Alert archive / Indiana / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 100, NWS Northern Indiana
NWS Northern Indiana issued this severe thunderstorm warning at Aug 12, 2021, 7:02 AM EDT for Elkhart County, Kosciusko County, Noble County, Indiana. It was in force for 43 min. 2 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 12, 2021, 7:02 AM EDT (11:02 UTC)
- Expired
- Aug 12, 2021, 7:45 AM EDT
- In force
- 43 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, Noble County, IN
The radar
The Northern Indiana radar (KIWX), 1 km from the middle of the area, began a volume at 11:05 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 12, 7:22 AM EDT | TSTM WND GST 53 | 2 N North Webster, IN | |
| Aug 12, 7:30 AM EDT | TSTM WND DMG | 1 Ne Lake Wawasee, IN | A BOAT LIFT COVER DAMAGE AND TREE UPROOTED ON THE EASTERN BANK OF LAKE WAWASEE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 11.0 hours before the alert went out and 242 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
- 12 J/kg
- Mixed-layer CIN
- -458 J/kg
- Mixed-layer LCL
- 1474 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 243 m²/s²
- 0-3 km storm-relative helicity
- 373 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
986
WUUS53 KIWX 121102
SVRIWX
INC039-085-113-121145-
/O.NEW.KIWX.SV.W.0100.210812T1102Z-210812T1145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
702 AM EDT Thu Aug 12 2021
The National Weather Service in Northern Indiana has issued a
* Severe Thunderstorm Warning for...
Southeastern Elkhart County in north central Indiana...
Western Noble County in northeastern Indiana...
Northern Kosciusko County in north central Indiana...
* Until 745 AM EDT.
* At 702 AM EDT, severe thunderstorms were located along a line
extending from near Bourbon to near North Webster to near
Pierceton, moving northeast at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Severe thunderstorms will be near...
North Webster around 705 AM EDT.
Other locations in the path of these severe thunderstorms include
Milford, New Paris, Syracuse, Albion and Ligonier.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
These are potentially deadly storms. Seek shelter in an interior room
on the lowest floor of a well-built structure. Abandon vehicles in
search of a more substantial permanent structure. Stay away from
windows.
&&
LAT...LON 4149 8564 4149 8544 4131 8538 4128 8553
4130 8554 4130 8565 4127 8565 4123 8587
4126 8598 4133 8606 4135 8606 4150 8586
TIME...MOT...LOC 1102Z 240DEG 26KT 4136 8604 4135 8574 4125 8567
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
JBALL2 follow-up statements
617
WWUS53 KIWX 121118
SVSIWX
Severe Weather Statement
National Weather Service Northern Indiana
718 AM EDT Thu Aug 12 2021
INC039-085-113-121145-
/O.CON.KIWX.SV.W.0100.000000T0000Z-210812T1145Z/
Elkhart IN-Noble IN-Kosciusko IN-
718 AM EDT Thu Aug 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 AM EDT
FOR SOUTHEASTERN ELKHART...WESTERN NOBLE AND NORTHEASTERN KOSCIUSKO
COUNTIES...
At 718 AM EDT, severe thunderstorms were located along a line
extending from near Milford to near Ligonier to 6 miles northwest of
Tri-lakes, moving northeast at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Ligonier and Albion.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
These are potentially deadly storms. Seek shelter in an interior room
on the lowest floor of a well-built structure. Abandon vehicles in
search of a more substantial permanent structure. Stay away from
windows.
&&
LAT...LON 4149 8564 4149 8544 4131 8538 4130 8554
4130 8566 4129 8584 4131 8587 4137 8588
4145 8592 4150 8586
TIME...MOT...LOC 1118Z 240DEG 26KT 4142 8591 4141 8561 4131 8554
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
JBALL825
WWUS53 KIWX 121141
SVSIWX
Severe Weather Statement
National Weather Service Northern Indiana
741 AM EDT Thu Aug 12 2021
INC039-085-113-121151-
/O.EXP.KIWX.SV.W.0100.000000T0000Z-210812T1145Z/
Elkhart IN-Noble IN-Kosciusko IN-
741 AM EDT Thu Aug 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ELKHART...WESTERN
NOBLE AND NORTHEASTERN KOSCIUSKO COUNTIES WILL EXPIRE AT 745 AM
EDT...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire.
LAT...LON 4149 8564 4149 8544 4131 8538 4130 8554
4130 8566 4129 8584 4131 8587 4137 8588
4145 8592 4150 8586
TIME...MOT...LOC 1141Z 240DEG 26KT 4150 8573 4149 8543 4139 8536
$$
JBALLThe office that day
Everything else NWS Northern Indiana issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 3:17 AM EDT | Heat Advisory | IWX | Adams, Allen, Blackford, Cass, DeKalb, Elkhart and 15 more | 17 hr |
| Aug 12, 4:04 AM EDT | Special Weather Statement | IWX | LaPorte, Starke | 26 min |
| Aug 12, 4:15 AM EDT | Special Marine Warning | IWX | 30 min | |
| Aug 12, 4:28 AM EDT | Special Weather Statement | IWX | LaPorte, Marshall, Starke | 32 min |
| Aug 12, 5:15 AM EDT | Special Weather Statement | IWX | Elkhart, LaGrange | 45 min |
| Aug 12, 5:49 AM EDT | Severe Thunderstorm Warning | IWX | Fulton, Pulaski | 41 min |
| Aug 12, 6:12 AM EDT | Severe Thunderstorm Warning | IWX | Steuben | 33 min |
| Aug 12, 6:16 AM EDT | Special Weather Statement | IWX | Fulton, Marshall | 44 min |
| Aug 12, 6:21 AM EDT | Severe Thunderstorm Warning | IWX | Fulton, Kosciusko, Marshall | 39 min |
| Aug 12, 6:40 AM EDT | Special Weather Statement | IWX | Whitley | 35 min |
| Aug 12, 7:15 AM EDT | Special Weather Statement | IWX | Allen, DeKalb | 30 min |
| Aug 12, 7:31 AM EDT | Special Weather Statement | IWX | Noble | 44 min |
| Aug 12, 7:44 AM EDT | Special Weather Statement | IWX | DeKalb | 46 min |
| Aug 12, 7:52 AM EDT | Special Weather Statement | IWX | LaGrange | 38 min |
| Aug 12, 8:15 AM EDT | Special Weather Statement | IWX | Steuben | 30 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.