Data current as of 2026-10-16 · Sourced from NOAA Storm Events
Over the past five years, the National Oceanic and Atmospheric Administration has recorded 33 hail storms within 25 miles of Manitowoc, WI. Of those, 22 produced hail at least quarter-size — the threshold most insurance carriers consider potentially damaging to asphalt shingles. The largest reported hail in this window was egg-sized, which can fracture shingle mat and dent metal flashing on contact. 2026 was the most active year on record locally, with 24 documented hail events.
Check Hail History for a Specific Address in Manitowoc| Severity | Count | What it means for roofs |
|---|---|---|
| Destructive | 2 events | Egg-size, expect mat fractures and gutter damage |
| Severe | 1 event | Ping pong-size, granule loss and bruising common |
| Significant | 19 events | Quarter-size, the standard insurance damage threshold |
| Moderate | 9 events | Marble-size, possible cosmetic damage |
| Minor | 2 events | Pea-size, unlikely to damage modern shingles |
| Year | Reported Hail Events Within 25 mi |
|---|---|
| 2026 | 24 events |
| 2024 | 2 events |
| 2023 | 2 events |
| 2022 | 5 events |
2026 was the busiest hail year on record locally for Manitowoc, with 24 documented events inside the 25-mile radius. Storm activity in Manitowoc typically peaks in spring and early summer, when the jet stream pushes Gulf moisture into the area and supercell thunderstorms become more frequent.
| Date | Location | Severity | Size | NOAA Comments |
|---|---|---|---|---|
| 2026-07-01 | 1 S Howards Grove, WI | Significant | 1.00" | From social media. Time est from radar. |
| 2026-07-01 | 2 WNW Sheboygan, WI | Significant | 1.00" | Time est from radar. |
| 2026-07-01 | 2 WNW Sheboygan, WI | Significant | 1.25" | mPING. Time est from radar. |
| 2026-07-01 | 2 N Sheboygan, WI | Destructive | 2.00" | Time est from radar. |
| 2026-07-01 | 1 NW Sheboygan, WI | Destructive | 2.25" | From social media picture. Time est from radar. |
| 2026-06-16 | Denmark, WI | Moderate | 0.50" | Report from mPING: Half-inch (0.50 in.). |
| 2026-06-16 | Denmark, WI | Moderate | 0.50" | Report from mPING: Half-inch (0.50 in.). |
| 2026-06-16 | 1 E Kellnersville, WI | Moderate | 0.50" | Report from mPING: Half-inch (0.50 in.). |
| 2026-03-31 | MOSEL, WI | Significant | 1.00" | Picture of one inch hail provided. |
| 2026-03-31 | MILLERSVILLE, WI | Significant | 1.25" | — |
| 2026-03-31 | 1 S Howards Grove, WI | Significant | 1.25" | Report from mPING: Half Dollar (1.25 in.). |
| 2026-03-31 | 2 W Sheboygan, WI | Significant | 1.00" | Public report of quarter sized hail with photos in Sheboygan. |
| 2026-03-31 | 4 NNW Sheboygan, WI | Significant | 1.00" | Picture of quarter sized hail in the town of Mosel. |
| 2026-03-31 | 1 S Brillion, WI | Significant | 1.00" | Report from mPING: Quarter (1.00 in.). |
| 2026-03-31 | 2 W Manitowoc, WI | Minor | 0.25" | — |
| 2026-03-31 | Whitelaw, WI | Moderate | 0.50" | — |
| 2026-03-31 | 2 NE Wayside, WI | Moderate | 0.50" | Report from mPING: Half-inch (0.50 in.). |
| 2026-03-30 | SHEBOYGAN, WI | Significant | 1.00" | Pictured provided of one inch hail. |
| 2026-03-30 | BRILLION, WI | Significant | 1.00" | Quarter size hail fell in Brillion. |
| 2026-03-07 | 2 E Millhome, WI | Minor | 0.25" | — |
NOAA has recorded 43 high-wind events within 25 miles of Manitowoc, WI in the past five years. Of those, 39 reached severe-thunderstorm thresholds (58+ mph). The highest measured gust was 81 mph.
