Right now
The most recent data we hold from NOAA arrived 7 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 1 July 2026 at 03:00 UTC. It is kept here as a record.
It is the 11th strongest of the 139 detections recorded within 20 km of this point since 10 March 2026. The last comparable one was on 30 June 2026. 19 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Watch issued June 30 at 7:41PM CDT until June 30 at 10:00PM CDT by NWS Green Bay WI
Nearby, since 10 March 2026
- September 2, 2026 · score 16 · 0.0 km
- August 11, 2026 · score 22 · 0.0 km
- August 9, 2026 · score 22 · 0.0 km
How we know
Confirmed by 7 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.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
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 | 2026-07-01T00:41:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Watch_noaa_urn:oid:2.49.0.1.840.0.be6e887f2303afbcdba135bfc6ea52cd |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Brown, WI; Door, WI; Kewaunee, WI; Marathon, WI; Menominee, WI; Oconto, WI; Outagamie, WI; Portage, WI; Shawano, WI; Waupaca, WI; Wood, WI; Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI; Green Bay south of line from Oconto WI to Little Sturgeon Bay WI; Sturgeon Bay to Two Rivers WI |
| Headline | Severe Thunderstorm Watch issued June 30 at 7:41PM CDT until June 30 at 10:00PM CDT by NWS Green Bay WI |
| Expires | 2026-06-30T22:00:00-05:00 |
| SenderName | NWS Green Bay WI |
| HasExactCoords | false |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.be6e887f2303afbcdba135bfc6ea52cd2111a70c.002.1","noaa_urn:oid:2.49.0.1.840.0.be6e887f2303afbcdba135bfc6ea52cd2111a70c.003.1"] |
| Iem TypeSummary | I |
| Iem Magnitude | 107 |
| Iem Unit | F |
| Iem City | 1 ESE Plover |
| Iem County | Portage |
| Iem State | WI |
| Iem Wfo | GRB |
| Iem Remark | Mesonet station WIPVR Plover. |
| MergedSources | [{"id":"iem_I_44.330_-89.020_1782846900000","source":"iem","severity":"low","severityValue":25,"timestamp":1782846900000,"latitude":44.33,"longitude":-89.02},{"id":"iem_I_44.060_-89.290_1782846720000","source":"iem","severity":"low","severityValue":25,"timestamp":1782846720000,"latitude":44.06,"longitude":-89.29},{"id":"iem_I_44.340_-89.110_1782849420000","source":"iem","severity":"low","severityValue":25,"timestamp":1782849420000,"latitude":44.34,"longitude":-89.11},{"id":"iem_I_44.400_-89.800_1782846000000","source":"iem","severity":"low","severityValue":25,"timestamp":1782846000000,"latitude":44.4,"longitude":-89.8},{"id":"iem_I_44.030_-89.300_1782849360000","source":"iem","severity":"low","severityValue":25,"timestamp":1782849360000,"latitude":44.03,"longitude":-89.3},{"id":"iem_I_44.450_-89.520_1782847500000","source":"iem","severity":"low","severityValue":25,"timestamp":1782847500000,"latitude":44.45,"longitude":-89.52}] |
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 8 March 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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