The US Coast Guard’s Great Lakes command on Monday issued a press release urging members of the public in the area “to exercise caution around icy waters as temperatures fluctuate across the Great Lakes region. Temperature fluctuations have impacts on the structural integrity of the ice and could pose safety concerns for those planning to recreate on or near ice and cold water.”

“Warmer air temperatures will cause frozen waters to melt at an alarming rate and may cause misperceptions about Great Lakes water temperatures, which will remain dangerously cold, posing safety concerns for anyone venturing onto the lakes. Ice is unpredictable and the thickness can vary, even in small areas. Warm temperatures and currents, particularly around narrow spots, bridges, inlets and outlets, are always suspect for thin ice. Stay away from cracks, seams, pressure ridges, slushy areas and darker areas since these signify thinner ice. In addition, ice near shore of a frozen lake may be unsafe and weaker because of shifting, expansion, wind and sunlight reflecting from the bottom. Before you head out onto the ice or onto the water, make sure you take the necessary precautions that could save your life,” the release continues.

The “necessary precautions” include tips such as “Dress in bright colors, wear reflective clothing, patches, or tape, and wear an exposure suit that is waterproof,” and to use a “buddy system.” Not mentioned is anything along the lines of “Just stay off the ice until next winter you fucking assholes.”