Right now
The most recent data we hold from NOAA arrived 8 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 17 May 2026 at 01:30 UTC. It is kept here as a record.
It is the 5th strongest of the 53 detections recorded within 20 km of this point since 15 April 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 16 at 8:03PM CDT until May 16 at 8:30PM CDT by NWS Kansas City/Pleasant Hill MO
Nearby, since 15 April 2026
- May 17, 2026 · score 46 · 11.0 km
- June 20, 2026 · score 22 · 13.9 km
- June 14, 2026 · score 16 · 22.6 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 69 % 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) | 22 / 100 |
| Our confidence | 69% |
| Coordinates | 40.2064, -96.7255 |
| Nearest City | Lincoln (66 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-17T01:03:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.d259f36ac63b30cba3d176000de130c6 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Grundy, MO; Sullivan, MO; Decatur, IA; Ringgold, IA; Linn, MO and 12 more areas |
| Headline | Severe Thunderstorm Warning issued May 16 at 8:03PM CDT until May 16 at 8:30PM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-05-16T20:30:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| MergedCount | 17 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d259f36ac63b30cba3d176000de130c651b8b10b.001.1","noaa_urn:oid:2.49.0.1.840.0.50cf8e0a526617db1dd8c17571a03e0f2121436a.001.1","noaa_urn:oid:2.49.0.1.840.0.10f719bbf1cd1da49c7f06873cdd471eed855270.002.1","noaa_urn:oid:2.49.0.1.840.0.86924e4eae41598680cb45a70e2d255a7150ab26.002.1","noaa_urn:oid:2.49.0.1.840.0.0967925a88a3682fbacce12475d8433a5b25aa4f.001.1","noaa_urn:oid:2.49.0.1.840.0.3377fed241d75909e604de0841ab7ec6ebff49f4.001.1","noaa_urn:oid:2.49.0.1.840.0.51474cdde712d5a088780dda57cb702578bb6e45.001.1","noaa_urn:oid:2.49.0.1.840.0.1c648ebccd340cfe9464f5dab6a609296a6b9f4c.001.1","noaa_urn:oid:2.49.0.1.840.0.d701af343c1b616771dad62f90c2095d448962b8.001.1","noaa_urn:oid:2.49.0.1.840.0.303fd68a4c7b3bbef798dbb182013f968ea810ac.001.1","noaa_urn:oid:2.49.0.1.840.0.483a4b16ba486be8eee5913444ea8890392c8fbd.001.1","noaa_urn:oid:2.49.0.1.840.0.42ea474a4692d7321c22b7c23867b86816dedab1.001.1","noaa_urn:oid:2.49.0.1.840.0.04c9059cf5907f23c3bf308b307bbe084a1fcef9.002.1","noaa_urn:oid:2.49.0.1.840.0.f81032a8a0ec913f3b2418029a91a68137f6ba58.002.1","noaa_urn:oid:2.49.0.1.840.0.c50b699e9c8b63efb6c834e60afd8fc2781606ba.001.1","noaa_urn:oid:2.49.0.1.840.0.30dc70d0f6ab5e7be16816347f05b88217510510.001.1","noaa_urn:oid:2.49.0.1.840.0.a585d5342ab34f060997d27116ffda4c87ca483f.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 4 W Plymouth |
| Iem County | Jefferson |
| Iem State | NE |
| Iem Wfo | OAX |
| Iem Remark | Report from emergency management relayed via NWSChat. |
| Google News RssFeed | weather |
| Google News SourceName | KOLN | Nebraska Local News, Weather, Sports | Lincoln, NE |
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 in this area?
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.