Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 46, NWS Northern Indiana

June 26, 20214 counties in Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Jun 26, 2021, 6:20 PM CDT for 4 counties in Indiana. It was in force for 40 min. 14 reports 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 26, 2021, 6:20 PM CDT (23:20 UTC)
Expired
Jun 26, 2021, 7:00 PM CDT
In force
40 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
70.0 mph

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

The radar

The Northern Indiana radar (KIWX), 65 km from the middle of the area, began a volume at 23:20 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

TimeReportWhereRemark
Jun 26, 6:33 PM CDTTSTM WND DMG1 Se Walkerton, INREPORTS OF TREES DOWN ACROSS MUCH OF MARSHALL COUNTY, WITH A LARGE PORTION FROM THE NORTHERN END OF THE COUNTY FROM NEAR TEEGARDEN TO LA PAZ AND BREMEN ALONG US 6.
Jun 26, 6:33 PM CDTTSTM WND DMG4 E North Liberty, INREPORTS OF NUMEROUS TREES DOWN AT POTATO CREEK STATE PARK.
Jun 26, 6:35 PM CDTTSTM WND DMG2 Sse Plymouth, INMPING REPORT: LIMBS DOWNED.
Jun 26, 6:35 PM CDTTSTM WND DMGLa Paz, INREPORTS OF TREES DOWN ACROSS MUCH OF MARSHALL COUNTY, WITH A LARGE PORTION FROM THE NORTHERN END OF THE COUNTY ALONG US 6. THERE WERE A COUPLE OF TREES THAT WENT DOWN AND HIT POWER LINES AND CAUSED STRUCTURAL FIRES AT A COUPLE RESIDENCES IN LA PAZ. FIRES WERE
Jun 26, 6:35 PM CDTTSTM WND GST 493 Ssw La Porte, INAWOS STATION KPPO LA PORTE.
Jun 26, 6:45 PM CDTTSTM WND DMG3 N Chain-O-Lakes, INSEVERAL REPORTS OF TREE DAMAGE, POWER LINES DOWNED NEAR THE ELBEL PARK GOLF COURSE AND ALONG AUTEN ROAD. CALLS CAME IN BETWEEN 7:45-8:10 PM EDT.
Jun 26, 6:46 PM CDTTSTM WND GST 41Plymouth, INMESONET STATION DW7253 PLYMOUTH.
Jun 26, 6:48 PM CDTTSTM WND DMGBremen, INREPORTS OF TREES DOWN ACROSS MUCH OF MARSHALL COUNTY, WITH A LARGE PORTION FROM THE NORTHERN END OF THE COUNTY FROM NEAR TEEGARDEN TO LA PAZ AND BREMEN ALONG US 6.
Jun 26, 6:50 PM CDTTSTM WND DMG2 E South Bend, INNUMEROUS REPORTS OF TREES AND POWERLINES DOWNED ACROSS THE COUNTY, ESPECIALLY IN THE NORTHEAST PORTIONS NEAR SOUTH BEND/MISHAWAKA/OSCEOLA. DISPATCHER MENTIONED THERE WERE A LOT OF CALLS FROM THE AREA NEAR THE INTERSECTION OF JEFFERSON/GREENLAWN AVE.
Jun 26, 6:50 PM CDTTSTM WND DMG2 Wnw Mishawaka, INDISPATCH REPORTED A TREE FELL ON A HOUSE. NO DETAILS ON DAMAGE OR TREE HEALTH/SIZE, HOWEVER THERE WERE NO INJURIES/FATALITIES REPORTED.
Jun 26, 6:50 PM CDTTSTM WND DMG2 Wnw Mishawaka, INDISPATCH REPORTED A TREE FELL ONTO A HOUSE AND POWER LINES ALONG WOODCLIFF DRIVE. NO DETAILS ON THE DAMAGE TO HOUSE OR THE TREE SIZE/HEALTH HOWEVER THERE WAS A SMALL GAS LEAK THAT WAS QUICKLY CONTAINED WITHOUT ANY NEED FOR EVACUATIONS. NO INJURIES/FATALITIES R
Jun 26, 6:50 PM CDTTSTM WND GST 493 Wnw South Bend, INASOS STATION KSBN SOUTH BEND INTERNATIONAL AP.
Jun 26, 6:51 PM CDTTSTM WND DMG2 Nw Mishawaka, INPICTURE SHARED OF A FEW LARGE, HEALTH TREE LIMBS DOWN ON WHITEHALL DR.
Jun 26, 6:57 PM CDTTSTM WND DMG2 E South Bend, INTREE DAMAGE AT THE MORRIS PARK COUNTRY CLUB. LIMBS OF 6 TO 12 INCHES IN DIAMETER SNAPPED OFF.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 26, 12:05 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.3 hours before the alert went out and 235 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 12:00Z on 2021-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 683 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 12:00Z on 2021-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 263 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
683 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
684 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
263 m²/s²
0-3 km storm-relative helicity
229 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.1

Open this sounding in Storm Lab

The text

As transmitted.

560 
WUUS53 KIWX 262320
SVRIWX
INC091-099-141-149-270000-
/O.NEW.KIWX.SV.W.0046.210626T2320Z-210627T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
720 PM EDT Sat Jun 26 2021

The National Weather Service in Northern Indiana has issued a

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

* Until 800 PM EDT/700 PM CDT/.

