Right now
The most recent data we hold from NOAA arrived 7 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
25 other detections within 20 km in the last 24 hours, the nearest 9 km from here.
This alert expired on 7 September 2026 at 00:45 UTC. It is kept here as a record.
No stronger detection stands among the 75 recorded within 20 km of this point since 10 March 2026 — one other scored the same. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 6 at 7:33PM CDT until September 6 at 7:45PM CDT by NWS Kansas City/Pleasant Hill MO
An estimated 1,120,759 people live within 50 km of this point.
Nearby, since 10 March 2026
- September 6, 2026 · score 54 · 9.1 km
- September 6, 2026 · score 54 · 14.2 km
- July 31, 2026 · score 37 · 16.2 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 58 out of 100, at 89 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | High |
| Calamity Score (ours) | 58 / 100 |
| Our confidence | 89% |
| Coordinates | 39.4569, -94.5103 |
| Nearest City | Liberty (24 km) |
| Population Exposed | 1.1M within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-09-07T00:33:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.8078611a160b5670fb38f1c62dbd92e2674190e8.002.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Daviess, MO; Leavenworth, KS; Platte, MO |
| Headline | Severe Thunderstorm Warning issued September 6 at 7:33PM CDT until September 6 at 7:45PM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-09-06T19:45:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8078611a160b5670fb38f1c62dbd92e2674190e8.002.1","noaa_urn:oid:2.49.0.1.840.0.a3406b01d26988989d2f4bf804b8f0e4bda700d1.002.1","noaa_urn:oid:2.49.0.1.840.0.7f303177e4802b9fa98e9f8922255c62881d146f.001.1"] |
| Spc ReportType | hail |
| Spc Speed | 100 |
| Spc Location | 2 SE Bonner Springs |
| Spc County | Johnson |
| Spc State | KS |
| Spc Comments | Report from mPING: Quarter (1.00 in.). (EAX) |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 5 SE Winchester |
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 Liberty?
Calamity.live data shows a weather event with CalamityScore 58/100, near Liberty (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.