Right now
The most recent data we hold from SPC arrived 19 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
69 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
Reported by SPC today.
No stronger detection stands among the 103 recorded within 20 km of this point since 26 April 2026 — 59 others scored the same. Another comparable one was recorded here earlier the same day. 12 more were recorded here in the fortnight before it.
What the source measured
SPC reported: Hail 100 in near Marquette, McPherson, KS. (ICT)
Urban PEI: 47,813 within a heuristic 50 km radius; not unique people.
Nearby, since 26 April 2026
- September 20, 2026 · score 40 · 0.0 km
- September 19, 2026 · score 40 · 0.0 km
- June 10, 2026 · score 28 · 10.6 km
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 v5. 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 | 0.88/1 |
| Coordinates | 38.5500, -97.8300 |
| Nearest City | Salina (37 km) |
| Urban exposure index (PEI) | 47.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-20T00:21:03.656Z |
| 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: 2026-09-20T00:21:03.656Z.
First archived: 2026-09-20T00:26:16.692Z. 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 | Marquette |
| County | McPherson |
| State | KS |
| Comments | (ICT) |
| Iem TypeSummary | H |
| Iem Magnitude | 2 |
| Iem Unit | Inch |
| Iem City | Mcpherson |
| Iem County | McPherson |
| Iem State | KS |
| Iem Wfo | ICT |
| Iem Remark | Most of the hail was quarter to golf ball with a few 2 inch stones. |
| MergedSources | [{"id":"iem_H_38.550_-97.830_1789854480000","source":"iem","severity":"low","severityValue":25,"timestamp":1789854480000,"latitude":38.55,"longitude":-97.83},{"id":"iem_H_38.360_-97.670_1789863120000","source":"iem","severity":"low","severityValue":25,"timestamp":1789863120000,"latitude":38.36,"longitude":-97.67},{"id":"iem_H_38.370_-97.660_1789863420000","source":"iem","severity":"low","severityValue":25,"timestamp":1789863420000,"latitude":38.37,"longitude":-97.66}] |
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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