This alert expired on 11 June 2026 at 11:36 UTC. It is kept here as a record.
No stronger detection stands among the 32 recorded within 20 km of this point since 16 March 2026 — 4 others scored the same. Another comparable one was recorded here earlier the same day. 12 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 11 at 6:27AM CDT until June 11 at 6:30AM CDT by NWS Omaha/Valley NE
Nearby, since 16 March 2026
- June 6, 2026 · score 46 · 14.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 out of 100, at 61 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | critical |
| Calamity Score (ours) | 46 / 100 |
| Our confidence | 61% |
| Coordinates | 41.1026, -94.9617 |
| Nearest City | Council Bluffs (77 km) |
| Impact Tier | minor |
| Date | 2026-06-11 — time not reported by the source |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.5335d0aca0fd4792bbb16a36f4407e93 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Montgomery, IA; Page, IA; Adair, IA; Audubon, IA; Cass, IA; Guthrie, IA; Adair, IA; Adams, IA; Cass, IA; Taylor, IA |
| Headline | Tornado Warning issued June 11 at 6:27AM CDT until June 11 at 6:30AM CDT by NWS Omaha/Valley NE |
| Expires | 2026-06-11T06:36:00-05:00 |
| SenderName | NWS Omaha/Valley NE |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.5335d0aca0fd4792bbb16a36f4407e9312a7cef1.001.1","noaa_urn:oid:2.49.0.1.840.0.9e136432e55edada9bb084843e0c2ee52e8a5d21.001.1","noaa_urn:oid:2.49.0.1.840.0.96da5ede4539115476ef4f24da7a9813cc32a5ff.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 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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 46/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.