Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 99, NWS Wilmington, OH
NWS Wilmington, OH issued this severe thunderstorm warning at Aug 12, 2021, 9:24 PM EDT for 6 counties in Kentucky. It was in force for 51 min. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 12, 2021, 9:24 PM EDT (01:24 UTC)
- Expired
- Aug 12, 2021, 10:15 PM EDT
- In force
- 51 min
- Issued by
- NWS Wilmington, OH
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Campbell County, KY, Gallatin County, KY, Grant County, KY, Kenton County, KY, Owen County, KY, Pendleton County, KY
The radar
The Cincinnati radar (KILN), 112 km from the middle of the area, began a volume at 01:27 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 12, 9:36 PM EDT | TSTM WND DMG | 4 Wnw Twin Bridges, KY | MULTIPLE TREES DOWN IN JONESVILLE |
| Aug 12, 9:40 PM EDT | TSTM WND DMG | Butler, KY | MULTIPLE TREES AND POWERLINES BLOWN DOWN. DEMOSSVILLE AND BUTLER AREAS HARDEST HIT. |
| Aug 12, 9:46 PM EDT | TSTM WND DMG | 2 S Eagle Hill, KY | TREE DOWN ON CALENDAR ROAD |
| Aug 12, 9:53 PM EDT | TSTM WND DMG | Dry Ridge, KY | MULTIPLE TREES DOWN ACROSS TOWN |
| Aug 12, 10:03 PM EDT | TSTM WND DMG | Sherman, KY | POWER PULLS SNAPPED ALONG DIXIE HIGHWAY NEAR SHERMAN. TIME ESTIMATED FROM RADAR DATA. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.4 hours before the alert went out and 114 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.
- Mixed-layer CAPE
- 2022 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 1499 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.7
The text
As transmitted.
723
WUUS51 KILN 130124
SVRILN
KYC037-077-081-117-187-191-130215-
/O.NEW.KILN.SV.W.0099.210813T0124Z-210813T0215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wilmington OH
924 PM EDT Thu Aug 12 2021
The National Weather Service in Wilmington has issued a
* Severe Thunderstorm Warning for...
Southern Kenton County in northern Kentucky...
Southern Campbell County in northern Kentucky...
Grant County in northern Kentucky...
Central Owen County in northern Kentucky...
Northwestern Pendleton County in northern Kentucky...
Eastern Gallatin County in northern Kentucky...
* Until 1015 PM EDT.
* At 924 PM EDT, a severe thunderstorm was located near Owenton,
moving northeast at 25 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* Locations impacted include...
Williamstown, Crittenden, Dry Ridge, Owenton, Butler, Glencoe,
Sparta, Gratz, Stewartsville, Northcutt, Wheatley, Bracht,
Gardnersville, New Liberty, Fiskburg, Elmer Davis Lake, Sherman,
Elliston, Goforth and Greenwood.
This includes I-75 in Kentucky between mile markers 151 and 167.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.
&&
LAT...LON 3860 8503 3865 8496 3865 8494 3867 8494
3876 8479 3878 8466 3879 8465 3880 8461
3883 8459 3888 8442 3877 8433 3863 8440
3846 8495
TIME...MOT...LOC 0124Z 246DEG 22KT 3858 8491
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hatzos4 follow-up statements
313
WWUS51 KILN 130135
SVSILN
Severe Weather Statement
National Weather Service Wilmington OH
935 PM EDT Thu Aug 12 2021
KYC037-077-081-117-187-191-130215-
/O.CON.KILN.SV.W.0099.000000T0000Z-210813T0215Z/
Kenton KY-Campbell KY-Grant KY-Owen KY-Pendleton KY-Gallatin KY-
935 PM EDT Thu Aug 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT
FOR SOUTHERN KENTON...SOUTHERN CAMPBELL...GRANT...NORTHERN OWEN...
NORTHWESTERN PENDLETON AND EASTERN GALLATIN COUNTIES...
At 934 PM EDT, severe thunderstorms were located near Owenton and
near Crittenden. These storms were moving northeast at 25 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
Locations impacted include...
Williamstown, Crittenden, Dry Ridge, Owenton, Butler, Glencoe,
Sparta, Stewartsville, Northcutt, Wheatley, Bracht, Gardnersville,
New Liberty, Fiskburg, Elmer Davis Lake, Sherman, Elliston, Goforth,
Greenwood and Cherry Grove.
This includes I-75 in Kentucky between mile markers 151 and 167.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.
&&
LAT...LON 3860 8503 3865 8496 3865 8494 3867 8494
3876 8479 3878 8466 3879 8465 3880 8461
3883 8459 3888 8442 3877 8433 3863 8440
3850 8483 3849 8496
TIME...MOT...LOC 0134Z 242DEG 22KT 3862 8481
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hatzos671
WWUS51 KILN 130153
SVSILN
Severe Weather Statement
National Weather Service Wilmington OH
953 PM EDT Thu Aug 12 2021
KYC037-077-081-117-187-191-130215-
/O.CON.KILN.SV.W.0099.000000T0000Z-210813T0215Z/
Kenton KY-Campbell KY-Grant KY-Owen KY-Pendleton KY-Gallatin KY-
953 PM EDT Thu Aug 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT
FOR SOUTHERN KENTON...SOUTHERN CAMPBELL...GRANT...NORTHERN OWEN...
