Alert archive / Ohio / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 14, NWS Cleveland, OH

June 21, 20215 counties in Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Jun 21, 2021, 12:43 PM EDT for 5 counties in Ohio. It was in force for 47 min. 1 report 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 21, 2021, 12:43 PM EDT (16:43 UTC)
Expired: Jun 21, 2021, 1:30 PM EDT
In force: 47 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Mahoning County, OH, Medina County, OH, Portage County, OH, Stark County, OH, Summit County, OH

The radar

The Cleveland radar (KCLE), 59 km from the middle of the area, began a volume at 16:46 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 21, 1:09 PM EDT	TSTM WND DMG	1 Se Kent, OH	TREE DOWN ON 3 VEHICLES ON THE KENT STATE UNIVERSITY CAMPUS. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jun 21, 12:31 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 4.7 hours before the alert went out and 127 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: 931 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 988 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 260 m²/s²
0-3 km storm-relative helicity: 277 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

As transmitted.

751 
WUUS51 KCLE 211643
SVRCLE
OHC099-103-133-151-153-211730-
/O.NEW.KCLE.SV.W.0014.210621T1643Z-210621T1730Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cleveland OH
1243 PM EDT Mon Jun 21 2021

The National Weather Service in Cleveland has issued a

* Severe Thunderstorm Warning for...
  Southern Portage County in northeastern Ohio...
  Western Mahoning County in northeastern Ohio...
  Southeastern Medina County in northeastern Ohio...
  Northeastern Stark County in northeastern Ohio...
  Southern Summit County in northeastern Ohio...

* Until 130 PM EDT.

* At 1243 PM EDT, a severe thunderstorm was located over Barberton,
  or near Akron, moving east at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Akron, Ravenna, Cuyahoga Falls, Kent, Barberton, Green, Alliance,
  Wadsworth, Tallmadge, Sebring, Mogadore, Hartville, Stow, New
  Franklin, Norton, Brimfield, Fairlawn, Randolph, Munroe Falls and
  Lakemore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4094 8165 4099 8165 4099 8176 4112 8178
      4117 8100 4113 8099 4113 8092 4091 8091
TIME...MOT...LOC 1643Z 268DEG 35KT 4103 8162 

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

Jaszka

2 follow-up statements

906 
WWUS51 KCLE 211658
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
1258 PM EDT Mon Jun 21 2021

OHC103-211708-
/O.CAN.KCLE.SV.W.0014.000000T0000Z-210621T1730Z/
Medina OH-
1258 PM EDT Mon Jun 21 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MEDINA COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
northeastern Ohio.

LAT...LON 4097 8156 4103 8162 4111 8154 4117 8100
      4113 8099 4113 8092 4091 8091
TIME...MOT...LOC 1658Z 268DEG 35KT 4104 8142 

$$

OHC099-133-151-153-211730-
/O.CON.KCLE.SV.W.0014.000000T0000Z-210621T1730Z/
Portage OH-Mahoning OH-Stark OH-Summit OH-
1258 PM EDT Mon Jun 21 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM EDT
FOR SOUTHERN PORTAGE...WESTERN MAHONING...NORTHEASTERN STARK AND
SOUTHEASTERN SUMMIT COUNTIES...

At 1258 PM EDT, a severe thunderstorm was located over Mogadore, or
near Akron, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Akron, Ravenna, Kent, Barberton, Green, Alliance, Tallmadge, Sebring,
Mogadore, Hartville, Norton, Brimfield, Randolph, Lakemore, Atwater,
Edinburg, Craig Beach, Beloit, Deerfield and Limaville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4097 8156 4103 8162 4111 8154 4117 8100
      4113 8099 4113 8092 4091 8091
TIME...MOT...LOC 1658Z 268DEG 35KT 4104 8142 

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

Kahn

407 
WWUS51 KCLE 211714
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
114 PM EDT Mon Jun 21 2021

OHC153-211724-
/O.CAN.KCLE.SV.W.0014.000000T0000Z-210621T1730Z/
Summit OH-
114 PM EDT Mon Jun 21 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SUMMIT COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
northeastern Ohio.

LAT...LON 4096 8142 4098 8142 4099 8139 4105 8135
      4112 8139 4117 8100 4113 8099 4113 8092
      4091 8091
TIME...MOT...LOC 1714Z 268DEG 35KT 4105 8121 

$$

OHC099-133-151-211730-
/O.CON.KCLE.SV.W.0014.000000T0000Z-210621T1730Z/
Portage OH-Mahoning OH-Stark OH-
114 PM EDT Mon Jun 21 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM EDT
FOR SOUTHERN PORTAGE...WESTERN MAHONING AND NORTHEASTERN STARK
COUNTIES...

