Alert archive / Ohio / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 93, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Aug 12, 2021, 4:27 PM EDT for 4 counties in Ohio. It was in force for 63 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
- Aug 12, 2021, 4:27 PM EDT (20:27 UTC)
- Expired
- Aug 12, 2021, 5:30 PM EDT
- In force
- 63 min
- Issued by
- NWS Cleveland, OH
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Geauga County, OH, Portage County, OH, Summit County, OH, Trumbull County, OH
The radar
The Cleveland radar (KCLE), 82 km from the middle of the area, began a volume at 20:26 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, 4:44 PM EDT | TSTM WND DMG | Windham, OH | TREE FELL ONTO BACKYARD POOL. |
| Aug 12, 4:49 PM EDT | TSTM WND DMG | 2 N Braceville, OH | TREE DOWN ON WIRES. |
| Aug 12, 4:49 PM EDT | TSTM WND DMG | 3 Nnw Turnpike Intercha, OH | TREE DOWN ON WIRES. |
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 |
|---|---|---|---|
| Aug 12, 3:48 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 8.5 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
- 1075 J/kg
- Mixed-layer CIN
- -107 J/kg
- Mixed-layer LCL
- 890 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 163 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
The text
As transmitted.
657
WUUS51 KCLE 122027
SVRCLE
OHC055-133-153-155-122130-
/O.NEW.KCLE.SV.W.0093.210812T2027Z-210812T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cleveland OH
427 PM EDT Thu Aug 12 2021
The National Weather Service in Cleveland has issued a
* Severe Thunderstorm Warning for...
Northern Portage County in northeastern Ohio...
Trumbull County in northeastern Ohio...
Southeastern Geauga County in northeastern Ohio...
Northeastern Summit County in northeastern Ohio...
* Until 530 PM EDT.
* At 427 PM EDT, a severe thunderstorm was located over
Garrettsville, or 12 miles northeast of Ravenna, moving east at 40
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Expect damage to
trees and power lines.
* Locations impacted include...
Warren, Ravenna, Cuyahoga Falls, Kent, Hudson, Niles, Twinsburg,
Streetsboro, Hubbard, Cortland, Newton Falls, Lordstown,
Garrettsville, Mantua, West Farmington, Vienna Center, Hilltop,
Maplewood Park, Bristolville and Leavittsburg.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4114 8052 4113 8097 4117 8150 4133 8144
4145 8052
TIME...MOT...LOC 2027Z 258DEG 34KT 4131 8108
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Campbell5 follow-up statements
200
WWUS51 KCLE 122038
SVSCLE
Severe Weather Statement
National Weather Service Cleveland OH
438 PM EDT Thu Aug 12 2021
OHC153-122048-
/O.CAN.KCLE.SV.W.0093.000000T0000Z-210812T2130Z/
Summit OH-
438 PM EDT Thu Aug 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SUMMIT COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
northeastern Ohio.
LAT...LON 4114 8052 4113 8097 4117 8139 4124 8138
4135 8130 4137 8116 4138 8100 4139 8098
4145 8052
TIME...MOT...LOC 2038Z 258DEG 34KT 4133 8094
$$
OHC055-133-155-122130-
/O.CON.KCLE.SV.W.0093.000000T0000Z-210812T2130Z/
Portage OH-Trumbull OH-Geauga OH-
438 PM EDT Thu Aug 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR NORTHERN PORTAGE...TRUMBULL AND SOUTHEASTERN GEAUGA COUNTIES...
At 438 PM EDT, a severe thunderstorm was located near West
Farmington, or 9 miles northwest of Warren, moving east at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Expect damage to
trees and power lines.
Locations impacted include...
Warren, Ravenna, Kent, Niles, Streetsboro, Hubbard, Cortland, Newton
Falls, Lordstown, Garrettsville, Mantua, West Farmington, Vienna
Center, Hilltop, Maplewood Park, Bristolville, Leavittsburg, Aurora,
Girard and Parkman.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4114 8052 4113 8097 4117 8139 4124 8138
4135 8130 4137 8116 4138 8100 4139 8098
4145 8052
TIME...MOT...LOC 2038Z 258DEG 34KT 4133 8094
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Kahn554
WWUS51 KCLE 122052
SVSCLE
Severe Weather Statement
National Weather Service Cleveland OH
452 PM EDT Thu Aug 12 2021
OHC055-133-155-122130-
/O.CON.KCLE.SV.W.0093.000000T0000Z-210812T2130Z/
Portage OH-Trumbull OH-Geauga OH-
452 PM EDT Thu Aug 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR NORTHEASTERN PORTAGE...TRUMBULL AND SOUTHEASTERN GEAUGA
COUNTIES...
At 452 PM EDT, a severe thunderstorm was located over Cortland, or 8
miles north of Warren, moving east at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Expect damage to
trees and power lines.
Locations impacted include...
Warren, Ravenna, Niles, Hubbard, Cortland, Newton Falls, Lordstown,
Garrettsville, Mantua, West Farmington, Vienna Center, Hilltop,
Maplewood Park, Bristolville, Leavittsburg, Girard, Parkman, Vienna,
McDonald and Mecca.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4114 8052 4113 8097 4116 8128 4124 8128
4136 8122 4137 8116 4138 8100 4139 8098
4145 8052
TIME...MOT...LOC 2052Z 258DEG 34KT 4136 8076
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Campbell236
WWUS51 KCLE 122104
SVSCLE
Severe Weather Statement
National Weather Service Cleveland OH
504 PM EDT Thu Aug 12 2021
OHC055-122113-
/O.CAN.KCLE.SV.W.0093.000000T0000Z-210812T2130Z/
Geauga OH-
504 PM EDT Thu Aug 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GEAUGA 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 1000 PM EDT for
northeastern Ohio.
