Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 49, NWS Northern Indiana

June 28, 20214 counties in Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Jun 28, 2021, 5:46 PM EDT for 4 counties in Indiana. It was in force for 23 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 28, 2021, 5:46 PM EDT (21:46 UTC)
Expired
Jun 28, 2021, 6:09 PM EDT
In force
23 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Elkhart County, IN, Kosciusko County, IN, Marshall County, IN, Saint Joseph County, IN

The radar

The Northern Indiana radar (KIWX), 29 km from the middle of the area, began a volume at 21:45 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

Detroit, MI (KDTX), launched 12:00Z, 9.8 hours before the alert went out and 258 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, Detroit, MI at 12:00Z on 2021-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, Detroit, MI at 12:00Z on 2021-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -41 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
817 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
-41 m²/s²
0-3 km storm-relative helicity
-16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

932 
WUUS53 KIWX 282146
SVRIWX
INC039-085-099-141-282230-
/O.NEW.KIWX.SV.W.0049.210628T2146Z-210628T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
546 PM EDT Mon Jun 28 2021

The National Weather Service in Northern Indiana has issued a

* Severe Thunderstorm Warning for...
  Southwestern Elkhart County in north central Indiana...
  East central St. Joseph County in north central Indiana...
  Northwestern Kosciusko County in north central Indiana...
  Northeastern Marshall County in north central Indiana...

* Until 630 PM EDT.

* At 546 PM EDT, a severe thunderstorm was located near Nappanee,
  moving north at 20 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* This severe thunderstorm will be near...
  Nappanee around 600 PM EDT.
  Wakarusa around 615 PM EDT.

Other locations impacted by this severe thunderstorm include Locke,
Southwest and Foraker.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4133 8604 4136 8614 4161 8609 4155 8584
TIME...MOT...LOC 2146Z 201DEG 18KT 4141 8606 

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

JBALL
2 follow-up statements
941 
WWUS53 KIWX 282158
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
558 PM EDT Mon Jun 28 2021

INC085-099-141-282208-
/O.CAN.KIWX.SV.W.0049.000000T0000Z-210628T2230Z/
St. Joseph IN-Kosciusko IN-Marshall IN-
558 PM EDT Mon Jun 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL ST. JOSEPH...
NORTHWESTERN KOSCIUSKO AND NORTHEASTERN MARSHALL COUNTIES IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4155 8584 4144 8594 4144 8606 4160 8606
TIME...MOT...LOC 2158Z 213DEG 24KT 4148 8599 

$$

INC039-282230-
/O.CON.KIWX.SV.W.0049.000000T0000Z-210628T2230Z/
Elkhart IN-
558 PM EDT Mon Jun 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR SOUTHWESTERN ELKHART COUNTY...

At 558 PM EDT, a severe thunderstorm was located over Nappanee,
moving northeast at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

This severe thunderstorm will remain over mainly rural areas of
southwestern Elkhart County, including the following locations...
Locke, Southwest and Foraker.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4155 8584 4144 8594 4144 8606 4160 8606
TIME...MOT...LOC 2158Z 213DEG 24KT 4148 8599 

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

JBALL
657 
WWUS53 KIWX 282209
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
609 PM EDT Mon Jun 28 2021

INC039-282219-
/O.CAN.KIWX.SV.W.0049.000000T0000Z-210628T2230Z/
Elkhart IN-
609 PM EDT Mon Jun 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN ELKHART COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

LAT...LON 4155 8584 4144 8594 4144 8606 4160 8606
TIME...MOT...LOC 2208Z 201DEG 18KT 4154 8596 

$$

JBALL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 8:22 PM EDTSpecial Weather StatementIWXCass, Miami38 min
Jun 27, 9:33 PM EDTRiver Flood WarningIWXMarshall, Saint Joseph, Starke71 hr
Jun 27, 9:41 PM EDTSpecial Weather StatementIWXWabash34 min
Jun 27, 10:19 PM EDTSpecial Weather StatementIWXGrant41 min
Jun 28, 4:31 PM EDTSpecial Weather StatementIWXLaPorte44 min
Jun 28, 5:37 PM EDTSpecial Weather StatementIWXElkhart23 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.