SVR Warning: 60mph Winds + 1in Hail — Waukesha/Milwaukee/Ozaukee/Washington Co. WI

A severe thunderstorm swept through southeastern Wisconsin during the early morning hours of Thursday, September 3, 2026, bringing dangerous conditions to four counties across the greater Milwaukee metro area. The National Weather Service office in Milwaukee/Sullivan issued a Severe Thunderstorm Warning for Waukesha, Milwaukee, Ozaukee, and Washington counties, effective 7:51 AM CDT and running through 8:45 AM CDT — a critical window that overlapped with the morning commute and found many residents just starting their day.

At 7:50 AM CDT, NWS radar had the storm positioned near Germantown and tracking east at 20 miles per hour. The radar-confirmed hazards — 60 mph wind gusts and quarter-size hail measuring 1.00 inch in diameter — moved the storm directly through a long list of communities: Menomonee Falls, Mequon, Cedarburg, Grafton, Waukesha, Brown Deer, Glendale, and surrounding northern Milwaukee suburbs. If your home or business sits in any of these communities, a post-storm inspection is worth completing — even if nothing appeared obviously wrong from the street.

What the National Weather Service Confirmed

The following details come directly from the NWS Milwaukee/Sullivan Severe Thunderstorm Warning issued September 3, 2026. Allied Emergency Services presents these facts as reported, without modification or addition.

• Warning issued by: National Weather Service, Milwaukee/Sullivan office
• Warning period: 7:51 AM CDT to 8:45 AM CDT, September 3, 2026
• Counties covered: Waukesha, Milwaukee, Ozaukee, and Washington counties, southeastern Wisconsin
• Storm position at time of warning: Near Germantown, moving east at 20 mph
• Wind hazard: 60 mph gusts (radar indicated)
• Hail hazard: Quarter-size, 1.00 inch in diameter (radar indicated)
• Expected impacts per NWS: Hail damage to vehicles; wind damage to roofs, siding, and trees
• Communities named in the warning: Menomonee Falls, Mequon, Germantown, Cedarburg, Grafton, Waukesha, Brown Deer, and northern Milwaukee suburbs

Quarter-size hail at 1.00 inch is a threshold that storm restoration professionals and insurance carriers take seriously. On asphalt shingles, impacts at this diameter can fracture the granule layer and expose the underlying mat — damage that may not cause an immediate leak but accelerates aging and increases vulnerability to future weather events. On aluminum siding, soffit, and gutters, the denting is typically visible upon close inspection. At 60 mph, wind gusts carry enough force to lift older or mechanically stressed shingles, stress gutter hangers and fascia connections, and bring down tree limbs onto structures and vehicles. NWS warnings at this level are issued because documented radar-indicated thresholds have been met — not as a precautionary measure.

For current NWS alerts and archived warning records, visit weather.gov.

What Homeowners in Menomonee Falls, Cedarburg, Waukesha, and Surrounding Communities Should Check Now

Residents and property owners in Menomonee Falls, Waukesha, Cedarburg, Grafton, Brown Deer, and across the four-county warning area should conduct a methodical exterior and interior walkthrough as soon as it is safe to do so. You do not need to access your roof — in most cases, you shouldn’t. Here’s what to look for:

Roof

• From the ground, scan the ridgeline and field of the roof for missing, lifted, or curled shingles
• Look for dark, circular bruising or dimpling on asphalt shingles — hail impact marks can be subtle and are easiest to spot when light hits the surface at a low angle
• Inspect metal components: ridge caps, pipe boots, chimney flashing, vent flashing, and any step flashing along dormers or additions
• Check gutters and downspouts closely — denting in aluminum gutters often provides the clearest indication of hail size and storm intensity, sometimes more reliably than the roof surface itself

Siding

• Walk the full perimeter of your home looking for cracked, punctured, or visibly dented vinyl or aluminum siding panels
• West- and north-facing walls typically receive the most direct impact when storms track eastward, as this morning’s storm did
• Inspect window screens, trim boards, J-channel, and shutters for dents, tears, or displacement from their tracks

