Alert archive / Michigan / Tornado Warnings in 2026

Tornado Warning 18, NWS Detroit, MI

September 2, 2026Saint Clair County, Michigan

NWS Detroit, MI issued this tornado warning at Sep 2, 2026, 7:00 PM EDT for Saint Clair County, Michigan. It was in force for 45 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
Sep 2, 2026, 7:00 PM EDT (23:00 UTC)
Expired
Sep 2, 2026, 7:45 PM EDT
In force
45 min
Issued by
NWS Detroit, MI
Area
Storm-based polygon
Tornado
Radar indicated
Hail
2.0 in

County Saint Clair County, MI

The radar

The Detroit radar (KDTX), 77 km from the middle of the area, began a volume at 22:59 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

TimeReportWhereRemark
Sep 2, 7:17 PM EDTHAIL 1.5Kimball, MI
Sep 2, 7:19 PM EDTTORNADO1 Ne Marysville, MIA brief EF-0 tornado tracked across portions of Marysville, Michigan in St. Clair County on the evening of September 2, 2026. Tree damage was sporadic along a narrow path between Gratiot Boulevard and Highway 29.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this tornado warning; the first came 19 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 11.0 hours before the alert went out and 73 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 2026-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2997 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 12:00Z on 2026-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.193958Sfc1 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
2997 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
814 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
-22 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.6

Open this sounding in Storm Lab

The text

As transmitted.

560 
WFUS53 KDTX 022300
TORDTX
MIC147-022345-
/O.NEW.KDTX.TO.W.0018.260902T2300Z-260902T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Detroit/Pontiac MI
700 PM EDT Wed Sep 2 2026

The National Weather Service in Detroit/Pontiac has issued a

* Tornado Warning for...
  Northeastern St. Clair County in southeastern Michigan...

* Until 745 PM EDT.

* At 700 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Emmett, or 8 miles east of Capac, moving east at
  50 mph.

  HAZARD...Tornado and hail up to two inches in diameter.

  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...
  Memphis around 705 PM EDT.
  Marysville around 710 PM EDT.
  Port Huron and St. Clair around 715 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Columbus, Riley Center, Rattle Run, Goodells, Smiths Creek, and
Wadhams.

This includes the following highways...
 I-94 between mile markers 260 and 273.
 I-69 between mile markers 180 and 199.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This Tornado Warning replaces the Severe Thunderstorm Warning issued
for the same area.

&&

LAT...LON 4296 8242 4293 8246 4289 8247 4285 8247
      4281 8248 4279 8247 4278 8248 4289 8274
      4290 8274 4290 8276 4294 8287 4307 8283
      4299 8242
TIME...MOT...LOC 2300Z 290DEG 42KT 4298 8276 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.00 IN

$$

SF
3 follow-up statements
980 
WWUS53 KDTX 022310
SVSDTX

Severe Weather Statement
National Weather Service Detroit/Pontiac MI
710 PM EDT Wed Sep 2 2026

MIC147-022345-
/O.CON.KDTX.TO.W.0018.000000T0000Z-260902T2345Z/
St. Clair MI-
710 PM EDT Wed Sep 2 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM EDT FOR
NORTHEASTERN ST. CLAIR COUNTY...

At 709 PM EDT, a severe thunderstorm capable of producing a tornado
was located 7 miles west of Marysville, or 10 miles west of Port
Huron, moving east at 45 mph.

HAZARD...Tornado and two inch hail.

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...
  Port Huron, St. Clair, and Marysville around 715 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Columbus, Rattle Run, Goodells, Smiths Creek, and Wadhams.

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 4293 8246 4289 8247 4285 8247 4281 8248
      4279 8247 4278 8248 4289 8274 4305 8271
      4299 8242 4296 8242
TIME...MOT...LOC 2309Z 289DEG 41KT 4294 8262 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.00 IN

$$

SF
552 
WWUS53 KDTX 022319
SVSDTX

Severe Weather Statement
National Weather Service Detroit/Pontiac MI
719 PM EDT Wed Sep 2 2026

MIC147-022345-
/O.CON.KDTX.TO.W.0018.000000T0000Z-260902T2345Z/
St. Clair MI-
719 PM EDT Wed Sep 2 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM EDT FOR EAST
CENTRAL ST. CLAIR COUNTY...

