Alert archive / Michigan / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 90, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at Sep 7, 2021, 5:13 PM EDT for Barry County, Calhoun County, Eaton County, Michigan. It was in force for 47 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Sep 7, 2021, 5:13 PM EDT (21:13 UTC)
- Expired
- Sep 7, 2021, 6:00 PM EDT
- In force
- 47 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Barry County, MI, Calhoun County, MI, Eaton County, MI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 7, 5:20 PM EDT | TSTM WND DMG | 2 Sw Bedford, MI | TREE ON HOUSE ON COLLIER AVENUE WITH MULTIPLE TREES DOWN IN NEIGHBORHOOD. COURTESY OF WWMT. |
| Sep 7, 5:21 PM EDT | TSTM WND GST 66 | 1 Sse Springfield, MI | ASOS STATION KBTL BATTLE CREEK EXECUTIVE AIRPORT. |
| Sep 7, 5:55 PM EDT | TSTM WND GST 43 | 1 E Charlotte, MI | AWOS STATION KFPK CHARLOTTE FITCH BEACH ARPT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 7, 3:20 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 9.2 hours before the alert went out and 134 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
- 1621 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 150 m²/s²
- 0-3 km storm-relative helicity
- 201 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
531
WUUS53 KGRR 072113
SVRGRR
MIC015-025-045-072200-
/O.NEW.KGRR.SV.W.0090.210907T2113Z-210907T2200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Rapids MI
513 PM EDT Tue Sep 7 2021
The National Weather Service in Grand Rapids has issued a
* Severe Thunderstorm Warning for...
Calhoun County in south central Michigan...
Southeastern Barry County in southwestern Michigan...
Southern Eaton County in south central Michigan...
* Until 600 PM EDT.
* At 512 PM EDT, severe thunderstorms were located along a line
extending from 5 miles northeast of Gull Lake to 5 miles southeast
of Vicksburg, moving east at 60 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Charlotte... Albion... Marshall...
Battle Creek... Eaton Rapids... Homer...
Nashville... Bellevue... Burlington...
Level Park-Oak Park... Brownlee Park... Marengo...
Assyria... Kalamo... Olivet...
Brookfield... Athens... Tekonsha...
Pine Creek... Dowling...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4242 8530 4242 8527 4260 8526 4259 8460
4242 8460 4242 8472 4207 8471 4208 8529
TIME...MOT...LOC 2112Z 269DEG 52KT 4245 8532 4209 8544
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MEADE2 follow-up statements
390
WWUS53 KGRR 072141
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
541 PM EDT Tue Sep 7 2021
MIC015-072150-
/O.CAN.KGRR.SV.W.0090.000000T0000Z-210907T2200Z/
Barry MI-
541 PM EDT Tue Sep 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BARRY COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
south central Michigan.
LAT...LON 4208 8515 4242 8514 4242 8507 4260 8507
4259 8460 4242 8460 4242 8472 4207 8471
TIME...MOT...LOC 2140Z 269DEG 52KT 4246 8480 4210 8493
$$
MIC025-045-072200-
/O.CON.KGRR.SV.W.0090.000000T0000Z-210907T2200Z/
Calhoun MI-Eaton MI-
541 PM EDT Tue Sep 7 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR CALHOUN AND SOUTHERN EATON COUNTIES...
At 540 PM EDT, severe thunderstorms were located along a line
extending from 7 miles south of Charlotte to 6 miles southwest of
Homer, moving east at 60 mph. Battle Creek gusted to 66 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Charlotte... Albion... Marshall...
Eaton Rapids... Homer... Bellevue...
Burlington... Brownlee Park... Marengo...
Kalamo... Olivet... Brookfield...
Tekonsha... Ceresco...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4208 8515 4242 8514 4242 8507 4260 8507
4259 8460 4242 8460 4242 8472 4207 8471
TIME...MOT...LOC 2140Z 269DEG 52KT 4246 8480 4210 8493
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
$$
HOVING356
WWUS53 KGRR 072200
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
600 PM EDT Tue Sep 7 2021
MIC025-045-072210-
/O.EXP.KGRR.SV.W.0090.000000T0000Z-210907T2200Z/
Calhoun MI-Eaton MI-
600 PM EDT Tue Sep 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR CALHOUN AND SOUTHERN EATON
COUNTIES HAS EXPIRED...
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been allowed to expire.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
south central Michigan.
LAT...LON 4208 8515 4242 8514 4242 8507 4260 8507
4259 8460 4242 8460 4242 8472 4207 8471
TIME...MOT...LOC 2200Z 269DEG 52KT 4246 8442 4210 8456
$$
HOVINGThe office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 11:50 AM EDT | Special Marine Warning | GRR | 91 min | |
| Sep 7, 12:25 PM EDT | Severe Thunderstorm Warning | GRR | Mason | 65 min |
| Sep 7, 12:32 PM EDT | Severe Thunderstorm Warning | GRR | Lake, Osceola | 58 min |
| Sep 7, 12:40 PM EDT | Special Marine Warning | GRR | 87 min | |
| Sep 7, 12:54 PM EDT | Severe Thunderstorm Warning | GRR | Oceana | 66 min |
| Sep 7, 1:08 PM EDT | Tornado Warning | GRR | Clare, Osceola | 40 min |
| Sep 7, 1:13 PM EDT | Severe Thunderstorm Warning | GRR | Lake, Newaygo | 37 min |
| Sep 7, 1:30 PM EDT | Special Marine Warning | GRR | 60 min | |
| Sep 7, 1:39 PM EDT | Severe Thunderstorm Warning | GRR | Osceola | 38 min |
| Sep 7, 1:51 PM EDT | Severe Thunderstorm Warning | GRR | Muskegon, Oceana | 54 min |
| Sep 7, 2:01 PM EDT | Lakeshore Flood Advisory | GRR | Muskegon | 4 hr |
| Sep 7, 2:03 PM EDT | Severe Thunderstorm Warning | GRR | Clare | 46 min |
| Sep 7, 2:13 PM EDT | Tornado Warning | GRR | Clare | 30 min |
| Sep 7, 2:20 PM EDT | Severe Thunderstorm Warning | GRR | Isabella, Mecosta, Newaygo | 55 min |
| Sep 7, 2:23 PM EDT | Tornado Warning | GRR | Isabella | 21 min |
| Sep 7, 2:40 PM EDT | Severe Thunderstorm Warning | GRR | Kent, Ottawa | 39 min |
| Sep 7, 3:04 PM EDT | Severe Thunderstorm Warning | GRR | Montcalm | 56 min |
| Sep 7, 3:26 PM EDT | Severe Thunderstorm Warning | GRR | Clinton, Gratiot, Ionia | 64 min |
| Sep 7, 3:37 PM EDT | Special Marine Warning | GRR | 83 min | |
| Sep 7, 4:05 PM EDT | Severe Thunderstorm Warning | GRR | Van Buren | 55 min |
| Sep 7, 4:49 PM EDT | Severe Thunderstorm Warning | GRR | Allegan, Barry, Kalamazoo | 42 min |
| Sep 7, 5:40 PM EDT | Severe Thunderstorm Warning | GRR | Ingham, Jackson | 50 min |
| Sep 7, 6:01 PM EDT | Severe Thunderstorm Warning | GRR | Clinton | 29 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.