This alert expired on 2 July 2026 at 12:30 UTC. It is kept here as a record.
No stronger detection stands among the 32 recorded within 20 km of this point since 15 March 2026 — 6 others scored the same. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued July 2 at 5:24AM CDT until July 2 at 7:30AM CDT by NWS La Crosse WI
An estimated 112,225 people live within 50 km of this point.
Nearby, since 15 March 2026
- May 18, 2026 · score 43 · 8.3 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 86 % 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 | 86% |
| Coordinates | 43.7125, -92.3083 |
| Nearest City | Rochester (37 km) |
| Population Exposed | 112.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-02T10:24:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.4089f792a4db100622809cfec6c45537a0c60a83.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Fillmore, MN; Houston, MN; Mower, MN |
| Headline | Flash Flood Warning issued July 2 at 5:24AM CDT until July 2 at 7:30AM CDT by NWS La Crosse WI |
| Expires | 2026-07-02T07:30:00-05:00 |
| SenderName | NWS La Crosse WI |
| HasExactCoords | true |
| Iem TypeSummary | F |
| Iem City | 1 S Dexter |
| Iem County | Mower |
| Iem State | MN |
| Iem Wfo | ARX |
| Iem Remark | Interstate 90- Elkton to Dexter, East and West bound is closed due to flooding. |
| MergedSources | [{"id":"iem_F_43.710_-92.700_1782985080000","source":"iem","severity":"low","severityValue":25,"timestamp":1782985080000,"latitude":43.71,"longitude":-92.7}] |
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 in this area?
Calamity.live data shows a weather event with CalamityScore 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.