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Elev 594 ft, 46.84 °N, 89.42 °W

Ontonagon, MI Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: Ontonagon, MI
Elevation: 594ft
Nearby Weather Stations

Active Weather Alerts

Lakeshore Flood Advisory
Issued: 9:22 AM Dec. 29, 2025 – National Weather Service
...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST
/6 PM CST/ THIS EVENING...

* WHAT...Minor lakeshore flooding.

* WHERE...Ontonagon, Northern Houghton and Gogebic Counties.

* WHEN...Until 7 PM EST /6 PM CST/ this evening.

* IMPACTS...Some water on low lying roads and property along the
lakeshore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Residents on or near the shore should take appropriate action to
protect property from rising water levels.

&&

Storm Warning
Issued: 9:17 AM Dec. 29, 2025 – National Weather Service
...STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 10 PM EST
THIS EVENING...

* WHAT...For the Storm Warning, north winds 30 to 40 kt with
gusts up to 55 kt and waves 15 to 20 ft occurring. For the
Heavy Freezing Spray Warning, heavy freezing spray at a rate
of 2 cm per hour or greater occurring, and may rapidly
accumulate on vessels.

* WHERE...Ontonagon to Upper Entrance of Portage Canal MI, Upper
Entrance of Portage Canal to Eagle River MI, Eagle River to
Manitou Island 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 and Lake Superior
from Upper Entrance to Portage Canal to Manitou Island MI 5NM
off shore to the US/Canadian Border.

* WHEN...Until 10 PM EST this evening.

* IMPACTS...Operating a vessel in heavy freezing spray is
hazardous. Freezing spray may render mechanical and electronic
components inoperative. Rapid ice accretion on decks and
superstructures may result in a catastrophic loss of
stability. Storm force winds and hazardous waves will capsize
or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

Heavy Freezing Spray Warning
Issued: 9:17 AM Dec. 29, 2025 – National Weather Service
...STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 10 PM EST
THIS EVENING...

* WHAT...For the Storm Warning, north winds 30 to 40 kt with
gusts up to 55 kt and waves 15 to 20 ft occurring. For the
Heavy Freezing Spray Warning, heavy freezing spray at a rate
of 2 cm per hour or greater occurring, and may rapidly
accumulate on vessels.

* WHERE...Ontonagon to Upper Entrance of Portage Canal MI, Upper
Entrance of Portage Canal to Eagle River MI, Eagle River to
Manitou Island 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 and Lake Superior
from Upper Entrance to Portage Canal to Manitou Island MI 5NM
off shore to the US/Canadian Border.

* WHEN...Until 10 PM EST this evening.

* IMPACTS...Operating a vessel in heavy freezing spray is
hazardous. Freezing spray may render mechanical and electronic
components inoperative. Rapid ice accretion on decks and
superstructures may result in a catastrophic loss of
stability. Storm force winds and hazardous waves will capsize
or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

Blizzard Warning
Issued: 9:10 AM Dec. 29, 2025 – National Weather Service
...BLIZZARD WARNING NOW IN EFFECT UNTIL 1 PM EST /NOON CST/ THIS
AFTERNOON...

* WHAT...Blizzard conditions. Additional snow accumulations between
3 and 7 inches. Winds gusting as high as 50 mph.

* WHERE...Gogebic and Ontonagon Counties.

* WHEN...Until 1 PM EST /noon CST/ this afternoon.

* IMPACTS...Travel could be very difficult to impossible. Widespread
blowing snow will significantly reduce visibility. The hazardous
conditions will impact the Monday morning commute. Gusty winds
could bring down tree branches and result in power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must travel,
have a winter survival kit with you. If you get stranded, stay with
your vehicle.

&&

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