NWS-confirmed 67 mph thunderstorm wind gusts hit La Crosse Co., WI overnight Sep 2

In the early morning hours of September 2, 2026, a line of severe thunderstorms moved through western Wisconsin, producing damaging wind gusts across La Crosse, Buffalo, Jackson, and Juneau counties. The National Weather Service office in La Crosse — NWS ARX — confirmed multiple high-wind reports from the event, with the strongest gust reaching 67 mph near New Amsterdam in La Crosse County at approximately 2:37 AM CDT. If you slept through the storm, you may not yet know what it left behind on your property.

Communities including New Amsterdam, Holmen, La Crosse, Arcadia, Melrose, and the Buckhorn State Park area were in the storm’s direct path. Wind damage was confirmed in Juneau County near Buckhorn State Park, where a tree came down on a power line according to NWS ARX data sourced through 911 dispatch. Wind-related damage to roofs and exteriors is not always visible from the ground — and Allied Emergency Services has been helping Midwest property owners navigate storm recovery for 27 years. Our team is prepared to respond throughout the region.

What the National Weather Service Confirmed

NWS La Crosse (ARX) documented the following confirmed wind reports from the September 2 storm event through local storm report data and 911 dispatch sources. These are the verified facts:

• 2:37 AM CDT — New Amsterdam, La Crosse County: A public report recorded a 67 mph wind gust, the highest confirmed reading in the region from this storm system. This speed significantly exceeds the NWS severe thunderstorm wind threshold of 58 mph.
• 2:38 AM CDT — Holmen, La Crosse County: NWS ARX confirmed a 57 mph gust near Holmen, recorded just one minute after the New Amsterdam report as the storm line continued its track eastward.
• Arcadia, Buffalo County: A 54 mph gust was confirmed near Arcadia per NWS ARX local storm report data.
• Melrose, Jackson County: A 53 mph gust was confirmed near Melrose, also per NWS ARX.
• Buckhorn State Park area, Juneau County: Wind damage was confirmed, including a tree down on a power line, sourced through 911 dispatch per NWS ARX report data.

For reference: the NWS defines a severe thunderstorm as one producing wind gusts of 58 mph or greater. The 67 mph gust recorded near New Amsterdam surpassed that benchmark by nearly 10 mph. At those wind loads, roofing systems can lose shingles from decking, ridge caps can shift out of position, and flashing seals can fail — damage that is frequently invisible from a sidewalk inspection. The 53–57 mph range confirmed across Holmen, Arcadia, and Melrose is sufficient to lift aged or improperly fastened roofing materials, pull gutters away from fascia, and drive wind-borne debris into siding and window frames.

NWS ARX local storm reports represent confirmed observational data, not modeled estimates. When NWS confirms winds at these speeds across a residential corridor, property owners in the affected area have solid grounds to conduct a thorough post-storm inspection — not out of alarm, but out of due diligence.

What Homeowners in New Amsterdam, Holmen, La Crosse, Arcadia, Melrose, and the Buckhorn Area Should Check Now

Once daylight arrives and conditions are safe, a methodical exterior walkthrough can help you spot damage early and build the documentation record you may need for an insurance claim. Here is what to look for, area by area:

Roof

• Missing, lifted, or curled shingles: Walk the perimeter of your home and observe the roofline from multiple angles. Ridge caps and hip shingles are the most wind-exposed surfaces and are often the first to show displacement.
• Granule loss: Check downspout discharge areas and the ground near your foundation for heavy granule accumulation. Significant granule loss following a wind event can indicate shingle damage even when shingles appear to remain in place.
• Exposed decking or underlayment: Any visible dark patches through missing shingles represent an active rain intrusion risk. Photograph these areas immediately and clearly.
• Flashing: Inspect flashing at chimneys, skylights, plumbing vents, and roof-to-wall transitions. Wind can lift and partially separate flashing without fully removing it, leaving a gap that water will find.

