Alert archive / Michigan / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 98, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at Aug 29, 2021, 5:25 PM EDT for Livingston County, Michigan. It was in force for 65 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
- Aug 29, 2021, 5:25 PM EDT (21:25 UTC)
- Expired
- Aug 29, 2021, 6:30 PM EDT
- In force
- 65 min
- Issued by
- NWS Detroit, MI
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Livingston County, MI
The radar
The Detroit radar (KDTX), 33 km from the middle of the area, began a volume at 21:27 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 |
|---|---|---|---|
| Aug 29, 5:32 PM EDT | TSTM WND DMG | 2 Nnw Fowlerville, MI | A COUPLE LARGE TREES DOWN OVER THE ROAD NEAR THE INTERSECTION OF GREGORY ROAD AND ALLEN ROAD. |
| Aug 29, 5:37 PM EDT | TSTM WND DMG | 2 Nnw Fowlerville, MI | A COUPLE LARGE TREES DOWN OVER THE ROAD NEAR THE INTERSECTION OF GREGORY ROAD AND ALLEN ROAD. |
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 |
|---|---|---|---|
| Aug 29, 1:46 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 9.4 hours before the alert went out and 37 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
- 1500 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 915 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -80 m²/s²
- 0-3 km storm-relative helicity
- -70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
673 WUUS53 KDTX 292125 SVRDTX MIC093-292230- /O.NEW.KDTX.SV.W.0098.210829T2125Z-210829T2230Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Detroit/Pontiac MI 525 PM EDT Sun Aug 29 2021 The National Weather Service in Detroit/Pontiac has issued a * Severe Thunderstorm Warning for... Livingston County in southeastern Michigan... * Until 630 PM EDT. * At 525 PM EDT, severe thunderstorms were located along a line extending from near Perry to near Williamston to near Stockbridge, moving east at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Severe thunderstorms will be near... Fowlerville around 540 PM EDT. Howell around 550 PM EDT. Cohoctah and Oak Grove around 555 PM EDT. Brighton around 605 PM EDT. Hartland around 610 PM EDT. Other locations impacted by these severe thunderstorms include Parkers Corners, Chilson, Plainfield, Conway Township, Tyrone Township and Deerfield Township. 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 4278 8369 4251 8367 4246 8414 4278 8416 TIME...MOT...LOC 2125Z 254DEG 33KT 4279 8431 4265 8426 4247 8426 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Mann
3 follow-up statements
725 WWUS53 KDTX 292141 SVSDTX Severe Weather Statement National Weather Service Detroit/Pontiac MI 541 PM EDT Sun Aug 29 2021 MIC093-292230- /O.CON.KDTX.SV.W.0098.000000T0000Z-210829T2230Z/ Livingston MI- 541 PM EDT Sun Aug 29 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT FOR LIVINGSTON COUNTY... At 540 PM EDT, severe thunderstorms were located along a line extending from near Bancroft to near Fowlerville to near Stockbridge, moving east at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. These severe storms will be near... Fowlerville around 545 PM EDT. Howell around 555 PM EDT. Cohoctah and Oak Grove around 600 PM EDT. Brighton around 615 PM EDT. Hartland around 620 PM EDT. Other locations impacted by these severe thunderstorms include Parkers Corners, Chilson, Plainfield, Conway Township, Tyrone Township and Deerfield Township. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. To report severe weather contact your nearest law enforcement agency. They will send your report to the National Weather Service office in Detroit/Pontiac. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4278 8369 4251 8367 4246 8414 4278 8416 TIME...MOT...LOC 2140Z 254DEG 30KT 4280 8405 4267 8412 4250 8418 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Behnke
