Alert archive / Ohio / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 193, NWS Wilmington, OH

August 10, 2020Mercer County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Aug 10, 2020, 8:03 PM EDT for Mercer County, Ohio. It was in force for 42 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
Aug 10, 2020, 8:03 PM EDT (00:03 UTC)
Expired
Aug 10, 2020, 8:45 PM EDT
In force
42 min
Issued by
NWS Wilmington, OH
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Mercer County, OH

The radar

The Northern Indiana radar (KIWX), 128 km from the middle of the area, began a volume at 00:08 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 00:00Z, 0.1 hours before the alert went out and 142 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 00:00Z on 2020-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 142 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 00:00Z on 2020-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 square meters per square second.193958Sfc1 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
142 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
1344 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
111 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 Aug 10, 3:22 PM EDT, 4 hours 41 minutes earlier.

Area forecast discussion, Aug 10, 3:22 PM EDT, 4 hours 41 minutes before
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Hazardous weather outlook, Aug 10, 2:47 PM EDT, 5 hours 16 minutes before
Hazardous Weather Outlook
National Weather Service Wilmington OH
247 PM EDT Mon Aug 10 2020

INZ050-058-059-066-073>075-080-KYZ089>096-OHZ026-034-035-042>044-051-
060-061-070-071-077-078-111900-
Wayne-Fayette IN-Union IN-Franklin IN-Ripley-Dearborn-Ohio-
Switzerland-Carroll-Gallatin-Boone-Kenton-Campbell-Owen-Grant-
Pendleton-Hardin-Mercer-Auglaize-Darke-Shelby-Logan-Miami-Preble-
Montgomery-Butler-Warren-Hamilton-Clermont-
247 PM EDT Mon Aug 10 2020

This Hazardous Weather Outlook is for East Central Indiana,
Southeast Indiana, Northern Kentucky, Southwest Ohio and West
Central Ohi

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 8:27 PM EDTSpecial Weather StatementILNDarke33 min
Aug 10, 8:27 PM EDTSevere Thunderstorm WarningILNMercer18 min
Aug 10, 8:36 PM EDTSevere Thunderstorm WarningILNDarke, Miami, Shelby39 min
Aug 10, 8:41 PM EDTSevere Thunderstorm WarningILNAuglaize, Mercer, Shelby34 min
Aug 10, 9:02 PM EDTSpecial Weather StatementILNAuglaize, Miami, Montgomery, Shelby43 min
Aug 10, 9:21 PM EDTSpecial Weather StatementILNHardin24 min
Aug 10, 9:38 PM EDTSpecial Weather StatementILNChampaign, Clark, Greene, Miami, Montgomery37 min
Aug 10, 9:48 PM EDTSpecial Weather StatementILNHardin, Logan, Union27 min
Aug 10, 10:10 PM EDTSpecial Weather StatementILNButler, Clark, Clinton, Greene, Hamilton, Madison and 1 more50 min
Aug 10, 10:40 PM EDTSpecial Weather StatementILNBrown, Clermont, Clinton, Fayette, Highland, Pickaway35 min
Aug 10, 10:53 PM EDTSevere Thunderstorm WarningILNAdams, Brown, Clermont, Clinton, Hamilton, Highland52 min
Aug 10, 11:37 PM EDTSpecial Weather StatementILNAdams23 min
Aug 10, 11:47 PM EDTSpecial Weather StatementILNHocking, Pickaway, Pike, Ross28 min
Aug 11, 12:00 AM EDTSpecial Weather StatementILNAdams30 min
Aug 11, 12:15 AM EDTSpecial Weather StatementILNRoss30 min
Aug 10, 10:43 PM EDTSpecial Weather StatementILNCampbell, Gallatin, Grant, Kenton, Owen, Pendleton32 min
Aug 10, 11:18 PM EDTSpecial Weather StatementILNBracken, Pendleton, Robertson27 min
Aug 10, 9:03 PM EDTSpecial Weather StatementILNRipley27 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2020Every severe thunderstorm warning in 2020

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.