Alert archive / Michigan / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 24, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at Jun 28, 2021, 7:26 PM EDT for Ingham County, Michigan. It was in force for 35 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
- Jun 28, 2021, 7:26 PM EDT (23:26 UTC)
- Expired
- Jun 28, 2021, 8:01 PM EDT
- In force
- 35 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Ingham County, MI
The radar
The Detroit radar (KDTX), 75 km from the middle of the area, began a volume at 23:27 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 12:00Z, 11.4 hours before the alert went out and 79 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 817 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- -41 m²/s²
- 0-3 km storm-relative helicity
- -16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
050
WUUS53 KGRR 282326
SVRGRR
MIC065-290030-
/O.NEW.KGRR.SV.W.0024.210628T2326Z-210629T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Rapids MI
726 PM EDT Mon Jun 28 2021
The National Weather Service in Grand Rapids has issued a
* Severe Thunderstorm Warning for...
Northern Ingham County in south central Michigan...
* Until 830 PM EDT.
* At 724 PM EDT, a severe thunderstorm was located near Mason, moving
east at 20 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Lansing... Mason... East Lansing...
Williamston... Webberville... Okemos...
Bell Oak... Holt... Haslett...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4257 8456 4268 8459 4277 8438 4277 8437
4278 8436 4278 8416 4261 8415
TIME...MOT...LOC 2324Z 259DEG 19KT 4264 8447
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
HOVING2 follow-up statements
287
WWUS53 KGRR 282342
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
742 PM EDT Mon Jun 28 2021
MIC065-290030-
/O.CON.KGRR.SV.W.0024.000000T0000Z-210629T0030Z/
Ingham MI-
742 PM EDT Mon Jun 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR NORTHEASTERN INGHAM COUNTY...
At 741 PM EDT, a severe thunderstorm was located near Williamston,
or 7 miles northeast of Mason, moving east at 20 mph. This storm has
produced some power outages south of Lansing.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Williamston... Webberville... Okemos...
Bell Oak... Haslett...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4260 8439 4273 8446 4277 8438 4277 8437
4278 8436 4278 8416 4265 8415
TIME...MOT...LOC 2341Z 259DEG 19KT 4266 8435
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
$$
HOVING503
WWUS53 KGRR 290001
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
801 PM EDT Mon Jun 28 2021
MIC065-290011-
/O.CAN.KGRR.SV.W.0024.000000T0000Z-210629T0030Z/
Ingham MI-
801 PM EDT Mon Jun 28 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN INGHAM COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.
LAT...LON 4260 8439 4273 8446 4277 8438 4277 8437
4278 8436 4278 8416 4265 8415
TIME...MOT...LOC 2359Z 259DEG 19KT 4268 8421
$$
HOVINGThe office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 4:00 PM EDT | Special Weather Statement | GRR | Kent | 30 min |
| Jun 28, 6:53 PM EDT | Special Marine Warning | GRR | 67 min | |
| Jun 28, 7:46 PM EDT | Severe Thunderstorm Warning | GRR | Allegan, Ottawa | 44 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.