Alert archive / Ohio / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 68, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Aug 11, 2021, 2:40 AM EDT for 4 counties in Ohio. It was in force for 65 min. 4 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 11, 2021, 2:40 AM EDT (06:40 UTC)
- Expired
- Aug 11, 2021, 3:45 AM EDT
- In force
- 65 min
- Issued by
- NWS Cleveland, OH
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Lucas County, OH, Ottawa County, OH, Sandusky County, OH, Wood County, OH
The radar
The Cleveland radar (KCLE), 99 km from the middle of the area, began a volume at 06:42 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 11, 2:41 AM EDT | TSTM WND DMG | Luckey, OH | 12 INCH DIAMETER TREE DOWN ON MAIN STREET IN LUCKEY. |
| Aug 11, 2:43 AM EDT | TSTM WND GST 56 | 1 Sse Walbridge, OH | ASOS STATION KTDZ TOLEDO EXECUTIVE AIRPORT. |
| Aug 11, 2:45 AM EDT | TSTM WND DMG | Genoa, OH | MULTIPLE DOWNED TREES AND DAMAGE TO A BARN ROOF IN GENOA. |
| Aug 11, 3:05 AM EDT | TSTM WND GST 44 | 7 N Oak Harbor, OH | *DELAYED REPORT* PERSONAL WEATHER STATION. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 6.7 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.
- Mixed-layer CAPE
- 2462 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 962 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 207 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 3.7
The text
As transmitted.
451
WUUS51 KCLE 110640
SVRCLE
OHC095-123-143-173-110745-
/O.NEW.KCLE.SV.W.0068.210811T0640Z-210811T0745Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cleveland OH
240 AM EDT Wed Aug 11 2021
The National Weather Service in Cleveland has issued a
* Severe Thunderstorm Warning for...
Ottawa County in northwestern Ohio...
Northern Sandusky County in northwestern Ohio...
Northeastern Wood County in northwestern Ohio...
Northeastern Lucas County in northwestern Ohio...
* Until 345 AM EDT.
* At 239 AM EDT, a severe thunderstorm was located near Genoa, or 13
miles northeast of Bowling Green, moving northeast at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* Locations impacted include...
Port Clinton, Kelleys Island, Put-In-Bay, Perrysburg, Oregon,
Rossford, Northwood, Oak Harbor, Gibsonburg, Genoa, Woodville,
Elmore, Catawba Island, Walbridge, Pemberville, Millbury, Luckey,
Bradner, Marblehead and Wayne.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4174 8330 4168 8320 4164 8305 4159 8300
4156 8292 4161 8290 4164 8293 4169 8291
4175 8282 4171 8275 4167 8273 4159 8262
4153 8266 4128 8355 4153 8368
TIME...MOT...LOC 0639Z 240DEG 42KT 4149 8345
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
263 follow-up statements
960
WWUS51 KCLE 110702
SVSCLE
Severe Weather Statement
National Weather Service Cleveland OH
302 AM EDT Wed Aug 11 2021
OHC173-110711-
/O.CAN.KCLE.SV.W.0068.000000T0000Z-210811T0745Z/
Wood OH-
302 AM EDT Wed Aug 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WOOD COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4174 8330 4168 8320 4164 8305 4159 8300
4156 8292 4161 8290 4164 8293 4169 8291
4175 8282 4171 8275 4167 8273 4159 8262
4153 8266 4135 8331 4166 8344
TIME...MOT...LOC 0701Z 240DEG 42KT 4162 8315
$$
OHC095-123-143-110745-
/O.CON.KCLE.SV.W.0068.000000T0000Z-210811T0745Z/
Ottawa OH-Sandusky OH-Lucas OH-
302 AM EDT Wed Aug 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 AM EDT
FOR OTTAWA...NORTHERN SANDUSKY AND NORTHEASTERN LUCAS COUNTIES...
At 301 AM EDT, a severe thunderstorm was located 7 miles north of Oak
Harbor, or 13 miles northwest of Port Clinton, moving northeast at 50
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
Locations impacted include...
