Alert archive / Michigan / Tornado Warnings in 2026

Tornado Warning 21, NWS Detroit, MI

September 3, 2026Washtenaw County, Michigan

NWS Detroit, MI issued this tornado warning at Sep 3, 2026, 3:32 PM EDT for Washtenaw County, Michigan. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 3, 2026, 3:32 PM EDT (19:32 UTC)
Expired
Sep 3, 2026, 4:05 PM EDT
In force
33 min
Issued by
NWS Detroit, MI
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Washtenaw County, MI

The radar

The Detroit radar (KDTX), 47 km from the middle of the area, began a volume at 19:35 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Sep 3, 1:59 PM EDTSevere Thunderstorm WatchSPC3 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 7.5 hours before the alert went out and 51 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.

Skew-T log-pSkew-T log-p diagram, Detroit, MI at 12:00Z on 2026-09-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1125 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 12:00Z on 2026-09-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1125 J/kg
Mixed-layer CIN
-108 J/kg
Mixed-layer LCL
1071 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.6

Open this sounding in Storm Lab

The text

As transmitted.

785 
WFUS53 KDTX 031932
TORDTX
MIC161-032015-
/O.NEW.KDTX.TO.W.0021.260903T1932Z-260903T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Detroit/Pontiac MI
332 PM EDT Thu Sep 3 2026

The National Weather Service in Detroit/Pontiac has issued a

* Tornado Warning for...
  Northeastern Washtenaw County in southeastern Michigan...

* Until 415 PM EDT.

* At 332 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Hamburg, or near Pinckney, moving southeast at 60
  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...
  Ann Arbor, Dexter, Dixboro, and Whitmore Lake around 335 PM EDT.
  Ypsilanti and Salem around 340 PM EDT.
  Willis around 350 PM EDT.

Other locations impacted by this tornadic thunderstorm include Hudson
Mills, Delhi Mills, Barton Hills, and Hudson Mills Metropark.

This includes the following highways...
 I-94 between mile markers 171 and 173, and between mile markers 177
and 187.
 M-14 between mile markers 1 and 15.
 US-23 between mile markers 34 and 52.

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.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4242 8400 4244 8356 4209 8354
TIME...MOT...LOC 1932Z 314DEG 51KT 4243 8384 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

KDK
2 follow-up statements
844 
WWUS53 KDTX 031943
SVSDTX

Severe Weather Statement
National Weather Service Detroit/Pontiac MI
343 PM EDT Thu Sep 3 2026

MIC161-032015-
/O.CON.KDTX.TO.W.0021.000000T0000Z-260903T2015Z/
Washtenaw MI-
343 PM EDT Thu Sep 3 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM EDT FOR
NORTHEASTERN WASHTENAW COUNTY...

At 343 PM EDT, a severe thunderstorm capable of producing a tornado 
was located near Dixboro, or near Ann Arbor, moving southeast at 
45 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...
  Ann Arbor and Ypsilanti around 350 PM EDT.
  Willis around 355 PM EDT.

Other locations impacted by this tornadic thunderstorm include Barton
Hills.

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.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4242 8380 4244 8356 4209 8354 4228 8381
TIME...MOT...LOC 1943Z 306DEG 45KT 4235 8369 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

MR
978 
WWUS53 KDTX 032005
SVSDTX

Severe Weather Statement
National Weather Service Detroit/Pontiac MI
405 PM EDT Thu Sep 3 2026

MIC161-032014-
/O.CAN.KDTX.TO.W.0021.000000T0000Z-260903T2015Z/
Washtenaw MI-
405 PM EDT Thu Sep 3 2026

...THE TORNADO WARNING FOR NORTHEASTERN WASHTENAW COUNTY IS
CANCELLED...

The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 700 PM EDT for
southeastern Michigan.

