This alert expired on 21 June 2026 at 03:17 UTC. It is kept here as a record.
No stronger detection stands among the 84 recorded within 20 km of this point since 15 March 2026 — 11 others scored the same. Another comparable one was recorded here earlier the same day. 17 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 20 at 10:07PM CDT until June 20 at 10:15PM CDT by NWS Topeka KS
Nearby, since 15 March 2026
- June 13, 2026 · score 22 · 4.2 km
- May 18, 2026 · score 46 · 6.6 km
- July 4, 2026 · score 46 · 8.9 km
How we know
Confirmed by 9 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.
Event Data
| Type | Severe weather |
| Severity | critical |
| Calamity Score (ours) | 46 / 100 |
| Our confidence | 70% |
| Coordinates | 39.9325, -97.4900 |
| Nearest City | Hastings (106 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-21T03:07:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.44a24050ec0f92f981f7577f094c037c4fcdec04.001.1 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Republic, KS |
| Headline | Tornado Warning issued June 20 at 10:07PM CDT until June 20 at 10:15PM CDT by NWS Topeka KS |
| Expires | 2026-06-20T22:17:00-05:00 |
| SenderName | NWS Topeka KS |
| HasExactCoords | true |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 3 ESE Jansen |
| Iem County | Jefferson |
| Iem State | NE |
| Iem Wfo | OAX |
| MergedSources | [{"id":"iem_R_40.260_-97.450_1782010320000","source":"iem","severity":"low","severityValue":25,"timestamp":1782010320000,"latitude":40.26,"longitude":-97.45},{"id":"iem_R_40.290_-97.500_1782010320000","source":"iem","severity":"low","severityValue":25,"timestamp":1782010320000,"latitude":40.29,"longitude":-97.5},{"id":"iem_G_40.310_-98.020_1782007200000","source":"iem","severity":"low","severityValue":25,"timestamp":1782007200000,"latitude":40.31,"longitude":-98.02},{"id":"iem_G_40.030_-97.610_1782008880000","source":"iem","severity":"low","severityValue":25,"timestamp":1782008880000,"latitude":40.03,"longitude":-97.61},{"id":"iem_R_40.370_-97.830_1782010440000","source":"iem","severity":"low","severityValue":25,"timestamp":1782010440000,"latitude":40.37,"longitude":-97.83},{"id":"iem_R_40.300_-97.670_1782010200000","source":"iem","severity":"low","severityValue":25,"timestamp":1782010200000,"latitude":40.3,"longitude":-97.67},{"id":"iem_R_40.320_-97.740_1782010260000","source":"iem","severity":"low","severityValue":25,"timestamp":1782010260000,"latitude":40.32,"longitude":-97.74},{"id":"iem_H_40.180_-97.060_1781995260000","source":"iem","severity":"low","severityValue":25,"timestamp":1781995260000,"latitude":40.18,"longitude":-97.06}] |
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 10 February 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.