Pilot Index / Wisconsin / Aug 18, 2026

Preliminary

Storms in Wisconsin on Aug 18, 2026

8 published severe reports across Wisconsin on Aug 18, 2026.

Updated Oct 28, 2026.

Coverage is partial. 472 source scopes are pending. Pending data is not a zero report count.

Hail reports: 5. Wind reports: 2. Tornado reports: 1.

The table and map show 8 of 8 reports.

TimeWhatSize or SpeedWhereDetails
Aug 18, 2026, 3:16 PM CDTWind67 mph2 NNE French Island
Record
  • Aug 18, 2026, 3:16 PM CDT. Wind, 67 mph, 2 NNE French Island. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:11ab0737f9af22f2eb523ed822953501b485e36de40fe1b6c0ff20917a539989.
Aug 18, 2026, 3:19 PM CDTHail1.00 in2 S Holmen
Record
  • Aug 18, 2026, 3:19 PM CDT. Hail, 1.00 in, 2 S Holmen. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:305164f94a5840e1b0ced16119c740283e9e313fd61d3d71fbc74f793ce4a251.
Aug 18, 2026, 3:23 PM CDTHail1.25 in1 WNW Onalaska
Record
  • Aug 18, 2026, 3:23 PM CDT. Hail, 1.25 in, 1 WNW Onalaska. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:98ba1c6a4cbd37f42aacb224987115f1c84d1406021c76121734615e5157015b.
Aug 18, 2026, 3:24 PM CDTHail1.00 in1 NE Onalaska
Record
  • Aug 18, 2026, 3:24 PM CDT. Hail, 1.00 in, 1 NE Onalaska. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:879f15fb90126b566cb1810c50992921232b42e90ce62566b6000bf4737aacc9.
Aug 18, 2026, 4:15 PM CDTWind61 mph3.4 NE Richford
Record
  • Aug 18, 2026, 4:15 PM CDT. Wind, 61 mph, 3.4 NE Richford. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:0a2f0dd39f00efa15d430c303c1de6a9dcf1645375610c93540046256a4ec345.
Aug 18, 2026, 4:50 PM CDTHail1.00 in1 SSE Fond Du Lac
Record
  • Aug 18, 2026, 4:50 PM CDT. Hail, 1.00 in, 1 SSE Fond Du Lac. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:086c55f6c3303f16aecc8587675c8837fdbb7f2fc2c2d07de10fef2a6e4e3e08.
Aug 18, 2026, 4:50 PM CDTHail1.00 in1 NE Fond Du Lac
Record
  • Aug 18, 2026, 4:50 PM CDT. Hail, 1.00 in, 1 NE Fond Du Lac. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:8f7cbe6cb0b0a2cf68de123977aebfadf61c8e3011f23864249455161d542da4.
Aug 18, 2026, 6:33 PM CDTTornado1 SSW Hubertus
Record
  • Aug 18, 2026, 6:33 PM CDT. Tornado, 1 SSW Hubertus. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:1d9898b8a94227415cc653c88a86038385391f241542b5ce84ae47e39b7c3c66.
How We Count

This page uses published ground reports from 2016-01-01 through 2026-10-29. Coverage is partial. 472 source scopes are pending. Pending data is not a zero report count.

Hail counts at 1.00 in or larger. Wind counts at 58 mph or stronger. State days also include tornado reports.

Reports use the local civil date and clock. City pages use the city clock. State pages use each report location clock.

Exact repeated observations are counted once. Nearby reports with different times, coordinates or sizes remain separate observations.

NCEI rows are verified against NCEI Storm Events. SPC and NWS local reports are preliminary.

Radar signatures and warning polygons are not ground reports and are not in these counts.

A missing report does not show that no storm occurred. These pages show city or state exposure, not damage at an address.

This free page covers the state. It does not check a street address.

Limits

This page is not a certified record.

This page shows weather exposure, not damage or cause.

This page is not an expert opinion and it is not a meteorologist review.

Verify these rows with official NOAA and NWS records.

VectorWX is not affiliated with or endorsed by NOAA or NWS.

Radar-estimated hail size comes from MRMS MESH or NCEI nx3hail. It is an estimate of hail aloft. It is not a measurement of hail on a roof.