Right now
The most recent data we hold from SPC arrived 13 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 19 days ago.
What the source measured
SPC reported: Hail 100 in near 2 SE Saint John, Rolette, ND. Trained spotter called in a report of quarter size hail. (BIS)
How we know
2 recorded sources include SPC; independence is not established by this count.
Our own score for this event is 28 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) | 28 / 100 |
| Legacy data-support index | 0.68/1 |
| Coordinates | 48.9100, -99.6800 |
| Nearest City | Brandon (106 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-09-06T00:39:28.395Z |
| 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: 2026-09-06T00:39:28.395Z.
First archived: 2026-09-06T00:42:55.067Z. 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 | 2 SE Saint John |
| County | Rolette |
| State | ND |
| Comments | Trained spotter called in a report of quarter size hail. (BIS) |
| Iem TypeSummary | R |
| Iem Magnitude | 1.4 |
| Iem Unit | Inch |
| Iem City | 1 S Rolla |
| Iem County | Rolette |
| Iem State | ND |
| Iem Wfo | BIS |
| Iem Remark | NDAWN reported 1.4 inches or 24 hour rain. |
| MergedSources | [{"id":"iem_R_48.690_-100.010_1788647340000","source":"iem","severity":"low","severityValue":25,"timestamp":1788647340000,"latitude":48.69,"longitude":-100.01},{"id":"iem_R_48.600_-100.210_1788652920000","source":"iem","severity":"low","severityValue":25,"timestamp":1788652920000,"latitude":48.6,"longitude":-100.21},{"id":"iem_H_48.910_-99.680_1788652080000","source":"iem","severity":"low","severityValue":25,"timestamp":1788652080000,"latitude":48.91,"longitude":-99.68},{"id":"iem_R_48.840_-99.610_1788652980000","source":"iem","severity":"low","severityValue":25,"timestamp":1788652980000,"latitude":48.84,"longitude":-99.61}] |
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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