These single-digit to subzero readings, combined with the strong winds, will see wind chills drop into the minus 20- to minus 30-degree and colder range.
The National Weather Service of Northern Indiana has issued a Wind Chill Advisory to start at 3 a.m. on Friday morning and last until 1 p.m. on Friday afternoon.
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The Wind Chill Advisory remains in effect until noon today as wind chills could drop to -20. Wind chills may fall as cold as -25. The NWS wind chill temperature index provides an accurate, understandable, and useful formula for calculating the dangers from winter winds and freezing temperatures.
SATURDAY: Partly Cloudy and Very Cold High: 7. The wind chills combines the wind and the temperature to give an idea of what temperature would cause the same about of body heat loss were there no wind.
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Wind chill can contribute to frostbite and to hypothermia both of which are risky and can cause permanent damage to the body or death. A west northwest wind of 5 to 7 miles per hour will become calm in the evening.
A powerful arctic cold front is still on track to blast through The Valley early Tuesday.
Extreme cold and snow squall warnings issued
During the overnight the temperature will drop to -23C - but again - it will feel more like -34C with the wind chill. "Cover up. Environment Canada issued a snow squall warning and extreme cold warning Sunday for Sarnia and Lambton County.
Sunday night, there is a 30 percent chance of showers after midnight, with a low of 32, according to the weather service.