Alert archive / Michigan / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 14, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at Jun 21, 2021, 1:30 AM EDT for Kalamazoo County, Michigan. It was in force for 60 min. 1 report 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, 1:30 AM EDT (05:30 UTC)
- Expired
- Jun 21, 2021, 2:30 AM EDT
- In force
- 60 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Kalamazoo County, MI
The radar
The Grand Rapids radar (KGRR), 69 km from the middle of the area, began a volume at 05:31 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, 2:06 AM EDT | TSTM WND GST 39 | 3 Ne Portage, MI | ASOS STATION KAZO KZOO/BATTLE CREEK INTL AIRPORT. |
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, 5.5 hours before the alert went out and 181 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.
390
WUUS53 KGRR 210530
SVRGRR
MIC077-210630-
/O.NEW.KGRR.SV.W.0014.210621T0530Z-210621T0630Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Rapids MI
130 AM EDT Mon Jun 21 2021
The National Weather Service in Grand Rapids has issued a
* Severe Thunderstorm Warning for...
Kalamazoo County in southwestern Michigan...
* Until 230 AM EDT.
* At 130 AM EDT, a severe thunderstorm was located over Lawton, or
near Paw Paw, moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Kalamazoo... Portage... Vicksburg...
Galesburg... Schoolcraft... Climax...
Richland... Comstock Northwest... Westwood...
Gull Lake... Fulton... Augusta...
Oshtemo... Comstock... Scotts...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4232 8576 4242 8541 4242 8530 4207 8529
4207 8576
TIME...MOT...LOC 0530Z 253DEG 24KT 4217 8586
TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
$$
HOVING4 follow-up statements
031
WWUS53 KGRR 210543
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
143 AM EDT Mon Jun 21 2021
MIC077-210630-
/O.CON.KGRR.SV.W.0014.000000T0000Z-210621T0630Z/
Kalamazoo MI-
143 AM EDT Mon Jun 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 AM EDT
FOR KALAMAZOO COUNTY...
At 142 AM EDT, a severe thunderstorm was located near Mattawan, or 7
miles east of Paw Paw, moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Kalamazoo... Portage... Vicksburg...
Galesburg... Schoolcraft... Climax...
Richland... Comstock Northwest... Westwood...
Gull Lake... Fulton... Augusta...
Oshtemo... Comstock... Scotts...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4232 8576 4242 8541 4242 8530 4207 8529
4207 8576
TIME...MOT...LOC 0542Z 253DEG 24KT 4220 8575
TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
$$
04554
WWUS53 KGRR 210551
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
151 AM EDT Mon Jun 21 2021
MIC077-210630-
/O.CON.KGRR.SV.W.0014.000000T0000Z-210621T0630Z/
Kalamazoo MI-
151 AM EDT Mon Jun 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 AM EDT
FOR KALAMAZOO COUNTY...
At 151 AM EDT, a severe thunderstorm was located near Portage, moving
east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Kalamazoo... Portage... Vicksburg...
Galesburg... Schoolcraft... Climax...
Richland... Comstock Northwest... Westwood...
Gull Lake... Fulton... Augusta...
Oshtemo... Comstock... Scotts...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4232 8576 4242 8541 4242 8530 4207 8529
4207 8576
TIME...MOT...LOC 0551Z 253DEG 24KT 4222 8567
TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
$$
04401
WWUS53 KGRR 210609
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
209 AM EDT Mon Jun 21 2021
MIC077-210630-
/O.CON.KGRR.SV.W.0014.000000T0000Z-210621T0630Z/
Kalamazoo MI-
209 AM EDT Mon Jun 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 AM EDT
FOR KALAMAZOO COUNTY...
At 209 AM EDT, a severe thunderstorm was located near Galesburg, or 6
miles east of Kalamazoo, moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Kalamazoo... Portage... Vicksburg...
Galesburg... Schoolcraft... Climax...
Richland... Comstock Northwest... Westwood...
Gull Lake... Fulton... Augusta...
Comstock... Scotts...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4242 8541 4242 8530 4207 8529 4207 8566
4235 8565
TIME...MOT...LOC 0609Z 256DEG 28KT 4225 8547
TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
$$
04761
WWUS53 KGRR 210625
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
225 AM EDT Mon Jun 21 2021
MIC077-210635-
/O.EXP.KGRR.SV.W.0014.000000T0000Z-210621T0630Z/
Kalamazoo MI-
225 AM EDT Mon Jun 21 2021
...THE SEVERE THUNDERSTORM WARNING FOR KALAMAZOO COUNTY WILL EXPIRE
AT 230 AM EDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 600 AM EDT for
south central and southwestern Michigan.
LAT...LON 4242 8541 4242 8530 4207 8529 4207 8566
4235 8565
TIME...MOT...LOC 0625Z 253DEG 24KT 4228 8534
$$
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, 1:12 AM EDT | Tornado Warning | GRR | Van Buren | 36 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.