Alert archive / Michigan / Tornado Warnings in 2021
Tornado Warning 1, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this tornado warning at Jun 21, 2021, 1:12 AM EDT for Van Buren County, Michigan. It was in force for 36 min. 4 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, 1:12 AM EDT (05:12 UTC)
- Expired
- Jun 21, 2021, 1:48 AM EDT
- In force
- 36 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
County Van Buren County, MI
The radar
The Northern Indiana radar (KIWX), 92 km from the middle of the area, began a volume at 05:13 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, 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 21, 1:00 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 5.2 hours before the alert went out and 223 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.
075
WFUS53 KGRR 210512
TORGRR
MIC159-210600-
/O.NEW.KGRR.TO.W.0001.210621T0512Z-210621T0600Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Grand Rapids MI
112 AM EDT Mon Jun 21 2021
The National Weather Service in Grand Rapids has issued a
* Tornado Warning for...
Southeastern Van Buren County in southwestern Michigan...
* Until 200 AM EDT.
* At 112 AM EDT, a severe thunderstorm capable of producing a tornado
was located near Decatur, or 8 miles north of Dowagiac, moving east
at 30 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Decatur around 125 AM EDT.
Paw Paw around 135 AM EDT.
Lawton around 140 AM EDT.
Mattawan around 150 AM EDT.
Other locations impacted by this tornadic thunderstorm include Keeler
and Lawrence.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4207 8622 4220 8622 4230 8577 4207 8576
TIME...MOT...LOC 0512Z 253DEG 25KT 4210 8606
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
HOVING2 follow-up statements
212
WWUS53 KGRR 210521
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
121 AM EDT Mon Jun 21 2021
MIC159-210600-
/O.CON.KGRR.TO.W.0001.000000T0000Z-210621T0600Z/
Van Buren MI-
121 AM EDT Mon Jun 21 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 200 AM EDT FOR
SOUTHEASTERN VAN BUREN COUNTY...
At 120 AM EDT, a severe thunderstorm capable of producing a tornado
was located over Decatur, or 7 miles southwest of Paw Paw, moving
east at 30 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Paw Paw and Lawton around 135 AM EDT.
Mattawan around 145 AM EDT.
Other locations impacted by this tornadic thunderstorm include Keeler
and Lawrence.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4207 8622 4220 8622 4230 8577 4207 8576
TIME...MOT...LOC 0520Z 252DEG 27KT 4212 8597
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
04852
WWUS53 KGRR 210548
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
148 AM EDT Mon Jun 21 2021
MIC159-210558-
/O.CAN.KGRR.TO.W.0001.000000T0000Z-210621T0600Z/
Van Buren MI-
148 AM EDT Mon Jun 21 2021
...THE TORNADO WARNING FOR SOUTHEASTERN VAN BUREN 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.
A Severe Thunderstorm Watch remains in effect until 600 AM EDT for
southwestern Michigan.
LAT...LON 4207 8622 4220 8622 4230 8577 4207 8576
TIME...MOT...LOC 0547Z 253DEG 25KT 4218 8572
$$
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, 12:38 AM EDT | Severe Thunderstorm Warning | GRR | Van Buren | 67 min |
| Jun 21, 12:45 AM EDT | Special Marine Warning | GRR | 31 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
Tornado Warnings in Michigan, 2021Every tornado warning in 2021Tornadoes 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.