At 719 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Marysville, or near St. Clair, moving east at 45
mph.

HAZARD...Tornado and golf ball size hail.

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 tornadic thunderstorm will remain over mainly rural areas of
east central St. Clair County, including the following locations...
Smiths Creek and Wadhams.

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 4293 8246 4289 8247 4285 8247 4282 8248
      4288 8261 4302 8258 4299 8242 4296 8242
TIME...MOT...LOC 2319Z 288DEG 40KT 4291 8249 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN

$$

SF
239 
WWUS53 KDTX 022335
SVSDTX

Severe Weather Statement
National Weather Service Detroit/Pontiac MI
735 PM EDT Wed Sep 2 2026

MIC147-022345-
/O.EXP.KDTX.TO.W.0018.000000T0000Z-260902T2345Z/
St. Clair MI-
735 PM EDT Wed Sep 2 2026

...THE TORNADO WARNING FOR EAST CENTRAL ST. CLAIR COUNTY WILL EXPIRE
AT 745 PM EDT...

The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

&&

LAT...LON 4293 8246 4289 8247 4285 8247 4282 8248
      4288 8261 4302 8258 4299 8242 4296 8242
TIME...MOT...LOC 2335Z 290DEG 42KT 4285 8226 

$$

SF

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Detroit, MI wrote its last area forecast discussion before this tornado warning went out at Sep 2, 2:53 PM EDT, 4 hours 7 minutes earlier. Its key messages:

  • A Heat Advisory remains in effect through the evening with heat indices in the upper 90s to near 100 degrees.
  • There is a Slight Risk for severe weather this afternoon and evening. Damaging winds to 70 mph, hail to 1.5 inch, and an isolated tornado threat are all possible.
  • Additional shower and thunderstorm chances Thursday and Friday. Heavy rainfall is possible.
Area forecast discussion, Sep 2, 2:53 PM EDT, 4 hours 7 minutes before
Area Forecast Discussion
National Weather Service Detroit/Pontiac MI
253 PM EDT Wed Sep 2 2026

.KEY MESSAGES...

- A Heat Advisory remains in effect through the evening with heat
  indices in the upper 90s to near 100 degrees.

- There is a Slight Risk for severe weather this afternoon and
  evening. Damaging winds to 70 mph, hail to 1.5 inch, and an
  isolated tornado threat are all possible.

- Additional shower and thunderstorm chances Thursday and Friday.
  Heavy rainfall is possible.

&&

.DISCUSSION...

Hot and humid conditions continue through the evening, boosted by
low 70s dewpoints and highs in the low 90s. This has brought peak
heat indices across the Detroit Metro region into the low 100s which
will linger through early evening, which has also established a
robust pool of instability across all of SE Michigan. Question
remains how strong the cap is, which has limited convection from
fully blossoming in an otherwise favorable thermodynamic
environment. Observational cues show this cap eroding across the
Saginaw Valley region and other boundaries outside of the CWA, while
inbound moisture suggests further erosion this evening.

SWODY1 Slight Risk thus persists given the conditionally favorable
severe environment. Bulk parameters are impressive, as SPC
mesoanalysis reports SBCAPE up to 4000 J/kg and 0-6km bulk shear
over 40 knots due to a mid-level jet impulse aloft (h5 winds of 50-
55 knots). This should be supportive of organized multicellular
and/or supercellular structures as shear vectors are oriented ~45
degrees to the initiating boundaries. Low confidence however exists
in the initial development of storms and subsequent
coverage/evolution as there will be multiple weak forcing mechanisms
in play. Thus, a wide spectrum of outcomes expected across SE
Michigan, with the most bullish scenarios producing damaging winds
to 70 mph and hail over 1.5". These solutions carry higher
confidence for the Saginaw Valley/Thumb than the metro Detroit
region. While low level curvature is not prevalent attm, lake
breezes/ storm outflow could locally augment hodographs to support
an isolated tornado threat as well. Progressive storm motion
generally limits long duration rainfall concerns this evening,
although heavy downpours are likely.