NORTHWESTERN PENDLETON AND EASTERN GALLATIN COUNTIES...
At 953 PM EDT, a severe thunderstorm was located near Dry Ridge,
moving east at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
Locations impacted include...
Williamstown, Crittenden, Dry Ridge, Owenton, Butler, Glencoe,
Sparta, Stewartsville, Northcutt, Wheatley, Bracht, Gardnersville,
New Liberty, Fiskburg, Elmer Davis Lake, Sherman, Elliston, Goforth,
Greenwood and Cherry Grove.
This includes I-75 in Kentucky between mile markers 151 and 167.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.
&&
LAT...LON 3860 8503 3865 8496 3865 8494 3867 8494
3876 8479 3878 8466 3879 8465 3880 8461
3883 8459 3888 8442 3877 8433 3868 8438
3858 8458 3850 8483 3849 8496
TIME...MOT...LOC 0153Z 248DEG 22KT 3868 8467
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hatzos280
WWUS51 KILN 130203
SVSILN
Severe Weather Statement
National Weather Service Wilmington OH
1003 PM EDT Thu Aug 12 2021
KYC077-187-130213-
/O.CAN.KILN.SV.W.0099.000000T0000Z-210813T0215Z/
Owen KY-Gallatin KY-
1003 PM EDT Thu Aug 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN OWEN AND EASTERN
GALLATIN COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3856 8468 3862 8478 3872 8479 3876 8478
3878 8466 3879 8465 3880 8461 3883 8459
3888 8442 3877 8433 3868 8438 3858 8458
3855 8468
TIME...MOT...LOC 0203Z 242DEG 23KT 3873 8460
$$
KYC037-081-117-191-130215-
/O.CON.KILN.SV.W.0099.000000T0000Z-210813T0215Z/
Kenton KY-Campbell KY-Grant KY-Pendleton KY-
1003 PM EDT Thu Aug 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT
FOR SOUTHERN KENTON...SOUTHERN CAMPBELL...GRANT AND NORTHWESTERN
PENDLETON COUNTIES...
At 1003 PM EDT, a severe thunderstorm was located near Dry Ridge,
moving northeast at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
Locations impacted include...
Williamstown, Crittenden, Dry Ridge, Butler, Goforth, Stewartsville,
Greenwood, Cherry Grove, Morning View, Northcutt, Williamstown Lake,
Bracht, Gardnersville, Knoxville, Twin Bridges, Fiskburg, Gene Snyder
Airport, Holbrook, Sherman and Piner.
This includes I-75 in Kentucky between mile markers 151 and 167.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.
&&
LAT...LON 3856 8468 3862 8478 3872 8479 3876 8478
3878 8466 3879 8465 3880 8461 3883 8459
3888 8442 3877 8433 3868 8438 3858 8458
3855 8468
TIME...MOT...LOC 0203Z 242DEG 23KT 3873 8460
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hatzos155
WWUS51 KILN 130214
SVSILN
Severe Weather Statement
National Weather Service Wilmington OH
1014 PM EDT Thu Aug 12 2021
KYC037-081-117-191-130224-
/O.EXP.KILN.SV.W.0099.000000T0000Z-210813T0215Z/
Kenton KY-Campbell KY-Grant KY-Pendleton KY-
1014 PM EDT Thu Aug 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN KENTON...SOUTHERN
CAMPBELL...GRANT AND NORTHWESTERN PENDLETON COUNTIES WILL EXPIRE AT
1015 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However small hail
and gusty winds are still possible with this thunderstorm.
Please report previous wind damage or hail to the National Weather
Service by going to our website at weather.gov/iln and submitting
your report via social media.
LAT...LON 3856 8468 3862 8478 3872 8479 3876 8478
3878 8466 3879 8465 3880 8461 3883 8459
3888 8442 3877 8433 3868 8438 3858 8458
3855 8468
TIME...MOT...LOC 0214Z 246DEG 22KT 3875 8453
$$
HatzosThe office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 8:48 PM EDT | Special Weather Statement | ILN | Grant | 27 min |
| Aug 12, 9:09 PM EDT | Special Weather Statement | ILN | Grant | 21 min |
| Aug 12, 9:19 PM EDT | Special Weather Statement | ILN | Owen | 26 min |
| Aug 12, 10:14 PM EDT | Special Weather Statement | ILN | Pendleton | 31 min |
| Aug 12, 10:26 PM EDT | Special Weather Statement | ILN | Bracken | 34 min |
| Aug 13, 7:00 PM EDT | Special Weather Statement | ILN | Owen | 45 min |
| Aug 13, 7:56 PM EDT | Areal Flood Advisory | ILN | Grant, Owen | 3 hr |
Nearby
Severe Thunderstorm Warnings in Kentucky, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.