Tornadoes · United States · Michigan · 2026
EF2 tornado, Saint Joseph County, Michigan, March 6, 2026
This EF2 tornado ran 12.4 miles across Saint Joseph County on March 6, 2026, touching down at 3:47 PM EST and reaching 450 yards wide. It killed nobody and injured 10.
Preliminary. This is NWS IWX's damage survey, filed in the Damage Assessment Toolkit as ThreeRivers. The rating, the path and the casualties are the survey's and can change while it is revised. The Storm Prediction Center compiles the official record of 2026 from these surveys and publishes it in the spring of 2027; this page moves to that tornado's permanent address when it does.
The rating scale
Tracks are drawn in the color of the rating. The Enhanced Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.
EF065 to 85 mph
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
EF186 to 110 mph
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
EF2111 to 135 mphthis tornado
Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.
EF3136 to 165 mph
Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.
EF4166 to 200 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
EF5over 200 mph
Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.
Unrated
The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.
The survey
- Rating, as surveyed
- EF2, preliminary
- Date
- March 6, 2026
- Touchdown
- 3:47 PM EST (20:47 UTC)
- Lifted
- 4:07 PM EST (21:07 UTC)
- On the ground
- 20 minutes
- Path length
- 12.4 miles (20.0 km)
- Path width
- 450 yards (411 m)
- Deaths
- 0
- Injuries
- 10
- County
- Saint Joseph County
- Touchdown point
- 41.913, -85.714
- Lift-off point
- 41.959, -85.485
- Highest wind the damage implies
- 130 mph
- Surveyed by
- NWS IWX
- The office's name for it
- ThreeRivers
- Survey last edited
- March 20, 2026
- Record number
- None yet. SPC numbers 2026 in the spring of 2027.
What the survey found
Another tornado from the same supercell that produced the
Edwardsburg tornado touched down west of Arthur L Jones Rd, north
of M60. The tornado quickly intensified and produced EF-2 damage with estimated wind speeds of 120-130 mph. Here, the tornado hit a Menards, removing the roof on the southwest and northwest portions of the building, along with an exterior wall collapse. One section of an nearby Uhaul facility was also completely destroyed. The
tornado continued through the heart of Three Rivers, producing EF-1 and isolated pockets of EF-2 damage to residences and businesses
(including the hospital). The tornado crossed the St. Joseph River, producing extensive damage to a lumber yard before uprooting many trees in a local cemetery. The tornado produced another pocket of
EF-2 damage to a double-wide mobile home and a brand new school
transportation facility. Multiple school trailers were tossed either across the street or inside the transportation facility itself which had its roof removed. As the tornado became cut off from the main supercell, it began to jog more eastward. It produced more damage north of Centreville, including a large barn and additional trees snapped.
Written by NWS IWX in the NWS Damage Assessment Toolkit. A survey is revised as better evidence arrives.
The damage survey
27 damage points were recorded along this path by NWS IWX, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF2. The highest wind the damage implies is 130 mph.
- Menards. NW wall collapsed inward, roof completely gone. Wind might have entered from roof removal on SW corner, lifted roof + wall system on NW corner, allowing wall to fall inward. Could not access SW side of building. photos suggest wall (but lower quality wall) collapsed with roof removed in that corner too
- Entire 1 sections of uhaul storage facility destroyed. Video shows entire structure lifted off the ground intact. Straight nailed from bottom sill plate
- Multiple large trees with trump snapped ~ halfway up
- Attached garage destroyed. Anchored but toe nailed
Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.
The warnings
9 minutes of warning. NWS IWX issued a tornado warning for this county at 20:38 UTC, 9 minutes before the tornado touched down, in force until 21:15 UTC.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 20:14 UTC | 20:45 UTC | Tornado Warning | IWX |
| 20:38 UTC | 21:15 UTC | Tornado Warning | IWX |
| 21:03 UTC | 21:30 UTC | Tornado Warning | IWX |
| 21:26 UTC | 21:46 UTC | Tornado Warning | IWX |
| 23:08 UTC | 02:35 UTC | Severe Thunderstorm Watch | IWX |
| 23:50 UTC | 00:15 UTC | Severe Thunderstorm Warning | IWX |
| 00:55 UTC | 01:06 UTC | Severe Thunderstorm Warning | IWX |
Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.
The forecast that day
The Storm Prediction Center had this point in a Marginal Risk, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 19:45 UTC.
SPC's Day 1 convective outlook as it stood when the tornado began, read at the touchdown point. The same archive is on the radar archive.
The air that afternoon
The radiosonde launches on either side of the tornado, from the nearest station that was launching then, drawn and analyzed the way Storm Lab does: the same diagram, the same parcel and shear definitions SPC's mesoanalysis uses.
