NEW: Central US Winter Storms February 2021 UPDATED: Arctic Amplification UPDATED: Winter Storm Risk Increase Tweet: Record-low temperatures set in Wisconsin January 31, 2019 by NWS Green Bay on Twitter Here is a look at the record low temps that were set this morning! #wiwx pic.twitter.com/MuQyaQmejp— NWS Green Bay (@NWSGreenBay) January 31, 2019 Go to Site Related Events Polar Vortex Split and Eastern US Arctic Invasion January 2019