Alert archive / Ohio / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 214, NWS Wilmington, OH

August 28, 2020Brown County, Clermont County, Highland County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Aug 28, 2020, 5:25 PM EDT for Brown County, Clermont County, Highland County, Ohio. It was in force for 40 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, 5:25 PM EDT (21:25 UTC)
Expired: Aug 28, 2020, 6:05 PM EDT
In force: 40 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Brown County, OH, Clermont County, OH, Highland County, OH

The radar

The Cincinnati radar (KILN), 41 km from the middle of the area, began a volume at 21:27 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, 9.4 hours before the alert went out and 42 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: 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, 3:46 PM EDT, 1 hour 39 minutes earlier.

Area forecast discussion, Aug 28, 3:46 PM EDT, 1 hour 39 minutes before

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Hazardous weather outlook, Aug 28, 3:50 PM EDT, 1 hour 35 minutes before

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In the hours before

Special weather statement, Aug 28, 4:11 PM EDT, 1 hour 14 minutes before

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Special weather statement, Aug 28, 4:29 PM EDT, 56 minutes before

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Special weather statement, Aug 28, 4:37 PM EDT, 48 minutes before

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Special weather statement, Aug 28, 4:51 PM EDT, 34 minutes before

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Special weather statement, Aug 28, 4:57 PM EDT, 28 minutes before

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Special weather statement, Aug 28, 5:18 PM EDT, 7 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
Aug 28, 11:03 AM EDT	Special Weather Statement	ILN	Darke	27 min
Aug 28, 11:41 AM EDT	Special Weather Statement	ILN	Miami	34 min
Aug 28, 12:10 PM EDT	Special Weather Statement	ILN	Champaign	35 min
Aug 28, 12:44 PM EDT	Special Weather Statement	ILN	Union	31 min
Aug 28, 12:52 PM EDT	Severe Thunderstorm Warning	ILN	Delaware, Franklin, Licking	53 min
Aug 28, 12:59 PM EDT	Special Weather Statement	ILN	Union	31 min
Aug 28, 1:03 PM EDT	Special Weather Statement	ILN	Delaware	27 min
Aug 28, 1:11 PM EDT	Severe Thunderstorm Warning	ILN	Hardin, Logan, Union	49 min
Aug 28, 1:25 PM EDT	Severe Thunderstorm Warning	ILN	Delaware	20 min
Aug 28, 1:36 PM EDT	Special Weather Statement	ILN	Licking	24 min
Aug 28, 1:37 PM EDT	Severe Thunderstorm Warning	ILN	Licking	25 min
Aug 28, 2:03 PM EDT	Areal Flood Advisory	ILN	Licking	3 hr
Aug 28, 2:16 PM EDT	Special Weather Statement	ILN	Licking	29 min
Aug 28, 2:41 PM EDT	Special Weather Statement	ILN	Licking	34 min
Aug 28, 2:49 PM EDT	Special Weather Statement	ILN	Clermont	26 min
Aug 28, 3:14 PM EDT	Special Weather Statement	ILN	Warren	31 min
Aug 28, 3:17 PM EDT	Special Weather Statement	ILN	Logan	28 min
Aug 28, 3:44 PM EDT	Severe Thunderstorm Warning	ILN	Hardin, Logan, Union	46 min
Aug 28, 4:11 PM EDT	Special Weather Statement	ILN	Fayette	34 min
Aug 28, 4:37 PM EDT	Special Weather Statement	ILN	Ross	38 min
Aug 28, 4:51 PM EDT	Special Weather Statement	ILN	Licking	24 min
Aug 28, 4:57 PM EDT	Special Weather Statement	ILN	Clermont	33 min
Aug 28, 5:18 PM EDT	Special Weather Statement	ILN	Licking	27 min
Aug 28, 6:04 PM EDT	Special Weather Statement	ILN	Highland	26 min
Aug 28, 6:29 PM EDT	Special Weather Statement	ILN	Ross	31 min
Aug 28, 6:56 PM EDT	Special Weather Statement	ILN	Pike, Ross	34 min
Aug 28, 7:16 PM EDT	Special Weather Statement	ILN	Pickaway	29 min
Aug 28, 7:28 PM EDT	Special Weather Statement	ILN	Hocking	32 min
Aug 28, 7:44 PM EDT	Special Weather Statement	ILN	Fairfield, Licking	31 min
Aug 28, 2:29 PM EDT	Special Weather Statement	ILN	Boone	31 min
Aug 28, 4:29 PM EDT	Special Weather Statement	ILN	Grant, Pendleton	31 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2020 Every 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.