Port Clinton, Kelleys Island, Put-In-Bay, Oregon, Northwood, Oak
Harbor, Gibsonburg, Genoa, Woodville, Elmore, Catawba Island,
Marblehead, Lindsey, Rocky Ridge, Clay Center, Reno Beach, Williston
and Bono.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4174 8330 4168 8320 4164 8305 4159 8300
4156 8292 4161 8290 4164 8293 4169 8291
4175 8282 4171 8275 4167 8273 4159 8262
4153 8266 4135 8331 4166 8344
TIME...MOT...LOC 0701Z 240DEG 42KT 4162 8315
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
26194
WWUS51 KCLE 110720
SVSCLE
Severe Weather Statement
National Weather Service Cleveland OH
320 AM EDT Wed Aug 11 2021
OHC095-143-110729-
/O.CAN.KCLE.SV.W.0068.000000T0000Z-210811T0745Z/
Sandusky OH-Lucas OH-
320 AM EDT Wed Aug 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN SANDUSKY AND
NORTHEASTERN LUCAS COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4171 8275 4167 8273 4159 8262 4153 8266
4145 8295 4159 8300 4156 8293 4156 8291
4161 8290 4164 8293 4169 8291 4175 8282
TIME...MOT...LOC 0719Z 240DEG 42KT 4171 8294
$$
OHC123-110745-
/O.CON.KCLE.SV.W.0068.000000T0000Z-210811T0745Z/
Ottawa OH-
320 AM EDT Wed Aug 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 AM EDT
FOR OTTAWA COUNTY...
At 319 AM EDT, a severe thunderstorm was located 7 miles northwest of
Put-In-Bay, moving northeast at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
Locations impacted include...
Port Clinton, Kelleys Island, Put-In-Bay, Catawba Island and
Marblehead.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4171 8275 4167 8273 4159 8262 4153 8266
4145 8295 4159 8300 4156 8293 4156 8291
4161 8290 4164 8293 4169 8291 4175 8282
TIME...MOT...LOC 0719Z 240DEG 42KT 4171 8294
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
26877
WWUS51 KCLE 110742 RRA
SVSCLE
Severe Weather Statement
National Weather Service Cleveland OH
342 AM EDT Wed Aug 11 2021
OHC123-110752-
/O.EXP.KCLE.SV.W.0068.000000T0000Z-210811T0745Z/
Ottawa OH-
342 AM EDT Wed Aug 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR OTTAWA COUNTY WILL EXPIRE AT
345 AM EDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.
LAT...LON 4171 8275 4167 8273 4159 8262 4153 8266
4145 8295 4159 8300 4156 8293 4156 8291
4161 8290 4164 8293 4169 8291 4175 8282
TIME...MOT...LOC 0742Z 240DEG 42KT 4184 8264
$$
26The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 2:04 AM EDT | Special Weather Statement | CLE | Hancock, Lucas, Wood, Wyandot | 41 min |
| Aug 11, 2:26 AM EDT | Special Marine Warning | CLE | 80 min | |
| Aug 11, 2:50 AM EDT | Severe Thunderstorm Warning | CLE | Erie, Ottawa, Sandusky, Seneca | 55 min |
| Aug 11, 3:03 AM EDT | Heat Advisory | CLE | Erie, Hancock, Lucas, Ottawa, Sandusky, Seneca and 1 more | 12 hr |
| Aug 11, 3:36 AM EDT | Special Marine Warning | CLE | 54 min | |
| Aug 11, 4:03 AM EDT | Special Weather Statement | CLE | Ashtabula, Lake | 42 min |
| Aug 11, 4:23 AM EDT | Special Marine Warning | CLE | 67 min | |
| Aug 11, 5:08 AM EDT | Special Marine Warning | CLE | 50 min | |
| Aug 11, 7:53 AM EDT | Special Weather Statement | CLE | Wood | 52 min |
| Aug 11, 8:09 AM EDT | Special Weather Statement | CLE | Hancock | 51 min |
