tis a beautiful sunny day!
but ...
"Extreme wind chill values this weekend.
This is a warning that extreme wind chill conditions are imminent or occurring in these regions. Monitor weather conditions..listen for updated statements.
A very cold Arctic airmass and moderate winds will give extreme wind chill values below minus 40 to some locations this morning. While conditions will improve somewhat this afternoon as temperatures moderate, it will be temporary. The cold weather will persist throughout the weekend, with much of Alberta experiencing extreme wind chills below minus 40 into Sunday.
At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes."