Alert archive / Michigan / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 63, NWS Northern Indiana
NWS Northern Indiana issued this severe thunderstorm warning at Jul 29, 2021, 4:09 AM EDT for Berrien County, Cass County, Michigan. It was in force for 36 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
- Jul 29, 2021, 4:09 AM EDT (08:09 UTC)
- Expired
- Jul 29, 2021, 4:45 AM EDT
- In force
- 36 min
- Issued by
- NWS Northern Indiana
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Berrien County, MI, Cass County, MI
The radar
The Northern Indiana radar (KIWX), 92 km from the middle of the area, began a volume at 08:11 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 29, 2:00 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 8.2 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
- 219 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 1416 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
967
WUUS53 KIWX 290809
SVRIWX
MIC021-027-290845-
/O.NEW.KIWX.SV.W.0063.210729T0809Z-210729T0845Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
409 AM EDT Thu Jul 29 2021
The National Weather Service in Northern Indiana has issued a
* Severe Thunderstorm Warning for...
Western Cass County in southwestern Michigan...
Berrien County in southwestern Michigan...
* Until 445 AM EDT.
* At 409 AM EDT, a severe thunderstorm was located near St. Joseph,
moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Niles, Benton Harbor, St. Joseph, Dowagiac, Buchanan, Fair Plain,
Benton Heights, Bridgman, New Buffalo, Berrien Springs, Watervliet,
Three Oaks, Coloma, Stevensville, Shorewood-Tower Hill, Paw Paw
Lake, Shorewood-Tower Hills-Harbert, Lake Michigan Beach, Bertrand
and Pokagon.
This includes the following highways...
Interstate 196 between mile markers 0 and 7.
Interstate 94 in Michigan between mile markers 3 and 42.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4207 8622 4207 8599 4176 8620 4176 8635
4179 8685 4192 8666 4212 8654 4212 8649
4224 8636 4224 8622
TIME...MOT...LOC 0809Z 290DEG 39KT 4210 8657
HAIL...<.75IN
WIND...60MPH
$$
PBM2 follow-up statements
502
WWUS53 KIWX 290836
SVSIWX
Severe Weather Statement
National Weather Service Northern Indiana
436 AM EDT Thu Jul 29 2021
MIC021-027-290845-
/O.CON.KIWX.SV.W.0063.000000T0000Z-210729T0845Z/
Cass MI-Berrien MI-
436 AM EDT Thu Jul 29 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 AM EDT
FOR WESTERN CASS AND BERRIEN COUNTIES...
At 435 AM EDT, a severe thunderstorm was located near Dowagiac,
moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Niles, Benton Harbor, St. Joseph, Dowagiac, Buchanan, Fair Plain,
Benton Heights, Bridgman, Berrien Springs, Watervliet, Coloma,
Stevensville, Paw Paw Lake, Lake Michigan Beach, Bertrand, Pokagon,
Sodus, Riverside, Baroda and Shoreham.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4207 8622 4207 8599 4176 8620 4176 8635
4185 8653 4194 8658 4212 8654 4212 8651
4211 8650 4212 8649 4224 8636 4224 8622
TIME...MOT...LOC 0835Z 290DEG 39KT 4200 8620
HAIL...<.75IN
WIND...60MPH
$$
PBM976
WWUS53 KIWX 290845
SVSIWX
Severe Weather Statement
National Weather Service Northern Indiana
445 AM EDT Thu Jul 29 2021
MIC021-027-290855-
/O.EXP.KIWX.SV.W.0063.000000T0000Z-210729T0845Z/
Cass MI-Berrien MI-
445 AM EDT Thu Jul 29 2021
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN CASS AND BERRIEN
COUNTIES HAS EXPIRED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been allowed to expire. However gusty
winds are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 900 AM EDT for
north central Indiana...and southwestern Michigan.
LAT...LON 4207 8622 4207 8599 4176 8620 4176 8635
4185 8653 4194 8658 4212 8654 4212 8651
4211 8650 4212 8649 4224 8636 4224 8622
TIME...MOT...LOC 0845Z 290DEG 39KT 4197 8611
$$
PBMThe office that day
Everything else NWS Northern Indiana issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 4:39 AM EDT | Special Weather Statement | IWX | Cass, Saint Joseph | 36 min |
| Jul 29, 5:21 AM EDT | Special Weather Statement | IWX | Branch | 39 min |
| Jul 29, 5:54 AM EDT | Special Weather Statement | IWX | Hillsdale | 36 min |
Nearby
Severe 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.