Des Moines, IA – Drivers across Iowa are being urged to prepare today as forecasters warn that fast-moving snow squalls could develop this season, bringing sudden whiteouts and dangerous road conditions as early holiday travel increases. The bursts may impact routes from Des Moines to Ames, Sioux City, Mason City, and along major corridors including I-35 and I-80.
Snow squalls are brief—usually under an hour—but rank among the most dangerous forms of winter weather. Sudden visibility loss paired with flash freezing can quickly turn highways slick, contributing to multi-vehicle pileups across the Plains and Midwest in past events. Officials emphasize that avoiding the road during a Snow Squall Warning is the safest action. Meteorologists frequently remind drivers: “You don’t want to be on the road when it happens.”
If a squall hits while you’re driving, experts recommend slowing down gradually, turning on hazard lights, and widening following distance. Drivers should stay in their lane, avoid slamming the brakes, and never stop in a travel lane where visibility may drop to near zero. Safe pull-off locations—parking lots, exits, or rest areas—are the best places to wait until conditions improve.
Iowans heading out for errands, commutes, or early holiday shopping should keep winter emergency kits in their vehicles, including blankets, water, chargers, ice scrapers, and traction materials like sand or cat litter. Homeowners should secure outdoor items in case gusty winds accompany the squalls.
Forecasters will continue to monitor the system this afternoon, with additional updates possible.
