Alert archive / Ohio / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 50, NWS Wilmington, OH

June 29, 20214 counties in Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jun 29, 2021, 7:08 PM EDT for 4 counties in Ohio. It was in force for 52 min. 3 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, 7:08 PM EDT (23:08 UTC)
Expired: Jun 29, 2021, 8:00 PM EDT
In force: 52 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Butler County, OH, Clermont County, OH, Hamilton County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 38 km from the middle of the area, began a volume at 23:08 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, 7:19 PM EDT	HAIL 1	Landen, OH	TIME EST BY RADAR.
Jun 29, 7:20 PM EDT	HAIL 0.5	2 N Loveland, OH	HALF INCH HAIL.
Jun 29, 7:35 PM EDT	TSTM WND DMG	4 Nne Loveland, OH	ONE TREE DOWNED ON OLD 3C HWY. TIME OF EVENT ESTIMATED FROM RADAR.

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, 11.1 hours before the alert went out and 40 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.

319 
WUUS51 KILN 292308
SVRILN
OHC017-025-061-165-300000-
/O.NEW.KILN.SV.W.0050.210629T2308Z-210630T0000Z/

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

The National Weather Service in Wilmington has issued a

* Severe Thunderstorm Warning for...
  Northeastern Hamilton County in southwestern Ohio...
  Southeastern Butler County in southwestern Ohio...
  Northern Clermont County in southwestern Ohio...
  Warren County in southwestern Ohio...

* Until 800 PM EDT.

* At 708 PM EDT, a severe thunderstorm was located over Sixteen Mile
  Stand, 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...
  Mason, Lebanon, Sharonville, Monroe, Blue Ash, Loveland,
  Springdale, Reading, Montgomery, Madeira, Deer Park, West Chester,
  Morrow, Highpoint, Remington, Concorde Hills, Kings Island, Sixteen
  Mile Stand, Olde West Chester and Four Bridges.

This includes the following Interstates...
 I-71 in Ohio between mile markers 13 and 41.
 I-75 in Ohio between mile markers 15 and 25.

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 3920 8443 3934 8446 3950 8417 3945 8399
      3922 8401
TIME...MOT...LOC 2308Z 241DEG 22KT 3929 8431 

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

Hatzos

3 follow-up statements

436 
WWUS51 KILN 292314
SVSILN

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

OHC017-025-061-165-300000-
/O.CON.KILN.SV.W.0050.000000T0000Z-210630T0000Z/
Hamilton OH-Butler OH-Clermont OH-Warren OH-
714 PM EDT Tue Jun 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR NORTHEASTERN HAMILTON...SOUTHEASTERN BUTLER...NORTHERN CLERMONT
AND WARREN COUNTIES...

At 713 PM EDT, a severe thunderstorm was located over Kings Island,
moving northeast at 20 mph.

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

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vehicles is possible. Expect wind 
         damage to trees and power lines.

Locations impacted include...
Kings Island, Mason, Lebanon, Sharonville, Monroe, Blue Ash, 
Loveland, Springdale, Reading, Montgomery, Madeira, Deer Park, West 
Chester, Morrow, Highpoint, Remington, Concorde Hills, Sixteen Mile 
Stand, Olde West Chester and Four Bridges.

This includes the following Interstates...
 I-71 in Ohio between mile markers 13 and 41.
 I-75 in Ohio between mile markers 15 and 25.

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 3920 8443 3934 8446 3950 8417 3945 8399
      3922 8401
TIME...MOT...LOC 2313Z 235DEG 19KT 3931 8429 

HAIL...1.00IN
WIND...60MPH
 
$$

Hatzos

593 
WWUS51 KILN 292324
SVSILN

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

OHC017-025-061-165-300000-
/O.CON.KILN.SV.W.0050.000000T0000Z-210630T0000Z/
Hamilton OH-Butler OH-Clermont OH-Warren OH-
724 PM EDT Tue Jun 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR NORTHEASTERN HAMILTON...SOUTHEASTERN BUTLER...NORTHERN CLERMONT
AND WARREN COUNTIES...

At 724 PM EDT, a severe thunderstorm was located near Kings Island, 
moving northeast at 20 mph.

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

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vehicles is possible. Expect wind 
         damage to trees and power lines.

Locations impacted include...
Kings Island, Mason, Lebanon, Sharonville, Monroe, Loveland, 
Springdale, Reading, Montgomery, Madeira, Deer Park, West Chester, 
Morrow, Highpoint, Remington, Concorde Hills, Sixteen Mile Stand, 
Olde West Chester and Four Bridges.

This includes the following Interstates...
 I-71 in Ohio between mile markers 13 and 41.
 I-75 in Ohio between mile markers 15 and 25.

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 3920 8443 3934 8446 3950 8417 3945 8399
      3922 8401
TIME...MOT...LOC 2324Z 235DEG 16KT 3933 8424 

HAIL...1.00IN
WIND...60MPH
 
$$

Hatzos

750 
WWUS51 KILN 292350
SVSILN

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

OHC017-025-061-165-300000-
/O.EXP.KILN.SV.W.0050.000000T0000Z-210630T0000Z/
Hamilton OH-Butler OH-Clermont OH-Warren OH-
750 PM EDT Tue Jun 29 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HAMILTON...
SOUTHEASTERN BUTLER...NORTHERN CLERMONT AND WARREN COUNTIES WILL
EXPIRE AT 800 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 heavy rain
is 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 3920 8443 3934 8446 3950 8417 3945 8399
      3922 8401
TIME...MOT...LOC 2350Z 241DEG 22KT 3940 8407 

$$

Hatzos

The office that day

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

Issued	Product	Office	Counties	Lasted
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, 6:14 PM EDT	Special Weather Statement	ILN	Hamilton	31 min
Jun 29, 6:31 PM EDT	Severe Thunderstorm Warning	ILN	Hamilton	44 min
Jun 29, 6:38 PM EDT	Areal Flood Advisory	ILN	Clinton, Fayette	3 hr
Jun 29, 6:53 PM EDT	Areal Flood Advisory	ILN	Hamilton	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, 7:14 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 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.