Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 11, NWS Northern Indiana

June 19, 20214 counties in Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Jun 19, 2021, 7:53 PM CDT for 4 counties in Indiana. It was in force for 52 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 19, 2021, 7:53 PM CDT (00:53 UTC)
Expired
Jun 19, 2021, 8:45 PM CDT
In force
52 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties LaPorte County, IN, Marshall County, IN, Saint Joseph County, IN, Starke County, IN

The radar

The Northern Indiana radar (KIWX), 77 km from the middle of the area, began a volume at 00:55 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
Jun 19, 7:50 PM CDTSevere Thunderstorm WatchSPC3 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.9 hours before the alert went out and 222 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, Lincoln, IL at 00:00Z on 2021-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2088 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, Lincoln, IL at 00:00Z on 2021-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.19395878Sfc1 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
2088 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
1087 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.7

Open this sounding in Storm Lab

The text

As transmitted.

659 
WUUS53 KIWX 200053
SVRIWX
INC091-099-141-149-200145-
/O.NEW.KIWX.SV.W.0011.210620T0053Z-210620T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
853 PM EDT Sat Jun 19 2021

The National Weather Service in Northern Indiana has issued a

* Severe Thunderstorm Warning for...
  Southwestern St. Joseph County in north central Indiana...
  Northeastern Starke County in northwestern Indiana...
  Northwestern Marshall County in north central Indiana...
  Central La Porte County in northwestern Indiana...

* Until 945 PM EDT/845 PM CDT/.

* At 852 PM EDT/752 PM CDT/, a severe thunderstorm was located over
  Kingsford Heights, or near La Porte, moving southeast at 25 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...
  La Porte, Walkerton, North Liberty, Kingsford Heights, Hamlet,
  Koontz Lake, Oak Grove, Kingsbury, Teegarden, South Center, Salem
  Heights, Fish Lake, Tracy, Stillwell, Tyner, Union Mills, Donaldson
  and Grovertown.

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 4148 8682 4161 8667 4149 8630 4125 8647
TIME...MOT...LOC 0052Z 303DEG 21KT 4151 8668 

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

MARSILI
1 follow-up statement
670 
WWUS53 KIWX 200123
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
923 PM EDT Sat Jun 19 2021

INC091-099-141-149-200145-
/O.CON.KIWX.SV.W.0011.000000T0000Z-210620T0145Z/
St. Joseph IN-Starke IN-Marshall IN-La Porte IN-
923 PM EDT Sat Jun 19 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM
EDT/845 PM CDT/ FOR SOUTHWESTERN ST. JOSEPH...NORTHEASTERN STARKE...
NORTHWESTERN MARSHALL AND EAST CENTRAL LA PORTE COUNTIES...

At 923 PM EDT/823 PM CDT/, a severe thunderstorm was located near
Kingsford Heights, or 9 miles north of Knox, moving east at 25 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...
Walkerton, Kingsford Heights, Hamlet, Koontz Lake, Oak Grove,
Teegarden, South Center, Donaldson, Salem Heights, Tracy, Tyner and
Grovertown.

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 4145 8677 4151 8666 4149 8630 4125 8647
TIME...MOT...LOC 0123Z 292DEG 16KT 4143 8664 

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

MARSILI

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 7:16 PM CDTSevere Thunderstorm WarningIWXLaPorte, Saint Joseph44 min
Jun 19, 7:20 PM CDTSevere Thunderstorm WarningIWXElkhart, LaGrange, Saint Joseph40 min
Jun 19, 7:51 PM CDTAreal Flood AdvisoryIWXElkhart, LaGrange, Saint Joseph3 hr
Jun 19, 8:14 PM CDTAreal Flood AdvisoryIWXLaPorte, Saint Joseph, Starke3 hr
Jun 19, 8:21 PM CDTSevere Thunderstorm WarningIWXSteuben39 min
Jun 19, 8:43 PM CDTSevere Thunderstorm WarningIWXMarshall, Starke47 min
Jun 19, 9:30 PM CDTSevere Thunderstorm WarningIWXPulaski, Starke60 min
Jun 20, 3:49 AM CDTSmall Craft AdvisoryIWX45 hr
Jun 20, 4:12 AM CDTBeach Hazards StatementIWX49 hr
Jun 20, 4:52 PM CDTSevere Thunderstorm WarningIWXLaPorte, Marshall, Saint Joseph, Starke38 min
Jun 20, 4:57 PM CDTSevere Thunderstorm WarningIWXLaPorte, Starke33 min
Jun 20, 5:39 PM CDTSevere Thunderstorm WarningIWXElkhart, Fulton, Kosciusko, Marshall51 min
Jun 20, 5:42 PM CDTSevere Thunderstorm WarningIWXElkhart, Kosciusko, Marshall, Saint Joseph26 min
Jun 20, 5:53 PM CDTSevere Thunderstorm WarningIWXMarshall, Starke22 min
Jun 20, 6:07 PM CDTSevere Thunderstorm WarningIWXElkhart, Kosciusko, Marshall, Saint Joseph23 min
Jun 20, 6:19 PM CDTSevere Thunderstorm WarningIWXElkhart, LaGrange, Noble41 min
Jun 20, 6:47 PM CDTSpecial Marine WarningIWX28 min
Jun 20, 6:49 PM CDTSevere Thunderstorm WarningIWXAllen, DeKalb10 min

Nearby

Severe 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.