Disclaimer: This article covers a developing or serious situation. Information can change quickly. Multiple verification from official or authoritative sources is recommended before taking any action based on this or any single report. Readers are responsible for cross-checking facts and following local authorities’ guidance.
A major winter storm is affecting Wisconsin, with forecasts of up to 30 inches of snow in some parts of the state and blizzard conditions that could make travel difficult or impossible. Governor Tony Evers has declared a statewide emergency and activated the Wisconsin National Guard. The Milwaukee Journal Sentinel and other outlets have reported on the storm’s timeline, snowfall bands, and official guidance. This is a factual update of what has been reported; readers should verify with the National Weather Service, WisDOT, and local officials before making travel or safety decisions.
Storm Timeline and Snowfall Bands
Winter Storm Iona has been impacting Wisconsin from late Saturday, March 14, through Monday, March 16, 2026. According to the National Weather Service and local meteorologists, the heaviest snow has been expected in northern and central Wisconsin. Counties including Oneida, Vilas, Florence, Forest, Marinette, Oconto, Door, Marathon, Langlade, Lincoln, Menominee, and Shawano have been under Winter Storm or Blizzard Warnings with 20 to 30 inches of snow possible in some areas. Central and northeast Wisconsin, including the Green Bay and Appleton areas, have been forecast to see 12 to 24 inches or more. Southern Wisconsin, including Milwaukee and Madison, has been expecting lower totals of 4 to 10 inches due to a mix of rain, sleet, and freezing rain before a transition back to snow. The Milwaukee Journal Sentinel has provided regional breakdowns and urged residents to follow official forecasts for their area.
Blizzard Conditions and Travel
Blizzard and near-blizzard conditions have been forecast with wind gusts of 45 to 50 mph in the north and 40 mph or more elsewhere, reducing visibility to a quarter mile or less. The Wisconsin Department of Transportation has advised residents to reconsider travel and to avoid non-essential travel from Saturday evening through at least Monday morning. WisDOT has recommended checking real-time road conditions at 511wi.gov or via the 511 Wisconsin app, clearing snow from vehicles, and carrying an emergency kit if travel is necessary. Governor Evers has urged Wisconsinites to stock up on supplies, prepare for potential power outages, and rely on trusted weather sources. The Milwaukee Journal Sentinel and regional stations have emphasised that travel could be “difficult to impossible” during the peak of the storm.
State and Local Response
Governor Tony Evers declared a state of emergency ahead of the storm to allow for coordination of resources and potential use of the Wisconsin National Guard. Utilities including Wisconsin Public Service have stated they are prepared to respond to power outages. ReadyWisconsin and state agencies have reiterated standard winter storm guidance: stay indoors when possible, avoid travel during the worst conditions, and have emergency supplies on hand. The Milwaukee Journal Sentinel has reported on school and business closures and local government updates as the storm unfolds. Readers should check local government and school district announcements for the latest closures and advisories.
What This Actually Means
Wisconsin is experiencing a significant winter storm with the potential for historic snowfall in parts of the state. Blizzard conditions and dangerous travel are expected in many areas. Residents should follow official guidance, avoid unnecessary travel, and verify any information with the National Weather Service and local authorities before acting.
How to Stay Safe and Where to Get Updates
ReadyWisconsin and the National Weather Service recommend keeping an emergency kit with water, non-perishable food, flashlights, batteries, and blankets. Check on neighbors, especially the elderly or those with mobility issues. If you must travel, allow extra time and tell someone your route. For the latest forecasts and warnings, use the NWS website, the 511 Wisconsin app or 511wi.gov for road conditions, and local TV and radio. School and business closures are being updated by districts and employers; check their official channels before heading out.
Power outages are possible in areas with heavy, wet snow and strong winds. Wisconsin utilities advise having a backup heat source if safe, and never using generators or grills indoors. Downed power lines should be reported to your utility and avoided.
What Is a Blizzard Warning?
A Blizzard Warning is issued by the National Weather Service when falling or blowing snow and wind are expected to create visibility of a quarter mile or less for at least three hours, with sustained or frequent gusts of 35 mph or greater. During a Blizzard Warning, travel is strongly discouraged because visibility and road conditions can become life-threatening. A Winter Storm Warning is issued when heavy snow, ice, or a combination is expected and can cause significant impacts. Both indicate that residents should take the storm seriously and follow official safety guidance.