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 18 May 2026 at 03:15 UTC. It is kept here as a record.
No stronger detection stands among the 21 recorded within 20 km of this point since 15 March 2026 — 2 others scored the same. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued May 17 at 9:41PM CDT until May 17 at 10:15PM CDT by NWS Des Moines IA
Nearby, since 15 March 2026
- September 3, 2026 · score 16 · 22.5 km
How we know
Confirmed by 10 independent sources, including NOAA.
Our own score for this event is 46 out of 100, at 70 % 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 | 70% |
| Coordinates | 42.9605, -94.4625 |
| Nearest City | Fort Dodge (56 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-18T02:41:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.2b7f94cf7bbc609f35ecab8344526de5 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cerro Gordo, IA; Hancock, IA; Kossuth, IA; Winnebago, IA; Worth, IA; Faribault, MN; Martin, MN; Dickinson, IA and 7 more areas |
| Headline | Tornado Warning issued May 17 at 9:41PM CDT until May 17 at 10:15PM CDT by NWS Des Moines IA |
| Expires | 2026-05-17T22:15:00-05:00 |
| SenderName | NWS Des Moines IA |
| HasExactCoords | true |
| MergedCount | 10 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2b7f94cf7bbc609f35ecab8344526de534fd0b52.001.1","noaa_urn:oid:2.49.0.1.840.0.4c7e0816aec90c4a7dc8f8afe4a10d057ff2bf88.001.1","noaa_urn:oid:2.49.0.1.840.0.c64fd175d83dfb17b15e3f96dbb722fa662ecbc4.001.1","noaa_urn:oid:2.49.0.1.840.0.eb045e6892ea37be98792f0da1d1796789f4763d.002.1","noaa_urn:oid:2.49.0.1.840.0.38e339c5396dae925ac406c712835d6152a6b7ab.001.1","noaa_urn:oid:2.49.0.1.840.0.7bd05d1d592547926c0428c8bd8f5744224f0218.001.1","noaa_urn:oid:2.49.0.1.840.0.9cefd2ae582e6d5d7f9b95dc257b6479f676dfe7.001.1","noaa_urn:oid:2.49.0.1.840.0.e02c1e3df8a7d82f84493054f9e6918cde3406a5.001.1","noaa_urn:oid:2.49.0.1.840.0.1b35b763a22297008c05db048477a95b0fc9df6a.001.1","noaa_urn:oid:2.49.0.1.840.0.cf9218cb17068b63dbcc653337c4bdc638969370.001.1"] |
| Iem TypeSummary | T |
| Iem City | 2 SSE Havelock |
| Iem County | Pocahontas |
| Iem State | IA |
| Iem Wfo | DMX |
| Iem Remark | Between Pocahontas and Havelock. |
| MergedSources | [{"id":"iem_G_42.770_-94.950_1779069060000","source":"iem","severity":"low","severityValue":25,"timestamp":1779069060000,"latitude":42.77,"longitude":-94.95},{"id":"iem_T_43.350_-94.500_1779071280000","source":"iem","severity":"low","severityValue":25,"timestamp":1779071280000,"latitude":43.35,"longitude":-94.5},{"id":"iem_G_42.420_-94.990_1779069300000","source":"iem","severity":"low","severityValue":25,"timestamp":1779069300000,"latitude":42.42,"longitude":-94.99},{"id":"iem_G_43.350_-95.130_1779070320000","source":"iem","severity":"low","severityValue":25,"timestamp":1779070320000,"latitude":43.35,"longitude":-95.13},{"id":"iem_G_42.730_-94.950_1779068880000","source":"iem","severity":"low","severityValue":25,"timestamp":1779068880000,"latitude":42.73,"longitude":-94.95},{"id":"iem_G_42.600_-95.220_1779068100000","source":"iem","severity":"low","severityValue":25,"timestamp":1779068100000,"latitude":42.6,"longitude":-95.22},{"id":"iem_D_43.020_-95.150_1779068940000","source":"iem","severity":"low","severityValue":25,"timestamp":1779068940000,"latitude":43.02,"longitude":-95.15},{"id":"iem_T_42.550_-94.680_1779069660000","source":"iem","severity":"low","severityValue":25,"timestamp":1779069660000,"latitude":42.55,"longitude":-94.68},{"id":"iem_T_42.810_-94.680_1779069900000","source":"iem","severity":"low","severityValue":25,"timestamp":1779069900000,"latitude":42.81,"longitude":-94.68}] |
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.