10 a.m. Tuesday, Jan. 21, 2014:
The National Weather Service has allowed a wind chill advisory to expire, although bitter wind chills of -10 to -20 degrees are expected to continue throughout the day, the result of very low temperatures and brisk winds.
People are advised to dress warmly when going outdoors.
The more seasonable conditions that visited the area will evaporate Tuesday when the dreaded polar vortex dips south into the St. Charles area.
The National Weather Service on Monday issued a wind chill advisory predicting the frigid cold will arrive about 3 a.m. Tuesday, when a wind chill advisory begins. It remains in effect until 10 a.m., and wind chills are expected to drop as low as 25 degrees below zero.
The National Weather Service warms such bone-chilling temperatures are dangerous and can cause frostbite or hypothermia within a matter of minutes, so dress warmly, including a hat and gloves.
An Alberta clipper at midweek may bring more snow and wind chills.
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