Several inches of snow are expected over a large swath of Iowa with blizzard conditions hitting the northern half of the state.
Anywhere from 4-7 inches of snow could fall in western and central Iowa with up to 9 inches across northern Iowa through Thursday night. Thundersnow, an area of heavy snow with embedded thunder, could occur.
Winds will increase with gusts up to 50 mph in some places causing whiteout conditions and making driving dangerous, especially for high-profile vehicles or vehicles towing trailers.
The Iowa Department of Transportation has issued a reminder that strong winds or heavy snow are capable of snapping power lines, toppling road signs and blowing debris onto roads. Motorists are advised to never cross a road where downed power lines, poles or transformers are present. Do not try to free lines or remove debris yourself. Call 911 if you observe such items on the roadway so emergency assistance can be provided.