Des Moines, Iowa – Blowing snow and sharply reduced visibility could create dangerous travel conditions across northern Iowa on Sunday.
According to the National Weather Service in Des Moines, the highest potential for whiteout conditions is expected in northern Iowa, where strong winds may combine with falling and existing snow to significantly reduce visibility. The agency noted that blowing snow remains possible across central Iowa, with a 40–50% chance during the day Sunday.
Forecasters emphasized that hazardous travel may occur regardless of snowfall totals, as wind-driven snow can quickly lower visibility to under one-quarter mile in exposed areas. A probability map shared by the National Weather Service shows elevated chances for near-zero visibility across much of northern Iowa.
Snowfall is expected to begin after 6 a.m. Sunday, with the most impactful period from noon to 6 p.m., before conditions gradually improve late Sunday night. Rain is expected to transition to snow early Sunday, and while a brief period of freezing rain is possible, impacts from icing are expected to be minimal.
Snowfall amounts across much of the region are forecast to be generally 1 to 4 inches, with higher totals just outside Iowa. The National Weather Service cautioned that additional snowfall could worsen and prolong near-blizzard conditions, especially where winds remain strong.
Major travel routes including Interstate 35, Interstate 80, U.S. Highway 20, and rural highways may become difficult or dangerous, particularly in open country where blowing snow is more severe.
The National Weather Service advised residents to monitor updated forecasts, prepare a winter emergency kit, and consider altering travel plans if possible. Sharing forecast information with family and friends was also encouraged.
Drivers, students, agricultural workers, and freight operators should plan for rapidly changing conditions and allow extra time if travel is unavoidable.