At 114 PM EDT, a severe thunderstorm was located 8 miles south of
Ravenna, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Kent, Alliance, Tallmadge, Sebring, Hartville, Brimfield, Randolph,
Atwater, Edinburg, Craig Beach, Beloit, Deerfield, Limaville,
Wayland, Berlin Center and Uniontown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4096 8142 4098 8142 4099 8139 4105 8135
      4112 8139 4117 8100 4113 8099 4113 8092
      4091 8091
TIME...MOT...LOC 1714Z 268DEG 35KT 4105 8121 

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

Kahn

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 8:59 PM EDT	Special Weather Statement	CLE	Lucas	16 min
Jun 20, 9:18 PM EDT	Special Marine Warning	CLE		70 min
Jun 20, 9:34 PM EDT	Special Weather Statement	CLE	Lucas	41 min
Jun 20, 10:02 PM EDT	Severe Thunderstorm Warning	CLE	Lucas, Wood	46 min
Jun 20, 10:44 PM EDT	Special Marine Warning	CLE		46 min
Jun 20, 10:54 PM EDT	Special Marine Warning	CLE		96 min
Jun 20, 11:03 PM EDT	Special Marine Warning	CLE		87 min
Jun 20, 11:52 PM EDT	Special Marine Warning	CLE		113 min
Jun 21, 12:18 AM EDT	Special Weather Statement	CLE	Lucas	42 min
Jun 21, 12:40 AM EDT	Special Weather Statement	CLE	Ottawa	50 min
Jun 21, 1:37 AM EDT	Special Marine Warning	CLE		113 min
Jun 21, 2:19 AM EDT	Special Marine Warning	CLE		116 min
Jun 21, 3:52 AM EDT	Severe Thunderstorm Warning	CLE	Lucas, Ottawa, Sandusky, Wood	68 min
Jun 21, 4:03 AM EDT	Special Marine Warning	CLE		86 min
Jun 21, 4:17 AM EDT	Special Weather Statement	CLE	Hancock, Wood	43 min
Jun 21, 4:57 AM EDT	Special Weather Statement	CLE	Erie, Hancock, Huron, Sandusky, Seneca, Wyandot	63 min
Jun 21, 5:05 AM EDT	Special Marine Warning	CLE		115 min
Jun 21, 5:17 AM EDT	Severe Thunderstorm Warning	CLE	Erie, Huron, Sandusky, Seneca	43 min
Jun 21, 5:38 AM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga, Lorain	67 min
Jun 21, 6:14 AM EDT	Special Marine Warning	CLE		2 hr
Jun 21, 6:26 AM EDT	Severe Thunderstorm Warning	CLE	Geauga, Lake	49 min
Jun 21, 6:29 AM EDT	Special Weather Statement	CLE	Ashland, Medina, Portage, Summit, Wayne	31 min
Jun 21, 6:43 AM EDT	Severe Thunderstorm Warning	CLE	Geauga, Portage, Summit	47 min
Jun 21, 6:51 AM EDT	Severe Thunderstorm Warning	CLE	Ashtabula, Trumbull	54 min
Jun 21, 7:02 AM EDT	Special Weather Statement	CLE	Stark	43 min
Jun 21, 7:31 AM EDT	Special Weather Statement	CLE	Mahoning	44 min
Jun 21, 9:52 AM EDT	Special Weather Statement	CLE	Stark	23 min
Jun 21, 10:12 AM EDT	Special Weather Statement	CLE	Mahoning	48 min
Jun 21, 11:47 AM EDT	Special Weather Statement	CLE	Cuyahoga	43 min
Jun 21, 11:51 AM EDT	Special Weather Statement	CLE	Ashland, Richland	39 min
Jun 21, 12:13 PM EDT	Special Weather Statement	CLE	Geauga, Lake	47 min
Jun 21, 12:17 PM EDT	Severe Thunderstorm Warning	CLE	Ashland, Holmes, Richland, Wayne	43 min
Jun 21, 12:48 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula, Geauga, Trumbull	57 min
Jun 21, 12:52 PM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga, Geauga, Lake	34 min
Jun 21, 1:09 PM EDT	Severe Thunderstorm Warning	CLE	Mahoning, Portage, Stark, Trumbull	54 min
Jun 21, 1:15 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula	60 min
Jun 21, 1:20 PM EDT	Areal Flood Advisory	CLE	Ashtabula	5 hr
Jun 21, 1:31 PM EDT	Severe Thunderstorm Warning	CLE	Stark	29 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.