Alert archive / Ohio / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 90, NWS Northern Indiana

August 11, 20214 counties in Ohio; Branch County, Hillsdale County, Michigan; DeKalb County, Steuben County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Aug 11, 2021, 2:02 PM EDT for 4 counties in Ohio; Branch County, Hillsdale County, Michigan; DeKalb County, Steuben County, Indiana. It was in force for 43 min. 15 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, 2:02 PM EDT (18:02 UTC)
Expired: Aug 11, 2021, 2:45 PM EDT
In force: 43 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties DeKalb County, IN, Steuben County, IN, Branch County, MI, Hillsdale County, MI, Defiance County, OH, Fulton County, OH, Henry County, OH, Williams County, OH

The radar

The Northern Indiana radar (KIWX), 103 km from the middle of the area, began a volume at 18:05 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, 2:05 PM EDT	TSTM WND DMG	2 Wnw Waterloo, IN	A PORTION OF US-6 WAS BLOCKED BY EITHER A TREE OR KNOCKED DOWN ROAD SIGN.
Aug 11, 2:12 PM EDT	TSTM WND DMG	Bryan, OH	CORN FLATTENED AND SEVERAL TREES DOWN.
Aug 11, 2:12 PM EDT	TSTM WND GST 48	1 Nnw Bryan, OH
Aug 11, 2:13 PM EDT	TSTM WND DMG	Angola, IN	EMERGENCY MANAGER REPORTS TREES DOWN AND 40 MPH WIND GUSTS IN STEUBEN COUNTY.
Aug 11, 2:17 PM EDT	TSTM WND DMG	Hillsdale, MI	REPORT FROM MPING: SHINGLES BLOWN OFF.
Aug 11, 2:20 PM EDT	TSTM WND DMG	Hillsdale, MI	REPORT FROM MPING: 3-INCH TREE LIMBS BROKEN; POWER POLES BROKEN.
Aug 11, 2:40 PM EDT	TSTM WND GST 47	2 Sw Hallock, OH	MESONET STATION AS584 BRYAN.
Aug 11, 2:40 PM EDT	TORNADO	Fayette, OH	EF1 WITH A PATH LENGTH OF 0.22 MILES AND MAXIMUM WIDTH OF 70 YARDS. ESTIMATED WIND SPEEDS OF 85 TO 90 MPH.
Aug 11, 2:42 PM EDT	TSTM WND DMG	Fayette, OH	NUMEROUS POWERLINES, TREES, AND LIMBS DOWNED IN SOUTH FAYETTE AND EASTWARD ALONG US HIGHWAY 20 (BETWEEN CR 19 AND 23). THERE WERE LIMBS RANGING FROM 6 INCHES TO AROUND 2 FEET IN DIAMETER. SEVERAL PINE TREES OF AROUND 1 TO 2 FEET IN DIAMETER WERE SNAPPED OFF, M
Aug 11, 2:42 PM EDT	TSTM WND GST 60	1 N Blakeslee, OH	ESTIMATED 60 MPH WIND GUSTS.
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 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.

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, 6.0 hours before the alert went out and 144 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.

603 
WUUS53 KIWX 111802
SVRIWX
INC033-151-MIC023-059-OHC039-051-069-171-111845-
/O.NEW.KIWX.SV.W.0090.210811T1802Z-210811T1845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
202 PM EDT Wed Aug 11 2021

The National Weather Service in Northern Indiana has issued a

* Severe Thunderstorm Warning for...
  Steuben County in northeastern Indiana...
  Northeastern De Kalb County in northeastern Indiana...
  Eastern Branch County in southwestern Michigan...
  Hillsdale County in southeastern Michigan...
  Northern Defiance County in northwestern Ohio...
  Northwestern Henry County in northwestern Ohio...
  Williams County in northwestern Ohio...
  Western Fulton County in northwestern Ohio...

* Until 245 PM EDT.

