Alert archive / Ohio / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 67, NWS Northern Indiana

July 29, 2021Allen County, DeKalb County, Indiana; 4 counties in Ohio

NWS Northern Indiana issued this severe thunderstorm warning at Jul 29, 2021, 6:07 AM EDT for Allen County, DeKalb County, Indiana; 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
Jul 29, 2021, 6:07 AM EDT (10:07 UTC)
Expired
Jul 29, 2021, 6:45 AM EDT
In force
38 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Allen County, IN, DeKalb County, IN, Defiance County, OH, Paulding County, OH, Putnam County, OH, Van Wert County, OH

The radar

The Northern Indiana radar (KIWX), 91 km from the middle of the area, began a volume at 10:07 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.

IssuedProductOfficeLasted
Jul 29, 2:00 AM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 10.1 hours before the alert went out and 198 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-pSkew-T log-p diagram, Detroit, MI at 00:00Z on 2021-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 219 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 00:00Z on 2021-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
219 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
1416 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

576 
WUUS53 KIWX 291007
SVRIWX
INC003-033-OHC039-125-137-161-291045-
/O.NEW.KIWX.SV.W.0067.210729T1007Z-210729T1045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
607 AM EDT Thu Jul 29 2021

The National Weather Service in Northern Indiana has issued a

* Severe Thunderstorm Warning for...
  Allen County in northeastern Indiana...
  Eastern De Kalb County in northeastern Indiana...
  Western Putnam County in west central Ohio...
  Defiance County in northwestern Ohio...
  Paulding County in west central Ohio...
  Northern Van Wert County in west central Ohio...

* Until 645 AM EDT.

* At 607 AM EDT, severe thunderstorms were located along a line
  extending from near Butler to near Grabill to near Fort Wayne,
  moving east at 50 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Fort Wayne, Defiance, New Haven, Auburn, Hicksville, Butler,
  Paulding, Waterloo, Antwerp, Hamilton, Woodburn, Monroeville,
  Payne, Continental, Convoy, Grabill, Ottoville, St. Joe, Oakwood
  and Leo-cedarville.

This includes the following highways...
 Interstate 469 between mile markers 5 and 6, and between mile
markers 9 and 30.
 Interstate 69 in Indiana between mile markers 297 and 323.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4087 8435 4092 8480 4092 8481 4097 8532
      4126 8510 4152 8498 4153 8480 4143 8480
      4143 8425 4133 8423 4117 8423 4117 8419
TIME...MOT...LOC 1007Z 274DEG 45KT 4145 8494 4126 8503 4107 8519 

HAIL...<.75IN
WIND...60MPH
 
$$

PBM
1 follow-up statement
933 
WWUS53 KIWX 291032
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
632 AM EDT Thu Jul 29 2021

INC033-291042-
/O.CAN.KIWX.SV.W.0067.000000T0000Z-210729T1045Z/
De Kalb IN-
632 AM EDT Thu Jul 29 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN DE KALB COUNTY 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 900 AM EDT for
northeastern Indiana.

LAT...LON 4087 8435 4092 8480 4092 8481 4097 8511
      4116 8481 4132 8469 4143 8458 4143 8425
      4133 8423 4117 8423 4117 8419
TIME...MOT...LOC 1032Z 274DEG 46KT 4139 8453 4120 8462 4101 8479 

$$

INC003-OHC039-125-137-161-291045-
/O.CON.KIWX.SV.W.0067.000000T0000Z-210729T1045Z/
Allen IN-Putnam OH-Defiance OH-Paulding OH-Van Wert OH-
632 AM EDT Thu Jul 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 AM EDT
FOR SOUTHEASTERN ALLEN...WESTERN PUTNAM...DEFIANCE...PAULDING AND
NORTHERN VAN WERT COUNTIES...

At 632 AM EDT, severe thunderstorms were located along a line
extending from near Bryan to near Paulding to near Monroeville,
moving east at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Defiance, Paulding, Antwerp, Woodburn, Monroeville, Payne,
Continental, Convoy, Ottoville, Oakwood, Dixon, Grover Hill, Ney,
Dupont, Scott, Melrose, Haviland, Latty, Cecil and Cloverdale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4087 8435 4092 8480 4092 8481 4097 8511
      4116 8481 4132 8469 4143 8458 4143 8425
      4133 8423 4117 8423 4117 8419
TIME...MOT...LOC 1032Z 274DEG 46KT 4139 8453 4120 8462 4101 8479 

HAIL...<.75IN
WIND...60MPH
 
$$

PBM

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 3:10 AM EDTSpecial Marine WarningIWX2 hr
Jul 29, 4:17 AM EDTSpecial Weather StatementIWXElkhart28 min
Jul 29, 4:23 AM EDTSevere Thunderstorm WarningIWXElkhart, Kosciusko, LaPorte, Marshall, Saint Joseph52 min
Jul 29, 4:59 AM EDTSevere Thunderstorm WarningIWXElkhart, Kosciusko, Marshall, Noble, Saint Joseph46 min
Jul 29, 5:16 AM EDTSpecial Weather StatementIWXFulton, Pulaski, Starke44 min
Jul 29, 5:21 AM EDTSpecial Weather StatementIWXLaGrange, Steuben39 min
Jul 29, 5:25 AM EDTSevere Thunderstorm WarningIWXAllen, DeKalb, Kosciusko, Noble, Whitley50 min
Jul 29, 5:33 AM EDTSpecial Weather StatementIWXAllen, Cass, Miami, Wabash, Whitley42 min
Jul 29, 5:54 AM EDTSpecial Weather StatementIWXSteuben36 min
Jul 29, 6:17 AM EDTSpecial Weather StatementIWXAdams, Blackford, Grant, Jay, Wells43 min
Jul 29, 6:56 AM EDTSpecial Weather StatementIWXAllen, Putnam, Van Wert49 min

Nearby

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