Right now
The most recent data we hold from NOAA arrived 10 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 19 June 2026 at 05:45 UTC. It is kept here as a record.
No stronger detection stands among the 86 recorded within 20 km of this point since 15 March 2026 — 19 others scored the same. Another comparable one was recorded here earlier the same day. 26 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 18 at 9:44PM CDT until June 19 at 12:45AM CDT by NWS Wichita KS
Urban PEI: 419,628 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- September 10, 2026 · score 37 · 3.5 km
- September 9, 2026 · score 37 · 3.5 km
- June 4, 2026 · score 43 · 9.8 km
How we know
6 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 43 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 v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 43 / 100 |
| Legacy data-support index | 0.90/1 |
| Coordinates | 37.2440, -97.3780 |
| Nearest City | Derby (35 km) |
| Urban exposure index (PEI) | 419.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-19T02:44:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.26d38317ccac49ac876880f747d80bc7fbd8d814.001.1 |
Physical priority index · v1. 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: 2026-06-19T02:44:00.000Z.
First archived: 2026-06-19T05:33:12.850Z. 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 | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Sumner, KS |
| Headline | Flash Flood Warning issued June 18 at 9:44PM CDT until June 19 at 12:45AM CDT by NWS Wichita KS |
| Expires | 2026-06-19T00:45:00-05:00 |
| SenderName | NWS Wichita KS |
| HasExactCoords | true |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 5 WNW Udall |
| Iem County | Sumner |
| Iem State | KS |
| Iem Wfo | ICT |
| Iem Remark | Time estimated from radar. |
| MergedSources | [{"id":"iem_F_37.260_-97.390_1781833920000","source":"iem","severity":"low","severityValue":25,"timestamp":1781833920000,"latitude":37.26,"longitude":-97.39},{"id":"iem_E_37.270_-97.400_1781832360000","source":"iem","severity":"low","severityValue":25,"timestamp":1781832360000,"latitude":37.27,"longitude":-97.4},{"id":"iem_E_37.300_-97.390_1781830860000","source":"iem","severity":"low","severityValue":25,"timestamp":1781830860000,"latitude":37.3,"longitude":-97.39},{"id":"iem_F_37.260_-97.390_1781833980000","source":"iem","severity":"low","severityValue":25,"timestamp":1781833980000,"latitude":37.26,"longitude":-97.39},{"id":"iem_H_37.400_-97.200_1781825460000","source":"iem","severity":"low","severityValue":25,"timestamp":1781825460000,"latitude":37.4,"longitude":-97.2}] |
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.
Want to know when something happens in this area?