Alert archive / Indiana / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 122, NWS Northern Indiana
NWS Northern Indiana issued this severe thunderstorm warning at Dec 10, 2021, 10:47 PM CST for LaPorte County, Saint Joseph County, Indiana; Berrien County, Cass County, Michigan. It was in force for 28 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
- Dec 10, 2021, 10:47 PM CST (04:47 UTC)
- Expired
- Dec 10, 2021, 11:15 PM CST
- In force
- 28 min
- Issued by
- NWS Northern Indiana
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties LaPorte County, IN, Saint Joseph County, IN, Berrien County, MI, Cass County, MI
The radar
The Northern Indiana radar (KIWX), 58 km from the middle of the area, began a volume at 04:51 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, 4.8 hours before the alert went out and 254 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
- 119 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 662 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- 341 m²/s²
- 0-3 km storm-relative helicity
- 357 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
279
WUUS53 KIWX 110447
SVRIWX
INC091-141-MIC021-027-110515-
/O.NEW.KIWX.SV.W.0122.211211T0447Z-211211T0515Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
1147 PM EST Fri Dec 10 2021
The National Weather Service in Northern Indiana has issued a
* Severe Thunderstorm Warning for...
St. Joseph County in north central Indiana...
Northeastern La Porte County in northwestern Indiana...
Southwestern Cass County in southwestern Michigan...
Southeastern Berrien County in southwestern Michigan...
* Until 1215 AM EST/1115 PM CST/.
* At 1147 PM EST/1047 PM CST/, severe thunderstorms were located
along a line extending from 6 miles west of Buchanan to near
Hamlet, moving northeast at 60 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
South Bend, Mishawaka, Niles, Buchanan, Georgetown, Gulivoire Park,
Granger, Osceola, Walkerton, North Liberty, New Carlisle,
Edwardsburg, Lakeville, Roseland, Bertrand, Dayton, Galien, Indian
Village, Fish Lake and Chain-o-lakes.
This includes Interstate 80 in Indiana between mile markers 61 and
86.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4176 8605 4176 8606 4154 8607 4148 8635
4148 8647 4145 8647 4143 8655 4143 8660
4183 8653 4194 8603
TIME...MOT...LOC 0447Z 239DEG 51KT 4181 8649 4144 8657
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
FISHER2 follow-up statements
026
WWUS53 KIWX 110507
SVSIWX
Severe Weather Statement
National Weather Service Northern Indiana
1207 AM EST Sat Dec 11 2021
INC091-110517-
/O.CAN.KIWX.SV.W.0122.000000T0000Z-211211T0515Z/
La Porte IN-
1207 AM EST Sat Dec 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LA PORTE COUNTY
IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 4176 8605 4176 8606 4154 8607 4149 8633
4148 8646 4158 8646 4187 8627 4194 8603
TIME...MOT...LOC 0507Z 250DEG 45KT 4189 8617 4168 8623 4149 8639
$$
INC141-MIC021-027-110515-
/O.CON.KIWX.SV.W.0122.000000T0000Z-211211T0515Z/
St. Joseph IN-Cass MI-Berrien MI-
1207 AM EST Sat Dec 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM EST
FOR ST. JOSEPH...SOUTHWESTERN CASS AND SOUTHEASTERN BERRIEN
COUNTIES...
At 1207 AM EST, severe thunderstorms were located along a line
extending from near Niles to South Bend to near North Liberty, moving
east at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
South Bend, Mishawaka, Niles, Georgetown, Granger, Gulivoire Park,
Osceola, North Liberty, Edwardsburg, Lakeville, Roseland, Bertrand,
Indian Village, Dailey, Barron Lake, Crumstown, Woodland, Lydick and
Wyatt.
This includes Interstate 80 in Indiana between mile markers 71 and
86.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4176 8605 4176 8606 4154 8607 4149 8633
4148 8646 4158 8646 4187 8627 4194 8603
TIME...MOT...LOC 0507Z 250DEG 45KT 4189 8617 4168 8623 4149 8639
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
FISHER357
WWUS53 KIWX 110517
SVSIWX
Severe Weather Statement
National Weather Service Northern Indiana
1217 AM EST Sat Dec 11 2021
INC141-MIC021-027-110527-
/O.EXP.KIWX.SV.W.0122.000000T0000Z-211211T0515Z/
St. Joseph IN-Cass MI-Berrien MI-
1217 AM EST Sat Dec 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR ST. JOSEPH...SOUTHWESTERN CASS
AND SOUTHEASTERN BERRIEN COUNTIES HAS EXPIRED...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been allowed to expire. However gusty
winds and heavy rain are still possible with these thunderstorms.
LAT...LON 4176 8605 4176 8606 4154 8607 4149 8633
4148 8646 4158 8646 4187 8627 4194 8603
TIME...MOT...LOC 0517Z 239DEG 51KT 4196 8602 4175 8609 4156 8625
$$
FISHERThe office that day
Everything else NWS Northern Indiana issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 10, 9:58 PM CST | Severe Thunderstorm Warning | IWX | Pulaski, White | 32 min |
| Dec 10, 10:18 PM CST | Severe Thunderstorm Warning | IWX | LaPorte, Starke | 27 min |
| Dec 10, 10:22 PM CST | Severe Thunderstorm Warning | IWX | Fulton, Marshall, Pulaski, Starke | 38 min |
| Dec 10, 10:23 PM CST | Special Marine Warning | IWX | 37 min | |
| Dec 10, 10:44 PM CST | Severe Thunderstorm Warning | IWX | Fulton, Marshall, Pulaski, Starke | 31 min |
| Dec 10, 10:49 PM CST | Severe Thunderstorm Warning | IWX | Cass, Fulton, Pulaski, White | 26 min |
| Dec 10, 11:07 PM CST | Severe Thunderstorm Warning | IWX | Marshall | 23 min |
| Dec 10, 11:16 PM CST | Areal Flood Advisory | IWX | LaPorte, Marshall, Saint Joseph, Starke | 3 hr |
| Dec 10, 11:19 PM CST | Severe Thunderstorm Warning | IWX | Cass, Fulton, Grant, Miami, Pulaski, Wabash and 1 more | 56 min |
| Dec 10, 11:32 PM CST | Special Weather Statement | IWX | Kosciusko, Noble, Whitley | 28 min |
| Dec 10, 11:41 PM CST | Severe Thunderstorm Warning | IWX | Fulton, Kosciusko, Noble, Whitley | 34 min |
| Dec 11, 12:11 AM CST | Severe Thunderstorm Warning | IWX | Blackford, Grant, Huntington, Wabash, Wells | 49 min |
| Dec 11, 12:15 AM CST | Special Weather Statement | IWX | Allen, DeKalb, Huntington, Wabash, Whitley | 30 min |
| Dec 11, 12:33 AM CST | Severe Thunderstorm Warning | IWX | Adams, Blackford, Jay, Wells | 34 min |
| Dec 11, 1:43 AM CST | Special Weather Statement | IWX | Jay | 32 min |
| Dec 10, 11:20 PM CST | Special Weather Statement | IWX | Cass | 25 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.