Right now
The most recent data we hold from SPC arrived 11 hours 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 18 days ago.
What the source measured
SPC reported: Hail 100 in near Wolf Creek, Lewis and Clark, MT. Public reported quarter-sized hail in Wolf Creek. (TFX)
Urban PEI: 32,091 within a heuristic 50 km radius; not unique people.
How we know
2 recorded sources include SPC; independence is not established by this count.
Our own score for this event is 40 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 v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | High |
| Calamity Score (ours) | 40 / 100 |
| Legacy data-support index | 0.71/1 |
| Coordinates | 47.0100, -112.0700 |
| Nearest City | Helena (47 km) |
| Urban exposure index (PEI) | 32.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-07T00:30:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Physical priority index · v4 (historical). 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: 2026-09-07T00:30:00.000Z.
First archived: 2026-09-07T07:53:47.939Z. 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 | hail |
| Speed | 100 |
| Location | Wolf Creek |
| County | Lewis and Clark |
| State | MT |
| Comments | Public reported quarter-sized hail in Wolf Creek. (TFX) |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | Wolf Creek |
| Iem County | Lewis and Clark |
| Iem State | MT |
| Iem Wfo | TFX |
| Iem Remark | Public reported quarter-sized hail in Wolf Creek. |
| MergedSources | [{"id":"iem_H_46.600_-112.590_1788736800000","source":"iem","severity":"low","severityValue":25,"timestamp":1788736800000,"latitude":46.6,"longitude":-112.59},{"id":"iem_H_46.750_-112.300_1788738420000","source":"iem","severity":"low","severityValue":25,"timestamp":1788738420000,"latitude":46.75,"longitude":-112.3},{"id":"iem_H_47.010_-112.070_1788741000000","source":"iem","severity":"low","severityValue":25,"timestamp":1788741000000,"latitude":47.01,"longitude":-112.07}] |
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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