Alert archive / Ohio / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 76, NWS Cleveland, OH

August 11, 20214 counties in Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 11, 2021, 3:37 PM EDT for 4 counties in Ohio. It was in force for 53 min. 5 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, 3:37 PM EDT (19:37 UTC)
Expired: Aug 11, 2021, 4:30 PM EDT
In force: 53 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), 125 km from the middle of the area, began a volume at 19:42 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, 3:49 PM EDT	TSTM WND DMG	3 Nne Ottawa Hills, OH	3-INCH TREE LIMBS BROKEN; POWER POLES BROKEN.
Aug 11, 3:56 PM EDT	TSTM WND DMG	Oak Harbor, OH	DAMAGE TO A ROOF ON A HOME. NUMEROUS SHINGLES LIFTED AND TORN OFF.
Aug 11, 4:02 PM EDT	TSTM WND DMG	4 Nne Ottawa Hills, OH	LARGE TREE DOWN.
Aug 11, 4:10 PM EDT	TSTM WND DMG	2 Ne Rossford, OH	DAMAGE TO BUILDING ROOF.
Aug 11, 4:22 PM EDT	TSTM WND DMG	Gibsonburg, OH	9 INCH DIAMETER, 30 FOOT TREE DOWN ACROSS ROAD AND POWER LINES.

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 11, 2:32 PM EDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 7.6 hours before the alert went out and 137 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: 106 J/kg
Mixed-layer CIN: -290 J/kg
Mixed-layer LCL: 1220 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 169 m²/s²
0-3 km storm-relative helicity: 167 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

460 
WUUS51 KCLE 111937
SVRCLE
OHC095-123-143-173-112030-
/O.NEW.KCLE.SV.W.0076.210811T1937Z-210811T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cleveland OH
337 PM EDT Wed Aug 11 2021

The National Weather Service in Cleveland has issued a

* Severe Thunderstorm Warning for...
  Ottawa County in northwestern Ohio...
  Sandusky County in northwestern Ohio...
  Eastern Wood County in northwestern Ohio...
  Northeastern Lucas County in northwestern Ohio...

* Until 430 PM EDT.

* At 337 PM EDT, a severe thunderstorm was located near Genoa, or 11
  miles northeast of Bowling Green, moving east at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Toledo, Bowling Green, Fremont, Fostoria, Port Clinton, Perrysburg,
  Oregon, Bellevue, Clyde, Rossford, Northwood, Oak Harbor,
  Gibsonburg, Genoa, Woodville, Elmore, Green Springs, Maumee,
  Ballville and Ottawa Hills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4173 8364 4173 8346 4172 8347 4167 8319
      4150 8285 4125 8284 4125 8342 4117 8342
      4117 8364
TIME...MOT...LOC 1937Z 275DEG 40KT 4149 8349 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Campbell

2 follow-up statements

133 
WWUS51 KCLE 112000
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
400 PM EDT Wed Aug 11 2021

OHC095-123-143-173-112030-
/O.CON.KCLE.SV.W.0076.000000T0000Z-210811T2030Z/
Ottawa OH-Sandusky OH-Wood OH-Lucas OH-
400 PM EDT Wed Aug 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR OTTAWA...SANDUSKY...EASTERN WOOD AND NORTHEASTERN LUCAS
COUNTIES...

At 400 PM EDT, a severe thunderstorm was located near Oak Harbor, or
8 miles north of Fremont, moving east at 45 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Toledo, Fremont, Fostoria, Port Clinton, Oregon, Bellevue, Clyde,
Rossford, Northwood, Oak Harbor, Gibsonburg, Genoa, Woodville,
Elmore, Green Springs, Ballville, Walbridge, Pemberville, Millbury
and Luckey.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4173 8357 4173 8347 4167 8319 4150 8285
      4125 8284 4125 8341 4117 8342 4117 8360
TIME...MOT...LOC 2000Z 275DEG 40KT 4147 8315 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Campbell

820 
WWUS51 KCLE 112010
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
410 PM EDT Wed Aug 11 2021

OHC173-112020-
/O.CAN.KCLE.SV.W.0076.000000T0000Z-210811T2030Z/
Wood OH-
410 PM EDT Wed Aug 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN WOOD 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
north central and northwestern Ohio.

LAT...LON 4172 8340 4167 8319 4150 8285 4125 8284
      4126 8341
TIME...MOT...LOC 2010Z 275DEG 40KT 4146 8300 

$$

OHC095-123-143-112030-
/O.CON.KCLE.SV.W.0076.000000T0000Z-210811T2030Z/
Ottawa OH-Sandusky OH-Lucas OH-
410 PM EDT Wed Aug 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR OTTAWA...SANDUSKY AND NORTHEASTERN LUCAS COUNTIES...

At 410 PM EDT, a severe thunderstorm was located near Port Clinton,
moving east at 45 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Fremont, Port Clinton, Oregon, Bellevue, Clyde, Oak Harbor,
Gibsonburg, Genoa, Woodville, Elmore, Green Springs, Ballville,
Lindsey, Rocky Ridge, Clay Center, Helena, Burgoon, Stony Prairie,
Reno Beach and Williston.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4172 8340 4167 8319 4150 8285 4125 8284
      4126 8341
TIME...MOT...LOC 2010Z 275DEG 40KT 4146 8300 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Campbell

The 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, 2:40 AM EDT	Severe Thunderstorm Warning	CLE	Lucas, Ottawa, Sandusky, Wood	65 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 Considerable damage threat	CLE	Crawford, Hancock, Marion, Seneca, Wyandot	55 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 Considerable damage threat	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 Considerable damage threat	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 Considerable damage threat	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 Considerable damage threat	CLE	Mahoning, Medina, Portage, Stark, Summit, Wayne	69 min
Aug 11, 5:41 PM EDT	Severe Thunderstorm Warning Considerable damage threat	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 Considerable damage threat	CLE	Ashtabula	75 min
Aug 11, 6:12 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CLE	Mahoning, Portage, Trumbull	69 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.