Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 49, NWS Wilmington, OH

June 29, 2021Boone County, Campbell County, Kenton County, Kentucky; Hamilton County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jun 29, 2021, 6:31 PM EDT for Boone County, Campbell County, Kenton County, Kentucky; Hamilton County, Ohio. It was in force for 44 min. 2 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: Jun 29, 2021, 6:31 PM EDT (22:31 UTC)
Expired: Jun 29, 2021, 7:15 PM EDT
In force: 44 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Boone County, KY, Campbell County, KY, Kenton County, KY, Hamilton County, OH

The radar

The Cincinnati radar (KILN), 63 km from the middle of the area, began a volume at 22:31 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
Jun 29, 6:34 PM EDT	TSTM WND DMG	1 Nne Delhi Township, OH	TREE DOWN ON JULMAR DR. TIME EST FROM RADAR.
Jun 29, 6:55 PM EDT	TSTM WND DMG	4 Wnw Finneytown, OH	LARGE TREE BRANCHES DOWN IN YARD.

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 12:00Z, 10.5 hours before the alert went out and 65 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: 1541 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 1248 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 7 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

921 
WUUS51 KILN 292231
SVRILN
KYC015-037-117-OHC061-292315-
/O.NEW.KILN.SV.W.0049.210629T2231Z-210629T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wilmington OH
631 PM EDT Tue Jun 29 2021

The National Weather Service in Wilmington has issued a

* Severe Thunderstorm Warning for...
  Northern Kenton County in northern Kentucky...
  Northern Campbell County in northern Kentucky...
  Northern Boone County in northern Kentucky...
  Hamilton County in southwestern Ohio...

* Until 715 PM EDT.

* At 630 PM EDT, a severe thunderstorm was located over Delhi
  Township, moving northeast at 15 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and power lines.

* Locations impacted include...
  Cincinnati, Covington, Florence, Norwood, Forest Park, Erlanger,
  Fort Thomas, Newport, Sharonville, Blue Ash, Loveland, Springdale,
  Reading, Montgomery, North College Hill, Madeira, Edgewood,
  Elsmere, Wyoming and Cheviot.

This includes the following Interstates...
 I-71 in Ohio between mile markers 0 and 19.
 I-74 in Ohio between mile markers 7 and 19.
 I-75 in Kentucky between mile markers 182 and 191.
 I-75 in Ohio between mile markers 0 and 17.

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 3930 8473 3930 8464 3931 8463 3931 8461
      3929 8429 3923 8430 3922 8432 3921 8430
      3915 8431 3900 8446 3901 8475
TIME...MOT...LOC 2230Z 203DEG 13KT 3911 8460 

HAIL...0.75IN
WIND...60MPH
 
$$

Hatzos

4 follow-up statements

264 
WWUS51 KILN 292244
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
644 PM EDT Tue Jun 29 2021

KYC015-037-117-OHC061-292315-
/O.CON.KILN.SV.W.0049.000000T0000Z-210629T2315Z/
Kenton KY-Campbell KY-Boone KY-Hamilton OH-
644 PM EDT Tue Jun 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR NORTHERN KENTON...NORTHERN CAMPBELL...NORTHERN BOONE AND HAMILTON
COUNTIES...

At 644 PM EDT, a severe thunderstorm was located over Cheviot, moving
northeast at 15 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and power lines.

Locations impacted include...
Cincinnati, Covington, Norwood, Forest Park, Erlanger, Fort Thomas,
Newport, Sharonville, Blue Ash, Loveland, Springdale, Reading,
Montgomery, North College Hill, Madeira, Wyoming, Cheviot, Fort
Mitchell, Villa Hills and Highland Heights.

This includes the following Interstates...
 I-71 in Ohio between mile markers 0 and 19.
 I-74 in Ohio between mile markers 7 and 19.
 I-75 in Kentucky between mile markers 186 and 191.
 I-75 in Ohio between mile markers 0 and 17.

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 3930 8473 3930 8464 3931 8463 3931 8461
      3929 8429 3923 8430 3922 8432 3921 8430
      3915 8431 3903 8443 3905 8475
TIME...MOT...LOC 2244Z 206DEG 12KT 3915 8459 

HAIL...0.75IN
WIND...60MPH
 
$$

Hatzos

677 
WWUS51 KILN 292256
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
656 PM EDT Tue Jun 29 2021

KYC015-037-117-292306-
/O.CAN.KILN.SV.W.0049.000000T0000Z-210629T2315Z/
Kenton KY-Campbell KY-Boone KY-
656 PM EDT Tue Jun 29 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN KENTON...NORTHERN
CAMPBELL AND NORTHERN BOONE 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 3930 8473 3930 8464 3931 8461 3929 8429
      3923 8430 3922 8432 3921 8430 3915 8431
      3911 8444 3912 8446 3912 8448 3909 8451
      3910 8455 3908 8458 3907 8461 3910 8468
      3915 8474
TIME...MOT...LOC 2256Z 207DEG 17KT 3919 8454 

$$

OHC061-292315-
/O.CON.KILN.SV.W.0049.000000T0000Z-210629T2315Z/
Hamilton OH-
656 PM EDT Tue Jun 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR HAMILTON COUNTY...

At 656 PM EDT, a severe thunderstorm was located over North College
Hill, moving northeast at 20 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and power lines.

