Alert archive / Michigan / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 35, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at Jul 24, 2021, 5:50 PM EDT for 4 counties in Michigan. It was in force for 55 min. 10 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
- Jul 24, 2021, 5:50 PM EDT (21:50 UTC)
- Expired
- Jul 24, 2021, 6:45 PM EDT
- In force
- 55 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Allegan County, MI, Barry County, MI, Kent County, MI, Ottawa County, MI
The radar
The Grand Rapids radar (KGRR), 23 km from the middle of the area, began a volume at 21:49 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 24, 5:50 PM EDT | TSTM WND DMG | 1 Nw Jenison, MI | TREES AND POWERS LINES DOWN. |
| Jul 24, 5:50 PM EDT | TSTM WND DMG | 2 Sse Jenison, MI | POWER LINES DOWN. |
| Jul 24, 5:53 PM EDT | TSTM WND DMG | 2 Sse Jenison, MI | TREE BLOCKING ROAD. |
| Jul 24, 5:54 PM EDT | TSTM WND DMG | Drenthe, MI | POWER LINE REPORTED DOWN IN A FIELD IN DRENTHE, MI. |
| Jul 24, 5:56 PM EDT | TSTM WND DMG | 2 Ese Drenthe, MI | 3 TREES DOWN ACROSS ROAD. |
| Jul 24, 5:58 PM EDT | TSTM WND GST 52 | 3 Ssw Wyoming, MI | CORRECTS PREVIOUS NON-TSTM WND GST REPORT FROM 3 SSW WYOMING. |
| Jul 24, 5:58 PM EDT | NON-TSTM WND GST 52 | 3 Ssw Wyoming, MI | |
| Jul 24, 6:02 PM EDT | TSTM WND GST 50 | 2 Ene Cutlerville, MI | CORRECTS PREVIOUS NON-TSTM WND GST REPORT FROM 2 ENE CUTLERVILLE. |
| Jul 24, 6:02 PM EDT | NON-TSTM WND GST 50 | 2 Ene Cutlerville, MI | |
| Jul 24, 6:03 PM EDT | TSTM WND DMG | 2 Ese Jamestown, MI | TREE BLOCKING ROAD OF 8TH AND BYRON AVENUE. |
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 |
|---|---|---|---|
| Jul 24, 3:16 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 9.8 hours before the alert went out and 193 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
- 588 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 557 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 113 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
The text
As transmitted.
872 WUUS53 KGRR 242150 SVRGRR MIC005-015-081-139-242245- /O.NEW.KGRR.SV.W.0035.210724T2150Z-210724T2245Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Grand Rapids MI 550 PM EDT Sat Jul 24 2021 The National Weather Service in Grand Rapids has issued a * Severe Thunderstorm Warning for... Northern Allegan County in southwestern Michigan... Southern Kent County in southwestern Michigan... Southeastern Ottawa County in southwestern Michigan... Northwestern Barry County in southwestern Michigan... * Until 645 PM EDT. * At 550 PM EDT, a severe thunderstorm was located near Hudsonville, or 11 miles southwest of Grand Rapids, moving east at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Grand Rapids... Holland... Hastings... Lowell... Wyoming... Kentwood... Walker... Grandville... East Grand Rapids... Hudsonville... Zeeland... Wayland... Middleville... Caledonia... Saugatuck... Freeport... Beechwood... Jenison... Dorr... Irving... PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Damaging winds and frequent cloud to ground lightning is occurring with this storm. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. && LAT...LON 4293 8607 4294 8531 4254 8531 4265 8620 TIME...MOT...LOC 2150Z 278DEG 35KT 4284 8583 TORNADO...POSSIBLE HAIL...<.75IN WIND...60MPH $$ DUKE
3 follow-up statements
166
WWUS53 KGRR 242215
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
615 PM EDT Sat Jul 24 2021
MIC139-242222-
/O.CAN.KGRR.SV.W.0035.000000T0000Z-210724T2245Z/
Ottawa MI-
615 PM EDT Sat Jul 24 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN OTTAWA COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
south central and southwestern Michigan.
LAT...LON 4277 8615 4277 8578 4293 8578 4294 8531
4254 8531 4265 8620
TIME...MOT...LOC 2212Z 289DEG 24KT 4288 8546 4267 8600
$$
MIC005-015-081-242245-
/O.CON.KGRR.SV.W.0035.000000T0000Z-210724T2245Z/
Allegan MI-Kent MI-Barry MI-
615 PM EDT Sat Jul 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR NORTHERN ALLEGAN...SOUTHERN KENT AND NORTHWESTERN BARRY
COUNTIES...
At 612 PM EDT, severe thunderstorms were located along a line
extending from 6 miles east of Kentwood to 7 miles northeast of
Fennville, moving east at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Alto, Caledonia, Middleville, Hopkins, Wayland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4277 8615 4277 8578 4293 8578 4294 8531
4254 8531 4265 8620
TIME...MOT...LOC 2212Z 289DEG 24KT 4288 8546 4267 8600
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
MEADE815
WWUS53 KGRR 242229
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
629 PM EDT Sat Jul 24 2021
MIC005-015-081-242245-
/O.CON.KGRR.SV.W.0035.000000T0000Z-210724T2245Z/
Allegan MI-Kent MI-Barry MI-
629 PM EDT Sat Jul 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR NORTHEASTERN ALLEGAN...SOUTHEASTERN KENT AND NORTHWESTERN BARRY
COUNTIES...
At 626 PM EDT, severe thunderstorms were located along a line
extending from Caledonia to near Wayland, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Wayland, Middleville, Dorr, Irving, Hopkins, Bradley, Shelbyville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4284 8551 4286 8531 4254 8531 4264 8604
TIME...MOT...LOC 2226Z 284DEG 37KT 4279 8551 4262 8559
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
MEADE017
WWUS53 KGRR 242246
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
646 PM EDT Sat Jul 24 2021
MIC005-015-081-242256-
/O.EXP.KGRR.SV.W.0035.000000T0000Z-210724T2245Z/
Allegan MI-Kent MI-Barry MI-
646 PM EDT Sat Jul 24 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ALLEGAN...
SOUTHEASTERN KENT AND NORTHWESTERN BARRY COUNTIES HAS EXPIRED...
The storms which prompted the warning have weakened. Therefore, the
warning has been allowed to expire.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
south central and southwestern Michigan.
LAT...LON 4284 8551 4286 8531 4254 8531 4264 8604
TIME...MOT...LOC 2246Z 278DEG 35KT 4276 8526 4259 8534
$$
MEADEThe office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 12:30 PM EDT | Special Weather Statement | GRR | Clare, Lake, Osceola | 60 min |
| Jul 24, 2:58 PM EDT | Severe Thunderstorm Warning | GRR | Clare | 32 min |
| Jul 24, 4:38 PM EDT | Severe Thunderstorm Warning | GRR | Gratiot | 52 min |
| Jul 24, 6:58 PM EDT | Severe Thunderstorm Warning | GRR | Clinton, Eaton, Ingham | 62 min |
| Jul 24, 7:17 PM EDT | Severe Thunderstorm Warning | GRR | Eaton, Ingham | 43 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; radar from the NEXRAD Level II archive.