Episodes of showers and thunderstorms then continue overnight
through the end of the work week, with low predictability in timing
and coverage. The unsettled pattern will be supported by a
baroclinic axis that lingers over SE Michigan over the next several
days, keeping plenty of instability around within a seasonably
hot/humid airmass. Highs Thursday again approach 90 degrees with
heat indices pushing well into the 90s to near 100 degree readings
in urban areas, depending on cloud cover/convective coverage. Much
of our shower/thunderstorm chances will be determined by upstream
MCS development and the propagation of these systems into SE
Michigan as ridging builds over central CONUS. Most likely cadence
for these storms (based on pattern recognition) is a wave of
nocturnal/early morning convection followed by reinvigoration of
storms later in the day with the peak heating cycle that repeats
until the front fully clears south of the state line this weekend.

The building ridge causes mid-level winds to veer from west to
northwest by end of week, drawing in cooler air that alters both low
and mid-level thermal profiles. Ultimately this causes the severe
threat to decrease Friday-the weekend, despite shower and storm
chances remaining in the forecast. A cooler pattern is expected this
weekend, with highs falling into the upper 70s.

&&

.MARINE...

Winds and waves remain below threshold criteria across the central
Great Lakes, aside from a few thunderstorms passing through a very
muggy air mass this afternoon and evening. Gradient winds will shift
from southwest to northwest once a weak cold front drops
southeastward through region. Convective chances decrease a bit
overnight within the wake of the slowing front, and winds could
briefly trend towards calm. A low confidence forecast persist
through the end of the week and early this weekend as a ridge over
central CONUS remains quasi-stationary. This offers several
additional opportunities for periods of showers and thunderstorms.
MWS and SMW headlines will continued to be used to address short-
term local watercraft concerns. No long-fused headline concerns
through the weekend, although areas of dense fog could become an
issue again late tonight into Thursday morning for portions of the
waterways.

&&

.HYDROLOGY...

First round of showers and thunderstorms is ongoing across the
Saginaw Valley and Thumb regions, with chances continuing overnight.
The hot and humid airmass will support heavy downpours within most
thunderstorms, although progressive nature of storms limits
duration. Any strong thunderstorm will have the potential to produce
a quick 1-2 inches of rain, which can lead to localized minor
flooding of roads and poor-drainage areas. There are currently no
indications of training storms, though more extensive flooding would
become a concern if a mature MCS develops or storms repeatedly
impact the same area.

&&

.PREV DISCUSSION...
Issued at 104 PM EDT Wed Sep 2 2026

AVIATION...

Frontal boundary sagging into southern lower MI offers chances for
thunderstorm development late this afternoon (north) into the
evening (south). Very low confidence forecast in potential
thunderstorm coverage particularly towards the southern terminals
where some degree of capping is in place. For these sites, have only
added Prob30 mentions to highlight the window of 'best' potential.
While there is higher confidence in the north for scattered
thunderstorms, whether these impact MBS/FNT or are focused more
towards the Thumb is the main sticking point. As such, maintained
inherited prob30s and will amend as needed once storms coalesce.
While the humid airmass offers a shot at some spotty overnight
convection, high-res models have trended drier tonight.

D21/DTW Convection...The best chance for thunderstorms is north of
DTW toward the northern fringe of D21 this afternoon, but
thunderstorm chances may develop this evening between 21-00Z.

DTW THRESHOLD PROBABILITIES...

* Low for ceiling 5000 ft or less this afternoon-evening.

* Low for thunderstorms this evening.

&&

.DTX WATCHES/WARNINGS/ADVISORIES...
MI...Heat Advisory until 8 PM EDT this evening for MIZ068>070-075-076-
     082-083.

Lake Huron...None.
Lake St Clair...None.
Michigan waters of Lake Erie...None.
&&

DISCUSSION...MV
MARINE.......KGK
HYDROLOGY....MV
AVIATION.....KDK

You can obtain your latest National Weather Service forecasts online
at www.weather.gov/detroit.
Hazardous weather outlook, Sep 2, 3:05 PM EDT, 3 hours 55 minutes before
Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
305 PM EDT Wed Sep 2 2026

MIZ047>049-053>055-060>063-031915-
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer-
St. Clair-
305 PM EDT Wed Sep 2 2026

This hazardous weather outlook is for southeast Michigan.

