AdvisoryILNDearborn, Ripley3 hr

Nearby

Flash Flood Warnings in Ohio, 2026Every flash flood 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.