‘Ground blizzard’ overnight may lead to closure of Interstate 35

I-35 Braces for Potential Overnight Closure as Iowa Faces Blizzard-Like Conditions

DES MOINES, Iowa — A potent combination of strong winds and existing snow cover is threatening travel across Iowa, with a significant portion of Interstate 35 potentially closing overnight. State officials are warning drivers to avoid unnecessary travel as blizzard-like conditions develop, fueled by wind gusts expected to exceed 50 mph.

The Iowa State Patrol, working in coordination with the Iowa Department of Transportation (Iowa DOT), is closely monitoring the situation. While a specific section of I-35 hasn’t been identified for closure, authorities are prepared to act swiftly to ensure public safety. The decision will be made later tonight, based on evolving weather patterns and road conditions.

Whiteout Warnings and the Danger to High-Profile Vehicles

The immediate concern isn’t new snowfall, but rather the redistribution of existing snow. Powerful wind gusts are forecast to create near-zero visibility conditions – what meteorologists call a ground blizzard – making driving extremely hazardous. Drifting snow will quickly reduce visibility and create treacherous road surfaces.

“The biggest risk isn’t necessarily the amount of snow, it’s the ability to see,” explained meteorologist Emily Schmidt with KCCI 8 News. “These winds are strong enough to lift and carry significant amounts of snow, creating whiteout conditions even where snowfall has stopped.”

The threat is particularly acute for high-profile vehicles – trucks, buses, and SUVs – which are more susceptible to being buffeted by strong crosswinds. The National Weather Service has issued a High Wind Warning for more than three dozen Iowa counties, including Polk County and all counties bordering Minnesota and Nebraska, from 9 p.m. Tuesday to 9 a.m. Wednesday. Gusts could reach up to 60 mph, capable of downing trees and power lines.

Beyond the Interstate: A Statewide Alert

The potential closure of I-35 is just one piece of a larger weather picture impacting the entire state. The Iowa DOT is urging all Iowans to postpone non-essential travel. Road conditions can change rapidly, and even seemingly clear stretches of highway can become dangerous in a matter of minutes.

“We’re asking people to really consider if their trip is necessary,” said Scott Marler, a spokesperson for the Iowa DOT. “If you can stay home, please do. If you must travel, be prepared for hazardous conditions, reduce your speed, and allow plenty of extra time.”

The situation highlights the increasing frequency of extreme weather events linked to climate change. According to the United Nations Framework Convention on Climate Change, the global average temperature has risen by approximately 1.1°C since the late 19th century, leading to more intense and frequent heatwaves, droughts, and extreme precipitation events. This trend is expected to continue, increasing the risk of weather-related disruptions to transportation and daily life.

Preparing for Power Outages and Staying Informed

Beyond travel hazards, the strong winds also pose a threat to the power grid. Utility companies are preparing for potential outages and urging residents to have emergency kits ready. These kits should include flashlights, batteries, a first-aid kit, non-perishable food, and water.

Staying informed is crucial. Residents are encouraged to monitor local news broadcasts, weather alerts, and the Iowa DOT’s 511 website for the latest road conditions and travel advisories. KCCI 8 News will continue to provide updates throughout the night and into Wednesday morning.

Here’s how to stay connected:

• KCCI YouTube: Subscribe for live updates
• KCCI App: Download for Apple | Download for Google Play
• Iowa DOT 511: Check road conditions

As Iowa prepares to weather this latest storm, the message is clear: prioritize safety, stay informed, and avoid unnecessary travel. The potential for dangerous conditions is real, and taking precautions now could prevent a serious incident.

Updated: 4:47 PM CST Dec 9, 2025