Locations impacted include...
Cincinnati, Norwood, Forest Park, Sharonville, Blue Ash, Loveland,
Springdale, Reading, Montgomery, North College Hill, Madeira,
Wyoming, Cheviot, Villa Hills, Mount Healthy, Deer Park, Dayton,
Ludlow, Finneytown and Mariemont.

This includes the following Interstates...
 I-71 in Ohio between mile markers 1 and 19.
 I-74 in Ohio between mile markers 7 and 19.
 I-75 in Ohio between mile markers 1 and 17.

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 3930 8473 3930 8464 3931 8461 3929 8429
      3923 8430 3922 8432 3921 8430 3915 8431
      3911 8444 3912 8446 3912 8448 3909 8451
      3910 8455 3908 8458 3907 8461 3910 8468
      3915 8474
TIME...MOT...LOC 2256Z 207DEG 17KT 3919 8454 

HAIL...<.75IN
WIND...60MPH
 
$$

Hatzos

139 
WWUS51 KILN 292303
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
703 PM EDT Tue Jun 29 2021

OHC061-292315-
/O.CON.KILN.SV.W.0049.000000T0000Z-210629T2315Z/
Hamilton OH-
703 PM EDT Tue Jun 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR NORTHEASTERN HAMILTON COUNTY...

At 703 PM EDT, a severe thunderstorm was located over Sharonville, 
moving northeast at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and power lines.

Locations impacted include...
Fairfield, Norwood, Forest Park, Sharonville, Blue Ash, Loveland, 
Springdale, Reading, Montgomery, North College Hill, Madeira, 
Wyoming, Mount Healthy, Deer Park, Dayton, Finneytown, Mariemont, 
Terrace Park and Highpoint.

This includes the following Interstates...
 I-71 in Ohio between mile markers 4 and 19.
 I-74 in Ohio between mile markers 17 and 19.
 I-75 in Ohio between mile markers 4 and 17.

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 3929 8429 3923 8430 3922 8432 3921 8430
      3915 8431 3911 8444 3912 8446 3912 8448
      3916 8458 3931 8457
TIME...MOT...LOC 2303Z 226DEG 26KT 3928 8435 

HAIL...<.75IN
WIND...60MPH
 
$$

Hatzos

463 
WWUS51 KILN 292309
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
709 PM EDT Tue Jun 29 2021

OHC061-292319-
/O.EXP.KILN.SV.W.0049.000000T0000Z-210629T2315Z/
Hamilton OH-
709 PM EDT Tue Jun 29 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HAMILTON COUNTY
WILL EXPIRE AT 715 PM EDT...
    
This warning has been replaced with an additional severe 
thunderstorm warning for northeastern Hamilton County until 800 PM.

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 3929 8429 3923 8430 3922 8432 3921 8430
      3915 8431 3911 8444 3912 8446 3912 8448
      3916 8458 3931 8457
TIME...MOT...LOC 2309Z 203DEG 13KT 3929 8434 

$$

Hatzos

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 6:14 PM EDT	Special Weather Statement	ILN	Boone	31 min
Jun 29, 6:53 PM EDT	Areal Flood Advisory	ILN	Boone, Kenton	3 hr
Jun 29, 2:02 PM EDT	Special Weather Statement	ILN	Union	28 min
Jun 29, 2:28 PM EDT	Special Weather Statement	ILN	Delaware	32 min
Jun 29, 4:03 PM EDT	Special Weather Statement	ILN	Delaware	27 min
Jun 29, 4:06 PM EDT	Severe Thunderstorm Warning	ILN	Delaware	39 min
Jun 29, 4:20 PM EDT	Areal Flood Advisory	ILN	Delaware	3 hr
Jun 29, 4:30 PM EDT	Severe Thunderstorm Warning	ILN	Clark, Greene	45 min
Jun 29, 4:43 PM EDT	Special Weather Statement	ILN	Union	32 min
Jun 29, 4:44 PM EDT	Special Weather Statement	ILN	Fayette	31 min
Jun 29, 5:12 PM EDT	Severe Thunderstorm Warning	ILN	Champaign, Clark, Logan, Madison, Union	36 min
Jun 29, 5:21 PM EDT	Areal Flood Advisory	ILN	Champaign, Delaware, Logan, Union	3 hr
Jun 29, 5:47 PM EDT	Special Weather Statement	ILN	Champaign, Union	28 min
Jun 29, 5:55 PM EDT	Special Weather Statement	ILN	Warren	35 min
Jun 29, 5:57 PM EDT	Special Weather Statement	ILN	Fayette	33 min
Jun 29, 6:38 PM EDT	Areal Flood Advisory	ILN	Clinton, Fayette	3 hr
Jun 29, 6:54 PM EDT	Special Weather Statement	ILN	Franklin	36 min
Jun 29, 7:00 PM EDT	Special Weather Statement	ILN	Warren	30 min
Jun 29, 7:08 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Clermont, Hamilton, Warren	52 min
Jun 29, 7:14 PM EDT	Special Weather Statement	ILN	Clinton	31 min
Jun 29, 7:20 PM EDT	Special Weather Statement	ILN	Hamilton	25 min
Jun 29, 7:33 PM EDT	Areal Flood Advisory	ILN	Butler, Warren	2 hr
Jun 29, 7:39 PM EDT	Special Weather Statement	ILN	Montgomery	36 min
Jun 29, 7:40 PM EDT	Special Weather Statement	ILN	Clinton	35 min
Jun 29, 7:55 PM EDT	Areal Flood Advisory	ILN	Clinton	106 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2021 Severe Thunderstorm Warnings in Ohio, 2021 Every 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.