‘Adjust your speed:’ Milwaukee Co. sheriff, WisDOT warn of black ice on roads

Milwaukee County Sheriff's Office

MILWAUKEE — The Milwaukee County Sheriff’s Office in a news release Tuesday, Jan. 29 offered a reminder to motorists to exercise caution when traveling on interstates and expressways due to patches of black ice covering areas throughout the freeway system. WisDOT officials echoed that warning in a news release of their own.

A wind chill warning was set to take effect at 6 p.m. Tuesday, running through noon Thursday. The FOX6 Weather Experts say we could see the coldest air in decades — with wind chills potentially dropping to the -50s at times.

CLICK HERE for the latest FOX6 Forecast.

“Remember to monitor road conditions and adjust your speed to an appropriate level, maintain a safe following distance between your vehicle and the vehicle in front of you, and ensure that you are aware of the location of emergency vehicles and personnel at work,” said officials with the Milwaukee County Sheriff’s Office.

WisDOT officials described black ice as “a thin layer of highly transparent and hazardous ice that forms as melting snow refreezes on roads and bridges. The road may appear wet, or look as if there’s no hazard at all.”

Black ice tends to occur most commonly overnight and in the early morning as pavement temperatures drop, but WisDOT officials said the forecast through Friday morning, Feb. 1 makes black ice a daytime possibility as well. This is because of blowing snow and the potential for shorter-term freeze-thaw cycles as vehicle exhaust or sunlight heat driving surfaces before bitter winds freeze the moisture.

WisDOT officials noted crews were out treating the roads. Rock salt typically takes longer to gain effectiveness and melting power in the extreme cold.

They asked that drivers please slow down, give additional space to other traffic and take additional time to stop – or avoid travel if possible. Motorists should be especially cautious at traditional black ice trouble spots such as underpasses, within the shade of trees, at intersections or on interchange ramps.

In the release, WisDOT officials offered the following advice related to driving in the bitter cold:

  • Know the current road conditions, check 511wi.gov for the latest updates
  • Keep the vehicle’s gas tank full
  • Have an emergency kit
  • Have extra layers of winter clothing
  • Inform others about your route and expected travel time
  • Clear snow and ice from vehicles prior to traveling

If you become stranded:

  • Stay calm, stay buckled. It’s generally safest to stay buckled up inside your vehicle. Along with protecting you from the elements, your vehicle offers protection if other vehicles slide out of control. Getting out of your vehicle and walking near a highway is dangerous any time of year.
  • If possible, call 911 on your cell phone. Be ready to describe your location and situation. Follow any instructions. You may be told to stay where you are until help arrives.
  • Resist the urge to get out of your vehicle and shovel or push your vehicle free. Overexertion can greatly complicate your situation, and being outside your vehicle exposes you to dangers.
  • If necessary to stay warm, run your vehicle’s engine for brief periods (make sure the exhaust system is working properly and not blocked by snow). Using portable heaters inside vehicles or other enclosed spaces can be dangerous.
  • Keeping your dome light on during low-light conditions can make it easier for rescue crews to find you.
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