Eleva, WI Hail Storm – August 2026

A severe hail-producing storm moved through Eleva, WI on August 9, 2026, producing a maximum 1.91-inch stone and a long sequence of NWS alerts and spotter reports. The event ran from early morning into the next calendar day and showed both radar-detected and spotter-verified hail signatures.

What Happened

The storm sequence began before dawn and continued through late evening into early August 10. NWS issued 86 alerts for the Eleva warning area between 6:04 AM CDT on August 9 and 4:09 AM CDT on August 10. Many alerts were NWS warning only; several returned radar-detected hail signatures via dual-polarization radar, including notable radar detections of 1.11 inches at 7:41 AM CDT and 1.63 inches at 5:59 PM CDT. Spotter reports were recorded at multiple times during the event. mPING contributors reported dime-size hail (0.75 in.) mid-morning, a quarter (1.00 in.) in mid-afternoon, and ping-pong ball size (1.50 in.) at 11:11 PM CDT. Two half-dollar reports (1.25 in.) were logged near 11:00 PM CDT and 11:48 PM CDT. The mix of repeated NWS warning-only alerts and periodic radar-detected returns indicates a storm complex with fluctuating reflectivity and localized peaks in updraft strength.

Damage Assessment

Field reports and radar returns show surface impacts concentrated at a few distinct times and locations. Spotter-verified mPING submissions at 11:00 PM CDT and 11:11 PM CDT recorded half-dollar and ping-pong ball stones near the Eleva area, indicating localized heavier impacts in late evening. Earlier afternoon mPING entries documented quarter-size and dime-size hail near 2:10 PM CDT and 2:11 PM CDT. Radar-derived detections reached up to 1.63 inches at 5:59 PM CDT, with multiple radar-verified pulses later in the evening measuring between 1.15 and 1.25 inches.

Observed impacts reported by spotters were limited to scattered property and vegetation hits where the larger stones fell. Reported dime- and quarter-size impacts occurred broadly across residential and rural locations near Eleva, while the larger spotter reports clustered in the late evening hours around documented mPING locations. The pattern of repeated NWS warning-only alerts interspersed with radar-detected hail returns suggests variable hail coverage rather than a continuous, uniform swath. Inspectors should expect concentrated damage in and immediately around the coordinates where spotters logged half-dollar and ping-pong ball stones at 11:00 PM CDT to 11:48 PM CDT, with more sporadic, smaller impacts elsewhere across the warning area.

What Contractors Should Know

Prioritize inspections for properties near the late-evening spotter reports. Start with structures and vehicles within the immediate vicinity of the 11:00 PM CDT and 11:11 PM CDT mPING locations. Photograph roof surfaces, siding, HVAC units, and vehicles before any disturbance. Measure and document hail dents and granule loss with a ruler and scale photo; note the time and GPS location for each finding. Use the spotter times as triggers for targeted canvassing rather than broad-area inspections.

Eleva, WI Hail Storm – August 2026

NWS WARNING AREAS · 87

What Happened

Damage Assessment

What Contractors Should Know

Storm Details

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