This alert expired on 25 June 2026 at 02:30 UTC. It is kept here as a record.
No stronger detection stands among the 169 recorded within 20 km of this point since 15 March 2026 — 15 others scored the same. Another comparable one was recorded here earlier the same day. 20 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 24 at 6:44PM CDT until June 24 at 9:30PM CDT by NWS Green Bay WI
An estimated 315,031 people live within 50 km of this point.
Nearby, since 15 March 2026
- July 21, 2026 · score 43 · 2.1 km
- July 8, 2026 · score 43 · 7.1 km
- June 24, 2026 · score 43 · 16.9 km
How we know
Confirmed by 23 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 89 % 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) | 43 / 100 |
| Our confidence | 89% |
| Coordinates | 44.4986, -88.0657 |
| Nearest City | Ashwaubenon (2 km) |
| Population Exposed | 315.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-24T23:44:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.9ea04b6b7f2f94f17f984d5486c42a46a0380a44.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Brown, WI |
| Headline | Flash Flood Warning issued June 24 at 6:44PM CDT until June 24 at 9:30PM CDT by NWS Green Bay WI |
| Expires | 2026-06-24T21:30:00-05:00 |
| SenderName | NWS Green Bay WI |
| HasExactCoords | true |
| Iem TypeSummary | R |
| Iem Magnitude | 1.16 |
| Iem Unit | Inch |
| Iem City | 4 SE Rose Lawn |
| Iem County | Outagamie |
| Iem State | WI |
| Iem Wfo | GRB |
| Iem Remark | Mesonet station DW7584 Seymour. |
| MergedSources | [{"id":"iem_R_44.500_-88.110_1782345780000","source":"iem","severity":"low","severityValue":25,"timestamp":1782345780000,"latitude":44.5,"longitude":-88.11},{"id":"iem_H_44.550_-88.090_1782341520000","source":"iem","severity":"low","severityValue":25,"timestamp":1782341520000,"latitude":44.55,"longitude":-88.09},{"id":"iem_H_44.660_-88.230_1782339900000","source":"iem","severity":"low","severityValue":25,"timestamp":1782339900000,"latitude":44.66,"longitude":-88.23},{"id":"iem_R_44.500_-88.060_1782348600000","source":"iem","severity":"low","severityValue":25,"timestamp":1782348600000,"latitude":44.5,"longitude":-88.06},{"id":"iem_R_44.500_-88.090_1782348420000","source":"iem","severity":"low","severityValue":25,"timestamp":1782348420000,"latitude":44.5,"longitude":-88.09},{"id":"iem_H_44.540_-88.100_1782342000000","source":"iem","severity":"low","severityValue":25,"timestamp":1782342000000,"latitude":44.54,"longitude":-88.1},{"id":"iem_H_44.460_-88.030_1782331980000","source":"iem","severity":"low","severityValue":25,"timestamp":1782331980000,"latitude":44.46,"longitude":-88.03},{"id":"iem_F_44.520_-88.030_1782344400000","source":"iem","severity":"low","severityValue":25,"timestamp":1782344400000,"latitude":44.52,"longitude":-88.03},{"id":"iem_H_44.520_-88.060_1782342000000","source":"iem","severity":"low","severityValue":25,"timestamp":1782342000000,"latitude":44.52,"longitude":-88.06},{"id":"iem_H_44.530_-88.060_1782342060000","source":"iem","severity":"low","severityValue":25,"timestamp":1782342060000,"latitude":44.53,"longitude":-88.06},{"id":"iem_R_44.540_-88.050_1782348300000","source":"iem","severity":"low","severityValue":25,"timestamp":1782348300000,"latitude":44.54,"longitude":-88.05},{"id":"iem_H_44.760_-88.250_1782339600000","source":"iem","severity":"low","severityValue":25,"timestamp":1782339600000,"latitude":44.76,"longitude":-88.25},{"id":"iem_F_44.500_-88.000_1782346680000","source":"iem","severity":"low","severityValue":25,"timestamp":1782346680000,"latitude":44.5,"longitude":-88},{"id":"iem_F_44.490_-88.070_1782344520000","source":"iem","severity":"low","severityValue":25,"timestamp":1782344520000,"latitude":44.49,"longitude":-88.07},{"id":"iem_H_44.550_-88.050_1782342180000","source":"iem","severity":"low","severityValue":25,"timestamp":1782342180000,"latitude":44.55,"longitude":-88.05},{"id":"iem_F_44.520_-88.010_1782344580000","source":"iem","severity":"low","severityValue":25,"timestamp":1782344580000,"latitude":44.52,"longitude":-88.01},{"id":"iem_H_44.490_-88.090_1782331620000","source":"iem","severity":"low","severityValue":25,"timestamp":1782331620000,"latitude":44.49,"longitude":-88.09},{"id":"iem_H_44.460_-88.070_1782332220000","source":"iem","severity":"low","severityValue":25,"timestamp":1782332220000,"latitude":44.46,"longitude":-88.07},{"id":"iem_H_44.710_-88.380_1782339240000","source":"iem","severity":"low","severityValue":25,"timestamp":1782339240000,"latitude":44.71,"longitude":-88.38},{"id":"iem_H_44.590_-88.140_1782341040000","source":"iem","severity":"low","severityValue":25,"timestamp":1782341040000,"latitude":44.59,"longitude":-88.14},{"id":"iem_H_44.580_-88.090_1782341040000","source":"iem","severity":"low","severityValue":25,"timestamp":1782341040000,"latitude":44.58,"longitude":-88.09},{"id":"iem_R_44.540_-88.250_1782331200000","source":"iem","severity":"low","severityValue":25,"timestamp":1782331200000,"latitude":44.54,"longitude":-88.25}] |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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.
Want to know when something happens near Ashwaubenon?
Calamity.live data shows a weather event with CalamityScore 43/100, near Ashwaubenon (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.