Right now
The most recent data we hold from NOAA arrived 4 minutes ago, and this point is in it.
Nothing else has been detected within 20 km in the last 24 hours.
This alert is in force until 15 September 2026, 05:00 UTC.
No stronger detection stands among the 111 recorded within 20 km of this point since 15 March 2026 — 30 others scored the same. The last comparable one was on 10 September 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Watch issued September 14 at 4:51PM CDT until September 15 at 12:00AM CDT by NWS Kansas City/Pleasant Hill MO
Urban PEI: 42,595 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- August 1, 2026 · score 46 · 0.0 km
- July 21, 2026 · score 28 · 0.0 km
- July 9, 2026 · score 34 · 0.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 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) | 46 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 38.5000, -92.3000 |
| Nearest City | Jefferson City (14 km) |
| Urban exposure index (PEI) | 42.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-14T21:51:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.194921b60f61f9e03916b112fc3108db81bc817d.001.1 |
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: noaa. Occurrence: 2026-09-14T21:51:00.000Z.
First archived: 2026-09-14T21:54:08.460Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-14T22:58:33.803Z · data_change
Index 46 → 46; severity medium → medium; version 5 → 5.
2026-09-14T22:26:24.261Z · data_change
Index 46 → 46; severity medium → medium; version 5 → 5.
2026-09-14T22:10:22.214Z · data_change
Index 46 → 46; severity medium → medium; version 5 → 5.
Score Breakdown
Technical Details
| Event | Tornado Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Atchison, MO |
| Headline | Tornado Watch issued September 14 at 4:51PM CDT until September 15 at 12:00AM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-09-15T00:00:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | false |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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.
Review the area, threshold and delivery channel in your account.
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