Alert archive / Ohio / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 31, NWS Northern Indiana

June 20, 20214 counties in Ohio

NWS Northern Indiana issued this severe thunderstorm warning at Jun 20, 2021, 9:13 PM EDT for 4 counties in Ohio. It was in force for 47 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: Jun 20, 2021, 9:13 PM EDT (01:13 UTC)
Expired: Jun 20, 2021, 10:00 PM EDT
In force: 47 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Defiance County, OH, Fulton County, OH, Henry County, OH, Williams County, OH

The radar

The Northern Indiana radar (KIWX), 128 km from the middle of the area, began a volume at 01:14 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
Jun 20, 9:20 PM EDT	TSTM WND DMG	3 Wsw Ridgeville Corner, OH	POWER LINES DOWNED.
Jun 20, 9:25 PM EDT	TSTM WND GST 40	3 Wnw Ridgeville Corner, OH	MESONET STATION ARCHB 2 WNW RIDGEVILLE CORNERS.
Jun 20, 9:58 PM EDT	TSTM WND DMG	1 E Liberty Center, OH	LIMBS DOWN JUST EAST OF LIBERTY CENTER, OH. LIMBS RANGE FROM 3 TO 5 IN DIAMETER. TOWN IS WITHOUT POWER.
Jun 20, 10:00 PM EDT	TSTM WND DMG	2 Ne Gallup, OH	TREE DOWNED AND BLOCKING THE ROAD.
Jun 20, 10:05 PM EDT	TSTM WND DMG	3 N Gallup, OH	WIRES DOWN AT 14430 COUNTY ROAD B. REPORTED BY WAUSEON FIRE DEPT.
Jun 20, 10:07 PM EDT	TSTM WND DMG	1 Nw Liberty Center, OH	TREE DOWNED.
Jun 20, 10:10 PM EDT	TSTM WND DMG	2 Wnw Colton, OH	POWERLINES DOWNED.

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
Jun 20, 6:06 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 1.2 hours before the alert went out and 150 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: 133 J/kg
Mixed-layer CIN: -112 J/kg
Mixed-layer LCL: 1501 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 102 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

254 
WUUS53 KIWX 210113
SVRIWX
OHC039-051-069-171-210200-
/O.NEW.KIWX.SV.W.0031.210621T0113Z-210621T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
913 PM EDT Sun Jun 20 2021

The National Weather Service in Northern Indiana has issued a

* Severe Thunderstorm Warning for...
  Northeastern Defiance County in northwestern Ohio...
  Northern Henry County in northwestern Ohio...
  Southeastern Williams County in northwestern Ohio...
  Fulton County in northwestern Ohio...

* Until 1000 PM EDT.

* At 913 PM EDT, a severe thunderstorm was located near Defiance,
  moving northeast at 30 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, Liberty Center,
  Metamora, Evansport, Pettisville, Brailey, Ridgeville Corners,
  Gerald, Winameg, Assumption, Colton and Ottokee.

This includes Interstate 80 in Ohio between mile markers 32 and 48.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4131 8442 4142 8447 4172 8400 4172 8388
      4145 8388
TIME...MOT...LOC 0113Z 233DEG 26KT 4138 8438 

HAIL...0.75IN
WIND...60MPH
 
$$

Brown

4 follow-up statements

834 
WWUS53 KIWX 210128
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
928 PM EDT Sun Jun 20 2021

OHC171-210138-
/O.CAN.KIWX.SV.W.0031.000000T0000Z-210621T0200Z/
Williams OH-
928 PM EDT Sun Jun 20 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WILLIAMS 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 100 AM EDT for
northwestern Ohio.

LAT...LON 4134 8430 4143 8435 4146 8434 4172 8400
      4172 8388 4145 8388
TIME...MOT...LOC 0128Z 233DEG 26KT 4145 8426 

$$

OHC039-051-069-210200-
/O.CON.KIWX.SV.W.0031.000000T0000Z-210621T0200Z/
Defiance OH-Henry OH-Fulton OH-
928 PM EDT Sun Jun 20 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR NORTHEASTERN DEFIANCE...NORTHERN HENRY AND EASTERN FULTON
COUNTIES...

