Keweenaw County
Heavy Freezing Spray Warning issued January 19 at 3:39PM EST until January 20 at 10:00PM EST by NWS Marquette MI
* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with gusts up to 35 kt and waves 8 to 12 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...Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore. * WHEN...For the Gale Warning, until 7 PM EST this evening. For the Heavy Freezing Spray Warning, until 10 PM EST Tuesday. * 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. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.
Heavy Freezing Spray Warning issued January 19 at 3:39PM EST until January 20 at 10:00PM EST by NWS Marquette MI
* WHAT...For the Small Craft Advisory, west winds 15 to 25 kt with gusts up to 30 kt and waves 5 to 8 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...Upper Entrance of Portage Canal to Eagle River MI and Eagle River to Manitou Island MI. * WHEN...For the Small Craft Advisory, until 7 AM EST Wednesday. For the Heavy Freezing Spray Warning, until 10 PM EST Tuesday. * 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. Conditions will be hazardous to small craft.
Small Craft Advisory issued January 19 at 3:39PM EST until January 21 at 7:00AM EST by NWS Marquette MI
* WHAT...For the Small Craft Advisory, west winds 15 to 25 kt with gusts up to 30 kt and waves 5 to 8 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...Upper Entrance of Portage Canal to Eagle River MI and Eagle River to Manitou Island MI. * WHEN...For the Small Craft Advisory, until 7 AM EST Wednesday. For the Heavy Freezing Spray Warning, until 10 PM EST Tuesday. * 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. Conditions will be hazardous to small craft.
Gale Warning issued January 19 at 3:39PM EST until January 19 at 7:00PM EST by NWS Marquette MI
* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with gusts up to 35 kt and waves 8 to 12 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...Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore. * WHEN...For the Gale Warning, until 7 PM EST this evening. For the Heavy Freezing Spray Warning, until 10 PM EST Tuesday. * 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. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.
Heavy Freezing Spray Warning issued January 19 at 3:39PM EST until January 20 at 7:00PM EST by NWS Marquette MI
* WHAT...Heavy freezing spray at a rate of 2 cm per hour or greater occurring, and may rapidly accumulate on vessels. * WHERE...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. * WHEN...Until 7 PM EST Tuesday. * 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.
Heavy Freezing Spray Warning issued January 19 at 3:39PM EST until January 20 at 10:00PM EST by NWS Marquette MI
* WHAT...Heavy freezing spray at a rate of 2 cm per hour or greater occurring, and may rapidly accumulate on vessels. * WHERE...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 Tuesday. * 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.
Heavy Freezing Spray Warning issued January 19 at 3:39PM EST until January 20 at 10:00PM EST by NWS Marquette MI
* WHAT...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. For the Small Craft Advisory, west winds 15 to 25 kt with gusts up to 30 kt and waves 5 to 8 ft occurring. * WHERE...Manitou Island to Point Isabelle MI, Point Isabelle to Lower Entrance of Portage Canal MI, Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays and Huron Islands to Marquette MI. * WHEN...For the Heavy Freezing Spray Warning, until 10 PM EST Tuesday. For the Small Craft Advisory, until 7 PM EST Tuesday. * 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. Conditions will be hazardous to small craft.
Small Craft Advisory issued January 19 at 3:39PM EST until January 20 at 7:00PM EST by NWS Marquette MI
* WHAT...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. For the Small Craft Advisory, west winds 15 to 25 kt with gusts up to 30 kt and waves 5 to 8 ft occurring. * WHERE...Manitou Island to Point Isabelle MI, Point Isabelle to Lower Entrance of Portage Canal MI, Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays and Huron Islands to Marquette MI. * WHEN...For the Heavy Freezing Spray Warning, until 10 PM EST Tuesday. For the Small Craft Advisory, until 7 PM EST Tuesday. * 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. Conditions will be hazardous to small craft.
Winter Weather Advisory issued January 19 at 2:46PM EST until January 20 at 7:00AM EST by NWS Marquette MI
* WHAT...Lake effect snow and blowing snow. Additional snow accumulations between 2 and 4 inches. Winds gusting as high as 35 mph. * WHERE...Keweenaw and Northern Houghton Counties. * WHEN...Until 7 AM EST Tuesday. * IMPACTS...Plan on slippery road conditions. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday evening and Tuesday morning commutes.
Cold Weather Advisory issued January 19 at 2:26PM EST until January 20 at 9:00AM EST by NWS Marquette MI
* WHAT...Very cold wind chills as low as 25 below. * WHERE...Keweenaw and Northern Houghton Counties. * WHEN...Until 9 AM EST Tuesday. * IMPACTS...The dangerously cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes.
Gale Warning issued January 19 at 10:48AM EST until January 19 at 1:00PM EST by NWS Marquette MI
* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 35 kt and waves 7 to 10 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. For the Small Craft Advisory, west winds 15 to 25 kt with gusts up to 30 kt and waves 6 to 9 ft expected. * WHERE...Manitou Island to Point Isabelle MI, Point Isabelle to Lower Entrance of Portage Canal MI, Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays and Huron Islands to Marquette MI. * WHEN...For the Gale Warning, until 1 PM EST this afternoon. For the Heavy Freezing Spray Warning, until 10 PM EST Tuesday. For the Small Craft Advisory, until 7 PM EST Tuesday. * 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. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.
Gale Warning issued January 19 at 10:48AM EST until January 19 at 1:00PM EST by NWS Marquette MI
* WHAT...For the Gale Warning, north winds 20 to 25 kt with gusts up to 35 kt and waves 6 to 11 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...Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border. * WHEN...For the Gale Warning, until 1 PM EST this afternoon. For the Heavy Freezing Spray Warning, until 10 PM EST Tuesday. * 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. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.
Gale Warning issued January 19 at 10:48AM EST until January 19 at 1:00PM EST by NWS Marquette MI
* WHAT...For the Gale Warning, northwest winds 25 to 35 kt and waves 9 to 12 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. For the Small Craft Advisory, northwest winds 20 to 25 kt with gusts up to 30 kt and waves 7 to 10 ft expected. * WHERE...Upper Entrance of Portage Canal to Eagle River MI and Eagle River to Manitou Island MI. * WHEN...For the Gale Warning, until 1 PM EST this afternoon. For the Heavy Freezing Spray Warning, until 10 PM EST Tuesday. For the Small Craft Advisory, until 7 PM EST Tuesday. * 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. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.
New Food Storage Guidelines to Reduce Human - Wildlife Interactions
In response to wolves accessing human food and garbage in and around Rock Harbor and campgrounds located on the east end of the island, new food storage guidelines to ensure the safety of visitors and wildlife are in effect.
Malone Bay Campground Shelters Closed Nights of July 29 - August 1, 2025
On these dates, the Malone Bay shelters are reserved for Agaaming Aki tribal summer youth camp. Isle Royale is within the traditional homelands of the Grand Portage Band of Lake Superior Chippewa. The 2 group sites at Malone Bay will remain open.
Duncan Bay Narrows Campground Closed Nights of August 1 - August 5, 2025
On these dates, Duncan Bay Narrows campground will be closed for shelter and privy maintenance.
USCG Navigational Buoys Not in Water Until Mid-June
Boaters: Due to USCG season start-up delays, navigational buoys are not in Lake Superior waters around Isle Royale. Use caution around navigational channels. Buoys are estimated to be put in place by mid-June.
2025 RANGER III Parking Area Construction Notice: Carpool When Possible
Houghton city will be doing construction work that affects the upper, non-gated lot for most of the 2025 summer season. Parking may become limited in the NPS available lots. To help with available parking, when possible, please carpool.
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