&&

LAT...LON 4242 8380 4244 8356 4209 8354 4228 8381
TIME...MOT...LOC 2003Z 314DEG 51KT 4213 8339 

$$

MR

The office that day

Everything else NWS Detroit, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 2, 8:20 PM EDTSpecial Weather StatementDTXSaint Clair25 min
Sep 2, 10:26 PM EDTSevere Thunderstorm WarningDTXLivingston, Oakland79 min
Sep 2, 10:32 PM EDTSpecial Marine WarningDTX88 min
Sep 2, 10:47 PM EDTSevere Thunderstorm Warning Considerable damage threatDTXWashtenaw, Wayne73 min
Sep 2, 10:50 PM EDTSevere Thunderstorm WarningDTXMacomb55 min
Sep 2, 11:15 PM EDTSpecial Marine WarningDTX51 min
Sep 2, 11:27 PM EDTAreal Flood WarningDTXMacomb, Oakland, Wayne6 hr
Sep 3, 12:00 AM EDTSevere Thunderstorm WarningDTXWayne49 min
Sep 3, 2:12 AM EDTSpecial Weather StatementDTXMacomb63 min
Sep 3, 2:18 AM EDTSpecial Weather StatementDTXLivingston57 min
Sep 3, 2:30 AM EDTSevere Thunderstorm WarningDTXMacomb, Wayne35 min
Sep 3, 2:31 AM EDTSpecial Marine WarningDTX34 min
Sep 3, 3:05 AM EDTSpecial Weather StatementDTXWayne55 min
Sep 3, 3:40 AM EDTSpecial Marine WarningDTX20 min
Sep 3, 9:59 AM EDTSpecial Weather StatementDTXGenesee, Livingston, Shiawassee61 min
Sep 3, 10:03 AM EDTSpecial Weather StatementDTXWashtenaw57 min
Sep 3, 10:39 AM EDTSevere Thunderstorm WarningDTXGenesee, Oakland, Shiawassee66 min
Sep 3, 10:50 AM EDTSevere Thunderstorm Warning Considerable damage threatDTXLivingston, Oakland, Wayne55 min
Sep 3, 11:07 AM EDTSevere Thunderstorm Warning Considerable damage threatDTXOakland41 min
Sep 3, 11:18 AM EDTSpecial Marine WarningDTX87 min
Sep 3, 11:23 AM EDTSevere Thunderstorm Warning Considerable damage threatDTXMacomb, Saint Clair67 min
Sep 3, 11:56 AM EDTSevere Thunderstorm WarningDTXOakland34 min
Sep 3, 1:34 PM EDTSevere Thunderstorm WarningDTXMidland, Saginaw71 min
Sep 3, 1:48 PM EDTTornado WarningDTXMidland, Saginaw42 min
Sep 3, 1:51 PM EDTSpecial Weather StatementDTXGenesee39 min
Sep 3, 1:58 PM EDTSevere Thunderstorm WarningDTXGenesee62 min
Sep 3, 2:11 PM EDTSevere Thunderstorm WarningDTXShiawassee64 min
Sep 3, 2:16 PM EDTSevere Thunderstorm WarningDTXLapeer59 min
Sep 3, 2:26 PM EDTSpecial Marine WarningDTX2 hr
Sep 3, 2:29 PM EDTSevere Thunderstorm WarningDTXSaginaw, Tuscola32 min
Sep 3, 2:44 PM EDTSevere Thunderstorm WarningDTXGenesee, Livingston, Oakland48 min
Sep 3, 2:48 PM EDTSevere Thunderstorm WarningDTXSaint Clair, Sanilac57 min
Sep 3, 3:05 PM EDTTornado WarningDTXLivingston40 min
Sep 3, 3:21 PM EDTSevere Thunderstorm WarningDTXOakland54 min
Sep 3, 3:26 PM EDTSevere Thunderstorm WarningDTXWashtenaw47 min
Sep 3, 3:36 PM EDTTornado WarningDTXOakland39 min
Sep 3, 3:43 PM EDTSpecial Marine WarningDTX82 min
Sep 3, 3:44 PM EDTSevere Thunderstorm WarningDTXWayne49 min
Sep 3, 3:48 PM EDTTornado WarningDTXWayne42 min
Sep 3, 3:50 PM EDTSevere Thunderstorm WarningDTXMonroe43 min
Sep 3, 3:53 PM EDTTornado WarningDTXLenawee33 min
Sep 3, 4:00 PM EDTTornado WarningDTXMacomb31 min
Sep 3, 4:12 PM EDTTornado WarningDTXMonroe26 min

Nearby

Tornado Warnings in Michigan, 2026Every tornado warning in 2026Tornadoes in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.