Tornado Warning 10, NWS Detroit, MI

732 
WWUS53 KDTX 092037
SVSDTX

Severe Weather Statement
National Weather Service Detroit/Pontiac MI
437 PM EDT Wed Jul 9 2025

MIC063-092100-
/O.CON.KDTX.TO.W.0010.000000T0000Z-250709T2100Z/
Huron MI-
437 PM EDT Wed Jul 9 2025

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM EDT FOR
SOUTHEASTERN HURON COUNTY...

At 436 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Forestville, moving east at 10 mph.

HAZARD...Tornado.

SOURCE...Broadcast Media reported a funnel cloud.

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
southeastern Huron County, including the following locations... Ruth,
White Rock, and Helena.

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 4369 8278 4380 8277 4383 8259 4382 8259
      4369 8257
TIME...MOT...LOC 2036Z 290DEG 8KT 4373 8265 

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

$$

AA

025 
WWUS53 KDTX 092050
SVSDTX

Severe Weather Statement
National Weather Service Detroit/Pontiac MI
450 PM EDT Wed Jul 9 2025

MIC063-092100-
/O.CON.KDTX.TO.W.0010.000000T0000Z-250709T2100Z/
Huron MI-
450 PM EDT Wed Jul 9 2025

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM EDT FOR
SOUTHEASTERN HURON COUNTY...

At 449 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Forestville, moving east at 5 mph.

HAZARD...TORNADO.

SOURCE...Broadcast media reported a funnel cloud.

IMPACT...Expect damage to mobile homes, roofs, and vehicles.

This tornadic thunderstorm will remain over mainly rural areas of
southeastern Huron County, including the following locations... Ruth,
White Rock, and Helena.

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 4369 8275 4380 8273 4383 8259 4369 8257
TIME...MOT...LOC 2049Z 279DEG 5KT 4371 8262 

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

$$

AA

280 
WWUS53 KDTX 092100
SVSDTX

Severe Weather Statement
National Weather Service Detroit/Pontiac MI
500 PM EDT Wed Jul 9 2025

MIC063-092110-
/O.EXP.KDTX.TO.W.0010.000000T0000Z-250709T2100Z/
Huron MI-
500 PM EDT Wed Jul 9 2025

...THE TORNADO WARNING FOR SOUTHEASTERN HURON COUNTY HAS EXPIRED...

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 allowed to expire. However, heavy 
rain is still possible with this thunderstorm.

&&

LAT...LON 4369 8275 4380 8273 4383 8259 4369 8257
TIME...MOT...LOC 2100Z 277DEG 13KT 4371 8257 

$$

AA

Area Forecast Discussion
National Weather Service Detroit/Pontiac MI
358 PM EDT Wed Jul 9 2025

.KEY MESSAGES...

- Numerous showers and thunderstorms will impact southeast Michigan
  between now and 9 PM.

- Strongest storms will be capable of isolated wind gusts to 60 mph
  and small hail.

- Isolated flash flooding is possible with these storms, mainly for
  urban areas where 2 to 3 inches of rain already fell this morning.

- Drier conditions are expected Thursday with increasing shower and
  thunderstorm chances into the weekend.

- Warmer conditions this weekend with highs near 90 degrees on
  Saturday

&&

.DISCUSSION...

A weak cold front extends from roughly Saginaw Bay to South Bend and
has been the triggering mechanism for convection early this
afternoon. While SPC mesoanalysis now shows a broad plume of ~1500
J/kg MLCAPE across all of SE Michigan, there is still a 3-4 degree
difference in surface temperatures where clouds/showers lingered
this morning (south of I-96). Cumulus development is still
underperforming in these areas, but has initiated nonetheless
indicating that surface conditions are likely destabilizing. If any
storms can sustain an organized cold pool into this area, severe
weather will be possible. Further north, boundary layer conditions
are still more primed for surface-based convection. Lack of mid-
level flow and resultant shear profiles supports pulse to
disorganized multicellular behavior with potential for precipitation
loaded wind gusts of 40-60 mph. The higher end gusts will likely be
isolated in nature. Slow storm motion of 15-20 knots and the high
moisture environment will also be supportive of heavy rainfall, to
be discussed in the hydrology section.

Drier conditions are expected for Thursday as low amplitude ridging
builds in aloft. A diurnally-driven stray shower or two is not out
of the question (e.g. 12z HRRR) if east flow can draw in a boost of
Lake Huron moisture into the boundary layer. Otherwise, the strong
subsidence inversion keeps the environment capped.  The thermal
trough holds firmly in place across the northeast quadrant of CONUS,
keeping temperatures seasonable in the low to mid 80s.

