Alert archive / Michigan / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 13, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at Jun 21, 2021, 12:38 AM EDT for Van Buren County, Michigan. It was in force for 67 min. 5 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
- Jun 21, 2021, 12:38 AM EDT (04:38 UTC)
- Expired
- Jun 21, 2021, 1:45 AM EDT
- In force
- 67 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Van Buren County, MI
The radar
The Grand Rapids radar (KGRR), 89 km from the middle of the area, began a volume at 04:42 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 |
|---|---|---|---|
| Jun 21, 12:49 AM EDT | HAIL 0.75 | 1 N Dewey Lake, MI | REPORT FROM MPING: DIME (0.75 IN.). |
| Jun 21, 1:15 AM EDT | HAIL 1 | Hartford, MI | PUBLIC REPORT VIA LOCAL TV MEDIA OF 1 INCH HAIL IN HARTFORD AROUND 1:15 AM. |
| Jun 21, 1:30 AM EDT | TSTM WND GST 65 | Lawton, MI | PUBLIC REPORT OF WINDS ESTIMATED AROUND 65 MPH AROUND 130 AM AS THUNDERSTORM CAME THROUGH. 8 INCH TREE LIMB FELL ON A HOUSE. STRONG WINDS LASTED 3-5 MINUTES (ESTIMATED). |
| Jun 21, 1:41 AM EDT | TSTM WND DMG | 1 N Dewey Lake, MI | REPORT FROM MPING: 3-INCH TREE LIMBS BROKEN; POWER POLES BROKEN. |
| Jun 21, 1:45 AM EDT | TSTM WND GST 54 | 1 Ese Lawton, MI | MAWN MESONET STATION MILAW 0.9 SE LAWTON. |
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 |
|---|---|---|---|
| Jun 20, 6:06 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 4.6 hours before the alert went out and 231 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
- 133 J/kg
- Mixed-layer CIN
- -112 J/kg
- Mixed-layer LCL
- 1501 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
823
WUUS53 KGRR 210438
SVRGRR
MIC159-210545-
/O.NEW.KGRR.SV.W.0013.210621T0438Z-210621T0545Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Rapids MI
1238 AM EDT Mon Jun 21 2021
The National Weather Service in Grand Rapids has issued a
* Severe Thunderstorm Warning for...
Van Buren County in southwestern Michigan...
* Until 145 AM EDT.
* At 1237 AM EDT, a severe thunderstorm was located 6 miles south of
Watervliet, or 7 miles east of Benton Heights, moving northeast at
35 mph.
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...
South Haven... Paw Paw... Hartford...
Mattawan... Lawton... Bangor...
Decatur... Van Buren SP... Lake Michigan
Beach...
Pine Grove... Covert... Keeler...
Lawrence... Gobles... Bloomingdale...
Breedsville... Glendale... Grand Junction...
Kendall... Lacota...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4207 8622 4208 8623 4224 8622 4224 8637
4235 8630 4241 8628 4242 8627 4242 8577
4207 8576
TIME...MOT...LOC 0437Z 219DEG 30KT 4210 8627
HAIL...1.00IN
WIND...60MPH
$$
HOVING2 follow-up statements
090
WWUS53 KGRR 210452
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
1252 AM EDT Mon Jun 21 2021
MIC159-210545-
/O.CON.KGRR.SV.W.0013.000000T0000Z-210621T0545Z/
Van Buren MI-
1252 AM EDT Mon Jun 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 AM EDT
FOR VAN BUREN COUNTY...
At 1252 AM EDT, a severe thunderstorm was located near Watervliet, or
11 miles east of Benton Heights, moving northeast at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
South Haven... Paw Paw... Hartford...
Mattawan... Lawton... Bangor...
Decatur... Van Buren SP... Lake Michigan Beach...
Pine Grove... Covert... Keeler...
Lawrence... Gobles... Bloomingdale...
Breedsville... Glendale... Grand Junction...
Kendall... Lacota...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4207 8622 4208 8623 4224 8622 4224 8637
4235 8630 4241 8628 4242 8627 4242 8577
4207 8576
TIME...MOT...LOC 0452Z 224DEG 19KT 4215 8619
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
$$
04309
WWUS53 KGRR 210534
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
134 AM EDT Mon Jun 21 2021
MIC159-210545-
/O.CON.KGRR.SV.W.0013.000000T0000Z-210621T0545Z/
Van Buren MI-
134 AM EDT Mon Jun 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 AM EDT
FOR VAN BUREN COUNTY...
At 134 AM EDT, a severe thunderstorm was located near Paw Paw, moving
northeast at 20 mph.
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...
Paw Paw... Mattawan... Lawton...
Bangor... Decatur... Pine Grove...
Lawrence... Gobles... Bloomingdale...
Breedsville... Glendale... Grand Junction...
Kendall...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4207 8616 4223 8614 4236 8614 4241 8611
4242 8613 4242 8577 4207 8576
TIME...MOT...LOC 0534Z 245DEG 19KT 4227 8597
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
$$
04The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 8:42 PM EDT | Severe Thunderstorm Warning | GRR | Calhoun, Eaton, Ingham, Jackson | 63 min |
| Jun 20, 10:39 PM EDT | Areal Flood Advisory | GRR | Allegan, Calhoun, Jackson, Kalamazoo, Van Buren | 6 hr |
| Jun 21, 12:45 AM EDT | Special Marine Warning | GRR | 31 min | |
| Jun 21, 1:12 AM EDT | Tornado Warning | GRR | Van Buren | 36 min |
| Jun 21, 1:30 AM EDT | Severe Thunderstorm Warning | GRR | Kalamazoo | 60 min |
| Jun 21, 1:33 AM EDT | Severe Thunderstorm Warning | GRR | Calhoun | 57 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.