At 928 PM EDT, a severe thunderstorm was located near Archbold,
moving northeast at 30 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Napoleon, Wauseon, Swanton, Delta, Liberty Center, Metamora,
Pettisville, Brailey, Ridgeville Corners, Gerald, Winameg,
Assumption, Colton and Ottokee.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4134 8430 4143 8435 4146 8434 4172 8400
      4172 8388 4145 8388
TIME...MOT...LOC 0128Z 233DEG 26KT 4145 8426 

HAIL...1.00IN
WIND...60MPH
 
$$

Brown

115 
WWUS53 KIWX 210141
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
941 PM EDT Sun Jun 20 2021

OHC039-210150-
/O.CAN.KIWX.SV.W.0031.000000T0000Z-210621T0200Z/
Defiance OH-
941 PM EDT Sun Jun 20 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DEFIANCE 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 100 AM EDT for
northwestern Ohio.

LAT...LON 4137 8421 4145 8422 4147 8420 4160 8394
      4162 8388 4145 8388
TIME...MOT...LOC 0140Z 233DEG 26KT 4151 8416 

$$

OHC051-069-210200-
/O.CON.KIWX.SV.W.0031.000000T0000Z-210621T0200Z/
Henry OH-Fulton OH-
941 PM EDT Sun Jun 20 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR NORTHEASTERN HENRY AND SOUTHEASTERN FULTON COUNTIES...

At 940 PM EDT, a severe thunderstorm was located near Wauseon, moving
northeast at 30 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Napoleon, Swanton, Delta, Liberty Center, Colton, Brailey and Gerald.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4137 8421 4145 8422 4147 8420 4160 8394
      4162 8388 4145 8388
TIME...MOT...LOC 0140Z 233DEG 26KT 4151 8416 

HAIL...0.88IN
WIND...60MPH
 
$$

Brown

640 
WWUS53 KIWX 210143
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
943 PM EDT Sun Jun 20 2021

OHC051-069-210200-
/O.CON.KIWX.SV.W.0031.000000T0000Z-210621T0200Z/
Henry OH-Fulton OH-
943 PM EDT Sun Jun 20 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR NORTHEASTERN HENRY AND SOUTHEASTERN FULTON COUNTIES...

At 942 PM EDT, a severe thunderstorm was located over Wauseon, moving
northeast at 30 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Napoleon, Swanton, Delta, Liberty Center, Colton, Brailey and Gerald.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4137 8421 4145 8422 4147 8420 4160 8394
      4162 8388 4145 8388
TIME...MOT...LOC 0142Z 233DEG 26KT 4152 8414 

TORNADO...POSSIBLE
HAIL...0.88IN
WIND...60MPH
 
$$

Brown

914 
WWUS53 KIWX 210147
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
947 PM EDT Sun Jun 20 2021

OHC051-069-210200-
/O.CON.KIWX.SV.W.0031.000000T0000Z-210621T0200Z/
Henry OH-Fulton OH-
947 PM EDT Sun Jun 20 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR NORTHEASTERN HENRY AND SOUTHEASTERN FULTON COUNTIES...

At 947 PM EDT, a severe thunderstorm was located over Wauseon, moving
northeast at 30 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Napoleon, Swanton, Delta, Liberty Center, Colton and Brailey. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4140 8410 4146 8414 4149 8415 4160 8394
      4162 8388 4145 8388
TIME...MOT...LOC 0147Z 233DEG 26KT 4154 8410 

TORNADO...POSSIBLE
HAIL...0.88IN
WIND...60MPH
 
$$

Brown

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 20, 8:43 PM EDT	Severe Thunderstorm Warning	IWX	Fulton	32 min
Jun 20, 9:56 PM EDT	Severe Thunderstorm Warning	IWX	Fulton, Henry	34 min
Jun 20, 11:32 PM EDT	Special Weather Statement	IWX	Putnam	43 min
Jun 21, 2:49 AM EDT	Special Weather Statement	IWX	Williams	26 min
Jun 21, 3:25 AM EDT	Special Weather Statement	IWX	Defiance, Fulton, Henry, Paulding, Williams	35 min
Jun 21, 3:39 AM EDT	Severe Thunderstorm Warning	IWX	Defiance, Fulton, Henry, Williams	38 min
Jun 21, 4:11 AM EDT	Special Weather Statement	IWX	Defiance, Henry, Paulding, Putnam, Van Wert	34 min
Jun 21, 4:37 AM EDT	Special Weather Statement	IWX	Allen	38 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.