Alert archive / Indiana / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 115, NWS Northern Indiana
NWS Northern Indiana issued this severe thunderstorm warning at Oct 11, 2021, 9:52 PM EDT for Cass County, Miami County, Indiana. It was in force for 38 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
- Oct 11, 2021, 9:52 PM EDT (01:52 UTC)
- Expired
- Oct 11, 2021, 10:30 PM EDT
- In force
- 38 min
- Issued by
- NWS Northern Indiana
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Cass County, IN, Miami County, IN
The radar
The Northern Indiana radar (KIWX), 79 km from the middle of the area, began a volume at 01:56 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
Lincoln, IL (KILX), launched 00:00Z, 1.9 hours before the alert went out and 214 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
- 10 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 743 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -150 m²/s²
- 0-3 km storm-relative helicity
- -158 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
The text
As transmitted.
804
WUUS53 KIWX 120152
SVRIWX
INC017-103-120230-
/O.NEW.KIWX.SV.W.0115.211012T0152Z-211012T0230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
952 PM EDT Mon Oct 11 2021
The National Weather Service in Northern Indiana has issued a
* Severe Thunderstorm Warning for...
Southeastern Cass County in north central Indiana...
Miami County in north central Indiana...
* Until 1030 PM EDT.
* At 950 PM EDT, a severe thunderstorm was located 11 miles west of
Kokomo, moving northeast at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Peru, Grissom Afb, Walton, Bunker Hill, Mexico, Lincoln, Wells,
Galveston, Erie, Denver, Macy, Onward, Chili, Deacon, New Waverly,
Deedsville, Hoover, Gilead, Nead and Anoka.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4056 8637 4060 8638 4091 8617 4100 8617
4100 8595 4079 8594 4056 8617
TIME...MOT...LOC 0150Z 204DEG 48KT 4051 8634
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
JAL1 follow-up statement
183
WWUS53 KIWX 120221
SVSIWX
Severe Weather Statement
National Weather Service Northern Indiana
1021 PM EDT Mon Oct 11 2021
INC017-120231-
/O.CAN.KIWX.SV.W.0115.000000T0000Z-211012T0230Z/
Cass IN-
1021 PM EDT Mon Oct 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CASS COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4072 8616 4100 8617 4100 8595 4079 8594
TIME...MOT...LOC 0221Z 203DEG 46KT 4085 8615
$$
INC103-120230-
/O.CON.KIWX.SV.W.0115.000000T0000Z-211012T0230Z/
Miami IN-
1021 PM EDT Mon Oct 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT
FOR NORTHWESTERN MIAMI COUNTY...
At 1021 PM EDT, a severe thunderstorm was located near Mexico, or 7
miles northwest of Peru, moving northeast at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Peru, Mexico, Erie, Denver, Macy, Chili, Deedsville and Gilead.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. This storm may cause serious injury and significant
property damage.
&&
LAT...LON 4072 8616 4100 8617 4100 8595 4079 8594
TIME...MOT...LOC 0221Z 203DEG 46KT 4085 8615
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
JALThe office that day
Everything else NWS Northern Indiana issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 11, 9:30 PM EDT | Special Weather Statement | IWX | Cass | 45 min |
| Oct 11, 9:44 PM EDT | Severe Thunderstorm Warning | IWX | Cass, Fulton | 46 min |
| Oct 11, 10:04 PM EDT | Severe Thunderstorm Warning | IWX | Marshall | 41 min |
| Oct 11, 11:23 PM EDT | Special Weather Statement | IWX | Elkhart, Noble | 37 min |
| Oct 11, 11:53 PM EDT | Special Weather Statement | IWX | Huntington, Whitley | 37 min |
| Oct 12, 12:59 AM EDT | Special Weather Statement | IWX | Steuben | 46 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.