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 01:15 UTC. It is kept here as a record.
It is the 5th strongest of the 36 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 17 at 7:30PM CDT until May 17 at 8:15PM CDT by NWS Topeka KS
An estimated 294,757 people live within 50 km of this point.
Nearby, since 16 March 2026
- April 25, 2026 · score 43 · 5.2 km
- May 31, 2026 · score 49 · 7.5 km
- May 18, 2026 · score 34 · 14.5 km
How we know
Confirmed by 17 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 90 % 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) | 43 / 100 |
| Our confidence | 90% |
| Coordinates | 40.9584, -97.1251 |
| Nearest City | Lincoln (42 km) |
| Population Exposed | 294.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-18T00:30:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.ea40d5d677b26e4c243bdd2bd568a662 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Ottawa, KS; Barton, KS; Ellsworth, KS; Lincoln, KS; Russell, KS; Mitchell, KS and 15 more areas |
| Headline | Severe Thunderstorm Warning issued May 17 at 7:30PM CDT until May 17 at 8:15PM CDT by NWS Topeka KS |
| Expires | 2026-05-17T20:15:00-05:00 |
| SenderName | NWS Topeka KS |
| HasExactCoords | true |
| MergedCount | 18 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.ea40d5d677b26e4c243bdd2bd568a662c2d004c6.001.1","noaa_urn:oid:2.49.0.1.840.0.56d65eeb241bba5d6cd933cf83fe4a9321f8bbc8.001.1","noaa_urn:oid:2.49.0.1.840.0.29399f3214f0d992b0d8497529d34a31393a639d.001.1","noaa_urn:oid:2.49.0.1.840.0.f00a3e275dfbef0eef25d7095da6ea846bfb5435.001.1","noaa_urn:oid:2.49.0.1.840.0.0b18dcca6b9f94570ab0219b155118e2f64697f4.001.1","noaa_urn:oid:2.49.0.1.840.0.e2addf5b5703b4788c824e17acd1085fcfe38195.001.1","noaa_urn:oid:2.49.0.1.840.0.c83a8a4e9da708368c22681da5b7c4d2ab42f04a.001.1","noaa_urn:oid:2.49.0.1.840.0.a96895b0a88f28f1b7e92515d1fe7c4e0d56efab.002.1","noaa_urn:oid:2.49.0.1.840.0.3d82d0c54865a2aaf33fa6cec9ac4bdea722d399.001.1","noaa_urn:oid:2.49.0.1.840.0.838fd0160f83584e2155ef4181f3a6c9a588179f.001.1","noaa_urn:oid:2.49.0.1.840.0.cebb793fd634628263ab662363a931110749dfa4.001.1","noaa_urn:oid:2.49.0.1.840.0.bcc19861a2e398bf1a90dce975ee8b347a2addfe.001.1","noaa_urn:oid:2.49.0.1.840.0.a7f8514dad92de120fbefb143a3140b44ca62ab3.001.1","noaa_urn:oid:2.49.0.1.840.0.f3e29a74d6e271116a3fd283f82e373f27e2ff17.001.1","noaa_urn:oid:2.49.0.1.840.0.b477fa7464964465907d29a22d386d1fd838310b.001.1","noaa_urn:oid:2.49.0.1.840.0.8db218a83a132ce69786b411a1b0f640f38fa67f.001.1","noaa_urn:oid:2.49.0.1.840.0.f14f3d4ee004317aee50270b4707574329167f1d.001.1","noaa_urn:oid:2.49.0.1.840.0.4c0695ff5786370f3033746f9b4e9e27ff9e0860.002.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 53 |
| Iem Unit | MPH |
| Iem City | 5 SW Silver Creek |
| Iem County | Merrick |
| Iem State | NE |
| Iem Wfo | GID |
| Google News RssFeed | weather |
| Google News SourceName | Lincoln Journal Star |
| MergedSources | [{"id":"iem_G_40.420_-97.590_1779059280000","source":"iem","severity":"low","severityValue":25,"timestamp":1779059280000,"latitude":40.42,"longitude":-97.59},{"id":"iem_D_40.650_-97.280_1779060900000","source":"iem","severity":"low","severityValue":25,"timestamp":1779060900000,"latitude":40.65,"longitude":-97.28},{"id":"iem_G_40.470_-97.600_1779059280000","source":"iem","severity":"low","severityValue":25,"timestamp":1779059280000,"latitude":40.47,"longitude":-97.6},{"id":"iem_G_40.480_-97.580_1779059400000","source":"iem","severity":"low","severityValue":25,"timestamp":1779059400000,"latitude":40.48,"longitude":-97.58},{"id":"iem_G_41.600_-97.300_1779060540000","source":"iem","severity":"low","severityValue":25,"timestamp":1779060540000,"latitude":41.6,"longitude":-97.3},{"id":"iem_H_41.220_-97.840_1779060780000","source":"iem","severity":"low","severityValue":25,"timestamp":1779060780000,"latitude":41.22,"longitude":-97.84},{"id":"iem_G_40.550_-97.560_1779059700000","source":"iem","severity":"low","severityValue":25,"timestamp":1779059700000,"latitude":40.55,"longitude":-97.56},{"id":"iem_G_41.560_-97.460_1779060000000","source":"iem","severity":"low","severityValue":25,"timestamp":1779060000000,"latitude":41.56,"longitude":-97.46},{"id":"iem_G_41.400_-97.600_1779059640000","source":"iem","severity":"low","severityValue":25,"timestamp":1779059640000,"latitude":41.4,"longitude":-97.6},{"id":"iem_D_41.450_-97.730_1779059520000","source":"iem","severity":"low","severityValue":25,"timestamp":1779059520000,"latitude":41.45,"longitude":-97.73},{"id":"iem_H_40.750_-97.850_1779059160000","source":"iem","severity":"low","severityValue":25,"timestamp":1779059160000,"latitude":40.75,"longitude":-97.85},{"id":"iem_G_40.470_-97.630_1779059220000","source":"iem","severity":"low","severityValue":25,"timestamp":1779059220000,"latitude":40.47,"longitude":-97.63},{"id":"iem_G_41.290_-97.740_1779059700000","source":"iem","severity":"low","severityValue":25,"timestamp":1779059700000,"latitude":41.29,"longitude":-97.74},{"id":"gnews_weather_494179_134","source":"google_news","severity":"medium","severityValue":40,"timestamp":1779044640000,"latitude":40.8,"longitude":-96.67},{"id":"gnews_weather_494179_151","source":"google_news","severity":"medium","severityValue":40,"timestamp":1779045572000,"latitude":40.8,"longitude":-96.67},{"id":"gnews_weather_494180_165","source":"google_news","severity":"medium","severityValue":40,"timestamp":1779050700000,"latitude":40.8,"longitude":-96.67}] |
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 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.