Detroit, MI (KDTX), 12:00Z
8.8 hours before the tornado, 198 km from the path. March 6, 2026.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- -12155 J/kg
- Surface CAPE
- 0 J/kg
- Mixed-layer LCL
- 486 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 124 m²/s²
- 0-3 km storm-relative helicity
- 133 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 1.2 K/km
Detroit, MI (KDTX), 00:00Z
3.2 hours after it, 198 km from the path. March 7, 2026.
- Mixed-layer CAPE
- 5 J/kg
- Mixed-layer CIN
- -218 J/kg
- Surface CAPE
- 0 J/kg
- Mixed-layer LCL
- 709 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 415 m²/s²
- 0-3 km storm-relative helicity
- 470 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
- 0-3 km lapse rate
- 2.2 K/km
The surface observations
Three Rivers (HAI), 3 km from the path, in the two hours either side.
| Time (UTC) | Temp (°F) | Dew point (°F) | Wind | Gust (kt) | Pressure (mb) | Weather |
|---|---|---|---|---|---|---|
| 18:55 UTC | 60.8 | 59 | 170° 8 kt | 1014.6 | BR | |
| 19:15 UTC | 60.8 | 59 | 170° 6 kt | 1014.2 | BR | |
| 19:35 UTC | 62.6 | 60.8 | 160° 6 kt | 1013.9 | BR | |
| 19:55 UTC | 64.4 | 60.8 | 140° 6 kt | 1013.5 | BR | |
| 20:15 UTC | 64.4 | 62.6 | 160° 5 kt | 1013.2 | BR | |
| 20:35 UTC | 64.4 | 62.6 | 130° 3 kt | 1012.9 | BR |
From the Iowa Environmental Mesonet's archive of airport observations.
The radar
The Northern Indiana radar (KIWX), 65 km away, was scanning. The volume nearest the touchdown began at 20:46 UTC.
Open the radar archive at this moment, over the track
Reflectivity and velocity, decoded from the Level II archive in the browser. Volumes take a few seconds to open the first time.
What was reported nearby
Local storm reports within 60 km of the path, in the three hours either side.
| Time (UTC) | Report | Where | County | Remark |
|---|---|---|---|---|
| 19:09 UTC | TORNADO | 2 Wnw Edwardsburg | Cass, MI | *** 1 FATAL *** A disorganized circulation touched down northwest of the intersection of Runkle St and Conrad Rd, destroying an attached garage and damaging the front of a home. One fatality, a 12 year old boy, was confi |
| 19:47 UTC | TORNADO | 1 Ese Clear Lake | St. Joseph, MI | *** 10 INJ *** Another tornado from the same supercell that produced the Edwardsburg tornado touched down near Stoldt Rd and Coon Hollow Rd southwest of Three Rivers. The tornado quickly intensified and produced EF-2 dam |
| 20:11 UTC | TORNADO | 2 Wnw Edwardsburg | Cass, MI | Picture obtained of damage to a house in this location. Time estimated by radar. |
| 20:18 UTC | TORNADO | 2 Nnw Juno Lake | Cass, MI | Tree down and toppled center pivot in this location. Time estimated by radar. |
| 20:19 UTC | TORNADO | 2 Nw Eagle Lake | Cass, MI | Several trees snapped and damage to a home on Harris Street near M62. Photos on X. Time estimated via radar. |
| 20:20 UTC | HAIL 1 | Cassopolis | Cass, MI | Video shows hail up to a quarter in size in Cassopolis, Time estimated via radar. |
| 20:33 UTC | TORNADO | 4 Nne Sherwood | Branch, MI | *** 3 FATAL, 12 INJ *** The most intense and deadly tornado of the cyclic tornadic supercell touched down in northwest Branch county, northwest of Union Lake between Blossom Rd and Mendon Rd. This tornado was well photog |
| 20:46 UTC | TORNADO | 2 Sw Three Rivers | St. Joseph, MI | Video sent in showing a tornado hitting the Menards store and lifted at least a portion of the roof off on main building. Their storage unit nearby was also damaged by the tornado. Debris seen flying around the circulati |
| 20:48 UTC | TORNADO | 3 Wsw Three Rivers | St. Joseph, MI | Video relayed by broadcast media taken looking north at Three Rivers Waste Management facility. Tornado observed on the ground. Time estimated via radar. |
