Alert archive / Indiana / Tornado Warnings in 2021

Tornado Warning 7, NWS Northern Indiana

June 21, 2021LaPorte County, Starke County, Indiana

NWS Northern Indiana issued this tornado warning at Jun 21, 2021, 12:31 AM CDT for LaPorte County, Starke County, Indiana. It was in force for 29 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 21, 2021, 12:31 AM CDT (05:31 UTC)
Expired
Jun 21, 2021, 1:00 AM CDT
In force
29 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties LaPorte County, IN, Starke County, IN

The radar

The Northern Indiana radar (KIWX), 91 km from the middle of the area, began a volume at 05:33 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 21, 12:00 AM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 5.5 hours before the alert went out and 212 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 2021-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1632 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 2021-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 159 square meters per square second.193958Sfc1 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
1632 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
1351 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
159 m²/s²
0-3 km storm-relative helicity
421 m²/s²
Significant tornado parameter
0.9
Supercell composite
13.7

Open this sounding in Storm Lab

The text

As transmitted.

249 
WFUS53 KIWX 210531
TORIWX
INC091-149-210600-
/O.NEW.KIWX.TO.W.0007.210621T0531Z-210621T0600Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Northern Indiana
1231 AM CDT Mon Jun 21 2021

The National Weather Service in Northern Indiana has issued a

* Tornado Warning for...
  Northeastern Starke County in northwestern Indiana...
  Central La Porte County in northwestern Indiana...

* Until 100 AM CDT.
    
* At 1231 AM CDT, a severe thunderstorm capable of producing a
  tornado was located over Wanatah, or near Westville, moving east at
  45 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Kingsford Heights around 145 AM EDT.
  Hamlet around 150 AM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If in a mobile home, a
vehicle or outdoors, move to the closest substantial shelter and
protect yourself from flying debris.

&&

LAT...LON 4152 8693 4153 8654 4137 8656 4141 8693
TIME...MOT...LOC 0531Z 270DEG 38KT 4146 8687 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

MARSILI
2 follow-up statements
547 
WWUS53 KIWX 210544
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
1244 AM CDT Mon Jun 21 2021

INC091-149-210600-
/O.CON.KIWX.TO.W.0007.000000T0000Z-210621T0600Z/
Starke IN-La Porte IN-
1244 AM CDT Mon Jun 21 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 AM CDT FOR
NORTHEASTERN STARKE AND CENTRAL LA PORTE COUNTIES...
    
At 1243 AM CDT, a severe thunderstorm capable of producing a tornado
was located over Kingsford Heights, or 10 miles south of La Porte,
moving east at 45 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

* This dangerous storm will be near...
  Hamlet around 150 AM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 4152 8676 4153 8654 4137 8656 4139 8677
TIME...MOT...LOC 0543Z 270DEG 38KT 4146 8669 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

MARSILI
031 
WWUS53 KIWX 210554
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
1254 AM CDT Mon Jun 21 2021

INC091-149-210603-
/O.EXP.KIWX.TO.W.0007.000000T0000Z-210621T0600Z/
Starke IN-La Porte IN-
1254 AM CDT Mon Jun 21 2021

...THE TORNADO WARNING FOR NORTHEASTERN STARKE AND CENTRAL LA PORTE
COUNTIES WILL EXPIRE AT 100 AM CDT...
    
The radar indication of rotation in the storms which prompted the 
tornado warning has weakened. Therefore, the tornado warning will be 
allowed to expire at 100 AM CDT.  However, strong to severe winds 
remain likely and a Severe Thunderstorm Warning remains in effect 
for the area. 

A Severe Thunderstorm Watch remains in effect until 500 AM CDT for
northwestern Indiana.

LAT...LON 4152 8676 4153 8654 4137 8656 4139 8677
TIME...MOT...LOC 0553Z 270DEG 38KT 4146 8658 

$$

MARSILI

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 10:20 PM CDTSpecial Weather StatementIWXLaGrange25 min
Jun 20, 10:39 PM CDTSevere Thunderstorm WarningIWXDeKalb, LaGrange, Noble, Steuben22 min
Jun 20, 11:02 PM CDTSpecial Weather StatementIWXLaGrange28 min
Jun 20, 11:18 PM CDTSpecial Marine WarningIWX117 min
Jun 20, 11:47 PM CDTSevere Thunderstorm WarningIWXLaPorte, Saint Joseph43 min
Jun 21, 12:21 AM CDTTornado WarningIWXLaPorte24 min
Jun 21, 12:30 AM CDTSevere Thunderstorm WarningIWXElkhart, Fulton, LaPorte, Marshall, Pulaski, Saint Joseph and 1 more45 min
Jun 21, 1:13 AM CDTSpecial Weather StatementIWXElkhart, Fulton, Kosciusko, LaGrange, Marshall, Noble47 min
Jun 21, 1:26 AM CDTSevere Thunderstorm WarningIWXElkhart, Kosciusko, LaGrange, Noble21 min
Jun 21, 1:49 AM CDTSpecial Weather StatementIWXDeKalb, Kosciusko, Noble, Steuben, Wabash, Whitley26 min
Jun 21, 2:25 AM CDTSpecial Weather StatementIWXAllen, DeKalb, Huntington, Miami, Wabash, Wells and 1 more35 min
Jun 21, 3:11 AM CDTSpecial Weather StatementIWXAdams, Blackford, Huntington, Wells34 min
Jun 21, 3:37 AM CDTSpecial Weather StatementIWXJay38 min

Nearby

Tornado Warnings in Indiana, 2021Every tornado warning in 2021Tornadoes 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.