Alert archive / Michigan / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 59, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at Jul 24, 2021, 8:14 PM EDT for Washtenaw County, Wayne County, Michigan. It was in force for 76 min. 2 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, 8:14 PM EDT (00:14 UTC)
- Expired
- Jul 24, 2021, 9:30 PM EDT
- In force
- 76 min
- Issued by
- NWS Detroit, MI
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties Washtenaw County, MI, Wayne County, MI
The radar
The Detroit radar (KDTX), 57 km from the middle of the area, began a volume at 00:16 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, 8:55 PM EDT | TSTM WND DMG | 6 Nnw Milan, MI | LARGE TREE LIMB DOWN ACROSS ROAD NEAR MOON RD AND WEST WILLIS RD. REPORTED VIA SOCIAL MEDIA PHOTO. |
| Jul 24, 9:13 PM EDT | TSTM WND DMG | 6 Wnw Flat Rock, MI | NUMEROUS REPORTS OF TREE DAMAGE AT THE WILLOW METROPARK GOLF COURSE. |
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
Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.2 hours before the alert went out and 316 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
- 1517 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 141 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
093
WUUS53 KDTX 250014
SVRDTX
MIC161-163-250130-
/O.NEW.KDTX.SV.W.0059.210725T0014Z-210725T0130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Detroit/Pontiac MI
814 PM EDT Sat Jul 24 2021
The National Weather Service in Detroit/Pontiac has issued a
* Severe Thunderstorm Warning for...
Wayne County in southeastern Michigan...
Eastern Washtenaw County in southeastern Michigan...
* Until 930 PM EDT.
* At 814 PM EDT, severe thunderstorms were located along a line
extending from near Mount Clemens to near Brighton, moving
southeast at 35 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Northville, Canton, Romulus, Taylor, Greenfield Village, Flat
Rock, Wyandotte, Trenton and Grosse Ile.
People attending Comerica Park should seek safe shelter immediately!
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4235 8291 4232 8306 4229 8309 4224 8313
4211 8313 4204 8318 4205 8323 4209 8329
4208 8375 4243 8378 4245 8283
TIME...MOT...LOC 0014Z 309DEG 31KT 4260 8296 4252 8371
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...70MPH
$$
KDK5 follow-up statements
788
WWUS53 KDTX 250033
SVSDTX
Severe Weather Statement
National Weather Service Detroit/Pontiac MI
833 PM EDT Sat Jul 24 2021
MIC161-163-250130-
/O.CON.KDTX.SV.W.0059.000000T0000Z-210725T0130Z/
Wayne MI-Washtenaw MI-
833 PM EDT Sat Jul 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR WAYNE AND EASTERN WASHTENAW COUNTIES...
At 832 PM EDT, severe thunderstorms were located along a line
extending from near Warren to Whitmore Lake to near Manchester,
moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe storms will be near...
Grosse Pointe around 845 PM EDT.
Northville around 850 PM EDT.
Milan and Canton around 855 PM EDT.
Livonia and Willis around 900 PM EDT.
Romulus and Belleville around 905 PM EDT.
Taylor and Greenfield Village around 910 PM EDT.
Detroit and Dearborn around 915 PM EDT.
Flat Rock, Downtown Detroit and Wyandotte around 920 PM EDT.
Other locations impacted by these severe thunderstorms include
Melvindale, Whittaker, Gibraltar, New Boston, Rockwood, Harper Woods,
Westland, Grosse Pointe Shores, Ecorse and Grosse Pointe Woods.
People attending Comerica Park should seek safe shelter immediately!
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4235 8291 4232 8306 4229 8309 4224 8313
4211 8313 4204 8318 4205 8323 4209 8329
4208 8375 4243 8378 4245 8283
TIME...MOT...LOC 0032Z 284DEG 37KT 4245 8307 4242 8373 4219 8394
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
RBP154
WWUS53 KDTX 250048
SVSDTX
Severe Weather Statement
National Weather Service Detroit/Pontiac MI
848 PM EDT Sat Jul 24 2021
MIC161-163-250130-
/O.CON.KDTX.SV.W.0059.000000T0000Z-210725T0130Z/
Wayne MI-Washtenaw MI-
848 PM EDT Sat Jul 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR WAYNE AND EASTERN WASHTENAW COUNTIES...
At 848 PM EDT, severe thunderstorms were located along a line
extending from near Grosse Pointe to near Salem to near Saline,
moving southeast at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe storms will be near...
Grosse Pointe and Belle Isle around 855 PM EDT.
Belleville around 910 PM EDT.
Romulus around 920 PM EDT.
Taylor around 925 PM EDT.
Flat Rock around 930 PM EDT.
Wyandotte and Trenton around 935 PM EDT.
Grosse Ile around 940 PM EDT.
Other locations impacted by these severe thunderstorms include
Melvindale, Whittaker, Gibraltar, New Boston, Rockwood, Harper Woods,
Westland, Grosse Pointe Shores, Ecorse and Grosse Pointe Woods.
People attending Comerica Park should seek safe shelter immediately!
