Alert archive / Michigan / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 102, NWS Northern Indiana
NWS Northern Indiana issued this severe thunderstorm warning at Aug 24, 2021, 8:29 PM EDT for Berrien County, Cass County, Michigan; LaPorte County, Saint Joseph County, Indiana. It was in force for 46 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
- Aug 24, 2021, 8:29 PM EDT (00:29 UTC)
- Expired
- Aug 24, 2021, 9:15 PM EDT
- In force
- 46 min
- Issued by
- NWS Northern Indiana
- Area
- Storm-based polygon
- Hail
- 0.88 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), 85 km from the middle of the area, began a volume at 00:33 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
Detroit, MI (KDTX), launched 00:00Z, 0.5 hours before the alert went out and 255 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
- 3040 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 1099 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
661
WUUS53 KIWX 250029
SVRIWX
INC091-141-MIC021-027-250115-
/O.NEW.KIWX.SV.W.0102.210825T0029Z-210825T0115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
829 PM EDT Tue Aug 24 2021
The National Weather Service in Northern Indiana has issued a
* Severe Thunderstorm Warning for...
Northwestern St. Joseph County in north central Indiana...
Northeastern La Porte County in northwestern Indiana...
Northwestern Cass County in southwestern Michigan...
Berrien County in southwestern Michigan...
* Until 915 PM EDT/815 PM CDT/.
* At 828 PM EDT/728 PM CDT/, severe thunderstorms were located along
a line extending from near Benton Heights to near New Buffalo,
moving southeast at 35 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
South Bend, La Porte, Niles, Buchanan, Benton Heights, Fair Plain,
Bridgman, New Carlisle, Berrien Springs, Three Oaks, Coloma,
Shorewood-Tower Hill, Shorewood-Tower Hills-Harbert, Dayton, Sodus,
Baroda, Eau Claire, Galien, Glendora and New Troy.
This includes the following highways...
Interstate 196 between mile markers 0 and 2.
Interstate 80 in Indiana between mile markers 50 and 73.
Interstate 94 in Michigan near mile marker 2, between mile markers 6
and 18, and between mile markers 27 and 38.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4209 8622 4207 8622 4207 8619 4192 8619
4170 8634 4163 8671 4174 8676 4220 8634
TIME...MOT...LOC 0028Z 329DEG 32KT 4213 8635 4175 8668
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SKIP2 follow-up statements
314
WWUS53 KIWX 250048
SVSIWX
Severe Weather Statement
National Weather Service Northern Indiana
848 PM EDT Tue Aug 24 2021
INC091-141-MIC021-027-250115-
/O.CON.KIWX.SV.W.0102.000000T0000Z-210825T0115Z/
St. Joseph IN-La Porte IN-Cass MI-Berrien MI-
848 PM EDT Tue Aug 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM
EDT/815 PM CDT/ FOR NORTHWESTERN ST. JOSEPH...NORTHEASTERN LA
PORTE...NORTHWESTERN CASS AND SOUTHEASTERN BERRIEN COUNTIES...
At 847 PM EDT/747 PM CDT/, severe thunderstorms were located along a
line extending from 6 miles northeast of Berrien Springs to 6 miles
southwest of New Carlisle, moving southeast at 35 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
South Bend, La Porte, Niles, Buchanan, New Carlisle, Berrien Springs,
Three Oaks, Dayton, Sodus, Eau Claire, Galien, Byron, Hudson Lake,
Glendora, Sumnerville, Chain-o-lakes, Indian Lake, Rolling Prarie,
Spinks Corners and Lydick.
This includes Interstate 80 in Indiana between mile markers 52 and
73.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4209 8622 4207 8622 4207 8619 4192 8619
4170 8634 4163 8671 4172 8668 4212 8631
TIME...MOT...LOC 0047Z 329DEG 32KT 4202 8626 4164 8659
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SKIP607
WWUS53 KIWX 250111
SVSIWX
Severe Weather Statement
National Weather Service Northern Indiana
911 PM EDT Tue Aug 24 2021
INC091-141-MIC021-027-250120-
/O.EXP.KIWX.SV.W.0102.000000T0000Z-210825T0115Z/
St. Joseph IN-La Porte IN-Cass MI-Berrien MI-
911 PM EDT Tue Aug 24 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN ST. JOSEPH...
NORTHEASTERN LA PORTE...NORTHWESTERN CASS AND SOUTHEASTERN BERRIEN
COUNTIES WILL EXPIRE AT 915 PM EDT/815 PM CDT/...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.
LAT...LON 4209 8622 4207 8622 4207 8619 4192 8619
4170 8634 4163 8671 4172 8668 4212 8631
TIME...MOT...LOC 0110Z 329DEG 32KT 4188 8614 4150 8647
$$
SKIPThe office that day
Everything else NWS Northern Indiana issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 8:14 PM EDT | Areal Flood Advisory | IWX | Berrien, Cass | 3 hr |
| Aug 24, 8:30 PM EDT | Severe Thunderstorm Warning | IWX | Cass | 30 min |
| Aug 24, 9:02 PM EDT | Severe Thunderstorm Warning | IWX | Berrien, Cass, Saint Joseph | 43 min |
| Aug 24, 9:40 PM EDT | Special Weather Statement | IWX | Branch | 35 min |
| Aug 24, 8:33 PM EDT | Special Marine Warning | IWX | 57 min | |
| Aug 24, 9:23 PM EDT | Special Marine Warning | IWX | 67 min | |
| Aug 24, 9:57 PM EDT | Special Weather Statement | IWX | LaGrange | 33 min |
| Aug 24, 10:20 PM EDT | Special Weather Statement | IWX | LaGrange | 25 min |
| Aug 24, 10:24 PM EDT | Special Weather Statement | IWX | LaPorte, Starke | 66 min |
| Aug 25, 6:26 PM EDT | Special Weather Statement | IWX | White | 34 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2021Severe 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.