Brace yourself for another arctic blast.

A polar vortex by week’s end is expected to bring the coldest weather experienced so far this winter into the region, with only single-digit highs during the day and temperatures well below zero overnight, according to the National Weather Service. Sunday night could see a plunge to minus 12 degrees in the Iron Mountain area; Monday is shaping up about the same.

Interior western Upper Michigan has “the potential of temperatures remaining subzero Saturday night through at least Tuesday morning,” the NWS office in Marquette posted online.

Such bitter cold can be dangerous if proper precautions aren’t taken to avoid exposure, including the risk of frostbite, hypothermia and other cold-related injuries, Wausau, Wis.-based Aspirus Health warned in a news release.

“Prevention is key,” said Dr. Bryan Judge, Aspirus emergency medicine physician and Emergency Trauma medical director. “Preparing appropriately when you’re out and about in the car, have a pair of gloves, hat and boots in case you get stranded is important.”

Aspirus Health offered these tips to avoid injuries related to cold weather —

— Layer clothing: Wear multiple layers of clothing to trap warm air close to the body. The layers should include a moisture-wicking base layer to keep sweat away from the skin, an insulating layer for warmth and a waterproof and windproof outer layer to protect against the elements.

— Protect extremities: Keep extremities — such as hands, feet and ears — well-covered. Wear insulated and waterproof gloves, thick socks and a hat that covers the ears to prevent frostbite.

— Stay dry: Wet clothing and skin significantly increase the risk of cold-related injuries. Use waterproof outer layers to protect against rain and snow and change into dry clothing if you become wet.

— Hydration: Stay hydrated, as dehydration can increase the risk of cold injuries. Drink warm beverages and avoid excessive consumption of caffeine or alcohol, as they can contribute to dehydration.

— Know the signs of frostbite: Be aware of the early signs of frostbite, including numbness, tingling or pain in extremities. If you notice these symptoms, seek shelter and warm up the affected area gradually.

— Know your limits: Be aware of your own cold tolerance and know when it’s time to seek shelter. Avoid pushing your body beyond its limits in extremely cold conditions.

— Play it safe with outdoor activities: If engaging in winter sports or outdoor activities, plan ahead. Check weather forecasts, inform someone of your plans and ensure you have the appropriate gear and equipment.

— Stay informed: Be alert to weather conditions and warnings in your area. Be prepared to alter plans to take extra precautions based on the changing weather forecasts.

It’s crucial to be vigilant, stay informed and prioritize personal safety in cold weather conditions to enjoy winter outdoor activities safely, Aspirus Health advised.