Right now
The most recent data we hold from SPC arrived 3 hours ago, and this point is in it.
One other detection within 20 km in the last 24 hours, 6 km from here.
Reported by SPC today.
It is one of only 2 we have recorded within 20 km of this point since 15 March 2026. The last comparable one was on 30 August 2026.
What the source measured
SPC reported: Wind 66 kt near 10 NW Okobojo Creek Rec, Sully, SD. Ambient weather station. (ABR)
Nearby, since 15 March 2026
- June 2, 2026 · 15.1 km
How we know
One source: SPC. Not yet confirmed by a second, independent source.
Our own score for this event is 16 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) | 16 / 100 |
| Legacy data-support index | 0.50/1 |
| Coordinates | 44.7200, -100.5900 |
| Nearest City | Aberdeen (184 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-09-27T14:40:00.000Z |
| 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: 2026-09-27T14:40:00.000Z.
First archived: 2026-09-27T15:58:43.407Z. 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 | 66 |
| Location | 10 NW Okobojo Creek Rec |
| County | Sully |
| State | SD |
| Comments | Ambient weather station. (ABR) |
| Iem TypeSummary | Thunderstorm wind gust |
| Iem LsrCode | G |
| Iem LsrType | TSTM WND GST |
| Iem Magnitude | 66 |
| Iem Unit | MPH |
| Iem City | 10 NW Okobojo Creek Rec |
| Iem County | Sully |
| Iem State | SD |
| Iem Wfo | ABR |
| Iem Remark | Ambient weather station. |
| MergedSources | [{"id":"iem_G_44.720_-100.590_1790520000000","source":"iem","severity":"medium","severityValue":50,"timestamp":1790520000000,"latitude":44.72,"longitude":-100.59}] |
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.
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