130 WWUS53 KDTX 292153 SVSDTX Severe Weather Statement National Weather Service Detroit/Pontiac MI 553 PM EDT Sun Aug 29 2021 MIC093-292230- /O.CON.KDTX.SV.W.0098.000000T0000Z-210829T2230Z/ Livingston MI- 553 PM EDT Sun Aug 29 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT FOR LIVINGSTON COUNTY... At 553 PM EDT, severe thunderstorms were located along a line extending from near Linden to Howell to near Gregory, moving east at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. These severe storms will be near... Hartland around 610 PM EDT. Brighton around 620 PM EDT. Other locations impacted by these severe thunderstorms include Parkers Corners, Chilson, Plainfield, Conway Township, Tyrone Township and Deerfield Township. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. To report severe weather contact your nearest law enforcement agency. They will send your report to the National Weather Service office in Detroit/Pontiac. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4278 8369 4251 8367 4246 8414 4278 8416 TIME...MOT...LOC 2153Z 268DEG 27KT 4277 8381 4261 8391 4249 8406 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Behnke
332 WWUS53 KDTX 292228 SVSDTX Severe Weather Statement National Weather Service Detroit/Pontiac MI 628 PM EDT Sun Aug 29 2021 MIC093-292238- /O.EXP.KDTX.SV.W.0098.000000T0000Z-210829T2230Z/ Livingston MI- 628 PM EDT Sun Aug 29 2021 ...THE SEVERE THUNDERSTORM WARNING FOR LIVINGSTON COUNTY WILL EXPIRE AT 630 PM EDT... The storms which prompted the warning have moved out of the warned area. Therefore, the warning will be allowed to expire. A Severe Thunderstorm Watch remains in effect until 800 PM EDT for southeastern Michigan. LAT...LON 4278 8369 4251 8367 4246 8414 4278 8416 TIME...MOT...LOC 2228Z 254DEG 33KT 4285 8342 4269 8352 4257 8367 $$ Behnke
The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 8:18 PM EDT | Special Weather Statement | DTX | Saginaw | 72 min |
| Aug 28, 8:22 PM EDT | Special Weather Statement | DTX | Saint Clair, Sanilac | 68 min |
| Aug 28, 10:00 PM EDT | Severe Thunderstorm Warning | DTX | Shiawassee | 20 min |
| Aug 28, 10:17 PM EDT | Special Weather Statement | DTX | Genesee | 28 min |
| Aug 29, 1:53 AM EDT | Special Weather Statement | DTX | Bay, Midland | 67 min |
| Aug 29, 2:16 AM EDT | Severe Thunderstorm Warning | DTX | Bay, Midland | 44 min |
| Aug 29, 2:32 AM EDT | Special Marine Warning | DTX | 42 min | |
| Aug 29, 3:40 PM EDT | Special Weather Statement | DTX | Bay, Midland | 65 min |
| Aug 29, 3:54 PM EDT | Special Marine Warning | DTX | 108 min | |
| Aug 29, 4:07 PM EDT | Special Weather Statement | DTX | Saginaw, Shiawassee | 83 min |
| Aug 29, 4:30 PM EDT | Severe Thunderstorm Warning | DTX | Saginaw, Shiawassee | 75 min |
| Aug 29, 4:38 PM EDT | Special Weather Statement | DTX | Huron | 67 min |
| Aug 29, 4:58 PM EDT | Severe Thunderstorm Warning | DTX | Huron | 62 min |
| Aug 29, 5:11 PM EDT | Severe Thunderstorm Warning | DTX | Bay, Genesee, Tuscola | 79 min |
| Aug 29, 5:32 PM EDT | Special Marine Warning | DTX | 118 min | |
| Aug 29, 5:56 PM EDT | Severe Thunderstorm Warning | DTX | Oakland | 64 min |
| Aug 29, 5:58 PM EDT | Severe Thunderstorm Warning | DTX | Lapeer | 62 min |
| Aug 29, 6:00 PM EDT | Severe Thunderstorm Warning | DTX | Huron | 59 min |
| Aug 29, 6:13 PM EDT | Severe Thunderstorm Warning | DTX | Sanilac | 77 min |
| Aug 29, 6:37 PM EDT | Severe Thunderstorm Warning | DTX | Macomb, Saint Clair | 83 min |
| Aug 29, 6:45 PM EDT | Severe Thunderstorm Warning | DTX | Lenawee | 75 min |
| Aug 29, 6:51 PM EDT | Special Marine Warning | DTX | 114 min | |
| Aug 29, 7:00 PM EDT | Severe Thunderstorm Warning | DTX | Washtenaw | 57 min |
| Aug 29, 7:23 PM EDT | Special Weather Statement | DTX | Monroe | 67 min |
| Aug 29, 7:29 PM EDT | Special Weather Statement | DTX | Wayne | 61 min |
| Aug 29, 7:30 PM EDT | Special Marine Warning | DTX | 68 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.