Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 79, NWS Northern Indiana

August 10, 20215 counties in Indiana; Berrien County, Cass County, Michigan

NWS Northern Indiana issued this severe thunderstorm warning at Aug 10, 2021, 10:18 PM EDT for 5 counties in Indiana; Berrien County, Cass County, Michigan. It was in force for 57 min. 5 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: Aug 10, 2021, 10:18 PM EDT (02:18 UTC)
Expired: Aug 10, 2021, 11:15 PM EDT
In force: 57 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Elkhart County, IN, LaPorte County, IN, Marshall County, IN, Saint Joseph County, IN, Starke County, IN, Berrien County, MI, Cass County, MI

The radar

The Northern Indiana radar (KIWX), 65 km from the middle of the area, began a volume at 02:17 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

Time	Report	Where	Remark
Aug 10, 10:20 PM EDT	TSTM WND GST 52	2 S Niles, MI
Aug 10, 10:25 PM EDT	TSTM WND GST 55	3 Wnw South Bend, IN	ASOS STATION KSBN SOUTH BEND INTERNATIONAL AP.
Aug 10, 10:27 PM EDT	TSTM WND GST 59	South Bend, IN
Aug 10, 10:35 PM EDT	TSTM WND DMG	1 Wsw Mishawaka, IN	TREES DOWN AND ACTIVE POWER LINE. TIME ESTIMATED BY RADAR.
Aug 10, 10:50 PM EDT	TSTM WND DMG	2 S Elkhart, IN	TREE LIMB DOWN.

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.

Issued	Product	Office	Lasted
Aug 10, 8:38 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.3 hours before the alert went out and 256 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2608 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 1127 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 167 m²/s²
0-3 km storm-relative helicity: 194 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

360 
WUUS53 KIWX 110218
SVRIWX
INC039-091-099-141-149-MIC021-027-110315-
/O.NEW.KIWX.SV.W.0079.210811T0218Z-210811T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
1018 PM EDT Tue Aug 10 2021

The National Weather Service in Northern Indiana has issued a

* Severe Thunderstorm Warning for...
  Western Elkhart County in north central Indiana...
  St. Joseph County in north central Indiana...
  Northern Starke County in northwestern Indiana...
  Northern Marshall County in north central Indiana...
  La Porte County in northwestern Indiana...
  Cass County in southwestern Michigan...
  Southeastern Berrien County in southwestern Michigan...

* Until 1115 PM EDT/1015 PM CDT/.

* At 1018 PM EDT/918 PM CDT/, a severe thunderstorm was located near
  Kingsford Heights, or 9 miles southeast of Westville, moving
  northeast at 35 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...
  South Bend, Elkhart, Mishawaka, Goshen, La Porte, Niles, Dowagiac,
  Westville, Bremen, Knox, Georgetown, Gulivoire Park, Granger,
  Dunlap, Simonton Lake, Osceola, Walkerton, North Liberty,
  Cassopolis and Wakarusa.

This includes Interstate 80 in Indiana between mile markers 70 and
97.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4153 8693 4169 8643 4207 8604 4207 8576
      4201 8576 4149 8593 4121 8693
TIME...MOT...LOC 0218Z 244DEG 31KT 4145 8676 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

PBM

1 follow-up statement

304 
WWUS53 KIWX 110316
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
1116 PM EDT Tue Aug 10 2021

INC039-091-099-141-149-MIC021-027-110326-
/O.EXP.KIWX.SV.W.0079.000000T0000Z-210811T0315Z/
Elkhart IN-St. Joseph IN-Starke IN-Marshall IN-La Porte IN-Cass MI-
Berrien MI-
1116 PM EDT Tue Aug 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN ELKHART...ST.
JOSEPH...NORTHERN STARKE...NORTHERN MARSHALL...LA PORTE...CASS AND
SOUTHEASTERN BERRIEN COUNTIES HAS EXPIRED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been allowed to expire.

A Severe Thunderstorm Watch remains in effect until 300 AM EDT/200 AM
CDT/ for north central and northwestern Indiana...and southwestern
Michigan.