LAT...LON 4114 8052 4113 8097 4115 8119 4123 8115
4134 8115 4135 8100 4139 8098 4145 8052
TIME...MOT...LOC 2103Z 259DEG 32KT 4133 8078
$$
OHC133-155-122130-
/O.CON.KCLE.SV.W.0093.000000T0000Z-210812T2130Z/
Portage OH-Trumbull OH-
504 PM EDT Thu Aug 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR NORTHEASTERN PORTAGE AND TRUMBULL COUNTIES...
At 503 PM EDT, a severe thunderstorm was located near Cortland, or
near Warren, moving east at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Expect damage to
trees and power lines.
Locations impacted include...
Warren, Niles, Hubbard, Cortland, Newton Falls, Lordstown,
Garrettsville, West Farmington, Vienna Center, Hilltop, Maplewood
Park, Bristolville, Leavittsburg, Girard, Vienna, McDonald, Mecca,
Windham, Johnston and Hiram.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4114 8052 4113 8097 4115 8119 4123 8115
4134 8115 4135 8100 4139 8098 4145 8052
TIME...MOT...LOC 2103Z 259DEG 32KT 4133 8078
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Campbell804
WWUS51 KCLE 122111
SVSCLE
Severe Weather Statement
National Weather Service Cleveland OH
511 PM EDT Thu Aug 12 2021
OHC133-122120-
/O.CAN.KCLE.SV.W.0093.000000T0000Z-210812T2130Z/
Portage OH-
511 PM EDT Thu Aug 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PORTAGE 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 1000 PM EDT for
northeastern Ohio.
LAT...LON 4114 8052 4113 8098 4113 8100 4134 8099
4139 8098 4145 8052
TIME...MOT...LOC 2110Z 258DEG 34KT 4135 8068
$$
OHC155-122130-
/O.CON.KCLE.SV.W.0093.000000T0000Z-210812T2130Z/
Trumbull OH-
511 PM EDT Thu Aug 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR TRUMBULL COUNTY...
At 510 PM EDT, a severe thunderstorm was located over Cortland, or 10
miles northeast of Warren, moving east at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Expect damage to
trees and power lines.
Locations impacted include...
Warren, Niles, Hubbard, Cortland, Newton Falls, Lordstown, West
Farmington, Vienna Center, Hilltop, Maplewood Park, Bristolville,
Leavittsburg, Girard, Vienna, McDonald, Mecca, Johnston, Orangeville,
Yankee Lake and Churchill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4114 8052 4113 8098 4113 8100 4134 8099
4139 8098 4145 8052
TIME...MOT...LOC 2110Z 258DEG 34KT 4135 8068
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Campbell283
WWUS51 KCLE 122125
SVSCLE
Severe Weather Statement
National Weather Service Cleveland OH
525 PM EDT Thu Aug 12 2021
OHC155-122135-
/O.EXP.KCLE.SV.W.0093.000000T0000Z-210812T2130Z/
Trumbull OH-
525 PM EDT Thu Aug 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR TRUMBULL COUNTY WILL EXPIRE AT
530 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 gusty
winds are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
northeastern Ohio.
LAT...LON 4114 8052 4113 8098 4113 8100 4134 8099
4139 8098 4145 8052
TIME...MOT...LOC 2125Z 258DEG 34KT 4138 8052
$$
CampbellThe office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 4:14 AM EDT | Heat Advisory | CLE | Ashland, Crawford, Cuyahoga, Erie, Hancock, Holmes and 19 more | 15 hr |
| Aug 12, 4:56 AM EDT | Special Marine Warning | CLE | 64 min | |
| Aug 12, 5:12 AM EDT | Special Marine Warning | CLE | 33 min | |
| Aug 12, 7:33 AM EDT | Special Marine Warning | CLE | 87 min | |
| Aug 12, 8:21 AM EDT | Special Weather Statement | CLE | Medina | 39 min |
| Aug 12, 8:59 AM EDT | Special Marine Warning | CLE | 71 min | |
| Aug 12, 9:03 AM EDT | Special Weather Statement | CLE | Ashtabula, Lake | 42 min |
| Aug 12, 10:15 AM EDT | Special Weather Statement | CLE | Cuyahoga, Geauga, Portage | 45 min |
| Aug 12, 10:23 AM EDT | Areal Flood Advisory | CLE | Cuyahoga | 2 hr |
| Aug 12, 10:28 AM EDT | Severe Thunderstorm Warning | CLE | Ashtabula, Cuyahoga, Geauga, Portage, Summit, Trumbull | 47 min |
| Aug 12, 11:01 AM EDT | Severe Thunderstorm Warning | CLE | Ashtabula, Trumbull | 40 min |
| Aug 12, 3:29 PM EDT | Special Weather Statement | CLE | Portage, Trumbull | 46 min |
| Aug 12, 3:37 PM EDT | Special Weather Statement | CLE | Geauga | 53 min |
| Aug 12, 3:42 PM EDT | Severe Thunderstorm Warning | CLE | Geauga, Portage, Summit | 48 min |
| Aug 12, 3:54 PM EDT | Special Weather Statement | CLE | Mahoning | 51 min |
| Aug 12, 4:00 PM EDT | Special Weather Statement | CLE | Summit | 45 min |
| Aug 12, 4:09 PM EDT | Severe Thunderstorm Warning | CLE | Portage, Summit | 51 min |
| Aug 12, 4:52 PM EDT | Severe Thunderstorm Warning | CLE | Mahoning, Portage | 68 min |
| Aug 12, 6:11 PM EDT | Special Weather Statement | CLE | Morrow, Richland | 64 min |
Nearby
Severe Thunderstorm Warnings in Ohio, 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.