This alert expired on 1 July 2026 at 21:00 UTC. It is kept here as a record.
It is the 11th strongest of the 134 detections recorded within 20 km of this point since 10 March 2026. Another comparable one was recorded here earlier the same day. 33 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Watch issued July 1 at 11:06AM CDT until July 1 at 4:00PM CDT by NWS Milwaukee/Sullivan WI
Nearby, since 10 March 2026
- August 11, 2026 · score 22 · 0.0 km
- August 9, 2026 · score 22 · 0.0 km
- August 8, 2026 · score 22 · 0.0 km
How we know
Confirmed by 15 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 70 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 70% |
| Coordinates | 43.8000, -89.6000 |
| Nearest City | Wisconsin Rapids (67 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-01T16:06:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Watch_noaa_urn:oid:2.49.0.1.840.0.cc05b4fe9ea0f798ad8c8250d5b76700 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Sheboygan to Port Washington WI; Lake Michigan from Sheboygan to Port Washington WI 5NM offshore to Mid Lake; Fond du Lac, WI; Green Lake, WI; Sheboygan, WI |
| Headline | Severe Thunderstorm Watch issued July 1 at 11:06AM CDT until July 1 at 4:00PM CDT by NWS Milwaukee/Sullivan WI |
| Expires | 2026-07-01T16:00:00-05:00 |
| SenderName | NWS Milwaukee/Sullivan WI |
| HasExactCoords | false |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.cc05b4fe9ea0f798ad8c8250d5b76700454fb78a.002.1","noaa_urn:oid:2.49.0.1.840.0.cc05b4fe9ea0f798ad8c8250d5b76700454fb78a.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 48 |
| Iem Unit | MPH |
| Iem City | 2 SSW Wautoma |
| Iem County | Waushara |
| Iem State | WI |
| Iem Wfo | GRB |
| MergedSources | [{"id":"iem_D_43.960_-89.830_1782903660000","source":"iem","severity":"low","severityValue":25,"timestamp":1782903660000,"latitude":43.96,"longitude":-89.83},{"id":"iem_H_43.730_-88.780_1782924600000","source":"iem","severity":"low","severityValue":25,"timestamp":1782924600000,"latitude":43.73,"longitude":-88.78},{"id":"iem_D_43.840_-89.850_1782903360000","source":"iem","severity":"low","severityValue":25,"timestamp":1782903360000,"latitude":43.84,"longitude":-89.85},{"id":"iem_D_43.820_-89.700_1782903780000","source":"iem","severity":"low","severityValue":25,"timestamp":1782903780000,"latitude":43.82,"longitude":-89.7},{"id":"iem_H_43.750_-88.670_1782925200000","source":"iem","severity":"low","severityValue":25,"timestamp":1782925200000,"latitude":43.75,"longitude":-88.67},{"id":"iem_D_43.670_-89.720_1782920700000","source":"iem","severity":"low","severityValue":25,"timestamp":1782920700000,"latitude":43.67,"longitude":-89.72},{"id":"iem_D_44.310_-88.990_1782907860000","source":"iem","severity":"low","severityValue":25,"timestamp":1782907860000,"latitude":44.31,"longitude":-88.99},{"id":"iem_H_43.750_-88.680_1782925200000","source":"iem","severity":"low","severityValue":25,"timestamp":1782925200000,"latitude":43.75,"longitude":-88.68},{"id":"iem_H_43.750_-88.680_1782925800000","source":"iem","severity":"low","severityValue":25,"timestamp":1782925800000,"latitude":43.75,"longitude":-88.68},{"id":"iem_H_43.460_-90.390_1782918000000","source":"iem","severity":"low","severityValue":25,"timestamp":1782918000000,"latitude":43.46,"longitude":-90.39},{"id":"iem_D_43.890_-89.780_1782903720000","source":"iem","severity":"low","severityValue":25,"timestamp":1782903720000,"latitude":43.89,"longitude":-89.78},{"id":"iem_D_43.940_-89.820_1782903660000","source":"iem","severity":"low","severityValue":25,"timestamp":1782903660000,"latitude":43.94,"longitude":-89.82},{"id":"iem_H_43.660_-89.210_1782923400000","source":"iem","severity":"low","severityValue":25,"timestamp":1782923400000,"latitude":43.66,"longitude":-89.21},{"id":"iem_G_44.040_-89.310_1782905760000","source":"iem","severity":"low","severityValue":25,"timestamp":1782905760000,"latitude":44.04,"longitude":-89.31}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 10 February 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
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Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.