Alert archive / Ohio / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 77, NWS Cleveland, OH

August 11, 2021Erie County, Ottawa County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 11, 2021, 3:53 PM EDT for Erie County, Ottawa County, Ohio. It was in force for 52 min. 7 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, 3:53 PM EDT (19:53 UTC)
Expired: Aug 11, 2021, 4:45 PM EDT
In force: 52 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Erie County, OH, Ottawa County, OH

The radar

The Cleveland radar (KCLE), 76 km from the middle of the area, began a volume at 19:54 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, 3:58 PM EDT	TSTM WND DMG	10 Nw Marblehead, OH	NUMEROUS TREES AND POWERLINES DOWN ACROSS SOUTH BASS ISLAND.
Aug 11, 4:00 PM EDT	TSTM WND GST 51	2 Ene Port Clinton, OH	DELAYED REPORT PERSONAL WEATHER STATION.
Aug 11, 4:16 PM EDT	MARINE TSTM WIND 42	6 N Bay View, OH	DELAYED REPORT PERSONAL WEATHER STATION.
Aug 11, 4:22 PM EDT	TSTM WND GST 67	6 N Marblehead, OH	DELAYED REPORT PERSONAL WEATHER STATION.
Aug 11, 4:24 PM EDT	MARINE TSTM WIND 56	1 Nnw Marblehead, OH	49 KNOT PEAK WIND.
Aug 11, 4:29 PM EDT	MARINE TSTM WIND 42	1 S Marblehead, OH	DELAYED REPORT PERSONAL WEATHER STATION.
Aug 11, 4:51 PM EDT	TSTM WND DMG	2 W Huron, OH	1-INCH TREE LIMBS BROKEN; SHINGLES BLOWN OFF.

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, 7.9 hours before the alert went out and 140 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.

532 
WUUS51 KCLE 111953
SVRCLE
OHC043-123-112045-
/O.NEW.KCLE.SV.W.0077.210811T1953Z-210811T2045Z/

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

The National Weather Service in Cleveland has issued a

* Severe Thunderstorm Warning for...
  Ottawa County in northwestern Ohio...
  Erie County in north central Ohio...

* Until 445 PM EDT.

* At 352 PM EDT, a severe thunderstorm was located near Put-In-Bay,
  moving east at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Sandusky, Port Clinton, Kelleys Island, Put-In-Bay, Castalia,
  Catawba Island, Marblehead, Bay View, Bloomingville, Sandusky South
  and Fairview Lanes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4169 8272 4166 8272 4167 8266 4165 8263
      4159 8262 4153 8265 4142 8249 4144 8244
      4134 8249 4135 8284 4145 8285 4142 8294
      4157 8297 4156 8293 4161 8290 4164 8293
      4172 8289 4173 8279
TIME...MOT...LOC 1952Z 263DEG 33KT 4160 8285 

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

$$

Campbell

1 follow-up statement

815 
WWUS51 KCLE 112030
SVSCLE

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

OHC043-123-112045-
/O.CON.KCLE.SV.W.0077.000000T0000Z-210811T2045Z/
Ottawa OH-Erie OH-
430 PM EDT Wed Aug 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR OTTAWA AND ERIE COUNTIES...

At 430 PM EDT, a severe thunderstorm was located 15 miles north of
Western Vermilion, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Sandusky, Kelleys Island, Put-In-Bay, Castalia, Catawba Island,
Marblehead, Bay View, Bloomingville, Sandusky South and Fairview
Lanes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4169 8272 4166 8272 4167 8266 4165 8263
      4159 8262 4155 8265 4153 8265 4145 8256
      4142 8249 4134 8249 4135 8284 4162 8287
      4170 8285 4173 8279
TIME...MOT...LOC 2030Z 263DEG 33KT 4164 8238 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 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, 3:37 PM EDT	Severe Thunderstorm Warning	CLE	Lucas, Ottawa, Sandusky, Wood	53 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.