.DAY ONE...This Afternoon and Tonight

Heat indices in the mid to upper 90s are expected this afternoon.

There is a Slight Risk for severe weather this afternoon and
evening. Damaging winds to 70 mph, hail to 1.5 inch, and an isolated
tornado threat are all possible. Highly localized flooding is also
possible. Storm motion is generally northwest to southeast at 40 to
45 mph.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

A chance of strong thunderstorms continues for Thursday and Friday
as well with locally heavy rain possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon and evening.

LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-031915-
Lake St Clair-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM
off shore-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw
Bay-Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
Port Austin to Harbor Beach MI-Harbor Beach to Port Sanilac MI-
Port Sanilac to Port Huron MI-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
305 PM EDT Wed Sep 2 2026

This hazardous weather outlook is for portions of Lake Erie, Lake
Huron and Lake St Clair.

.DAY ONE...This Afternoon and Tonight

Heat indices in the mid to upper 90s are expected this afternoon.

There is a Slight Risk for severe weather this afternoon and
evening. Damaging winds to 70 mph, hail to 1.5 inch, and an isolated
tornado threat are all possible. Highly localized flooding is also
possible. Storm motion is generally northwest to southeast at 40 to
45 mph.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

A chance of strong thunderstorms continues for Thursday and Friday
as well with locally heavy rain possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon and evening.

MIZ068>070-075-076-082-083-031915-
Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
305 PM EDT Wed Sep 2 2026

This hazardous weather outlook is for southeast Michigan.

.DAY ONE...This Afternoon and Tonight

A Heat Advisory is in effect until 8PM EDT. Please see the heat
headline for additional details.

There is a Slight Risk for severe weather this afternoon and
evening. Damaging winds to 70 mph, hail to 1.5 inch, and an isolated
tornado threat are all possible. Highly localized flooding is also
possible. Storm motion is generally northwest to southeast at 40 to
45 mph.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

A chance of strong thunderstorms continues for Thursday and Friday
as well with locally heavy rain possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon and evening.

You can obtain your latest National Weather Service forecasts online
at www.weather.gov/detroit.

MV

In the hours before

Special weather statement, Sep 2, 2:39 PM EDT, 4 hours 21 minutes before
Special Weather Statement
National Weather Service Detroit/Pontiac MI
239 PM EDT Wed Sep 2 2026

MIZ047-048-021915-
Bay MI-Midland MI-
239 PM EDT Wed Sep 2 2026

...STRONG THUNDERSTORMS WILL IMPACT BAY AND EASTERN MIDLAND COUNTIES
THROUGH 315 PM EDT...

At 239 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Edenville to 6 miles south of Sanford.
Movement was east at 55 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Midland, Bay City, Auburn, Pinconning, Sanford, Kawkawlin,
Essexville, Bentley, Munger, Linwood, Mount Forest, Crump,
Poseyville, Willard, Averill, Gordonville, Bombay, and Bay City State
Recreation Area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4383 8427 4383 8417 4398 8415 4398 8405
      4391 8403 4392 8387 4374 8391 4370 8389
      4362 8368 4359 8367 4358 8370 4349 8370
      4348 8372 4349 8382 4352 8382 4353 8405
      4357 8405 4357 8417 4353 8417 4353 8450
TIME...MOT...LOC 1839Z 284DEG 47KT 4381 8429 4359 8439

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

SF
Special weather statement, Sep 2, 5:49 PM EDT, 1 hour 11 minutes before
Special Weather Statement
National Weather Service Detroit/Pontiac MI
549 PM EDT Wed Sep 2 2026

MIZ055-022230-
Sanilac MI-
549 PM EDT Wed Sep 2 2026

...STRONG THUNDERSTORMS WILL IMPACT SOUTHERN SANILAC COUNTY THROUGH
630 PM EDT...

At 549 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Sandusky to near Peck to Melvin. Movement
was east at 35 mph.

