Right now
The most recent data we hold from NOAA 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.
3 other detections within 20 km in the last 24 hours, the nearest 21 km from here.
This alert expired on 16 September 2026 at 09:00 UTC. It is kept here as a record.
No stronger detection stands among the 110 recorded within 20 km of this point since 15 March 2026 — 8 others scored the same. The last comparable one was on 15 September 2026. 15 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued September 15 at 10:01PM CDT until September 16 at 4:00AM CDT by NWS Wichita KS
Urban PEI: 419,628 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- June 21, 2026 · score 43 · 4.3 km
- September 15, 2026 · score 49 · 9.9 km
- June 16, 2026 · score 43 · 10.3 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 49 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) | 49 / 100 |
| Legacy data-support index | 0.86/1 |
| Coordinates | 37.4800, -97.4475 |
| Nearest City | Derby (17 km) |
| Urban exposure index (PEI) | 419.6K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-09-16T03:01:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.5005c8f4920f6f86ad96d04dea3cc8ec08a11ed4.001.1 |
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: 2026-09-16T03:01:00.000Z.
First archived: 2026-09-16T03:07:18.765Z. 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
| Event | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Butler, KS; Sedgwick, KS; Sumner, KS |
| Headline | Flood Warning issued September 15 at 10:01PM CDT until September 16 at 4:00AM CDT by NWS Wichita KS |
| Expires | 2026-09-16T04:00:00-05:00 |
| SenderName | NWS Wichita KS |
| HasExactCoords | true |
| Spc ReportType | wind |
| Spc Speed | 75 |
| Spc Location | Mcconnell Air Force Bas |
| Spc County | Sedgwick |
| Spc State | KS |
| Spc Comments | Measured at McConnell AFB. (ICT) |
| MergedSources | [{"id":"spc_wind_37.62_-97.26_0","source":"spc","severity":"medium","severityValue":45,"timestamp":1789545124533,"latitude":37.62,"longitude":-97.26},{"id":"spc_wind_37.61_-97.28_1","source":"spc","severity":"medium","severityValue":45,"timestamp":1789545124533,"latitude":37.61,"longitude":-97.28},{"id":"spc_wind_37.62_-97.26_2","source":"spc","severity":"high","severityValue":70,"timestamp":1789545124533,"latitude":37.62,"longitude":-97.26}] |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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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