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4235 8291 4232 8306 4229 8309 4224 8313
4211 8313 4204 8318 4205 8323 4209 8329
4208 8375 4232 8377 4243 8366 4245 8283
TIME...MOT...LOC 0048Z 305DEG 29KT 4239 8295 4236 8361 4213 8382
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
TF243
WWUS53 KDTX 250103
SVSDTX
Severe Weather Statement
National Weather Service Detroit/Pontiac MI
903 PM EDT Sat Jul 24 2021
MIC161-163-250130-
/O.CON.KDTX.SV.W.0059.000000T0000Z-210725T0130Z/
Wayne MI-Washtenaw MI-
903 PM EDT Sat Jul 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR WAYNE AND SOUTHEASTERN WASHTENAW COUNTIES...
At 902 PM EDT, severe thunderstorms were located along a line
extending from 6 miles southeast of Grosse Pointe to Canton to near
Milan, moving southeast at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe storms will be near...
Taylor around 920 PM EDT.
Flat Rock around 930 PM EDT.
Trenton and Grosse Ile around 935 PM EDT.
Other locations impacted by these severe thunderstorms include
Melvindale, Whittaker, Gibraltar, New Boston, Rockwood, Harper Woods,
Westland, Grosse Pointe Shores, Ecorse and Grosse Pointe Woods.
People attending Comerica Park should seek safe shelter immediately!
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4235 8291 4232 8306 4229 8309 4224 8313
4211 8313 4204 8318 4205 8323 4209 8329
4208 8375 4223 8360 4240 8346 4245 8283
TIME...MOT...LOC 0102Z 309DEG 31KT 4231 8283 4228 8348 4205 8369
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
TF876
WWUS53 KDTX 250119
SVSDTX
Severe Weather Statement
National Weather Service Detroit/Pontiac MI
919 PM EDT Sat Jul 24 2021
MIC161-250129-
/O.CAN.KDTX.SV.W.0059.000000T0000Z-210725T0130Z/
Washtenaw MI-
919 PM EDT Sat Jul 24 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WASHTENAW 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
southeastern Michigan.
LAT...LON 4205 8323 4209 8329 4209 8345 4237 8322
4239 8288 4236 8291 4232 8306 4229 8309
4224 8313 4211 8313 4204 8318
TIME...MOT...LOC 0119Z 307DEG 38KT 4218 8305 4218 8323 4204 8342
$$
MIC163-250130-
/O.CON.KDTX.SV.W.0059.000000T0000Z-210725T0130Z/
Wayne MI-
919 PM EDT Sat Jul 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR CENTRAL WAYNE COUNTY...
At 919 PM EDT, severe thunderstorms were located along a line
extending from 6 miles east of Wyandotte to near Trenton to Carleton,
moving southeast at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe storms will be near...
Grosse Ile around 925 PM EDT.
Other locations impacted by these severe thunderstorms include
Brownstown Township, Melvindale, Gibraltar, Riverview, Rockwood,
Willow, Ecorse, Southwest Detroit, Allen Park and River Rouge.
People attending Comerica Park should seek safe shelter immediately!
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4205 8323 4209 8329 4209 8345 4237 8322
4239 8288 4236 8291 4232 8306 4229 8309
4224 8313 4211 8313 4204 8318
TIME...MOT...LOC 0119Z 307DEG 38KT 4218 8305 4218 8323 4204 8342
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
TF592
WWUS53 KDTX 250133
SVSDTX
Severe Weather Statement
National Weather Service Detroit/Pontiac MI
933 PM EDT Sat Jul 24 2021
MIC163-250142-
/O.EXP.KDTX.SV.W.0059.000000T0000Z-210725T0130Z/
Wayne MI-
933 PM EDT Sat Jul 24 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL WAYNE COUNTY 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 1000 PM EDT for
southeastern Michigan.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Detroit/Pontiac.
Remember, a Severe Thunderstorm Warning still remains in effect for
south central Wayne County until 1030 PM EDT.
LAT...LON 4205 8323 4209 8329 4209 8345 4237 8322
4239 8288 4236 8291 4232 8306 4229 8309
4224 8313 4211 8313 4204 8318
TIME...MOT...LOC 0132Z 309DEG 31KT 4211 8294 4211 8312 4197 8331
$$
TFThe office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 8:01 PM EDT | Severe Thunderstorm Warning | DTX | Macomb | 59 min |
| Jul 24, 8:07 PM EDT | Tornado Warning | DTX | Macomb, Saint Clair | 12 min |
| Jul 24, 8:23 PM EDT | Special Marine Warning | DTX | 67 min | |
| Jul 24, 8:26 PM EDT | Special Marine Warning | DTX | 64 min | |
| Jul 24, 8:45 PM EDT | Flash Flood Warning | DTX | Macomb, Oakland | 4 hr |
| Jul 24, 8:50 PM EDT | Severe Thunderstorm Warning | DTX | Lenawee, Washtenaw | 55 min |
| Jul 24, 8:58 PM EDT | Severe Thunderstorm Warning | DTX | Monroe | 77 min |
| Jul 24, 8:59 PM EDT | Flash Flood Warning | DTX | Wayne | 4 hr |
| Jul 24, 9:06 PM EDT | Special Marine Warning | DTX | 69 min | |
| Jul 24, 9:27 PM EDT | Special Marine Warning | DTX | 20 min | |
| Jul 24, 9:30 PM EDT | Severe Thunderstorm Warning | DTX | Wayne | 16 min |
| Jul 24, 9:41 PM EDT | Severe Thunderstorm Warning | DTX | Lenawee | 44 min |
| Jul 25, 4:03 AM EDT | Dense Fog Advisory | DTX | Huron, Lapeer, Lenawee, Livingston, Macomb, Monroe and 6 more | 5 hr |
| Jul 25, 8:12 AM EDT | River Flood Warning | DTX | Wayne | 23 hr |
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.