| Aug 11, 8:29 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Hancock, Seneca, Wyandot | 46 min |
| Aug 11, 8:40 AM EDT | Special Weather Statement | CLE | Erie, Sandusky | 50 min |
| Aug 11, 8:41 AM EDT | Special Marine Warning | CLE | 78 min | |
| Aug 11, 8:58 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Huron, Richland, Seneca | 62 min |
| Aug 11, 9:14 AM EDT | Severe Thunderstorm Warning | CLE | Erie, Huron, Lorain | 61 min |
| Aug 11, 9:30 AM EDT | Special Weather Statement | CLE | Crawford, Richland | 45 min |
| Aug 11, 9:44 AM EDT | Special Weather Statement | CLE | Medina | 46 min |
| Aug 11, 10:13 AM EDT | Special Weather Statement | CLE | Portage, Summit | 62 min |
| Aug 11, 10:20 AM EDT | Special Weather Statement | CLE | Stark, Wayne | 40 min |
| Aug 11, 10:53 AM EDT | Special Weather Statement | CLE | Mahoning | 67 min |
| Aug 11, 10:56 AM EDT | Severe Thunderstorm Warning | CLE | Mahoning, Portage, Stark | 64 min |
| Aug 11, 11:02 AM EDT | Special Weather Statement | CLE | Trumbull | 43 min |
| Aug 11, 11:45 AM EDT | Special Weather Statement | CLE | Trumbull | 15 min |
| Aug 11, 2:48 PM EDT | Severe Thunderstorm Warning | CLE | Hancock, Lucas, Wood | 57 min |
| Aug 11, 3:15 PM EDT | Special Marine Warning | CLE | 90 min | |
| Aug 11, 3:35 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Hancock, Marion, Seneca, Wyandot | 55 min |
| Aug 11, 3:37 PM EDT | Severe Thunderstorm Warning | CLE | Lucas, Ottawa, Sandusky, Wood | 53 min |
| Aug 11, 3:53 PM EDT | Severe Thunderstorm Warning | CLE | Erie, Ottawa | 52 min |
| Aug 11, 4:08 PM EDT | Special Marine Warning | CLE | 2 hr | |
| Aug 11, 4:14 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie, Huron, Richland, Seneca | 61 min |
| Aug 11, 4:20 PM EDT | Special Weather Statement | CLE | Morrow | 55 min |
| Aug 11, 4:30 PM EDT | Severe Thunderstorm Warning | CLE | Ashland, Crawford, Knox, Marion, Morrow, Richland | 60 min |
| Aug 11, 4:39 PM EDT | Severe Thunderstorm Warning | CLE | Ashland, Cuyahoga, Erie, Huron, Lorain, Medina | 66 min |
| Aug 11, 4:44 PM EDT | Severe Thunderstorm Warning | CLE | Ashland, Morrow, Richland | 61 min |
| Aug 11, 4:45 PM EDT | Special Marine Warning | CLE | 12 min | |
| Aug 11, 5:15 PM EDT | Severe Thunderstorm Warning | CLE | Ashland, Holmes, Knox, Wayne | 60 min |
| Aug 11, 5:17 PM EDT | Severe Thunderstorm Warning | CLE | Cuyahoga, Geauga, Lake, Portage, Summit | 58 min |
| Aug 11, 5:29 PM EDT | Severe Thunderstorm Warning | CLE | Ashland, Knox | 30 min |
| Aug 11, 5:36 PM EDT | Severe Thunderstorm Warning | CLE | Mahoning, Medina, Portage, Stark, Summit, Wayne | 69 min |
| Aug 11, 5:41 PM EDT | Severe Thunderstorm Warning | CLE | Ashtabula, Geauga, Lake, Portage, Trumbull | 79 min |
| Aug 11, 5:46 PM EDT | Special Marine Warning | CLE | 86 min | |
| Aug 11, 5:47 PM EDT | Areal Flood Advisory | CLE | Cuyahoga, Summit | 3 hr |
| Aug 11, 6:09 PM EDT | Severe Thunderstorm Warning | CLE | Ashtabula | 75 min |
| Aug 11, 6:12 PM EDT | Severe Thunderstorm Warning | CLE | Mahoning, Portage, Trumbull | 69 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.