Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 1, NWS Northern Indiana

June 18, 20214 counties in Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Jun 18, 2021, 2:52 PM EDT for 4 counties in Indiana. 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 18, 2021, 2:52 PM EDT (18:52 UTC)
Expired: Jun 18, 2021, 3:30 PM EDT
In force: 38 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Hail: 1.25 in
Wind: 70.0 mph

Counties Grant County, IN, Huntington County, IN, Miami County, IN, Wabash County, IN

The radar

The Northern Indiana radar (KIWX), 76 km from the middle of the area, began a volume at 18:51 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 nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 6.9 hours before the alert went out and 221 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1560 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 110 m²/s²
0-3 km storm-relative helicity: 97 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

397 
WUUS53 KIWX 181852
SVRIWX
INC053-069-103-169-181930-
/O.NEW.KIWX.SV.W.0001.210618T1852Z-210618T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
252 PM EDT Fri Jun 18 2021

The National Weather Service in Northern Indiana has issued a

* Severe Thunderstorm Warning for...
  Southern Wabash County in north central Indiana...
  Northern Grant County in central Indiana...
  Southwestern Huntington County in northeastern Indiana...
  Southeastern Miami County in north central Indiana...

* Until 330 PM EDT.

* At 252 PM EDT, a severe thunderstorm was located near Wabash,
  moving east at 30 mph.

  HAZARD...70 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect considerable 
           tree damage. Wind damage is also likely to mobile homes, 
           roofs, and outbuildings.

* Locations impacted include...
  Marion, Wabash, La Fontaine, Lancaster, Mount Etna, Landess,
  Lincolnville, Jalapa, Santa Fe, Hanfield, Treaty, Majenica, Banquo,
  Peoria, Lake Wood, Somerset and Pleasant Plain.

This includes Interstate 69 in Indiana between mile markers 265 and
272.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4064 8605 4078 8603 4078 8543 4055 8556
TIME...MOT...LOC 1852Z 280DEG 28KT 4074 8591 

HAIL...1.25IN
WIND...70MPH
 
$$

JBALL

1 follow-up statement

526 
WWUS53 KIWX 181918
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
318 PM EDT Fri Jun 18 2021

INC103-181923-
/O.CAN.KIWX.SV.W.0001.000000T0000Z-210618T1930Z/
Miami IN-
318 PM EDT Fri Jun 18 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MIAMI COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4067 8589 4076 8588 4078 8543 4055 8556
TIME...MOT...LOC 1913Z 300DEG 23KT 4066 8576 

$$

INC053-069-169-181930-
/O.CON.KIWX.SV.W.0001.000000T0000Z-210618T1930Z/
Wabash IN-Grant IN-Huntington IN-
318 PM EDT Fri Jun 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR SOUTHERN WABASH...NORTHEASTERN GRANT AND SOUTHWESTERN HUNTINGTON
COUNTIES...

At 313 PM EDT, a severe thunderstorm was located over La Fontaine, or
9 miles northwest of Marion, moving southeast at 25 mph.

HAZARD...70 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

This severe thunderstorm will remain over mainly rural areas of
southern Wabash, northeastern Grant and southwestern Huntington
Counties, including the following locations... Hanfield, Treaty,
Majenica, Landess, Banquo, Lancaster, Mount Etna, Lincolnville, Lake
Wood and Jalapa.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

&&

LAT...LON 4067 8589 4076 8588 4078 8543 4055 8556
TIME...MOT...LOC 1913Z 300DEG 23KT 4066 8576 

HAIL...1.25IN
WIND...70MPH
 
$$

JBALL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 5:53 AM EDT	Special Marine Warning	IWX		82 min
Jun 18, 6:39 AM EDT	Special Weather Statement	IWX	LaPorte, Saint Joseph	66 min
Jun 18, 7:15 AM EDT	Special Weather Statement	IWX	Elkhart, LaGrange	45 min
Jun 18, 7:56 AM EDT	Special Weather Statement	IWX	DeKalb, Steuben	64 min
Jun 18, 8:22 AM EDT	Special Weather Statement	IWX	Adams, Allen, Wells	53 min
Jun 18, 2:21 PM EDT	Special Weather Statement	IWX	Miami	24 min
Jun 18, 2:45 PM EDT	Special Weather Statement	IWX	Grant, Miami	45 min
Jun 18, 3:28 PM EDT	Severe Thunderstorm Warning	IWX	Blackford, Grant, Huntington, Wabash, Wells	47 min
Jun 18, 3:34 PM EDT	Severe Thunderstorm Warning	IWX	Adams, Jay, Wells	41 min
Jun 18, 3:54 PM EDT	Tornado Warning	IWX	Jay	19 min
Jun 18, 3:58 PM EDT	Severe Thunderstorm Warning	IWX	Blackford, Jay	47 min
Jun 18, 4:16 PM EDT	Severe Thunderstorm Warning	IWX	Jay	13 min
Jun 18, 4:48 PM EDT	Severe Thunderstorm Warning	IWX	Jay	18 min
Jun 18, 6:48 PM EDT	Special Weather Statement	IWX	Jay	27 min

Nearby

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.