Alert archive / Indiana / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 80, NWS Northern Indiana
NWS Northern Indiana issued this severe thunderstorm warning at Aug 10, 2021, 10:42 PM EDT for Cass County, Saint Joseph County, Michigan; 4 counties in Indiana. It was in force for 48 min. 3 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, 10:42 PM EDT (02:42 UTC)
- Expired
- Aug 10, 2021, 11:30 PM EDT
- In force
- 48 min
- Issued by
- NWS Northern Indiana
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Elkhart County, IN, LaGrange County, IN, Noble County, IN, Saint Joseph County, IN, Cass County, MI, Saint Joseph County, MI
The radar
The Northern Indiana radar (KIWX), 42 km from the middle of the area, began a volume at 02:43 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, 10:50 PM EDT | TSTM WND DMG | 2 S Elkhart, IN | TREE LIMB DOWN. |
| Aug 10, 10:59 PM EDT | TSTM WND DMG | Fishers Lake, MI | REPORT FROM MPING: 1-INCH TREE LIMBS BROKEN;. |
| Aug 10, 11:05 PM EDT | TSTM WND DMG | 3 E Dunlap, IN | TREE LIMB DOWN AND HANGING ON TELEPHONE WIRES. TIME ESTIMATED BY RADAR. |
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
Detroit, MI (KDTX), launched 00:00Z, 2.7 hours before the alert went out and 216 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.
- Mixed-layer CAPE
- 2462 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 962 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 207 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 3.7
The text
As transmitted.
931
WUUS53 KIWX 110242
SVRIWX
INC039-087-113-141-MIC027-149-110330-
/O.NEW.KIWX.SV.W.0080.210811T0242Z-210811T0330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
1042 PM EDT Tue Aug 10 2021
The National Weather Service in Northern Indiana has issued a
* Severe Thunderstorm Warning for...
Elkhart County in north central Indiana...
Northwestern Noble County in northeastern Indiana...
Southeastern St. Joseph County in north central Indiana...
Lagrange County in northeastern Indiana...
Eastern Cass County in southwestern Michigan...
St. Joseph County in southwestern Michigan...
* Until 1130 PM EDT.
* At 1041 PM EDT, severe thunderstorms were located along a line
extending from near Cassopolis to near South Bend to Koontz Lake,
moving east at 70 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Elkhart, Goshen, Sturgis, Three Rivers, Lagrange, Dunlap, Simonton
Lake, Middlebury, Osceola, Constantine, Wakarusa, Bristol, White
Pigeon, Centreville, Marcellus, Colon, Topeka, Millersburg, New
Paris and Benton.
This includes Interstate 80 in Indiana between mile markers 90 and
127.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4207 8529 4176 8529 4152 8526 4146 8606
4148 8606 4148 8624 4174 8601 4207 8581
TIME...MOT...LOC 0241Z 247DEG 62KT 4192 8609 4169 8622 4143 8648
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
PBM2 follow-up statements
167
WUUS53 KIWX 110245 CCA
SVRIWX
INC039-087-113-141-MIC027-149-110330-
/O.COR.KIWX.SV.W.0080.210811T0242Z-210811T0330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
1045 PM EDT Tue Aug 10 2021
The National Weather Service in Northern Indiana has issued a
* Severe Thunderstorm Warning for...
Elkhart County in north central Indiana...
Northwestern Noble County in northeastern Indiana...
Southeastern St. Joseph County in north central Indiana...
Lagrange County in northeastern Indiana...
Eastern Cass County in southwestern Michigan...
St. Joseph County in southwestern Michigan...
* Until 1130 PM EDT.
* At 1044 PM EDT, severe thunderstorms were located along a line
extending from near Marcellus to Elkhart to near Bremen, moving
northeast at 50 mph.
HAZARD...70 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Elkhart, Goshen, Sturgis, Three Rivers, Lagrange, Dunlap, Simonton
Lake, Middlebury, Osceola, Constantine, Wakarusa, Bristol, White
Pigeon, Centreville, Marcellus, Colon, Topeka, Millersburg, New
Paris and Benton.
This includes Interstate 80 in Indiana between mile markers 90 and
127.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4207 8529 4176 8529 4152 8526 4146 8606
4148 8606 4148 8624 4174 8601 4207 8581
TIME...MOT...LOC 0244Z 246DEG 45KT 4192 8609 4169 8622 4143 8648
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
PBM009
WWUS53 KIWX 110323
SVSIWX
Severe Weather Statement
National Weather Service Northern Indiana
1123 PM EDT Tue Aug 10 2021
INC039-087-113-141-MIC027-149-110332-
/O.EXP.KIWX.SV.W.0080.000000T0000Z-210811T0330Z/
Elkhart IN-Noble IN-St. Joseph IN-Lagrange IN-Cass MI-St. Joseph MI-
1123 PM EDT Tue Aug 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR ELKHART...NORTHWESTERN
NOBLE...SOUTHEASTERN ST. JOSEPH...LAGRANGE...EASTERN CASS AND ST.
JOSEPH COUNTIES WILL EXPIRE AT 1130 PM EDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 300 AM EDT for
north central and northeastern Indiana...and southwestern Michigan.
LAT...LON 4207 8529 4176 8529 4152 8526 4146 8606
4148 8606 4148 8624 4174 8601 4207 8581
TIME...MOT...LOC 0322Z 246DEG 45KT 4211 8550 4188 8564 4162 8590
$$
PBMThe office that day
Everything else NWS Northern Indiana issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 9:49 PM EDT | Special Weather Statement | IWX | Berrien | 41 min |
| Aug 10, 9:56 PM EDT | Severe Thunderstorm Warning | IWX | Berrien | 49 min |
| Aug 10, 10:03 PM EDT | Severe Thunderstorm Warning | IWX | Berrien, Cass | 27 min |
| Aug 10, 10:18 PM EDT | Severe Thunderstorm Warning | IWX | Berrien, Cass | 57 min |
| Aug 10, 11:31 PM EDT | Special Weather Statement | IWX | Branch, Hillsdale | 29 min |
| Aug 11, 1:10 PM EDT | Special Weather Statement | IWX | Cass, Saint Joseph | 50 min |
| Aug 11, 1:39 PM EDT | Severe Thunderstorm Warning | IWX | Branch, Hillsdale, Saint Joseph | 36 min |
| Aug 11, 2:02 PM EDT | Severe Thunderstorm Warning | IWX | Branch, Hillsdale | 43 min |
| Aug 11, 2:44 PM EDT | Severe Thunderstorm Warning | IWX | Hillsdale | 46 min |
| Aug 10, 8:49 PM EDT | Special Marine Warning | IWX | 86 min | |
| Aug 10, 11:02 PM EDT | Severe Thunderstorm Warning | IWX | Fulton, Marshall, Pulaski, Starke | 43 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, 1:17 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, 1:48 PM EDT | Severe Thunderstorm Warning | IWX | Adams, Allen, DeKalb, Huntington, Jay, Wells | 27 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 |
Nearby
Severe Thunderstorm Warnings in Indiana, 2021Severe Thunderstorm Warnings in Michigan, 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.