Alert archive / Ohio / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 71, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Aug 11, 2021, 8:58 AM EDT for 4 counties in Ohio. It was in force for 62 min. 2 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, 8:58 AM EDT (12:58 UTC)
- Expired
- Aug 11, 2021, 10:00 AM EDT
- In force
- 62 min
- Issued by
- NWS Cleveland, OH
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Crawford County, OH, Huron County, OH, Richland County, OH, Seneca County, OH
The radar
The Cleveland radar (KCLE), 80 km from the middle of the area, began a volume at 13:01 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, 9:50 AM EDT | TSTM WND DMG | 3 Ne Willard, OH | MULTIPLE TRESS DOWN ALONG PERU OLENA RD. |
| Aug 11, 9:50 AM EDT | TSTM WND DMG | Willard, OH | NUMEROUS TREES DOWN. |
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 12:00Z, 1.0 hours before the alert went out and 191 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
- 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
The text
As transmitted.
516
WUUS51 KCLE 111258
SVRCLE
OHC033-077-139-147-111400-
/O.NEW.KCLE.SV.W.0071.210811T1258Z-210811T1400Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cleveland OH
858 AM EDT Wed Aug 11 2021
The National Weather Service in Cleveland has issued a
* Severe Thunderstorm Warning for...
Northwestern Richland County in north central Ohio...
Huron County in north central Ohio...
Eastern Seneca County in northwestern Ohio...
Northern Crawford County in north central Ohio...
* Until 1000 AM EDT.
* At 858 AM EDT, severe thunderstorms were located along a line
extending from near Green Springs to near Sycamore to near Upper
Sandusky, moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* Locations impacted include...
Norwalk, Shelby, Willard, New London, Plymouth, Wakeman, New
Washington, Bloomville, Chatfield, Greenwich, Monroeville, Attica,
Benton, North Fairfield, Republic, Tiro, Flat Rock, Oceola and
Sulpher Springs.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4122 8311 4125 8284 4128 8235 4107 8234
4106 8244 4099 8244 4088 8270 4082 8311
TIME...MOT...LOC 1258Z 269DEG 30KT 4122 8311 4101 8311 4081 8338
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Kahn3 follow-up statements
179
WWUS51 KCLE 111312
SVSCLE
Severe Weather Statement
National Weather Service Cleveland OH
912 AM EDT Wed Aug 11 2021
OHC033-077-139-147-111400-
/O.CON.KCLE.SV.W.0071.000000T0000Z-210811T1400Z/
Richland OH-Huron OH-Seneca OH-Crawford OH-
912 AM EDT Wed Aug 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM EDT
FOR NORTHWESTERN RICHLAND...HURON...EASTERN SENECA AND NORTHERN
CRAWFORD COUNTIES...
At 912 AM EDT, severe thunderstorms were located along a line
extending from near Green Springs to near Bloomville to Upper
Sandusky, moving east at 35 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
Locations impacted include...
Norwalk, Shelby, Willard, New London, Plymouth, Wakeman, New
Washington, Bloomville, Chatfield, Greenwich, Monroeville, Attica,
Benton, North Fairfield, Republic, Tiro, Flat Rock, Oceola and
Sulpher Springs.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4122 8311 4125 8284 4128 8235 4107 8234
4106 8244 4099 8244 4088 8270 4082 8311
TIME...MOT...LOC 1312Z 269DEG 30KT 4122 8297 4101 8297 4081 8324
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
Kahn982
WWUS51 KCLE 111331
SVSCLE
Severe Weather Statement
National Weather Service Cleveland OH
931 AM EDT Wed Aug 11 2021
OHC147-111341-
/O.CAN.KCLE.SV.W.0071.000000T0000Z-210811T1400Z/
Seneca OH-
931 AM EDT Wed Aug 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN SENECA COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 4082 8311 4100 8283 4124 8271 4128 8235
4107 8234 4106 8244 4099 8244 4088 8270
TIME...MOT...LOC 1331Z 269DEG 30KT 4122 8278 4101 8278 4081 8305
$$
OHC033-077-139-111400-
/O.CON.KCLE.SV.W.0071.000000T0000Z-210811T1400Z/
Richland OH-Huron OH-Crawford OH-
931 AM EDT Wed Aug 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM EDT
FOR NORTHWESTERN RICHLAND...HURON AND NORTHERN CRAWFORD COUNTIES...
At 931 AM EDT, severe thunderstorms were located along a line
extending from near Bellevue to near Willard to near Bucyrus, moving
east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
Locations impacted include...
Norwalk, Shelby, Willard, New London, Plymouth, Wakeman, New
Washington, Greenwich, Monroeville, North Fairfield, Tiro and Sulpher
Springs.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4082 8311 4100 8283 4124 8271 4128 8235
4107 8234 4106 8244 4099 8244 4088 8270
TIME...MOT...LOC 1331Z 269DEG 30KT 4122 8278 4101 8278 4081 8305
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Kahn366
WWUS51 KCLE 111350
SVSCLE
Severe Weather Statement
National Weather Service Cleveland OH
950 AM EDT Wed Aug 11 2021
OHC033-077-139-111400-
/O.EXP.KCLE.SV.W.0071.000000T0000Z-210811T1400Z/
Richland OH-Huron OH-Crawford OH-
950 AM EDT Wed Aug 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN RICHLAND...HURON
AND NORTHERN CRAWFORD COUNTIES WILL EXPIRE AT 1000 AM EDT...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire.
LAT...LON 4082 8311 4100 8283 4124 8271 4128 8235
4107 8234 4106 8244 4099 8244 4088 8270
TIME...MOT...LOC 1350Z 269DEG 30KT 4122 8258 4101 8259 4081 8286
$$
KahnThe 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, 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.