Right now
The most recent data we hold from NOAA arrived 4 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 7 August 2026 at 21:34 UTC. It is kept here as a record.
No stronger detection stands among the 61 recorded within 20 km of this point since 16 March 2026 — 8 others scored the same. Another comparable one was recorded here earlier the same day. 15 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued August 7 at 4:25PM CDT until August 7 at 4:30PM CDT by NWS La Crosse WI
An estimated 109,715 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 11, 2026 · score 43 · 2.7 km
- July 5, 2026 · score 43 · 18.5 km
- July 2, 2026 · score 67 · 19.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 67 out of 100, at 78 % 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 | Critical |
| Calamity Score (ours) | 67 / 100 |
| Our confidence | 78% |
| Coordinates | 42.5694, -91.9254 |
| Nearest City | Waterloo (35 km) |
| Population Exposed | 109.7K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-08-07T21:25:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.2410c7bfa753046605a86fcb86647e1f |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Fayette, IA; Buchanan, IA |
| Headline | Tornado Warning issued August 7 at 4:25PM CDT until August 7 at 4:30PM CDT by NWS La Crosse WI |
| Expires | 2026-08-07T16:34:00-05:00 |
| SenderName | NWS La Crosse WI |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2410c7bfa753046605a86fcb86647e1f55830a26.001.1","noaa_urn:oid:2.49.0.1.840.0.0a44e84ac04dc44284075be58926dd60d171f04e.001.1","noaa_urn:oid:2.49.0.1.840.0.e2ae7946861c96eb9dd5e93ccb56aea6bf2fce49.001.1"] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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 67/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.