Alert archive / Ohio / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 40, NWS Northern Indiana
NWS Northern Indiana issued this severe thunderstorm warning at Jun 21, 2021, 3:39 AM EDT for 4 counties in Ohio. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 21, 2021, 3:39 AM EDT (07:39 UTC)
- Expired
- Jun 21, 2021, 4:17 AM EDT
- In force
- 38 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), 122 km from the middle of the area, began a volume at 07:38 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.
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 21, 1:00 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 7.7 hours before the alert went out and 148 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
- 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
The text
As transmitted.
809
WUUS53 KIWX 210739
SVRIWX
OHC039-051-069-171-210830-
/O.NEW.KIWX.SV.W.0040.210621T0739Z-210621T0830Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
339 AM EDT Mon Jun 21 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 430 AM EDT.
* At 339 AM EDT, severe thunderstorms were located along a line
extending from near Onsted to near Morenci to 7 miles southeast of
Bryan, moving east at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Napoleon, Wauseon, Archbold, Swanton, Delta, Stryker, Liberty
Center, Mcclure, Metamora, Lyons, Texas, Ney, Evansport, Oakshade,
Seward, Ridgeville Corners, Gerald, Denson, Assumption and Colton.
This includes Interstate 80 in Ohio between mile markers 23 and 48.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4138 8458 4168 8430 4171 8429 4172 8388
4136 8388
TIME...MOT...LOC 0739Z 266DEG 47KT 4206 8413 4168 8413 4138 8447
HAIL...<.75IN
WIND...60MPH
$$
MARSILI2 follow-up statements
930
WWUS53 KIWX 210755
SVSIWX
Severe Weather Statement
National Weather Service Northern Indiana
355 AM EDT Mon Jun 21 2021
OHC039-051-069-171-210830-
/O.CON.KIWX.SV.W.0040.000000T0000Z-210621T0830Z/
Defiance OH-Henry OH-Williams OH-Fulton OH-
355 AM EDT Mon Jun 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 AM EDT
FOR NORTHEASTERN DEFIANCE...NORTHERN HENRY...SOUTHEASTERN WILLIAMS
AND FULTON COUNTIES...
At 355 AM EDT, severe thunderstorms were located along a line
extending from near Clinton to 7 miles north of Swanton to near
Napoleon, moving east at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Napoleon, Wauseon, Archbold, Swanton, Delta, Liberty Center, Mcclure,
Metamora, Lyons, Texas, Evansport, Oakshade, Pettisville, Brailey,
Seward, Ridgeville Corners, Gerald, Denson, Winameg and Assumption.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4138 8450 4170 8421 4171 8414 4172 8388
4136 8388
TIME...MOT...LOC 0755Z 266DEG 47KT 4207 8389 4169 8389 4139 8423
HAIL...<.75IN
WIND...60MPH
$$
MARSILI025
WWUS53 KIWX 210817
SVSIWX
Severe Weather Statement
National Weather Service Northern Indiana
417 AM EDT Mon Jun 21 2021
OHC039-051-069-171-210827-
/O.CAN.KIWX.SV.W.0040.000000T0000Z-210621T0830Z/
Defiance OH-Henry OH-Williams OH-Fulton OH-
417 AM EDT Mon Jun 21 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DEFIANCE...
NORTHERN HENRY...SOUTHEASTERN WILLIAMS AND FULTON COUNTIES IS
CANCELLED...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled. However gusty winds are
still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 600 AM EDT for
northwestern Ohio.
LAT...LON 4138 8450 4170 8421 4171 8414 4172 8388
4136 8388
TIME...MOT...LOC 0815Z 266DEG 47KT 4209 8354 4171 8354 4141 8388
$$
MARSILIThe 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, 9:13 PM EDT | Severe Thunderstorm Warning | IWX | Defiance, Fulton, Henry, Williams | 47 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, 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, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.