LAT...LON 4153 8693 4169 8643 4207 8604 4207 8576
      4201 8576 4149 8593 4121 8693
TIME...MOT...LOC 0316Z 244DEG 31KT 4167 8617 

$$

PBM

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 8:49 PM EDT	Special Marine Warning	IWX		86 min
Aug 10, 9:49 PM EDT	Special Weather Statement	IWX	LaPorte	41 min
Aug 10, 9:56 PM EDT	Severe Thunderstorm Warning	IWX	LaPorte, Saint Joseph	49 min
Aug 10, 10:42 PM EDT	Severe Thunderstorm Warning	IWX	Elkhart, LaGrange, Noble, Saint Joseph	48 min
Aug 10, 11:02 PM EDT	Severe Thunderstorm Warning	IWX	Fulton, Marshall, Pulaski, Starke	43 min
Aug 10, 11:31 PM EDT	Special Weather Statement	IWX	Steuben	29 min
Aug 10, 11:41 PM EDT	Severe Thunderstorm Warning	IWX	Fulton, Kosciusko, Marshall, Miami, Pulaski	34 min
Aug 11, 12:05 AM EDT	Severe Thunderstorm Warning	IWX	Fulton, Huntington, Kosciusko, Miami, Wabash, Whitley	40 min
Aug 11, 12:29 AM EDT	Special Weather Statement	IWX	Huntington	31 min
Aug 11, 12:38 AM EDT	Special Weather Statement	IWX	Allen	22 min
Aug 11, 12:56 AM EDT	Special Weather Statement	IWX	Adams, Allen, Wells	49 min
Aug 11, 3:57 AM EDT	Special Weather Statement	IWX	Cass, White	33 min
Aug 11, 4:46 AM EDT	Special Weather Statement	IWX	Cass, Fulton, Miami	44 min
Aug 11, 4:59 AM EDT	Special Weather Statement	IWX	Kosciusko	46 min
Aug 11, 5:21 AM EDT	Special Weather Statement	IWX	LaPorte	39 min
Aug 11, 5:49 AM EDT	Special Weather Statement	IWX	Noble	41 min
Aug 11, 5:52 AM EDT	Special Weather Statement	IWX	LaPorte	38 min
Aug 11, 5:54 AM EDT	Special Weather Statement	IWX	Whitley	51 min
Aug 11, 11:22 AM EDT	Special Weather Statement	IWX	Starke	38 min
Aug 11, 11:36 AM EDT	Special Marine Warning	IWX		54 min
Aug 11, 12:00 PM EDT	Special Weather Statement	IWX	Kosciusko, LaPorte, Marshall, Saint Joseph, Starke	30 min
Aug 11, 12:16 PM EDT	Severe Thunderstorm Warning	IWX	Kosciusko, Marshall	29 min
Aug 11, 12:29 PM EDT	Special Weather Statement	IWX	Elkhart, Fulton, Kosciusko, LaPorte, Marshall, Pulaski and 2 more	46 min
Aug 11, 12:34 PM EDT	Special Marine Warning	IWX		56 min
Aug 11, 12:43 PM EDT	Areal Flood Advisory	IWX	Kosciusko, LaPorte, Marshall, Pulaski, Saint Joseph, Starke	3 hr
Aug 11, 12:47 PM EDT	Severe Thunderstorm Warning	IWX	Elkhart, Fulton, Kosciusko, Marshall, Saint Joseph	43 min
Aug 11, 12:54 PM EDT	Severe Thunderstorm Warning	IWX	Cass, Fulton, Kosciusko, Miami, Pulaski, Wabash	36 min
Aug 11, 1:10 PM EDT	Special Weather Statement	IWX	Elkhart, LaGrange	50 min
Aug 11, 1:17 PM EDT	Severe Thunderstorm Warning	IWX	Allen, DeKalb, Elkhart, Huntington, Kosciusko, Miami and 3 more	43 min
Aug 11, 1:29 PM EDT	Special Marine Warning	IWX		46 min
Aug 11, 1:39 PM EDT	Severe Thunderstorm Warning	IWX	LaGrange, Steuben	36 min
Aug 11, 1:48 PM EDT	Severe Thunderstorm Warning	IWX	Adams, Allen, DeKalb, Huntington, Jay, Wells	27 min
Aug 11, 2:02 PM EDT	Severe Thunderstorm Warning	IWX	DeKalb, Steuben	43 min
Aug 11, 2:05 PM EDT	Severe Thunderstorm Warning	IWX	Blackford, Grant, Huntington, Jay, Wells	55 min
Aug 11, 2:14 PM EDT	Severe Thunderstorm Warning	IWX	Adams, Allen, DeKalb, Huntington, Jay, Wells	46 min
Aug 11, 3:01 PM EDT	Severe Thunderstorm Warning	IWX	Jay	29 min
Aug 10, 10:03 PM EDT	Severe Thunderstorm Warning	IWX	Berrien, Cass	27 min
Aug 11, 2:44 PM EDT	Severe Thunderstorm Warning	IWX	Hillsdale	46 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2021 Severe Thunderstorm Warnings in Michigan, 2021 Every 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.