Alert archive / Ohio / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 191, NWS Wilmington, OH

August 1, 2020Pike County, Scioto County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Aug 1, 2020, 3:39 PM EDT for Pike County, Scioto County, Ohio. It was in force for 36 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 1, 2020, 3:39 PM EDT (19:39 UTC)
Expired: Aug 1, 2020, 4:15 PM EDT
In force: 36 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Pike County, OH, Scioto County, OH

The radar

The Cincinnati radar (KILN), 87 km from the middle of the area, began a volume at 19:39 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 86 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: 31 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 722 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 125 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 1, 2:32 PM EDT, 1 hour 7 minutes earlier.

Area forecast discussion, Aug 1, 2:32 PM EDT, 1 hour 7 minutes before

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Hazardous weather outlook, Aug 1, 5:52 AM EDT, 9 hours 47 minutes before

Hazardous Weather Outlook
National Weather Service Wilmington OH
552 AM EDT Sat Aug 1 2020

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-021000-
Wayne-Fayette IN-Union IN-Franklin IN-Ripley-Dearborn-Ohio-
Switzerland-Carroll-Gallatin-Boone-Kenton-Campbell-Owen-Grant-
Pendleton-Bracken-Robertson-Mason-Lewis-Hardin-Mercer-Auglaize-Darke-
Shelby-Logan-Union OH-Delaware-Miami-Champaign-Clark-Madison-
Franklin OH-Licking-Preble-Montgomery-Greene-Fayette OH-Pickaway-
Fairfield-Butler-Warren-Clinton-Ross-Hocking-Hamilton-Clermont-Brown-
Highland-Adams-Pike-Scioto-
552 AM EDT Sat Aug 1 2020

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

.DAY ONE...Today and tonight.

Thunderstorms are expected today, with a few severe storms possible
during the afternoon and evening. The main threat will be damaging
winds. A tornado can not be ruled out. Also, heavy rain and localized
flooding will be possible.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

In the hours before

Special weather statement, Aug 1, 2:02 PM EDT, 1 hour 37 minutes before

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Special weather statement, Aug 1, 2:29 PM EDT, 1 hour 10 minutes before

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Special weather statement, Aug 1, 3:05 PM EDT, 34 minutes before

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Special weather statement, Aug 1, 3:28 PM EDT, 11 minutes before

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Special weather statement, Aug 1, 3:35 PM EDT, 4 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 1, 2:02 PM EDT	Special Weather Statement	ILN	Adams	28 min
Aug 1, 2:29 PM EDT	Special Weather Statement	ILN	Adams	31 min
Aug 1, 2:55 PM EDT	Severe Thunderstorm Warning	ILN	Pike, Scioto	35 min
Aug 1, 3:05 PM EDT	Special Weather Statement	ILN	Adams	25 min
Aug 1, 3:28 PM EDT	Special Weather Statement	ILN	Scioto	32 min
Aug 1, 3:35 PM EDT	Special Weather Statement	ILN	Highland	25 min
Aug 1, 4:05 PM EDT	Special Weather Statement	ILN	Brown	25 min
Aug 1, 4:28 PM EDT	Special Weather Statement	ILN	Brown, Clermont	32 min
Aug 1, 4:49 PM EDT	Special Weather Statement	ILN	Miami	26 min
Aug 1, 5:05 PM EDT	Special Weather Statement	ILN	Montgomery, Preble	25 min
Aug 1, 5:11 PM EDT	Severe Thunderstorm Warning	ILN	Darke, Montgomery, Preble	49 min
Aug 1, 5:12 PM EDT	Special Weather Statement	ILN	Miami	33 min
Aug 1, 5:13 PM EDT	Tornado Warning	ILN	Montgomery, Preble	32 min
Aug 1, 5:51 PM EDT	Special Weather Statement	ILN	Montgomery	24 min
Aug 1, 5:52 PM EDT	Special Weather Statement	ILN	Hardin	38 min
Aug 1, 7:25 PM EDT	Special Weather Statement	ILN	Delaware	20 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.