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 01:00 UTC. It is kept here as a record.
No stronger detection stands among the 26 recorded within 20 km of this point since 15 March 2026 — 5 others scored the same. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued May 17 at 7:40PM CDT until May 17 at 8:00PM CDT by NWS Wichita KS
Nearby, since 15 March 2026
- July 4, 2026 · score 22 · 3.0 km
- July 30, 2026 · score 22 · 20.4 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 | 39.5581, -97.6193 |
| Nearest City | Salina (80 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-18T00:40:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.b86c87f2681eac2c8bf928f71f6742d6 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Lincoln, KS; Ottawa, KS; Gage, NE; Jefferson, NE; Lancaster, NE; Saline, NE |
| Headline | Tornado Warning issued May 17 at 7:40PM CDT until May 17 at 8:00PM CDT by NWS Wichita KS |
| Expires | 2026-05-17T20:00:00-05:00 |
| SenderName | NWS Wichita KS |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b86c87f2681eac2c8bf928f71f6742d697ffa17e.001.1","noaa_urn:oid:2.49.0.1.840.0.a82bd052ba97f218edbd05ce274bd725cab5a524.001.1","noaa_urn:oid:2.49.0.1.840.0.fb3ae683cb98bff3f20632ce576285cedf4e7215.001.1"] |
| Iem TypeSummary | T |
| Iem City | 2 SSW Hebron |
| Iem County | Thayer |
| Iem State | NE |
| Iem Wfo | GID |
| Iem Remark | Family member of NWS employee. |
| MergedSources | [{"id":"iem_H_40.020_-98.120_1779057360000","source":"iem","severity":"low","severityValue":25,"timestamp":1779057360000,"latitude":40.02,"longitude":-98.12},{"id":"iem_H_40.040_-98.070_1779057600000","source":"iem","severity":"low","severityValue":25,"timestamp":1779057600000,"latitude":40.04,"longitude":-98.07},{"id":"iem_G_40.180_-97.780_1779060600000","source":"iem","severity":"low","severityValue":25,"timestamp":1779060600000,"latitude":40.18,"longitude":-97.78},{"id":"iem_H_39.470_-98.130_1779060900000","source":"iem","severity":"low","severityValue":25,"timestamp":1779060900000,"latitude":39.47,"longitude":-98.13},{"id":"iem_G_39.500_-98.310_1779058140000","source":"iem","severity":"low","severityValue":25,"timestamp":1779058140000,"latitude":39.5,"longitude":-98.31},{"id":"iem_H_40.010_-97.770_1779059400000","source":"iem","severity":"low","severityValue":25,"timestamp":1779059400000,"latitude":40.01,"longitude":-97.77},{"id":"iem_H_40.140_-97.730_1779060840000","source":"iem","severity":"low","severityValue":25,"timestamp":1779060840000,"latitude":40.14,"longitude":-97.73},{"id":"iem_G_40.130_-97.800_1779059940000","source":"iem","severity":"low","severityValue":25,"timestamp":1779059940000,"latitude":40.13,"longitude":-97.8},{"id":"iem_T_40.140_-97.600_1779061380000","source":"iem","severity":"low","severityValue":25,"timestamp":1779061380000,"latitude":40.14,"longitude":-97.6}] |
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.