Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 3, NWS Northern Indiana

June 18, 2021Adams County, Jay County, Wells County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Jun 18, 2021, 3:34 PM EDT for Adams County, Jay County, Wells County, Indiana. It was in force for 41 min. 1 report 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 18, 2021, 3:34 PM EDT (19:34 UTC)
Expired: Jun 18, 2021, 4:15 PM EDT
In force: 41 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Tornado: Possible
Hail: 1.25 in
Wind: 60.0 mph

Counties Adams County, IN, Jay County, IN, Wells County, IN

The radar

The Northern Indiana radar (KIWX), 101 km from the middle of the area, began a volume at 19:35 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 18, 3:57 PM EDT	TORNADO	2 Ssw Trinity, IN	LARGE WEDGE TORNADO REPORTED ON THE GROUND MOVING ESE. APPROXIMATELY 200 YARDS WIDE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.6 hours before the alert went out and 168 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.

147 
WUUS53 KIWX 181934
SVRIWX
INC001-075-179-182015-
/O.NEW.KIWX.SV.W.0003.210618T1934Z-210618T2015Z/

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

The National Weather Service in Northern Indiana has issued a

* Severe Thunderstorm Warning for...
  Southeastern Wells County in northeastern Indiana...
  Southern Adams County in northeastern Indiana...
  Northern Jay County in east central Indiana...

* Until 415 PM EDT.

* At 333 PM EDT, a severe thunderstorm was located near Berne, moving
  east at 35 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Berne, Geneva, Westchester, Nottingham, Bryant, Vera Cruz, Trinity,
  Ceylon, Reiffsburg, Petroleum, Linn Grove, Domestic, New Corydon
  and Fiat.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4055 8520 4057 8520 4070 8516 4070 8480
      4046 8480
TIME...MOT...LOC 1933Z 277DEG 30KT 4064 8501 

TORNADO...POSSIBLE
HAIL...1.25IN
WIND...60MPH
 
$$

MARSILI

1 follow-up statement

347 
WWUS53 KIWX 181946
SVSIWX

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

INC179-181954-
/O.CAN.KIWX.SV.W.0003.000000T0000Z-210618T2015Z/
Wells IN-
346 PM EDT Fri Jun 18 2021

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

LAT...LON 4052 8507 4058 8507 4065 8506 4070 8480
      4046 8480
TIME...MOT...LOC 1944Z 289DEG 25KT 4060 8492 

$$

INC001-075-182015-
/O.CON.KIWX.SV.W.0003.000000T0000Z-210618T2015Z/
Adams IN-Jay IN-
346 PM EDT Fri Jun 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR SOUTHERN ADAMS AND NORTHEASTERN JAY COUNTIES...

At 344 PM EDT, a severe thunderstorm was located over Geneva, or near
Berne, moving east at 30 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Berne, Geneva, Westchester, Bryant, Trinity, Linn Grove, New Corydon
and Ceylon.

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 4052 8507 4058 8507 4065 8506 4070 8480
      4046 8480
TIME...MOT...LOC 1944Z 289DEG 25KT 4060 8492 

TORNADO...POSSIBLE
HAIL...1.25IN
WIND...60MPH
 
$$

MARSILI

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, 2:52 PM EDT	Severe Thunderstorm Warning	IWX	Grant, Huntington, Miami, Wabash	38 min
Jun 18, 3:28 PM EDT	Severe Thunderstorm Warning	IWX	Blackford, Grant, Huntington, Wabash, Wells	47 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.