Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 9, NWS Northern Indiana

June 19, 2021LaPorte County, Saint Joseph County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Jun 19, 2021, 7:16 PM CDT for LaPorte County, Saint Joseph County, Indiana. It was in force for 44 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, 7:16 PM CDT (00:16 UTC)
Expired
Jun 19, 2021, 8:00 PM CDT
In force
44 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties LaPorte County, IN, Saint Joseph County, IN

The radar

The Northern Indiana radar (KIWX), 82 km from the middle of the area, began a volume at 00:18 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

Lincoln, IL (KILX), launched 00:00Z, 0.3 hours before the alert went out and 231 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°0°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.

111 
WUUS53 KIWX 200016
SVRIWX
INC091-141-200100-
/O.NEW.KIWX.SV.W.0009.210620T0016Z-210620T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
816 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...
  Northern La Porte County in northwestern Indiana...

* Until 900 PM EDT/800 PM CDT/.

* At 816 PM EDT/716 PM CDT/, a severe thunderstorm was located over
  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, Kingsbury, Byron, Pinola,
  Springville, Salem Heights, Fish Lake, Stillwell and South Center.

This includes Interstate 80 in Indiana between mile markers 42 and
53.
 
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 4170 8671 4156 8629 4143 8656 4163 8690
TIME...MOT...LOC 0016Z 298DEG 21KT 4164 8670 

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

MARSILI
1 follow-up statement
024 
WWUS53 KIWX 200027
SVSIWX

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

INC091-141-200100-
/O.CON.KIWX.SV.W.0009.000000T0000Z-210620T0100Z/
St. Joseph IN-La Porte IN-
827 PM EDT Sat Jun 19 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM
EDT/800 PM CDT/ FOR SOUTHWESTERN ST. JOSEPH AND NORTHERN LA PORTE
COUNTIES...

At 827 PM EDT/727 PM CDT/, a severe thunderstorm was located 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, Kingsbury, Byron, Pinola, Salem
Heights, Fish Lake, Rolling Prarie, Stillwell and South Center.

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 4156 8629 4143 8656 4161 8687 4169 8667
TIME...MOT...LOC 0027Z 298DEG 21KT 4161 8662 

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

MARSILI

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 7:20 PM CDTSevere Thunderstorm WarningIWXElkhart, LaGrange, Saint Joseph40 min
Jun 19, 7:51 PM CDTAreal Flood AdvisoryIWXElkhart, LaGrange, Saint Joseph3 hr
Jun 19, 7:53 PM CDTSevere Thunderstorm WarningIWXLaPorte, Marshall, Saint Joseph, Starke52 min
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.