Alert archive / Ohio / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 93, NWS Northern Indiana
NWS Northern Indiana issued this severe thunderstorm warning at Aug 11, 2021, 2:44 PM EDT for 4 counties in Ohio; Hillsdale County, Michigan. It was in force for 46 min. 12 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, 2:44 PM EDT (18:44 UTC)
- Expired
- Aug 11, 2021, 3:30 PM EDT
- In force
- 46 min
- Issued by
- NWS Northern Indiana
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Hillsdale County, MI, Defiance County, OH, Fulton County, OH, Henry County, OH, Williams County, OH
The radar
The Northern Indiana radar (KIWX), 115 km from the middle of the area, began a volume at 18:47 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, 2:47 PM EDT | TSTM WND DMG | 1 N Zone, OH | GORHAM-FAYETTE FIRE REPORTED WIRES DOWNED ON STATE ROUTE 66 IN GORHAM TWP. |
| Aug 11, 2:48 PM EDT | TSTM WND DMG | Fayette, OH | MULTIPLE 3-4 INCH TREE BRANCHES DOWN AT THE INTERSECTION OF STATE ROAD 66 AND US 20. |
| Aug 11, 2:53 PM EDT | TSTM WND DMG | 3 Wsw Denson, OH | MORENCI FIRE REPORTS WIRES DOWN ON SR 108 IN CHESTERFIELD TWP OHIO. |
| Aug 11, 2:54 PM EDT | TSTM WND DMG | 2 Sse Lyons, OH | LYONS-ROYALTON FIRE REPORTS WIRES DOWN. |
| Aug 11, 2:54 PM EDT | TSTM WND DMG | 2 Wsw Oakshade, OH | 4 LIMBS DOWNED, 3 OF THEM AROUND 1-2 FEET IN DIAMETER, THE OTHER WAS AROUND 3-6 INCHES IN DIAMETER. |
| Aug 11, 2:55 PM EDT | TSTM WND GST 46 | 1 N Ottokee, OH | AWOS STATION KUSE WAUSEON. |
| Aug 11, 3:00 PM EDT | TSTM WND DMG | Delta, OH | WIRES DOWN ON CR 7. |
| Aug 11, 3:03 PM EDT | TSTM WND DMG | 2 Ssw Lyons, OH | WIRES DOWN ON US 20 ROYALTON TOWNSHIP, OH. |
| Aug 11, 3:06 PM EDT | TSTM WND DMG | 1 Nnw Swanton, OH | WIRES DOWN ON BROOKSIDE DRIVE. |
| Aug 11, 3:06 PM EDT | TSTM WND DMG | 2 Nnw Swanton, OH | WIRES DOWN ON SR 64 AT CR K. FULTON TOWNSHIP. |
| Aug 11, 3:15 PM EDT | TSTM WND DMG | 1 N Swanton, OH | TREE DOWN ON A HOUSE IN SWANTON OFF OF BROOKSIDE DRIVE. |
| Aug 11, 3:17 PM EDT | TSTM WND DMG | Montpelier, OH | LARGE BRANCHES DOWN ON A HOUSE AND IN THE ROAD. |
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, 11:50 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 6.7 hours before the alert went out and 139 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.
623
WUUS53 KIWX 111844
SVRIWX
MIC059-OHC039-051-069-171-111930-
/O.NEW.KIWX.SV.W.0093.210811T1844Z-210811T1930Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
244 PM EDT Wed Aug 11 2021
The National Weather Service in Northern Indiana has issued a
* Severe Thunderstorm Warning for...
Eastern Hillsdale County in southeastern Michigan...
Northeastern Defiance County in northwestern Ohio...
Northern Henry County in northwestern Ohio...
Williams County in northwestern Ohio...
Fulton County in northwestern Ohio...
* Until 330 PM EDT.
* At 244 PM EDT, severe thunderstorms were located along a line
extending from near Cement City to near Fayette to 7 miles north
of Defiance, moving east at 50 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Napoleon, Bryan, Wauseon, Archbold, Montpelier, Swanton, Delta,
West Unity, Pioneer, Stryker, Fayette, Liberty Center, Mcclure,
Holiday City, Jerome, Somerset, West Jefferson, Pulaski, Pittsford
and Farmer.
