Alert archive / Michigan / Tornado Warnings in 2021
Tornado Warning 16, NWS Detroit, MI
NWS Detroit, MI issued this tornado warning at Oct 3, 2021, 6:21 PM EDT for Oakland County, Michigan. It was in force for 22 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
- Oct 3, 2021, 6:21 PM EDT (22:21 UTC)
- Expired
- Oct 3, 2021, 6:43 PM EDT
- In force
- 22 min
- Issued by
- NWS Detroit, MI
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Oakland County, MI
The radar
The Detroit radar (KDTX), 17 km from the middle of the area, began a volume at 22:24 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 |
|---|---|---|---|
| Oct 3, 6:21 PM EDT | TORNADO | 5 Nw Clarkston, MI | BRIEF EF0 TORNADO OCCURRED NEAR DIXIE HWY AND E HOLLY RD WITH MAXIMUM WINDS ESTIMATED AT 65 MPH. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 10.4 hours before the alert went out and 14 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
- 382 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 481 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
828
WFUS53 KDTX 032221
TORDTX
MIC125-032300-
/O.NEW.KDTX.TO.W.0016.211003T2221Z-211003T2300Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Detroit/Pontiac MI
621 PM EDT Sun Oct 3 2021
The National Weather Service in Detroit/Pontiac has issued a
* Tornado Warning for...
Northeastern Oakland County in southeastern Michigan...
* Until 700 PM EDT.
* At 621 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Ortonville, or near Holly, moving east at 20 mph.
HAZARD...Tornado.
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...
Ortonville around 630 PM EDT.
Oxford around 655 PM EDT.
Other locations impacted by this tornadic thunderstorm include
Lakeville, Lake Orion and Leonard.
This includes I-75 near mile marker 96.
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 4275 8351 4284 8354 4289 8318 4289 8310
4276 8310
TIME...MOT...LOC 2221Z 256DEG 17KT 4279 8349
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
DG2 follow-up statements
566
WWUS53 KDTX 032239
SVSDTX
Severe Weather Statement
National Weather Service Detroit/Pontiac MI
639 PM EDT Sun Oct 3 2021
MIC125-032300-
/O.CON.KDTX.TO.W.0016.000000T0000Z-211003T2300Z/
Oakland MI-
639 PM EDT Sun Oct 3 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR
NORTHEASTERN OAKLAND COUNTY...
At 639 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Clarkston, or 8 miles west of Oxford, moving east at
15 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Oxford around 705 PM EDT.
Other locations impacted by this tornadic thunderstorm include
Lakeville, Lake Orion and Leonard.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4275 8347 4280 8349 4289 8318 4289 8310
4276 8310
TIME...MOT...LOC 2239Z 261DEG 15KT 4278 8341
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
DG545
WWUS53 KDTX 032243
SVSDTX
Severe Weather Statement
National Weather Service Detroit/Pontiac MI
643 PM EDT Sun Oct 3 2021
MIC125-032253-
/O.CAN.KDTX.TO.W.0016.000000T0000Z-211003T2300Z/
Oakland MI-
643 PM EDT Sun Oct 3 2021
...THE TORNADO WARNING FOR NORTHEASTERN OAKLAND COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled. However, heavy rain is
still possible with this thunderstorm.
LAT...LON 4275 8347 4280 8349 4289 8318 4289 8310
4276 8310
TIME...MOT...LOC 2241Z 256DEG 17KT 4279 8338
$$
DGThe office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 3, 9:41 AM EDT | Marine Dense Fog Advisory | DTX | 10 hr | |
| Oct 3, 6:18 PM EDT | Special Weather Statement | DTX | Oakland | 72 min |
| Oct 3, 7:29 PM EDT | Areal Flood Advisory | DTX | Oakland | 3 hr |
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.