Alert archive / Ohio / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 235, NWS Wilmington, OH

August 20, 2019Hamilton County, Ohio; Dearborn County, Indiana

NWS Wilmington, OH issued this severe thunderstorm warning at Aug 20, 2019, 4:10 PM EDT for Hamilton County, Ohio; Dearborn County, Indiana. It was in force for 35 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 20, 2019, 4:10 PM EDT (20:10 UTC)
Expired: Aug 20, 2019, 4:45 PM EDT
In force: 35 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Dearborn County, IN, Hamilton County, OH

The radar

The Cincinnati radar (KILN), 85 km from the middle of the area, began a volume at 20:10 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 20, 3:35 PM EDT	Severe Thunderstorm Watch	SPC	2 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.2 hours before the alert went out and 87 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: 1577 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 1197 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 32 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 20, 3:32 PM EDT, 38 minutes earlier.

Area forecast discussion, Aug 20, 3:32 PM EDT, 38 minutes before

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Hazardous weather outlook, Aug 20, 2:31 PM EDT, 1 hour 39 minutes before

Hazardous Weather Outlook
National Weather Service Wilmington OH
231 PM EDT Tue Aug 20 2019

INZ050-058-059-066-073>075-080-KYZ089>092-094-OHZ046-051>056-060>065-
070>072-077-211845-
Wayne-Fayette IN-Union IN-Franklin IN-Ripley-Dearborn-Ohio-
Switzerland-Carroll-Gallatin-Boone-Kenton-Owen-Delaware-Miami-
Champaign-Clark-Madison-Franklin OH-Licking-Preble-Montgomery-Greene-
Fayette OH-Pickaway-Fairfield-Butler-Warren-Clinton-Hamilton-
231 PM EDT Tue Aug 20 2019

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

.DAY ONE...This afternoon and tonight.

Scattered to numerous thunderstorms are expected this afternoon
through early evening. These storms will have the potential to
produce damaging wind gusts and some large hail.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Heat indices will be in the mid 90s Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon.

OHZ026-034-035-042>045-211845-
Hardin-Mercer-Auglaize-Darke-Shelby-Logan-Union OH-
231 PM EDT Tue Aug 20 2019

This Hazardous Weather Outlook is for Central Ohio and West Central
Ohio.

.DAY ONE...This afternoon and tonight.

Scattered to numerous thunderstorms are expected this afternoon
through early evening. These storms will have the potential to
produce damaging wind gusts and some large hail.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

There is a low probability for widespread hazardous weather.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon.

KYZ093-095>100-OHZ073-074-078>082-088-211845-
Campbell-Grant-Pendleton-Bracken-Robertson-Mason-Lewis-Ross-Hocking-
Clermont-Brown-Highland-Adams-Pike-Scioto-
231 PM EDT Tue Aug 20 2019

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

.DAY ONE...This afternoon and tonight.

Scattered to numerous thunderstorms are expected this afternoon
through early evening. These storms will have the potential to
produce damaging wind gusts and some large hail.

Additionally, heat indices in the upper 90s to around 100 degrees
will be possible through early this evening.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Heat indices will be in the mid 90s Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon.

In the hours before

Special weather statement, Aug 20, 3:35 PM EDT, 35 minutes before

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Local storm report, Aug 20, 3:41 PM EDT, 29 minutes before

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Special weather statement, Aug 20, 3:41 PM EDT, 29 minutes before

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Special weather statement, Aug 20, 3:44 PM EDT, 26 minutes before

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Special weather statement, Aug 20, 4:05 PM EDT, 5 minutes before

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Special weather statement, Aug 20, 4:07 PM EDT, 3 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 19, 11:11 PM EDT	Special Weather Statement	ILN	Ross	34 min
Aug 19, 11:44 PM EDT	Special Weather Statement	ILN	Ross	31 min
Aug 19, 11:50 PM EDT	Special Weather Statement	ILN	Pike	25 min
Aug 20, 12:16 AM EDT	Special Weather Statement	ILN	Hocking	29 min
Aug 20, 11:57 AM EDT	Special Weather Statement	ILN	Butler	18 min
Aug 20, 12:43 PM EDT	Special Weather Statement	ILN	Montgomery	17 min
Aug 20, 1:35 PM EDT	Special Weather Statement	ILN	Montgomery	25 min
Aug 20, 1:48 PM EDT	Special Weather Statement	ILN	Miami	27 min
Aug 20, 1:57 PM EDT	Special Weather Statement	ILN	Clark	33 min
Aug 20, 2:00 PM EDT	Severe Thunderstorm Warning	ILN	Clark, Greene	30 min
Aug 20, 2:26 PM EDT	Special Weather Statement	ILN	Champaign	34 min
Aug 20, 2:37 PM EDT	Special Weather Statement	ILN	Hamilton	23 min
Aug 20, 2:43 PM EDT	Severe Thunderstorm Warning	ILN	Clermont, Hamilton	32 min
Aug 20, 2:47 PM EDT	Special Weather Statement	ILN	Champaign	28 min
Aug 20, 3:19 PM EDT	Special Weather Statement	ILN	Warren	26 min
Aug 20, 3:35 PM EDT	Special Weather Statement	ILN	Franklin	25 min
Aug 20, 3:41 PM EDT	Special Weather Statement	ILN	Hamilton	34 min
Aug 20, 4:06 PM EDT	Severe Thunderstorm Warning	ILN	Clermont, Hamilton	39 min
Aug 20, 4:07 PM EDT	Special Weather Statement	ILN	Butler, Hamilton	23 min
Aug 20, 4:17 PM EDT	Special Weather Statement	ILN	Delaware	28 min
Aug 20, 4:26 PM EDT	Special Weather Statement	ILN	Butler	34 min
Aug 20, 4:29 PM EDT	Special Weather Statement	ILN	Warren	31 min
Aug 20, 4:39 PM EDT	Areal Flood Advisory	ILN	Hamilton	2 hr
Aug 20, 4:44 PM EDT	Special Weather Statement	ILN	Butler, Hamilton	31 min
Aug 20, 5:13 PM EDT	Special Weather Statement	ILN	Adams	32 min
Aug 20, 5:24 PM EDT	Special Weather Statement	ILN	Miami	36 min
Aug 20, 6:00 PM EDT	Special Weather Statement	ILN	Scioto	30 min
Aug 20, 6:32 PM EDT	Special Weather Statement	ILN	Scioto	28 min
Aug 20, 7:14 PM EDT	Special Weather Statement	ILN	Pike	31 min
Aug 20, 2:30 PM EDT	Special Weather Statement	ILN	Grant, Pendleton	30 min
Aug 20, 2:39 PM EDT	Special Weather Statement	ILN	Scott	21 min
Aug 20, 3:17 PM EDT	Special Weather Statement	ILN	Boone, Kenton	28 min
Aug 20, 5:37 PM EDT	Special Weather Statement	ILN	Lewis	23 min
Aug 20, 5:42 PM EDT	Special Weather Statement	ILN	Owen	33 min
Aug 20, 3:44 PM EDT	Special Weather Statement	ILN	Ripley	61 min
Aug 20, 4:05 PM EDT	Special Weather Statement	ILN	Franklin	25 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2019 Severe Thunderstorm Warnings in Indiana, 2019 Every severe thunderstorm warning in 2019

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.