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Elev 180 ft, 46.87 °N, 89.32 °W

Ontonagon, MI Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: Ontonagon, MI
Elevation: 180ft
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Active Weather Alerts

Severe Thunderstorm Warning
Issued: 12:32 PM Jul. 27, 2026 – National Weather Service
The National Weather Service in Marquette has issued a

* Severe Thunderstorm Warning for...
Central Ontonagon County in western Upper Michigan...

* Until 930 AM EDT.

* At 832 AM EDT, a severe thunderstorm was located near Bergland, or
10 miles southeast of Porcupine Mountains State Park, moving east
at 30 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.

* Locations impacted include...
Porcupine Mountains State Park, Rockland, Bruce Crossing, Mass
City, Norwich, White Pine, Trout Creek, and Victoria Dam.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&


HAIL THREAT...RADAR INDICATED;
MAX HAIL SIZE...1.00 IN;
WIND THREAT...RADAR INDICATED;
MAX WIND GUST...60 MPH

Severe Thunderstorm Warning
Issued: 12:26 PM Jul. 27, 2026 – National Weather Service
The National Weather Service in Marquette has issued a

* Severe Thunderstorm Warning for...
Central Gogebic County in western Upper Michigan...
Southwestern Ontonagon County in western Upper Michigan...

* Until 930 AM EDT/830 AM CDT/.

* At 826 AM EDT/726 AM CDT/, a severe thunderstorm was located 7
miles north of Wakefield, or 12 miles northeast of Ironwood, moving
east at 40 mph.

HAZARD...Half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

* Locations impacted include...
Bessemer, Wakefield, Bergland, Northern Lake Gogebic, Thomaston,
Clark Lake, Lake Gogebic State Park, Ewen, Black River Harbor, and
Merriweather.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&


HAIL THREAT...RADAR INDICATED;
MAX HAIL SIZE...1.25 IN;
WIND THREAT...RADAR INDICATED;
MAX WIND GUST...<50 MPH

Special Marine Warning
Issued: 11:53 AM Jul. 27, 2026 – National Weather Service
The National Weather Service in Marquette has issued a

* Special Marine Warning for...
Black River To Ontonagon MI...
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park...
Ontonagon to Upper Entrance of Portage Canal MI...

* Until 900 AM EDT.

* At 752 AM EDT, a severe thunderstorm was located 11 nm southwest of
The Western Lake Superior Buoy, moving southeast at 70 knots.

HAZARD...Wind gusts to 40 knots and large hail.

SOURCE...Radar.

IMPACT...Small craft could be damaged in briefly higher winds and
suddenly higher waves. Large hail could result in
structural damage.

* The severe thunderstorm will remain over mainly open waters.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor until hazardous weather passes.

&&


HAIL...>.75IN;
WIND...40KTS

Severe Thunderstorm Watch
Issued: 6:31 AM Jul. 27, 2026 – National Weather Service
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
518 IN EFFECT UNTIL 10 AM EDT /9 AM CDT/ THIS MORNING FOR THE
FOLLOWING AREAS

IN MICHIGAN THIS WATCH INCLUDES 2 COUNTIES

IN WESTERN UPPER MICHIGAN

GOGEBIC               ONTONAGON

THIS INCLUDES THE CITIES OF BESSEMER, IRONWOOD, ONTONAGON,
AND WAKEFIELD.

Severe Thunderstorm Watch
Issued: 6:31 AM Jul. 27, 2026 – National Weather Service
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
518 IN EFFECT UNTIL 10 AM EDT /9 AM CDT/ THIS MORNING FOR THE
FOLLOWING AREAS

THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS

SAXON HARBOR WI TO BLACK RIVER MI
BLACK RIVER TO ONTONAGON MI
ONTONAGON TO UPPER ENTRANCE OF PORTAGE CANAL MI
LAKE SUPERIOR FROM SAXON HARBOR WI TO UPPER ENTRANCE TO PORTAGE
CANAL MI 5NM OFF SHORE TO THE US/CANADIAN BORDER INCLUDING ISLE
ROYALE NATIONAL PARK

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