Alert archive / Ohio / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 213, NWS Wilmington, OH

August 28, 2020Hardin County, Logan County, Union County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Aug 28, 2020, 3:44 PM EDT for Hardin County, Logan County, Union County, Ohio. It was in force for 46 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 28, 2020, 3:44 PM EDT (19:44 UTC)
Expired
Aug 28, 2020, 4:30 PM EDT
In force
46 min
Issued by
NWS Wilmington, OH
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Hardin County, OH, Logan County, OH, Union County, OH

The radar

The Cincinnati radar (KILN), 116 km from the middle of the area, began a volume at 19:47 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, 7.7 hours before the alert went out and 115 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 2020-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 985 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 2020-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 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
985 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
1127 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
79 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.0

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 28, 2:11 PM EDT, 1 hour 33 minutes earlier.

Area forecast discussion, Aug 28, 2:11 PM EDT, 1 hour 33 minutes before
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Hazardous weather outlook, Aug 28, 4:32 AM EDT, 11 hours 12 minutes before
Hazardous Weather Outlook
National Weather Service Wilmington OH
432 AM EDT Fri Aug 28 2020

INZ050-058-059-OHZ026-034-035-042>046-051>056-060>065-290845-
Wayne-Fayette IN-Union IN-Hardin-Mercer-Auglaize-Darke-Shelby-Logan-
Union OH-Delaware-Miami-Champaign-Clark-Madison-Franklin OH-Licking-
Preble-Montgomery-Greene-Fayette OH-Pickaway-Fairfield-
432 AM EDT Fri Aug 28 2020

This Hazardous Weather Outlook is for East Central Indiana, Central
Ohio and West Central Ohio.

.DAY ONE...Today and tonight.

Thunderstorms will develop across the area today. Some storms could
be severe, mainly in the afternoon and evening. Damaging winds are
the primary severe weather threat. In addition, locally heavy
rainfall may result in flooding.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

There is a low probability for widespread hazardous weather.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed, while following all local, state
and CDC guidelines.

INZ066-073>075-080-KYZ089>100-OHZ070>074-077>082-088-290845-
Franklin IN-Ripley-Dearborn-Ohio-Switzerland-Carroll-Gallatin-Boone-
Kenton-Campbell-Owen-Grant-Pendleton-Bracken-Robertson-Mason-Lewis-
Butler-Warren-Clinton-Ross-Hocking-Hamilton-Clermont-Brown-Highland-
Adams-Pike-Scioto-
432 AM EDT Fri Aug 28 2020

This Hazardous Weather Outlook is for Southeast Indiana, Northeast
Kentucky, Northern Kentucky, Central Ohio, South Central Ohio and
Southwest Ohio.

.DAY ONE...Today and tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

There is a low probability for widespread hazardous weather.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Aug 28, 2:49 PM EDT, 55 minutes before
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Special weather statement, Aug 28, 3:14 PM EDT, 30 minutes before
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Special weather statement, Aug 28, 3:17 PM EDT, 27 minutes before
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Local storm report, Aug 28, 3:28 PM EDT, 16 minutes before
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Local storm report, Aug 28, 3:31 PM EDT, 13 minutes before
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Local storm report, Aug 28, 3:35 PM EDT, 9 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 11:03 AM EDTSpecial Weather StatementILNDarke27 min
Aug 28, 11:41 AM EDTSpecial Weather StatementILNMiami34 min
Aug 28, 12:10 PM EDTSpecial Weather StatementILNChampaign35 min
Aug 28, 12:44 PM EDTSpecial Weather StatementILNUnion31 min
Aug 28, 12:52 PM EDTSevere Thunderstorm WarningILNDelaware, Franklin, Licking53 min
Aug 28, 12:59 PM EDTSpecial Weather StatementILNUnion31 min
Aug 28, 1:03 PM EDTSpecial Weather StatementILNDelaware27 min
Aug 28, 1:11 PM EDTSevere Thunderstorm WarningILNHardin, Logan, Union49 min
Aug 28, 1:25 PM EDTSevere Thunderstorm WarningILNDelaware20 min
Aug 28, 1:36 PM EDTSpecial Weather StatementILNLicking24 min
Aug 28, 1:37 PM EDTSevere Thunderstorm WarningILNLicking25 min
Aug 28, 2:03 PM EDTAreal Flood AdvisoryILNLicking3 hr
Aug 28, 2:16 PM EDTSpecial Weather StatementILNLicking29 min
Aug 28, 2:41 PM EDTSpecial Weather StatementILNLicking34 min
Aug 28, 2:49 PM EDTSpecial Weather StatementILNClermont26 min
Aug 28, 3:14 PM EDTSpecial Weather StatementILNWarren31 min
Aug 28, 3:17 PM EDTSpecial Weather StatementILNLogan28 min
Aug 28, 4:11 PM EDTSpecial Weather StatementILNFayette34 min
Aug 28, 4:37 PM EDTSpecial Weather StatementILNRoss38 min
Aug 28, 4:51 PM EDTSpecial Weather StatementILNLicking24 min
Aug 28, 4:57 PM EDTSpecial Weather StatementILNClermont33 min
Aug 28, 5:18 PM EDTSpecial Weather StatementILNLicking27 min
Aug 28, 5:25 PM EDTSevere Thunderstorm WarningILNBrown, Clermont, Highland40 min
Aug 28, 6:04 PM EDTSpecial Weather StatementILNHighland26 min
Aug 28, 6:29 PM EDTSpecial Weather StatementILNRoss31 min
Aug 28, 6:56 PM EDTSpecial Weather StatementILNPike, Ross34 min
Aug 28, 7:16 PM EDTSpecial Weather StatementILNPickaway29 min
Aug 28, 7:28 PM EDTSpecial Weather StatementILNHocking32 min
Aug 28, 7:44 PM EDTSpecial Weather StatementILNFairfield, Licking31 min
Aug 28, 2:29 PM EDTSpecial Weather StatementILNBoone31 min
Aug 28, 4:29 PM EDTSpecial Weather StatementILNGrant, Pendleton31 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.