Right now
The most recent data we hold from NOAA arrived 5 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
3 other detections within 20 km in the last 24 hours, the nearest 24 km from here.
This alert expired on 2 July 2026 at 01:45 UTC. It is kept here as a record.
No stronger detection stands among the 35 recorded within 20 km of this point since 23 April 2026 — 5 others scored the same. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued July 1 at 8:39PM CDT until July 1 at 8:45PM CDT by NWS Sioux Falls SD
Nearby, since 23 April 2026
- May 22, 2026 · score 46 · 8.0 km
- July 8, 2026 · score 39 · 8.9 km
- June 13, 2026 · score 39 · 20.3 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 58 % 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) | 46 / 100 |
| Our confidence | 58% |
| Coordinates | 42.3850, -95.7450 |
| Nearest City | Sioux City (55 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-02T01:39:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.6a2ca401d5dfa6bd24fd03bf28081002ab1f92be.001.1 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Ida, IA; Woodbury, IA |
| Headline | Tornado Warning issued July 1 at 8:39PM CDT until July 1 at 8:45PM CDT by NWS Sioux Falls SD |
| Expires | 2026-07-01T20:45:00-05:00 |
| SenderName | NWS Sioux Falls SD |
| HasExactCoords | true |
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 46/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.