Alert archive / Kentucky / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 207, NWS Wilmington, OH

August 25, 2020Boone County, Kenton County, Kentucky

NWS Wilmington, OH issued this severe thunderstorm warning at Aug 25, 2020, 6:19 PM EDT for Boone County, Kenton County, Kentucky. It was in force for 17 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 25, 2020, 6:19 PM EDT (22:19 UTC)
Expired
Aug 25, 2020, 6:36 PM EDT
In force
17 min
Issued by
NWS Wilmington, OH
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Boone County, KY, Kenton County, KY

The radar

The Cincinnati radar (KILN), 87 km from the middle of the area, began a volume at 22:21 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, 10.3 hours before the alert went out and 89 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 2020-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1663 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 2020-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 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
1663 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
1013 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
56 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 25, 5:57 PM EDT, 22 minutes earlier.

Area forecast discussion, Aug 25, 5:57 PM EDT, 22 minutes before
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Hazardous weather outlook, Aug 25, 5:04 AM EDT, 13 hours 15 minutes before
Hazardous Weather Outlook
National Weather Service Wilmington OH
504 AM EDT Tue Aug 25 2020

OHZ026-034-035-042>046-051>056-061>065-073-074-082-260915-
Hardin-Mercer-Auglaize-Darke-Shelby-Logan-Union OH-Delaware-Miami-
Champaign-Clark-Madison-Franklin OH-Licking-Montgomery-Greene-
Fayette OH-Pickaway-Fairfield-Ross-Hocking-Pike-
504 AM EDT Tue Aug 25 2020

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

.DAY ONE...Today and tonight.

There is potential for strong to severe storms to develop this
afternoon, lingering into Tuesday evening. Damaging winds will be the
primary severe weather threat.

Heat indicies expected to be in the mid 90s.

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

Heat indicies expected to be in the mid 90s Wednesday.

.SPOTTER INFORMATION STATEMENT...

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

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ060-070>072-077>081-088-
260915-
Wayne-Fayette IN-Union IN-Franklin IN-Ripley-Dearborn-Ohio-
Switzerland-Carroll-Gallatin-Boone-Kenton-Campbell-Owen-Grant-
Pendleton-Bracken-Robertson-Mason-Lewis-Preble-Butler-Warren-Clinton-
Hamilton-Clermont-Brown-Highland-Adams-Scioto-
504 AM EDT Tue Aug 25 2020

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

.DAY ONE...Today and tonight.

Heat indicies expected to be in the mid 90s.

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

Heat indicies expected to be in the mid 90s Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Aug 25, 5:21 PM EDT, 58 minutes before
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Local storm report, Aug 25, 5:31 PM EDT, 48 minutes before
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Special weather statement, Aug 25, 5:32 PM EDT, 47 minutes before
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Special weather statement, Aug 25, 6:00 PM EDT, 19 minutes before
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Special weather statement, Aug 25, 6:05 PM EDT, 14 minutes before
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Local storm report, Aug 25, 6:13 PM EDT, 6 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 25, 1:45 PM EDTSevere Thunderstorm WarningILNClark, Greene27 min
Aug 25, 3:14 PM EDTSpecial Weather StatementILNFairfield31 min
Aug 25, 3:24 PM EDTSpecial Weather StatementILNLicking36 min
Aug 25, 3:47 PM EDTSevere Thunderstorm WarningILNClinton43 min
Aug 25, 3:49 PM EDTSevere Thunderstorm WarningILNFairfield, Hocking41 min
Aug 25, 4:17 PM EDTSpecial Weather StatementILNLicking28 min
Aug 25, 4:23 PM EDTSevere Thunderstorm WarningILNButler, Preble40 min
Aug 25, 4:26 PM EDTSevere Thunderstorm WarningILNClinton, Highland, Warren32 min
Aug 25, 4:34 PM EDTSevere Thunderstorm WarningILNFairfield, Hocking, Licking41 min
Aug 25, 4:35 PM EDTSpecial Weather StatementILNPike, Scioto25 min
Aug 25, 4:57 PM EDTSpecial Weather StatementILNWarren33 min
Aug 25, 5:02 PM EDTSpecial Weather StatementILNScioto28 min
Aug 25, 5:14 PM EDTSpecial Weather StatementILNHocking31 min
Aug 25, 5:15 PM EDTSpecial Weather StatementILNHighland30 min
Aug 25, 5:32 PM EDTSpecial Weather StatementILNAdams28 min
Aug 25, 6:00 PM EDTSpecial Weather StatementILNAdams30 min
Aug 25, 6:05 PM EDTSpecial Weather StatementILNBoone25 min
Aug 25, 6:42 PM EDTSpecial Weather StatementILNLewis33 min
Aug 25, 7:23 PM EDTSpecial Weather StatementILNFleming37 min
Aug 25, 4:33 PM EDTSevere Thunderstorm WarningILNFayette, Franklin, Union42 min
Aug 25, 5:21 PM EDTSpecial Weather StatementILNFranklin24 min
Aug 25, 5:26 PM EDTSevere Thunderstorm WarningILNFranklin49 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 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.