* At 720 PM EDT/620 PM CDT/, severe thunderstorms were located along
  a line extending from near Three Oaks to Kingsford Heights to near
  Hamlet to 6 miles south of Knox, moving northeast at 60 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  South Bend, Mishawaka, Michigan City, La Porte, Plymouth, Bremen,
  Knox, Georgetown, Gulivoire Park, Granger, Walkerton, North
  Liberty, New Carlisle, Bourbon, Argos, Kingsford Heights, Culver,
  Hamlet, Lakeville and Roseland.

This includes the following highways...
 Interstate 80 in Indiana between mile markers 44 and 61, and between
mile markers 69 and 80.
 Interstate 94 in Indiana between mile markers 39 and 41.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM EDT/700 PM CDT/ for
north central and northwestern Indiana.

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4176 8622 4160 8606 4123 8606 4118 8672
      4129 8669 4144 8681 4172 8683
TIME...MOT...LOC 2320Z 241DEG 52KT 4178 8665 4149 8669 4135 8657 4119
8662

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...70MPH
 
$$

MCS
1 follow-up statement
989 
WWUS53 KIWX 262342 RRA
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
742 PM EDT Sat Jun 26 2021

INC091-149-262352-
/O.CAN.KIWX.SV.W.0046.000000T0000Z-210627T0000Z/
Starke IN-La Porte IN-
742 PM EDT Sat Jun 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR STARKE AND CENTRAL LA PORTE
COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1000 PM EDT for north central
and northwestern Indiana.

LAT...LON 4176 8622 4160 8606 4123 8606 4120 8647
      4151 8647 4165 8649 4165 8650 4174 8652
TIME...MOT...LOC 2342Z 263DEG 48KT 4172 8650 4152 8627 4138 8628 4122
8634

$$

INC099-141-270000-
/O.CON.KIWX.SV.W.0046.000000T0000Z-210627T0000Z/
St. Joseph IN-Marshall IN-
742 PM EDT Sat Jun 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR ST. JOSEPH AND MARSHALL COUNTIES...

At 742 PM EDT, severe thunderstorms were located along a line
extending from New Carlisle to Lakeville to near Plymouth to near
Culver, moving east at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
South Bend, Mishawaka, Plymouth, Bremen, Georgetown, Gulivoire Park,
Granger, Walkerton, North Liberty, New Carlisle, Bourbon, Argos,
Culver, Lakeville, Roseland, Koontz Lake, La Paz, Indian Village,
Teegarden and Chain-o-lakes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM EDT for north central
and northwestern Indiana.

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4176 8622 4160 8606 4123 8606 4120 8647
      4151 8647 4165 8649 4165 8650 4174 8652
TIME...MOT...LOC 2342Z 263DEG 48KT 4172 8650 4152 8627 4138 8628 4122
8634

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

MCS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 8:17 PM CDTTornado WarningIWXCass28 min
Jun 25, 8:24 PM CDTTornado WarningIWXDeKalb14 min
Jun 25, 8:43 PM CDTTornado WarningIWXCass9 min
Jun 25, 9:37 PM CDTTornado WarningIWXFulton, Pulaski38 min
Jun 25, 9:58 PM CDTAreal Flood AdvisoryIWXFulton, Kosciusko, Pulaski3 hr
Jun 25, 10:52 PM CDTAreal Flood AdvisoryIWXFulton, Kosciusko, Marshall, Starke3 hr
Jun 25, 10:58 PM CDTSpecial Weather StatementIWXKosciusko32 min
Jun 26, 12:24 AM CDTAreal Flood AdvisoryIWXElkhart, Kosciusko, LaPorte, Marshall, Saint Joseph, Starke3 hr
Jun 26, 12:28 AM CDTSpecial Weather StatementIWXElkhart32 min
Jun 26, 12:59 AM CDTSpecial Weather StatementIWXElkhart31 min
Jun 26, 9:35 AM CDTRiver Flood WarningIWXElkhart, Saint Joseph70 hr
Jun 26, 9:35 AM CDTRiver Flood WarningIWXLaPorte, Saint Joseph, Starke5 days
Jun 26, 12:36 PM CDTSpecial Marine WarningIWX114 min
Jun 26, 2:26 PM CDTSpecial Marine WarningIWX34 min
Jun 26, 2:58 PM CDTSevere Thunderstorm WarningIWXLaPorte, Starke47 min
Jun 26, 3:09 PM CDTTornado WarningIWXSaint Joseph36 min
Jun 26, 3:38 PM CDTSevere Thunderstorm WarningIWXLaPorte, Saint Joseph24 min
Jun 26, 5:16 PM CDTSpecial Marine WarningIWX95 min
Jun 26, 5:44 PM CDTSevere Thunderstorm WarningIWXLaPorte, Pulaski, Starke61 min
Jun 26, 6:16 PM CDTSevere Thunderstorm WarningIWXLaPorte, Saint Joseph44 min
Jun 26, 6:31 PM CDTTornado WarningIWXLaPorte, Saint Joseph14 min
Jun 26, 6:49 PM CDTSevere Thunderstorm WarningIWXPulaski, Starke, White41 min
Jun 26, 6:53 PM CDTSevere Thunderstorm WarningIWXElkhart, Saint Joseph52 min
Jun 26, 6:59 PM CDTSpecial Weather StatementIWXElkhart31 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.