Reported by SPC 169 days ago.
No stronger detection stands among the 22 recorded within 20 km of this point since 15 March 2026 — 16 others scored the same. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
SPC reported: Wind UNK kt near 1 S Alton, Oregon, MO. Report via email of two uprooted trees at a home in Alton. Time estimated from radar. (SGF)
Nearby, since 15 March 2026
- June 13, 2026 · score 22 · 10.1 km
How we know
Confirmed by 2 independent sources, including SPC.
Our own score for this event is 22 out of 100, at 69 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 69% |
| Coordinates | 36.6800, -91.4000 |
| Nearest City | Poplar Bluff (90 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-16T03:08:46.161Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | UNK |
| Location | 1 S Alton |
| County | Oregon |
| State | MO |
| Comments | Report via email of two uprooted trees at a home in Alton. Time estimated from radar. (SGF) |
| Iem TypeSummary | D |
| Iem City | 1 S Alton |
| Iem County | Oregon |
| Iem State | MO |
| Iem Wfo | SGF |
| Iem Remark | Report via email of two uprooted trees at a home in Alton. Time estimated from radar. |
| MergedSources | [{"id":"iem_D_36.680_-91.400_1773611880000","source":"iem","severity":"low","severityValue":25,"timestamp":1773611880000,"latitude":36.68,"longitude":-91.4}] |
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 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 22/100 (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.