Trees and Debris

• Identify any split or hanging branches near your structure — these are an ongoing falling hazard and should be addressed before they cause secondary damage
• Clear debris that has accumulated against foundation walls, vents, or HVAC equipment to prevent moisture buildup

Gutters and Drainage

• Check gutter seams and hanger straps for separation from the fascia board caused by wind or debris impact
• Confirm downspouts are still securely attached and directing water well away from the foundation

Water Intrusion

• Check attic spaces for daylight penetration, wet insulation, or moisture on roof sheathing — wind-driven rain can force water through gaps opened or widened by the storm
• Inspect upper-floor ceilings and areas surrounding skylights, chimneys, and exhaust vents for new water staining or soft spots in drywall
• Check window and exterior door frames for new drafts or moisture seepage that was not present before the storm

One important point worth repeating: hail and wind damage to roofing systems is frequently invisible from the ground. A roof that looks intact from the street may have sustained significant granule loss, cracked shingle tabs, or mat fracturing — damage that becomes a leak point during the next heavy rain or puts additional stress on the system heading into a Wisconsin winter.

If You Find Damage

Discovering storm damage — or simply suspecting it — after an event like this morning’s warning doesn’t need to feel overwhelming. Working through the right steps in the right order protects your property, your safety, and your position when it comes to an insurance claim.

Document Before You Touch Anything

Before any cleanup, temporary repairs, or debris removal begins, photograph and video your entire property thoroughly. Walk the perimeter, capture the roof from multiple ground-level angles, and document damaged siding panels, gutters, window screens, and any vehicles that were outside during the storm. Time-stamped photos taken within hours of a confirmed NWS warning carry real weight during the insurance review process. Where possible, note the positions of fallen limbs or debris in relation to the structure — that context helps tell the complete story of what the storm produced.

Make Safe Temporary Repairs If Necessary

If there is an active breach — a section of roof or a broken window allowing water into the structure — cover it with a tarp or board to prevent further damage. Save every receipt for emergency materials; these costs are frequently reimbursable under a standard homeowner’s policy. Do not begin permanent repairs until your carrier has been notified and a professional assessment has been completed.

Notify Your Insurance Carrier

Contact your homeowner’s insurance company as soon as practical. Reference the NWS Severe Thunderstorm Warning for Waukesha, Milwaukee, Ozaukee, and Washington counties issued September 3, 2026, and provide your photo and video documentation. Ask about your deductible, your policy’s specific provisions for hail and wind events, and the expected timeline for an adjuster visit. This article is provided as general information only and does not constitute legal or insurance advice; consult your insurance carrier and, where appropriate, a licensed professional for guidance specific to your situation and policy.

Partner With a Licensed Restoration Contractor

Allied Emergency Services has worked alongside Midwest homeowners and property owners for 27 years, helping them navigate the aftermath of hail and wind events. As a licensed restoration contractor, we provide thorough damage documentation, itemized repair estimates, and on-site coordination with your insurance adjuster — so that covered damage gets properly identified before any work begins.

We perform repairs to manufacturer specifications and applicable local building codes: full roof replacements, siding restoration, gutter and soffit work, and related structural repairs. Allied is a licensed restoration contractor, not a public adjuster; we do not negotiate, settle, or adjust insurance claims on your behalf. Our role is to give your property an honest, professional assessment and carry out the authorized repairs correctly.

If you’re in Germantown, Mequon, or anywhere across the four-county warning area, learn more about our storm damage restoration services for southeastern Wisconsin property owners.

Get a Free Storm Damage Assessment — Call or Text Allied 24/7

Storm damage doesn’t keep business hours, and neither do we. Allied Emergency Services is available around the clock for emergency response, free damage assessments, and restoration estimates across Waukesha, Milwaukee, Ozaukee, and Washington counties.

• Call 24/7: (800) 792-0212
• Text ESTIMATE to: (844) 907-2546

There is no cost and no obligation for an initial storm damage assessment. Quarter-size hail and 60 mph winds can leave damage that is easy to overlook and expensive to ignore — especially as Wisconsin weather turns toward fall and winter, when any compromised roofing or siding system faces additional stress. If you are not sure what this morning’s storm left behind, let Allied’s team take a look.