This includes Interstate 80 in Ohio between mile markers 10 and 48.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Northern Indiana.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with these storms. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4138 8465 4162 8463 4189 8457 4207 8450
4207 8437 4171 8436 4172 8388 4134 8388
TIME...MOT...LOC 1843Z 270DEG 43KT 4204 8429 4169 8429 4139 8440
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CM1 follow-up statement
025
WWUS53 KIWX 111903
SVSIWX
Severe Weather Statement
National Weather Service Northern Indiana
303 PM EDT Wed Aug 11 2021
MIC059-OHC171-111913-
/O.CAN.KIWX.SV.W.0093.000000T0000Z-210811T1930Z/
Hillsdale MI-Williams OH-
303 PM EDT Wed Aug 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN HILLSDALE AND WILLIAMS
COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 500 PM EDT for
northwestern Ohio.
LAT...LON 4144 8432 4171 8436 4172 8388 4134 8388
4136 8429
TIME...MOT...LOC 1903Z 270DEG 43KT 4204 8400 4169 8400 4139 8411
$$
OHC039-051-069-111930-
/O.CON.KIWX.SV.W.0093.000000T0000Z-210811T1930Z/
Defiance OH-Henry OH-Fulton OH-
303 PM EDT Wed Aug 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR NORTHEASTERN DEFIANCE...NORTHERN HENRY AND FULTON COUNTIES...
At 303 PM EDT, severe thunderstorms were located along a line
extending from near Clinton to 7 miles north of Delta to Napoleon,
moving east at 50 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Napoleon, Wauseon, Archbold, Swanton, Delta, Fayette, Liberty Center,
Mcclure, Metamora, Lyons, Texas, Oakshade, Seward, Ridgeville
Corners, Gerald, Denson, Assumption, Colton, Tedrow and Ottokee.
This includes Interstate 80 in Ohio between mile markers 25 and 48.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Northern Indiana.
Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4144 8432 4171 8436 4172 8388 4134 8388
4136 8429
TIME...MOT...LOC 1903Z 270DEG 43KT 4204 8400 4169 8400 4139 8411
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CMThe office that day
Everything else NWS Northern Indiana issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 12:56 AM EDT | Special Weather Statement | IWX | Paulding, Van Wert | 49 min |
| Aug 11, 1:22 AM EDT | Special Weather Statement | IWX | Defiance, Paulding, Van Wert | 23 min |
| Aug 11, 7:28 AM EDT | Special Weather Statement | IWX | Putnam | 32 min |
| Aug 11, 7:57 AM EDT | Special Weather Statement | IWX | Putnam | 33 min |
| Aug 11, 8:35 AM EDT | Special Weather Statement | IWX | Allen, Van Wert | 40 min |
| Aug 11, 9:07 AM EDT | Areal Flood Warning | IWX | Allen, Putnam | 3 hr |
| Aug 11, 1:48 PM EDT | Severe Thunderstorm Warning | IWX | Defiance, Paulding, Van Wert | 27 min |
| Aug 11, 2:02 PM EDT | Severe Thunderstorm Warning | IWX | Defiance, Fulton, Henry, Williams | 43 min |
| Aug 11, 2:14 PM EDT | Severe Thunderstorm Warning | IWX | Defiance, Paulding, Putnam, Van Wert | 46 min |
| Aug 11, 2:48 PM EDT | Severe Thunderstorm Warning | IWX | Allen, Defiance, Henry, Putnam, Van Wert | 57 min |
| Aug 10, 9:49 PM EDT | Special Weather Statement | IWX | Berrien | 41 min |
| Aug 10, 9:56 PM EDT | Severe Thunderstorm Warning | IWX | Berrien | 49 min |
| Aug 10, 10:03 PM EDT | Severe Thunderstorm Warning | IWX | Berrien, Cass | 27 min |
| Aug 10, 10:18 PM EDT | Severe Thunderstorm Warning | IWX | Berrien, Cass | 57 min |
| Aug 10, 10:42 PM EDT | Severe Thunderstorm Warning | IWX | Cass, Saint Joseph | 48 min |
| Aug 10, 11:31 PM EDT | Special Weather Statement | IWX | Branch, Hillsdale | 29 min |
| Aug 11, 1:10 PM EDT | Special Weather Statement | IWX | Cass, Saint Joseph | 50 min |
| Aug 11, 1:39 PM EDT | Severe Thunderstorm Warning | IWX | Branch, Hillsdale, Saint Joseph | 36 min |
Nearby
Severe Thunderstorm Warnings in Ohio, 2021Severe Thunderstorm Warnings in Michigan, 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.