| 20:49 UTC | HAIL 1 | Three Rivers | St. Joseph, MI | Photo of hail up to a quarter in diameter in a photo taken on Marcellus Rd in Three Rivers. Time estimated via radar. |
| 20:50 UTC | TORNADO | Three Rivers | St. Joseph, MI | Numerous videos from storm chasers, trained spotters, broadcast media, and the public confirm a tornado in Three Rivers Michigan. Time estimated via radar. |
| 20:51 UTC | HAIL 1.75 | 1 Ese Fishers Lake | St. Joseph, MI | Photo on Facebook shows a hailstone measured to be 1.75 inches. Public reports it fell between Mendon and Three Rivers. Time estimated via radar. |
| 20:52 UTC | HAIL 1.5 | Mendon | St. Joseph, MI | Hail estimated to be between 1 to 1.5 inches in diameter seen in a photo on Facebook from Mendon, MI. Time estimated via radar. |
| 20:52 UTC | TORNADO | 1 Sw Three Rivers | St. Joseph, MI | Numerous reports of significant damage on the southwest side of Three Rivers. Storm chasers and Emergency Management confirmed multiple tornado touchdowns prior to the damage. |
| 20:58 UTC | HAIL 0.75 | 2 Se Moore Park | St. Joseph, MI | Report from mPING: Dime (0.75 in.). |
| 21:27 UTC | HAIL 1.25 | 1 Se Athens | Calhoun, MI | |
| 21:32 UTC | HAIL 0.5 | 4 Nw Union City | Calhoun, MI | Report from mPING: Half-inch (0.50 in.). |
| 21:38 UTC | TORNADO | 3 Nw Union City | Calhoun, MI | |
| 21:38 UTC | TORNADO | 1 W Union City | Branch, MI | Storm chaser video confirmed tornado near Union City. Location estimated based on radar. |
| 21:43 UTC | TSTM WND DMG | 2 Ssw Burlington | Calhoun, MI | ISOLATED AND LOW-END-SEVERE TREE AND STRUCTURE DAMAGE IN THIS AREA. |
| 21:54 UTC | TSTM WND DMG | 1 Nnw Tekonsha | Calhoun, MI | Torn down Exit Sign. |
| 21:58 UTC | TORNADO | 4 Ne Tekonsha | Calhoun, MI | An EF0 Tornado with top winds of 85 mph began just west of the intersection of P Drive South and 18 1/2 Mile Road. The damage path ended near N Drive South between 20 Mile Road and 21 1/2 Mile Road. Start time 4:58 pm an |
From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.
This ground now
The live radar over the trackEvery 2026 tornado in MichiganEvery tornado in Michigan since 1950Warnings in force in Michigan nowThe forecast where you are
The other tornadoes of March 6, 2026
15 more have been surveyed in the United States that day, so far.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| March 6 | 3:09 PM EST | EF1 | Cass, MI | 13.4 | 350 | 1 | ||
| March 6 | 4:33 PM EST | EF3 | Branch, MI | 4.5 | 500 | 3 | 12 | |
| March 6 | 4:58 PM EST | EF0 | Calhoun, MI | 2.5 | 125 | |||
| March 6 | 5:18 PM CST | EF1 | Creek, OK | 6.2 | 270 | |||
| March 6 | 6:24 PM CST | EF1 | Osage, OK | 6.0 | 600 | |||
| March 6 | 6:38 PM CST | EF0 | Okfuskee, OK | 5.0 | 160 | |||
| March 6 | 6:38 PM CST | EF1 | Tulsa, OK | 2.0 | 180 | |||
| March 6 | 6:55 PM CST | EF2 | Rogers, OK | 4.7 | 150 | |||
| March 6 | 7:17 PM CST | EF3 | Okmulgee, OK | 6.8 | 950 | 2 | 2 | |
| March 6 | 8:03 PM CST | EF0 | Wagoner, OK | 1.4 | 130 | |||
| March 6 | 8:05 PM CST | EF1 | Wagoner, OK | 1.6 | 300 | |||
| March 6 | 8:24 PM CST | Unrated | Rogers, OK | 1.4 | 150 | |||
| March 6 | 8:29 PM CST | EF1 | Rogers, OK | 6.6 | 350 | |||
| March 6 | 9:55 PM CST | Unrated | Delaware, OK | 0.5 | 100 | |||
| March 6 | 11:34 PM CST | EF0 | Johnson, KS to MO | 7.9 | 50 |
What this means
Ratings are the survey's, read off the damage rather than measured; the rating scale is above. A survey can be revised, so the rating, the path and the casualties can all still change.
Sources
NWS Damage Assessment Toolkit, the record the survey teams file from the damage, and NOAA Storm Prediction Center storm reports. Neither is the official database for 2026, which SPC publishes in the spring of 2027.