Unsettled weather then returns Friday into this weekend, beginning
with a compact vorticity maximum that barrels across lower Michigan
on Friday. This wave slightly outpaces the warm front that lifts
into the area overnight Friday, which will be followed by a strong
Pacific wave that brings steeper mid-level lapse rates to the region
through the weekend. For daytime Friday, this equates to weak
instability profiles with light column flow to support general
shower and storm chances during peak heating. PoPs then increase
through the weekend as low pressure deepens over central Ontario,
driving a pre-frontal trough through the area during peak heating
Saturday followed by a cold front on Sunday. The stronger forcing
will capitalize on warm sector instability to generate more
organized thunderstorm potential alongside comparatively stronger
mid-level flow (30-35 knots). Nocturnal to morning timing of the
frontal passage looks to bring temperatures back toward the mid-80s
by Sunday, while isentropic downglide supports increasingly stable
conditions throughout the day. Ridging builds back into the region
early next week, with H5 mean ensemble heights building to 591 dam
and temperatures warming back into the upper 80s.

&&

.MARINE...

The ongoing passage of a cold front and initiation along lake
breezes and storm outflows will produce scattered to numerous
showers and thunderstorms throughout the afternoon and evening, with
the best coverage expected across the Saginaw Bay into southern Lake
Huron, Lake St. Clair, and Lake Erie. The stronger thunderstorms
will be capable of producing wind gusts at or above 35 knots, small
hail, and heavy downpours. Thunderstorm coverage is expected to wane
late tonight leading into early tomorrow morning. Otherwise outside
of thunderstorm coverage, the pressure gradient remains weak with a
building high pressure reinforcing this weak gradient through late
into the week. This brings calm to light winds through Friday. This
also bring dry weather tomorrow and Friday, with active weather
returning by the weekend.

&&

.HYDROLOGY...

Numerous thunderstorms have developed over western lower Michigan
and the Saginaw Valley/Thumb regions and are moving east to
southeast at around 15 to 25 mph. These will track across the area
between now and 9 pm. The 12z KDTX sounding sampled a moisture rich
environment with PWAT values in the 90th percentile (1.6 inches)
along with weak westerly column flow. Several localized spots
received 2 to 3 inches of rainfall this morning, with some of that
rain occurring in the Detroit metropolitan area. Additional rainfall
totals of 1 to 2 inches, especially in urban areas, may contribute
to flash flooding this evening. This would be most likely if a west
to east oriented line of training thunderstorms developed, which
would be capable of even higher localized totals.

&&

.PREV DISCUSSION...
Issued at 156 PM EDT Wed Jul 9 2025

AVIATION...

Just as the early day convection has pushed east of the area, the
next round of storms has already initiated. Areas north of M59
stayed fairly clear today leading to increased instability and thus
stronger storms will be possible this afternoon across MBS and FNT.
Storms have initiate across western MI and are already impacting
MBS as of 18Z and scattered storms will continue through the next
few hours eventually drifting southward across FNT and PTK. Storms
have also initiated just north of the state line and will continue to
advance toward the Detroit taf sites but are a few hours away. Most
of the convection should end or push east between 8-10pm. Attention
then turns toward fog development tonight as moisture left behind
from the storms, elevated dewpoints, and clearing skies lead to
favorable conditions for fog.

For DTW/D21 Convection...Potential remains for period of
thunderstorms this afternoon into the evening ending around 8-10pm.
Gusty thunderstorm outflow winds will be possible with any stronger,
more organized clusters of storms along with brief heavy downpours.

THRESHOLD PROBABILITIES...

* Medium for thunderstorms this afternoon and evening.

* Low for cigs aob 5000 ft this afternoon through tonight.

* Low for ceilings/visibilities to drop below 200ft or 1/2SM
  tonight.

&&

.DTX WATCHES/WARNINGS/ADVISORIES...
MI...None.
Lake Huron...None.
Lake St Clair...None.
Michigan waters of Lake Erie...None.
&&

DISCUSSION...MV
MARINE.......AM
HYDROLOGY....MV
AVIATION.....DRK

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

Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
408 AM EDT Wed Jul 9 2025

MIZ047>049-053>055-060>063-068>070-075-076-082-083-100815-
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer-
St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
408 AM EDT Wed Jul 9 2025

This hazardous weather outlook is for southeast Michigan.

.DAY ONE...Today and Tonight

Scattered thunderstorms are expected today, with increasing coverage
during the afternoon and evening. Storms will be pulse to multicell
mode, tracking east at around 15 to 25 mph. The strongest storms will
be capable of producing isolated wind gusts of 50 to 60 mph, small
hail, and torrential downpours leading to localized flooding.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

There is a chance of thunderstorms on Saturday, some of which may be
strong, as a cold front moves through the region.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated today and tonight.

LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-100815-
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-
408 AM EDT Wed Jul 9 2025

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

.DAY ONE...Today and Tonight

Scattered thunderstorms are expected today, with increasing coverage
during the afternoon and evening. Storms will be pulse to multicell
mode, tracking east at around 10 to 20 kt. The strongest storms will
be capable of producing isolated wind gusts in excess of 40 kt and
small hail.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

There is a chance of thunderstorms on Saturday, some of which may be
strong, as a cold front moves through the region.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated today and tonight.

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

TF

Special Weather Statement
National Weather Service Detroit/Pontiac MI
157 PM EDT Wed Jul 9 2025

MIZ082-091830-
Lenawee MI-
157 PM EDT Wed Jul 9 2025

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN LENAWEE COUNTY
THROUGH 230 PM EDT...

At 157 PM EDT, Doppler radar was tracking a strong thunderstorm over
Addison, or 11 miles north of Hudson, moving northeast at 20 mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

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

This strong thunderstorm will be near...
  Cement City around 200 PM EDT.

Other locations impacted by this storm include Cambridge Junction and
Manitou Beach-Devils Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4207 8413 4191 8436 4207 8436
TIME...MOT...LOC 1757Z 238DEG 16KT 4202 8436

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

Mann

Special Weather Statement
National Weather Service Detroit/Pontiac MI
202 PM EDT Wed Jul 9 2025

MIZ053-091900-
Saginaw MI-
202 PM EDT Wed Jul 9 2025

...A STRONG THUNDERSTORM WILL IMPACT SAGINAW COUNTY THROUGH 300 PM
EDT...

At 201 PM EDT, Doppler radar was tracking a strong thunderstorm near
Merrill, or 9 miles northwest of St. Charles, moving east at 20 mph.

HAZARD...Winds in excess of 30 mph.

SOURCE...Radar indicated.

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

This strong thunderstorm will be near...
  Saginaw around 225 PM EDT.
  Bridgeport around 235 PM EDT.

Other locations impacted by this storm include Brant, Nelson,
Carrollton, Garfield, Arthur, Burt, Buena Vista Township, Gera,
Indiantown, and Swan Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4348 8432 4348 8417 4352 8417 4352 8382
      4348 8382 4348 8370 4322 8370 4322 8382
      4327 8437 4330 8437
TIME...MOT...LOC 1801Z 286DEG 19KT 4342 8424

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

Mann

Special Weather Statement
National Weather Service Detroit/Pontiac MI
313 PM EDT Wed Jul 9 2025

MIZ053-054-060-061-092015-
Shiawassee MI-Tuscola MI-Genesee MI-Saginaw MI-
313 PM EDT Wed Jul 9 2025

...STRONG THUNDERSTORMS WILL IMPACT SOUTHERN TUSCOLA...SOUTHERN
SAGINAW...NORTHERN SHIAWASSEE AND NORTHWESTERN GENESEE COUNTIES
THROUGH 415 PM EDT...

At 313 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from Reese to near Montrose to near Marion Springs.
Movement was southeast at 15 mph.

HAZARD...Winds in excess of 30 mph.

SOURCE...Radar indicated.

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

Locations impacted include...
Flint, Saginaw, Owosso, Flushing, Frankenmuth, Vassar, Clio,
Chesaning, St. Charles, Birch Run, Reese, Millington, Mayville, New
Lothrop, Mount Morris, Montrose, Otisville, Otter Lake, Oakley, and
Henderson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4324 8437 4336 8401 4348 8381 4348 8370
      4355 8369 4342 8323 4307 8364 4299 8436
TIME...MOT...LOC 1913Z 296DEG 12KT 4344 8368 4324 8392 4319 8433

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

DRK

Special Weather Statement
National Weather Service Detroit/Pontiac MI
405 PM EDT Wed Jul 9 2025

MIZ049-092100-
Huron MI-
405 PM EDT Wed Jul 9 2025

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN HURON COUNTY
THROUGH 500 PM EDT...

At 405 PM EDT, Doppler radar was tracking a strong thunderstorm near
Harbor Beach, moving east at 10 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...
Harbor Beach, Ubly, Verona, Helena, Ruth, Parisville, White Rock, and
Rapson.

People attending Harbor Beach  should seek safe shelter immediately!

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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

This storm 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 4368 8297 4388 8294 4393 8266 4384 8259
      4369 8257
TIME...MOT...LOC 2005Z 280DEG 7KT 4378 8271

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

AA