Right now
The most recent data we hold from SPC arrived 2 hours ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
6 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
Reported by SPC today.
It is the 37th strongest of the 80 detections recorded within 20 km of this point since 4 April 2026. The last comparable one was on 27 June 2026. One more was recorded here in the fortnight before it.
What the source measured
SPC reported: Wind UNK kt near 2 NNE Iron Gates, Jasper, MO. Thunderstorm winds downed mulitple powerlines and trees in the area of 2nd st and Schifferdecker. (SGF)
Urban PEI: 72,227 within a heuristic 50 km radius; not unique people.
Nearby, since 4 April 2026
- June 24, 2026 · score 39 · 12.6 km
- June 26, 2026 · score 39 · 14.8 km
- June 17, 2026 · score 63 · 15.5 km
How we know
2 recorded sources include SPC; independence is not established by this count.
Our own score for this event is 32 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 32 / 100 |
| Legacy data-support index | 0.77/1 |
| Coordinates | 37.0900, -94.5500 |
| Nearest City | Joplin (4 km) |
| Urban exposure index (PEI) | 72.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-20T22:25:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Physical priority index · v5. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: spc. Occurrence: 2026-09-20T22:25:00.000Z.
First archived: 2026-09-20T22:59:31.250Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | UNK |
| Location | 2 NNE Iron Gates |
| County | Jasper |
| State | MO |
| Comments | Thunderstorm winds downed mulitple powerlines and trees in the area of 2nd st and Schifferdecker. (SGF) |
| Iem TypeSummary | D |
| Iem City | 2 NNE Iron Gates |
| Iem County | Jasper |
| Iem State | MO |
| Iem Wfo | SGF |
| Iem Remark | Thunderstorm winds downed mulitple powerlines and trees in the area of 2nd st and Schifferdecker. |
| MergedSources | [{"id":"iem_G_37.150_-94.500_1789943460000","source":"iem","severity":"low","severityValue":25,"timestamp":1789943460000,"latitude":37.15,"longitude":-94.5},{"id":"iem_D_37.090_-94.550_1789943100000","source":"iem","severity":"low","severityValue":25,"timestamp":1789943100000,"latitude":37.09,"longitude":-94.55}] |
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.
Review the area, threshold and delivery channel in your account.
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