This alert expired on 15 March 2026 at 22:30 UTC. It is kept here as a record.
No stronger detection stands among the 40 recorded within 20 km of this point since 15 March 2026 — 13 others scored the same. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Snow Squall Warning issued March 15 at 4:49PM CDT until March 15 at 5:30PM CDT by NWS Kansas City/Pleasant Hill MO
Nearby, since 15 March 2026
- September 3, 2026 · score 16 · 13.6 km
- May 18, 2026 · score 22 · 18.9 km
How we know
Confirmed by 6 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 68 % 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) | 22 / 100 |
| Our confidence | 68% |
| Coordinates | 39.7582, -94.1538 |
| Nearest City | Saint Joseph (60 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-15T21:49:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Snow-Squall-Warning_noaa_urn-oid-2_49_0_1_840_0_8d794dc4f0830f65962d24833fc132db |
Score Breakdown
Technical Details
| Event | Snow Squall Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Carroll, MO; Chariton, MO; Grundy, MO; Lafayette, MO; Linn, MO; Livingston, MO; Saline, MO; Sullivan, MO; Johnson, MO; Lafayette, MO; Atchison, MO; Holt, MO |
| Headline | Snow Squall Warning issued March 15 at 4:49PM CDT until March 15 at 5:30PM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-03-15T17:30:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8d794dc4f0830f65962d24833fc132dba4be76ea.001.1","noaa_urn:oid:2.49.0.1.840.0.9c915a9eaeae6eb10cce6f12ff0d8640e7c9480b.001.1","noaa_urn:oid:2.49.0.1.840.0.57174af84fa61a81a1a6101e4cd1b836ade1d9f6.001.1"] |
| Iem TypeSummary | O |
| Iem City | Saint Joseph |
| Iem County | Buchanan |
| Iem State | MO |
| Iem Wfo | EAX |
| Iem Remark | Downed wires from strong winds near Isadore Street. |
| MergedSources | [{"id":"iem_N_39.660_-94.090_1773596100000","source":"iem","severity":"low","severityValue":25,"timestamp":1773596100000,"latitude":39.66,"longitude":-94.09},{"id":"iem_O_39.280_-93.970_1773590340000","source":"iem","severity":"low","severityValue":25,"timestamp":1773590340000,"latitude":39.28,"longitude":-93.97},{"id":"iem_N_40.200_-94.600_1773592920000","source":"iem","severity":"low","severityValue":25,"timestamp":1773592920000,"latitude":40.2,"longitude":-94.6},{"id":"iem_N_39.370_-94.360_1773599580000","source":"iem","severity":"low","severityValue":25,"timestamp":1773599580000,"latitude":39.37,"longitude":-94.36},{"id":"iem_O_39.770_-94.850_1773597300000","source":"iem","severity":"low","severityValue":25,"timestamp":1773597300000,"latitude":39.77,"longitude":-94.85}] |
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 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.