Right now
The most recent data we hold from NOAA arrived 3 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
20 other detections within 20 km in the last 24 hours, the nearest 3 km from here.
This alert expired on 7 September 2026 at 00:15 UTC. It is kept here as a record.
It is the 5th strongest of the 59 detections recorded within 20 km of this point since 10 March 2026. The last comparable one was on 6 September 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 6 at 7:04PM CDT until September 6 at 7:15PM CDT by NWS Kansas City/Pleasant Hill MO
An estimated 244,766 people live within 50 km of this point.
Nearby, since 10 March 2026
- July 31, 2026 · score 37 · 6.0 km
- September 6, 2026 · score 54 · 11.1 km
- September 7, 2026 · score 58 · 13.1 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 49 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 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) | 49 / 100 |
| Our confidence | 90% |
| Coordinates | 39.5432, -94.4061 |
| Nearest City | Liberty (33 km) |
| Population Exposed | 244.8K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-09-07T00:04:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.491149a81ae296e78d3c6de0face9de8053b14ef.002.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Wyandotte, KS; Daviess, MO; Leavenworth, KS; Wyandotte, KS; Platte, MO and 1 more areas |
| Headline | Severe Thunderstorm Warning issued September 6 at 7:04PM CDT until September 6 at 7:15PM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-09-06T19:15:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.491149a81ae296e78d3c6de0face9de8053b14ef.002.1","noaa_urn:oid:2.49.0.1.840.0.d000f2d5e0a8ae9b77985435b58f5722cac4d14c.002.1","noaa_urn:oid:2.49.0.1.840.0.cee985193467b0d15e99159807626004b41b145b.001.1","noaa_urn:oid:2.49.0.1.840.0.8a251c941795f03ec553fc2a72dfa777ace2e602.001.1"] |
| 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 in this area?
Calamity.live data shows a weather event with CalamityScore 49/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.