Editor’s note: An article listing warming shelters may be found here.

The National Weather Service Milwaukee/Sullivan Weather Forecast Office provided the following update as of 4:15 a.m. on Friday.

An Extreme Cold Warning remains in effect for all of southern Wisconsin until 1 p.m. on Friday. Wind chills between -30 and -40 degrees are still expected during this time, with air temperatures between -10 and -20 degrees.

At 1 p.m. today a Cold Weather Advisory goes into effect until noon on Saturday. Wind chills of -20 to -30 degrees are expected during this time, with air temperatures between -10 to -20 degrees.

Cold conditions will linger into next week.