Right now
The most recent data we hold from SPC arrived 2 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Reported by SPC today.
What the source measured
SPC reported: Wind 63 kt near 3 S Creston, Union, IA. (DMX)
How we know
2 recorded sources include SPC; independence is not established by this count.
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 | 0.54/1 |
| Coordinates | 41.0200, -94.3600 |
| Nearest City | Waukee (76 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-09-15T03:06:00.000Z |
| 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: 2026-09-15T03:06:00.000Z.
First archived: 2026-09-15T05:56:45.989Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-15T08:01:24.265Z · data_change
Index 16 → 16; severity medium → medium; version 5 → 5.
2026-09-15T07:33:50.245Z · data_change
Index 16 → 16; severity medium → medium; version 5 → 5.
2026-09-15T06:50:46.971Z · data_change
Index 16 → 16; severity medium → medium; version 5 → 5.
2026-09-15T06:02:17.511Z · data_change
Index 16 → 16; severity medium → medium; version 5 → 5.
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | 63 |
| Location | 3 S Creston |
| County | Union |
| State | IA |
| Comments | (DMX) |
| Iem TypeSummary | G |
| Iem Magnitude | 63 |
| Iem Unit | MPH |
| Iem City | 3 S Creston |
| Iem County | Union |
| Iem State | IA |
| Iem Wfo | DMX |
| MergedSources | [{"id":"iem_G_41.500_-94.540_1789451880000","source":"iem","severity":"low","severityValue":25,"timestamp":1789451880000,"latitude":41.5,"longitude":-94.54},{"id":"iem_G_41.020_-94.360_1789441560000","source":"iem","severity":"low","severityValue":25,"timestamp":1789441560000,"latitude":41.02,"longitude":-94.36}] |
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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