The Wisconsin DNR urges snowmobilers to use caution on ice and ride sober as Snowmobile Safety Week runs Jan. 10–18 across Wisconsin.
The Basics
- The Wisconsin DNR is urging snowmobilers to use extra caution on ice as International Snowmobile Safety Week runs Jan. 10–18, warning that ice conditions can change quickly with fluctuating temperatures.
- Officials stress that no ice is ever completely safe and recommend checking local sources for ice conditions or avoiding ice travel altogether when possible.
- The DNR also reminds riders to stay sober on the trails, noting that impaired operation is illegal and contributed to multiple snowmobile fatalities in Wisconsin last season.
As snowmobile season ramps up across Wisconsin, the Wisconsin Department of Natural Resources is reminding riders that winter fun can turn dangerous quickly — especially when ice is involved.
With International Snowmobile Safety Week running Jan. 10–18, the Wisconsin Department of Natural Resources is urging snowmobilers to slow down, stay sober and think twice before riding on frozen lakes and rivers.
“Ice conditions can be unpredictable with fluctuating temperatures, and with International Snowmobile Safety Week coming up Jan. 10-18, we urge snowmobilers to be extra careful when driving on ice,”
Lt. Jake Holsclaw, DNR off-highway vehicle administrator.
Ice Conditions Can Change Fast
Fluctuating winter temperatures across Wisconsin mean ice thickness can vary dramatically — even within short distances.
“Ice conditions can be unpredictable with fluctuating temperatures, and with International Snowmobile Safety Week coming up Jan. 10–18, we urge snowmobilers to be extra careful when driving on ice,” said Lt. Jake Holsclaw, DNR off-highway vehicle administrator. “Remember that no ice is ever completely safe, and that even areas that seem thick and covered with snow may be hiding patches of black ice.”
The DNR does not monitor ice conditions statewide. Instead, riders are encouraged to check with local fishing clubs, bait shops and outfitters, which often have the most up-to-date, hyperlocal ice information. Even then, the DNR says the safest option is avoiding ice travel altogether whenever possible.

Sober Riding Saves Lives
The agency is also stressing the importance of sober snowmobiling. Operating a snowmobile under the influence of alcohol or drugs is illegal in Wisconsin — and deadly.
Several alcohol-related snowmobile fatalities were reported in Wisconsin during the 2025 season, according to the DNR. Impaired judgment, reduced reaction time and poor visibility can be a dangerous mix on trails and frozen waterways.
Snowmobile Ice Safety Tips
The DNR recommends snowmobilers follow these basic safety guidelines this winter:
- Remember that ice is never completely safe under any conditions
- Wear proper winter clothing and safety gear, including a life jacket or float coat
- Avoid traveling in unfamiliar areas
- Slow down when riding at night
- Be cautious near inlets, outlets and narrow sections of lakes where currents thin the ice
- Watch for pressure ridges and buckling ice, which can hide open water
For more detailed guidance, riders are encouraged to review the DNR’s ice safety resources and Wisconsin snowmobile regulations before heading out. Also check our forecast pages to get the latest conditions.
WWN Bottom Line
With Wisconsin locked into an active winter pattern, snowmobiling conditions can look inviting — but looks can be deceiving. Ice strength can change quickly, especially during midwinter thaws and refreezes. A little extra caution now can help ensure the season ends with memories, not emergencies.
