There is a patchwork of wind chill advisories and warnings posted across the region tonight. But let’s cut to the chase – it’s going to be windy and cold.
We’ve seen NW wind gusts in excess of 50 mph in western South Dakota today. And the cold air is following. Much of the afternoon, Sioux Falls was in the 40s while Aberdeen was in the teens… and NW South Dakota was in single digits.
The cold air will continue to spread across the region tonight, brought in by northerly winds at 30-40 mph. A little light snow (under 1") is also possible. The winds will then die down, but the cold air will remain in place. We’re expecting temperatures in the teens below zero by morning in eastern South Dakota – and not much warmer in the west.
Sunday will be a sunny day, and a reasonably wind-free day. But the cold air will not warm up. Still expecting high temperatures a few degrees either side of zero in eastern KELOLAND. Yes, that means some places will fail to get above zero tomorrow.
Still expect the cold air to remain over us for the first half of next week, with highs most days in eastern South Dakota to be in the single digits at best. We’re carrying a chance of light snow for New Year’s Eve and New Year’s Day, before temperatures moderate somewhat Thursday and Friday.