* At 202 PM EDT, severe thunderstorms were located along a line
  extending from near Burlington to near Reading to Butler, moving
  east at 45 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Coldwater, Napoleon, Angola, Bryan, Hillsdale, Wauseon, Archbold,
  Montpelier, Butler, Jonesville, Waterloo, Fremont, Edgerton, West
  Unity, Quincy, Hamilton, Pioneer, Litchfield, Stryker and Fayette.

This includes the following highways...
 Interstate 69 in Indiana between mile markers 332 and 357.
 Interstate 69 in Michigan between mile markers 1 and 21.
 Interstate 80 in Indiana between mile markers 142 and 156.
 Interstate 80 in Ohio between mile markers 0 and 36.

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 4171 8436 4171 8410 4136 8413 4141 8510
      4183 8502 4207 8508 4207 8437
TIME...MOT...LOC 1802Z 270DEG 39KT 4207 8502 4180 8482 4142 8489 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

CM

2 follow-up statements

341 
WWUS53 KIWX 111824
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
224 PM EDT Wed Aug 11 2021

INC033-151-MIC023-059-OHC039-051-069-171-111845-
/O.CON.KIWX.SV.W.0090.000000T0000Z-210811T1845Z/
Steuben IN-De Kalb IN-Branch MI-Hillsdale MI-Defiance OH-Henry OH-
Williams OH-Fulton OH-
224 PM EDT Wed Aug 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM EDT
FOR EASTERN STEUBEN...NORTHEASTERN DE KALB...EASTERN BRANCH...
HILLSDALE...NORTHERN DEFIANCE...NORTHWESTERN HENRY...WILLIAMS AND
WESTERN FULTON COUNTIES...

At 224 PM EDT, severe thunderstorms were located along a line
extending from near Litchfield to 8 miles north of Pioneer to near
Bryan, moving east at 45 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, Hillsdale, Wauseon, Archbold, Montpelier, Butler,
Jonesville, Waterloo, Edgerton, West Unity, Hamilton, Pioneer,
Litchfield, Stryker, Fayette, Reading, Edon, Holiday City and
Edgerton In Williams County.

This includes the following highways...
 Interstate 80 in Indiana between mile markers 150 and 156.
 Interstate 80 in Ohio between mile markers 0 and 36.

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 4171 8436 4171 8410 4136 8413 4141 8502
      4183 8486 4207 8488 4207 8437
TIME...MOT...LOC 1824Z 270DEG 39KT 4207 8472 4180 8452 4142 8459 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

CM

147 
WWUS53 KIWX 111836
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
236 PM EDT Wed Aug 11 2021

INC033-151-MIC023-111845-
/O.CAN.KIWX.SV.W.0090.000000T0000Z-210811T1845Z/
Steuben IN-De Kalb IN-Branch MI-
236 PM EDT Wed Aug 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN STEUBEN...NORTHEASTERN
DE KALB AND EASTERN BRANCH 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
northeastern Indiana...southeastern Michigan...and northwestern Ohio.

LAT...LON 4171 8436 4171 8410 4136 8413 4140 8480
      4148 8481 4179 8470 4207 8465 4207 8437
TIME...MOT...LOC 1835Z 270DEG 39KT 4207 8456 4180 8436 4142 8443 

$$

MIC059-OHC039-051-069-171-111845-
/O.CON.KIWX.SV.W.0090.000000T0000Z-210811T1845Z/
Hillsdale MI-Defiance OH-Henry OH-Williams OH-Fulton OH-
236 PM EDT Wed Aug 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM EDT
FOR HILLSDALE...NORTHERN DEFIANCE...NORTHWESTERN HENRY...WILLIAMS AND
WESTERN FULTON COUNTIES...

At 235 PM EDT, severe thunderstorms were located along a line
extending from 8 miles northeast of Jonesville to near Hudson to near
Stryker, moving east at 45 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, Hillsdale, Wauseon, Archbold, Montpelier,
Jonesville, Edgerton, West Unity, Pioneer, Stryker, Fayette, Edon,
Holiday City, Edgerton In Williams County, Jerome, Somerset, West
Jefferson, Cambria and Pulaski.

This includes Interstate 80 in Ohio between mile markers 3 and 36.
 
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 4171 8436 4171 8410 4136 8413 4140 8480
      4148 8481 4179 8470 4207 8465 4207 8437
TIME...MOT...LOC 1835Z 270DEG 39KT 4207 8456 4180 8436 4142 8443 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

CM

The 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, 2:14 PM EDT	Severe Thunderstorm Warning	IWX	Defiance, Paulding, Putnam, Van Wert	46 min
Aug 11, 2:44 PM EDT	Severe Thunderstorm Warning	IWX	Defiance, Fulton, Henry, Williams	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
Aug 10, 8:49 PM EDT	Special Marine Warning	IWX		86 min
Aug 10, 11:02 PM EDT	Severe Thunderstorm Warning	IWX	Fulton, Marshall, Pulaski, Starke	43 min
Aug 10, 11:41 PM EDT	Severe Thunderstorm Warning	IWX	Fulton, Kosciusko, Marshall, Miami, Pulaski	34 min
Aug 11, 12:05 AM EDT	Severe Thunderstorm Warning	IWX	Fulton, Huntington, Kosciusko, Miami, Wabash, Whitley	40 min
Aug 11, 12:29 AM EDT	Special Weather Statement	IWX	Huntington	31 min
Aug 11, 12:38 AM EDT	Special Weather Statement	IWX	Allen	22 min
Aug 11, 3:57 AM EDT	Special Weather Statement	IWX	Cass, White	33 min
Aug 11, 4:46 AM EDT	Special Weather Statement	IWX	Cass, Fulton, Miami	44 min
Aug 11, 4:59 AM EDT	Special Weather Statement	IWX	Kosciusko	46 min
Aug 11, 5:21 AM EDT	Special Weather Statement	IWX	LaPorte	39 min
Aug 11, 5:49 AM EDT	Special Weather Statement	IWX	Noble	41 min
Aug 11, 5:52 AM EDT	Special Weather Statement	IWX	LaPorte	38 min
Aug 11, 5:54 AM EDT	Special Weather Statement	IWX	Whitley	51 min
Aug 11, 11:22 AM EDT	Special Weather Statement	IWX	Starke	38 min
Aug 11, 11:36 AM EDT	Special Marine Warning	IWX		54 min
Aug 11, 12:00 PM EDT	Special Weather Statement	IWX	Kosciusko, LaPorte, Marshall, Saint Joseph, Starke	30 min
Aug 11, 12:16 PM EDT	Severe Thunderstorm Warning	IWX	Kosciusko, Marshall	29 min
Aug 11, 12:29 PM EDT	Special Weather Statement	IWX	Elkhart, Fulton, Kosciusko, LaPorte, Marshall, Pulaski and 2 more	46 min
Aug 11, 12:34 PM EDT	Special Marine Warning	IWX		56 min
Aug 11, 12:43 PM EDT	Areal Flood Advisory	IWX	Kosciusko, LaPorte, Marshall, Pulaski, Saint Joseph, Starke	3 hr
Aug 11, 12:47 PM EDT	Severe Thunderstorm Warning	IWX	Elkhart, Fulton, Kosciusko, Marshall, Saint Joseph	43 min
Aug 11, 12:54 PM EDT	Severe Thunderstorm Warning	IWX	Cass, Fulton, Kosciusko, Miami, Pulaski, Wabash	36 min
Aug 11, 1:17 PM EDT	Severe Thunderstorm Warning	IWX	Allen, DeKalb, Elkhart, Huntington, Kosciusko, Miami and 3 more	43 min
Aug 11, 1:29 PM EDT	Special Marine Warning	IWX		46 min
Aug 11, 2:05 PM EDT	Severe Thunderstorm Warning	IWX	Blackford, Grant, Huntington, Jay, Wells	55 min
Aug 11, 3:01 PM EDT	Severe Thunderstorm Warning	IWX	Jay	29 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2021 Severe Thunderstorm Warnings in Michigan, 2021 Severe Thunderstorm Warnings in Indiana, 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.