| Severity | Count |
|---|---|
| Severe | 16 events |
| Significant | 23 events |
| Moderate | 4 events |
| Date | Location | Gust (mph) | Severity | NOAA Comments |
|---|---|---|---|---|
| 2026-09-02 | 3 SW Shoto, WI | 41 | Moderate | Measured at the Manitowoc County Airport. |
| 2026-06-11 | 3 NNW Sheboygan Falls, WI | 59 | Significant | Sheboygan airport. |
| 2026-06-11 | 1 ESE Sheboygan, WI | 43 | Moderate | Sheboygan C-Man SGNW3. |
| 2026-06-11 | (SBM)SHEBOYGAN CO AR, WI | 59 | Significant | ASOS at Sheboygan County Airport measures a 59 MPH wind gust. |
| 2026-06-10 | FRANKLIN, WI | 60 | Significant | Emergency manager relays reports of many downed trees and power lines across the northern half of Sheboygan County. Wind gust estimated from nearby observations, radar data, and damage. |
| 2026-06-06 | 2 ESE Potter, WI | 41 | Moderate | Mesonet station WIBLN Brillion. |
| 2026-06-06 | 3 NNW Osman, WI | 41 | Moderate | Mesonet station WIVLR Valders. |
| 2026-05-17 | HOWARDS GROVE, WI | 70 | Severe | Four power poles down. |
| 2026-05-17 | HAYTON, WI | 70 | Severe | Thunderstorm winds damaged a barn near Shoto. The time of this report is an estimate based on radar data. |
| 2026-05-17 | HAYTON, WI | 70 | Severe | Thunderstorm winds produced damage to a barn and flipped a trailer southeast of Chilton. The time of this report is an estimate based on radar data. |
| 2026-05-17 | TWO RIVERS, WI | 81 | Severe | Thunderstorm winds snapped and uprooted over 100 trees, power lines, and power poles in Two Rivers. 3,500 were without power with over $100,000 worth of damage. |
| 2026-05-17 | SHOTO, WI | 70 | Severe | Thunderstorm winds downed trees west of Two Rivers. The time of this report is an estimate based on radar data. |
| 2026-04-27 | 1 ESE Sheboygan, WI | 51 | Significant | East southeast wind gust at 44 kt. |
| 2026-04-12 | 3 NNW Sheboygan Falls, WI | 56 | Significant | 49 knot gust at Sheboygan County Memorial Airport ASOS. |
| 2026-04-12 | 2 NNW Manitowoc, WI | 49 | Significant | AWOS station KMTW Manitowoc Airport. |
| 2025-07-16 | KOHLER, WI | 60 | Significant | Multiple reports of trees and large branches down as well as a power pole on fire. |
| 2025-06-19 | KIEL, WI | 60 | Significant | Thunderstorm winds snapped a tree and uprooted another tree in Kiel. The time of this report is an estimate based on radar. |
| 2025-06-19 | HERMAN, WI | 70 | Severe | The garage door to an outbuilding buckled and another garage door to a different building was blown-in. A portion of the roof to one of the buildings peeled off and was blown to the southeast. Damage to multiple trees in the area, one uprooted. |
| 2025-05-16 | LARK, WI | 62 | Significant | A thunderstorm produced a wind gust to 62 mph at a mesonet site near De Pere. |
| 2025-05-15 | (SBM)SHEBOYGAN CO AR, WI | 63 | Significant | Southwest wind sustained at 46 mph gusting to 63 mph at Sheboygan airport. |
The most recent quarter-size-or-larger hail storm recorded by NOAA within 25 miles of Manitowoc was on July 1, 2026. HailCheck refreshes from the NOAA Storm Events database daily, so newer events appear here as they are reported.
Manitowoc averages roughly 7 reported hail events per year within a 25-mile radius. Significant storms (quarter-size or larger) account for 22 of the 33 events recorded over the last five years.
The largest documented hail near Manitowoc in the last five years was egg-sized. Most Manitowoc-area hail falls in the marble-to-quarter range, with destructive storms (egg-size or larger) appearing roughly once every few years.
Most homeowners insurance policies in WI cover hail damage to roofs, siding, and gutters under the dwelling and other-structures coverage. Coverage typically requires the damage to be tied to a verifiable storm date — which is where the NOAA hail history above (and a HAAG-style test square validation) becomes important for the claim file.
Use the HailCheck address search to enter any street address in or near Manitowoc. HailCheck returns every NOAA hail event within a configurable radius, along with severity bands, dates, and storm narratives for Pro members.
If your property in or near Manitowoc took on hail during one of the storms above, the standard process for documenting damage is a 10×10 foot test square inspection. A HAAG-trained reviewer counts impact indicators — granule displacement, mat fractures, and bruising — within the marked square and produces a PASS or FAIL document for the claim file.
HailCheck offers a $99 photo-based HAAG-style test square validation. You submit photos from the field, our reviewer evaluates the impact indicators and cross-references the NOAA storm dates listed above, and a written PASS/FAIL determination is returned within one business day. We do not send anyone to the roof — the validation is built around the photos you submit.
Learn About $99 HAAG-Style ValidationManitowoc sits east of the traditional hail alley, where hail events are less frequent than the central plains but tend to be associated with strong squall lines and tropical systems. Local roof systems are less commonly hardened for hail, which can mean even moderate impacts produce claim-worthy damage.