The early arrival of winter this year has become increasingly apparent here in the month of December. Temperatures in Eau Claire are currently running more than eight degrees below average through the first ten days of the month, and we've had four consecutive mornings below zero, with a few more to go.
The big story late tonight on through Wednesday night will be dangerous wind chill values with much of the Chippewa Valley and Northwest Wisconsin under wind chill advisories and warnings through the next 24-36 hours. Winds won't be that strong, on the order of 10-15 mph, but when temperatures are so low, it doesn't take much wind to drop the real feel values to those dangerous levels.
The best advice is to limit your outdoor time, and spend it inside in the warmth of your home or office. If you do need to travel about, try your best to cover all exposed skin, as frostbite can happen in a matter of minutes in these harsh conditions.
The good news is the coldest air will ease some on Thursday and into the start of the weekend, though still averaging several degrees below average.