HAZARD...Winds in excess of 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Sandusky, Croswell, Marlette, Brown City, Lexington, Port Sanilac,
Peck, Carsonville, Applegate, Melvin, Watertown, Elmer, Forester,
Birch Beach, McGregor, Amador, Juhl, Valley Center, Lexington
Heights, and Roseburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4317 8251 4315 8300 4328 8300 4329 8312
      4332 8312 4333 8310 4340 8310 4354 8257
      4343 8253 4316 8250
TIME...MOT...LOC 2149Z 263DEG 31KT 4338 8289 4332 8286 4320 8288

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

KGK
Local storm report, Sep 2, 5:55 PM EDT, 1 hour 5 minutes before
Preliminary Local Storm Report
National Weather Service Detroit/Pontiac MI
555 PM EDT Wed Sep 02 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0430 PM     Marine Tstm Wind Lexington Harbor        43.27N  82.52W
09/02/2026  M47 mph          LHZ443             MI   C-Man Station

            Measured at Lexington Harbor.

&&

Event Number DTX2600676

KGK
Local storm report, Sep 2, 6:32 PM EDT, 28 minutes before
Preliminary Local Storm Report
National Weather Service Detroit/Pontiac MI
632 PM EDT Wed Sep 02 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0538 PM     Hail             Birch Run               43.25N  83.79W
09/02/2026  M2.00 inch       Saginaw            MI   Trained Spotter

            Multiple spotter and public reports with images of
            hailstones up to 2 inches in diamater across Birch Run.

&&

Event Number DTX2600677

KGK
Local storm report, Sep 2, 6:45 PM EDT, 15 minutes before
Preliminary Local Storm Report
National Weather Service Detroit/Pontiac MI
645 PM EDT Wed Sep 02 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0604 PM     Hail             Otter Lake              43.21N  83.46W
09/02/2026  M1.00 inch       Lapeer             MI   Trained Spotter

            Reported along 6600 block of Hart Lake Rd.

&&

Event Number DTX2600678

KGK
Local storm report, Sep 2, 6:56 PM EDT, 4 minutes before
Preliminary Local Storm Report
National Weather Service Detroit/Pontiac MI
656 PM EDT Wed Sep 02 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0400 PM     Tstm Wnd Dmg     Palms                   43.61N  82.77W
09/02/2026                   Sanilac            MI   911 Call Center

            Sanilac County Dispatch reported numerous calls related
            to tree damage and wires downed across the northern half
            of the county.

0405 PM     Tstm Wnd Dmg     Richmondville           43.57N  82.60W
09/02/2026                   Sanilac            MI   Emergency Mngr

            EM reported significant damage over and west of
            Richmondville.

&&

Event Number DTX2600679
Event Number DTX2600680

KGK

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 2:08 AM EDTHeat AdvisoryDTXLenawee, Livingston, Macomb, Monroe, Oakland, Washtenaw and 1 more18 hr
Sep 2, 5:21 AM EDTSpecial Weather StatementDTXSaginaw54 min
Sep 2, 5:30 AM EDTSpecial Weather StatementDTXGenesee60 min
Sep 2, 6:04 AM EDTSevere Thunderstorm WarningDTXGenesee22 min
Sep 2, 1:16 PM EDTSpecial Weather StatementDTXHuron29 min
Sep 2, 1:34 PM EDTSpecial Weather StatementDTXMacomb11 min
Sep 2, 2:39 PM EDTSpecial Weather StatementDTXBay, Midland36 min
Sep 2, 2:47 PM EDTSpecial Marine WarningDTX53 min
Sep 2, 3:11 PM EDTSevere Thunderstorm WarningDTXHuron, Sanilac, Tuscola79 min
Sep 2, 3:28 PM EDTSpecial Marine WarningDTX89 min
Sep 2, 5:20 PM EDTSevere Thunderstorm WarningDTXGenesee, Saginaw, Tuscola55 min
Sep 2, 5:49 PM EDTSpecial Weather StatementDTXSanilac41 min
Sep 2, 6:01 PM EDTSevere Thunderstorm WarningDTXLapeer, Sanilac, Tuscola59 min
Sep 2, 6:20 PM EDTSpecial Marine WarningDTX85 min
Sep 2, 6:22 PM EDTSevere Thunderstorm WarningDTXLapeer, Saint Clair73 min
Sep 2, 7:10 PM EDTSpecial Marine WarningDTX35 min
Sep 2, 7:45 PM EDTSpecial Weather StatementDTXSanilac30 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.