Right now
The most recent data we hold from NOAA arrived 2 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 23:30 UTC. It is kept here as a record.
It is the 2nd strongest of the 54 detections recorded within 20 km of this point since 15 March 2026. 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: Severe Thunderstorm Warning issued May 18 at 6:05PM CDT until May 18 at 6:30PM CDT by NWS Des Moines IA
An estimated 640,589 people live within 50 km of this point.
Nearby, since 15 March 2026
- July 9, 2026 · score 48 · 4.2 km
- June 13, 2026 · score 48 · 10.5 km
- September 7, 2026 · score 41 · 15.8 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 48 out of 100, at 84 % 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) | 48 / 100 |
| Our confidence | 84% |
| Coordinates | 41.1250, -95.7021 |
| Nearest City | Bellevue (16 km) |
| Population Exposed | 640.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-18T23:05:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.5bbaf7ceda07f5462878ab72e60665d3 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Adams, IA; Taylor, IA; Seward, NE; Page, IA and 3 more areas |
| Headline | Severe Thunderstorm Warning issued May 18 at 6:05PM CDT until May 18 at 6:30PM CDT by NWS Des Moines IA |
| Expires | 2026-05-18T18:30:00-05:00 |
| SenderName | NWS Des Moines IA |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.5bbaf7ceda07f5462878ab72e60665d315e49b87.001.1","noaa_urn:oid:2.49.0.1.840.0.fd7cd85eedacb7449fbdc583a4d3576f9b6e5133.002.1","noaa_urn:oid:2.49.0.1.840.0.4f675c0c7044596396d689f0fb0aec926f1c3911.001.1","noaa_urn:oid:2.49.0.1.840.0.2f4148bf4357f61b7bdbbcad21be68eed75809f6.001.1","noaa_urn:oid:2.49.0.1.840.0.b15b1c4c7d1292c7fc090706e69969642f9df63a.001.1","noaa_urn:oid:2.49.0.1.840.0.7e220cb01d54fa26de2cdf5328715ae30a3580c1.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.5 |
| Iem Unit | Inch |
| Iem City | 4 S Farragut |
| Iem County | Fremont |
| Iem State | IA |
| Iem Wfo | OAX |
| Iem Remark | Ping pong ball size hail reported south of Farragut. |
| MergedSources | [{"id":"iem_H_40.660_-95.490_1779141840000","source":"iem","severity":"low","severityValue":25,"timestamp":1779141840000,"latitude":40.66,"longitude":-95.49}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
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 near Bellevue?