Siding and Exterior Walls

• Displaced or cracked panels: Walk each elevation of the structure and look for siding sections that have pulled away from the wall, cracked, or show impact marks from wind-driven debris.
• Soffit and fascia: These surfaces are among the first to lift in high-wind events. Check for hanging or buckled soffit panels under roof overhangs on all sides of the home.
• Window and door frames: Look for displaced trim, cracked caulking, or any gaps where wind-driven water could enter between the frame and siding.

Gutters and Downspouts

• Confirm that gutters remain securely attached at every hanger point. High winds frequently pull gutters away from fascia boards, particularly on longer runs.
• Check for dents, separated seams, or downspouts that have disconnected from the drain system entirely.

Trees and Surrounding Property

• The confirmed tree-on-power-line incident near Buckhorn State Park is a reminder that storm-weakened trees can continue posing a threat to structures long after the wind has passed. Look for large limbs that are cracked, hanging, or resting against your roofline or walls.
• Do not attempt to remove limbs contacting your structure or utility lines yourself. Contact a licensed tree service, and if wires are involved, notify your utility provider before any other action.

Interior Signs of Water Intrusion

• Check your attic with a flashlight for daylight visible through the roof deck, or any moisture present on insulation and rafters near the eaves and ridge.
• Inspect upper-floor ceilings for water staining or soft spots — these can develop hours to days after the initial event as moisture works its way through compromised materials.
• Check around exterior window and door frames for new drafts, moisture tracks, or displaced weatherstripping that may have been shifted by wind pressure.

If You Find Damage

Finding storm damage does not have to become an overwhelming situation. A methodical approach protects both your property and your options under your insurance policy.

Document Before Anything Else

Before any repairs begin, photograph and video every affected area from multiple angles. Wide-angle shots showing the full roof elevation matter just as much as close-up images of specific damage points. Date-stamp all media. Do not move or alter damaged materials before documentation is complete — this record becomes the foundation of any insurance claim, and gaps in it can complicate the process later.

Notify Your Insurance Carrier Promptly

Report the loss to your homeowner’s insurance company as soon as possible. Most policies require prompt notification following a covered event. Your insurer will assign an adjuster to inspect the property. Allied Emergency Services is a licensed restoration contractor — we can document damage thoroughly, produce detailed written repair estimates, and meet with your adjuster on-site to walk through our findings. We do not negotiate, settle, or adjust insurance claims on your behalf; those decisions rest between you and your carrier.

Choose a Licensed Contractor

Significant wind events draw out-of-state contractors with no local accountability. Before signing anything, verify licensure. Allied Emergency Services holds an active Illinois roofing contractor license (#104.019029) and has operated throughout the Greater Midwest for 27 years under IICRC-certified restoration standards. If you are in the Holmen area or the broader La Crosse region, our team is familiar with the roofing systems and local building standards common to this part of Wisconsin. You can learn more about how we approach storm damage restoration on our website.

Temporary Protective Measures

If you have open damage that could expose your home to additional water before a full inspection can occur, emergency tarping may be appropriate. Do not attempt to access a steep or wet roof yourself. Allied can assist with temporary protective measures as part of our initial storm response services.

This article is provided as general information only and does not constitute legal or insurance advice. For guidance specific to your policy or claim, consult a licensed public adjuster or insurance professional.

Call Allied Emergency Services — 24/7 Storm Response

The September 2 wind event across La Crosse County and the surrounding region is exactly the kind of storm that warrants a professional eye on your property. Damage that is not visible from the ground — lifted flashing, displaced underlayment, fractured shingle tabs — can allow water intrusion that compounds over days into significantly more expensive interior repairs. Early inspection protects your options.

Call us 24 hours a day, 7 days a week at (800) 792-0212 to speak with a storm response team member. You can also text ESTIMATE to (844) 907-2546 for a prompt callback. Our inspections are thorough and professional, designed to give you an honest, documented picture of your property’s condition — whether the news is reassuring or requires immediate attention.