Severe storms cause widespread damage to Wisconsin parks and campgrounds

Widespread heavy rain and damaging winds hit southeastern Wisconsin this week.

In the wake of these punishing storms, state parks, trails, and some private campgrounds were damaged by downed trees, washed-out roads, broken power lines, and temporary closures.

What happened

A large storm system produced record-level rainfall and localized flash flooding in southeastern Wisconsin. Large hail and wind speeds in excess of 70 mph were reported. Milwaukee and its suburbs were hit especially hard. This forced event cancellations, emergency responses, and a statewide assessment of park and trail damage, among other things.

At the same time, other severe thunderstorms cut through central and northern counties, leaving some private campgrounds and park campgrounds damaged by straight-line winds and falling trees. State officials say it may take days for crews to fully assess and reopen all affected areas.

What RVers can expect

If you have plans to visit Wisconsin in the coming days or weeks, you can expect campground closures. Park webpages and campground managers are posting updates as they assess damage.

Some access roads, trails, boat launches and picnic areas may be unsafe, even if the campground itself looks OK. Look for posted closures and obey barriers.

Downed trees and live power lines are a big hazard around campsites and in park forests. These are often discovered long after the storm has passed. Give crews space to work.

For RVers heading into Wisconsin (or already there)

Check official park and campground pages along with news updates for closures and condition notices. Private campgrounds should have posts on their sites or social pages.

If you have a reservation, call the campground to confirm that your site hasn’t been impacted or moved. Many operators will proactively contact affected guests.

Know local weather and river forecasts. Flash-flood conditions can change fast. Subscribe to NWS alerts for the counties you’ll be in. If flash flood or flood warnings are posted, delay travel into low-lying areas.

Move lightweight outdoor gear, awnings, and unsecured items inside or lash them down if storms are forecast.

Make sure your RV insurance and any reservation refund/cancellation policies are understood in advance. Document your rig with photos before arrival in case of damage.

Safety during storms and storm warnings

• Avoid parking under large trees. Even trees that look healthy can fail in high winds. If damage has already occurred, assume more limbs could fall.

• Treat downed lines as live. Never touch or drive over downed power lines. Instead, report them to the authorities.

• Don’t drive through floodwater. A few inches can stall or sweep away an RV or tow vehicle. Turn around, don’t drown.

• Follow campground staff instructions. They’ll direct you to safer sites, shared power protocols after outages, or evacuation routes.

After the storm

Inspect safely, from a distance first: Look for hanging limbs, leaning trees, ground debris, and utility damage. If you suspect structural damage to your RV (roof or awning), document it with timestamps and photos before moving or repairing.

If you find downed trees or washed-out trails in a state property, the DNR asks visitors to note locations and report them to property staff so crews can respond.

Expect service interruptions like power outages, limited Wi-Fi/cellular coverage, and trail closures that may last for days while crews clear debris. Plan extra food, water, and fuel.

Final tips

Be flexible over the next few days. Be ready to reroute, take an extra fuel can, carry a basic treefall/roof patch kit, and keep emergency numbers handy (county sheriff, campground host, park office).

If in doubt, delay a nonessential trip into Wisconsin’s hard-hit areas. Lots of parks and private campgrounds will reopen as they clear debris and repair infrastructure. Most operators will work with guests affected by storm damage.

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