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.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 18 May 2026 at 05:45 UTC. It is kept here as a record.
It is the 13th strongest of the 42 detections recorded within 20 km of this point since 10 April 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued May 17 at 11:19PM CDT until May 18 at 12:45AM CDT by NWS Topeka KS
Nearby, since 10 April 2026
- June 22, 2026 · score 34 · 14.4 km
- July 1, 2026 · score 22 · 16.1 km
- May 31, 2026 · score 40 · 19.8 km
How we know
Confirmed by 18 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 70 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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) | 22 / 100 |
| Our confidence | 70% |
| Coordinates | 39.0271, -98.1911 |
| Nearest City | Salina (54 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-18T04:19:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.de4b9986717b3736877902dc573d2c6b |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Ottawa, KS; Barton, KS; Ellsworth, KS; Lincoln, KS; Russell, KS |
| Headline | Flash Flood Warning issued May 17 at 11:19PM CDT until May 18 at 12:45AM CDT by NWS Topeka KS |
| Expires | 2026-05-18T00:45:00-05:00 |
| SenderName | NWS Topeka KS |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.de4b9986717b3736877902dc573d2c6b4dd8249b.001.1","noaa_urn:oid:2.49.0.1.840.0.3ba2e78de4343531fb04a8880e41de4da73476f3.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.75 |
| Iem Unit | Inch |
| Iem City | 2 NNW Hunter |
| Iem County | Mitchell |
| Iem State | KS |
| Iem Wfo | GID |
| MergedSources | [{"id":"iem_F_38.900_-98.390_1779075960000","source":"iem","severity":"low","severityValue":25,"timestamp":1779075960000,"latitude":38.9,"longitude":-98.39},{"id":"iem_H_38.830_-98.530_1779064080000","source":"iem","severity":"low","severityValue":25,"timestamp":1779064080000,"latitude":38.83,"longitude":-98.53},{"id":"iem_G_39.510_-98.310_1779058140000","source":"iem","severity":"low","severityValue":25,"timestamp":1779058140000,"latitude":39.51,"longitude":-98.31},{"id":"iem_H_39.010_-97.880_1779071400000","source":"iem","severity":"low","severityValue":25,"timestamp":1779071400000,"latitude":39.01,"longitude":-97.88},{"id":"iem_H_38.830_-98.470_1779076380000","source":"iem","severity":"low","severityValue":25,"timestamp":1779076380000,"latitude":38.83,"longitude":-98.47},{"id":"iem_G_39.350_-98.340_1779058500000","source":"iem","severity":"low","severityValue":25,"timestamp":1779058500000,"latitude":39.35,"longitude":-98.34},{"id":"iem_H_39.180_-97.850_1779065700000","source":"iem","severity":"low","severityValue":25,"timestamp":1779065700000,"latitude":39.18,"longitude":-97.85},{"id":"iem_H_39.470_-98.130_1779060900000","source":"iem","severity":"low","severityValue":25,"timestamp":1779060900000,"latitude":39.47,"longitude":-98.13},{"id":"iem_H_39.010_-97.880_1779071340000","source":"iem","severity":"low","severityValue":25,"timestamp":1779071340000,"latitude":39.01,"longitude":-97.88},{"id":"iem_C_38.810_-98.230_1779063300000","source":"iem","severity":"low","severityValue":25,"timestamp":1779063300000,"latitude":38.81,"longitude":-98.23},{"id":"iem_H_39.060_-98.540_1779057360000","source":"iem","severity":"low","severityValue":25,"timestamp":1779057360000,"latitude":39.06,"longitude":-98.54},{"id":"iem_H_39.010_-98.520_1779059100000","source":"iem","severity":"low","severityValue":25,"timestamp":1779059100000,"latitude":39.01,"longitude":-98.52},{"id":"iem_H_39.030_-98.130_1779068160000","source":"iem","severity":"low","severityValue":25,"timestamp":1779068160000,"latitude":39.03,"longitude":-98.13},{"id":"iem_H_39.010_-97.960_1779067200000","source":"iem","severity":"low","severityValue":25,"timestamp":1779067200000,"latitude":39.01,"longitude":-97.96},{"id":"iem_G_39.500_-98.310_1779058140000","source":"iem","severity":"low","severityValue":25,"timestamp":1779058140000,"latitude":39.5,"longitude":-98.31},{"id":"iem_G_39.240_-97.740_1779066300000","source":"iem","severity":"low","severityValue":25,"timestamp":1779066300000,"latitude":39.24,"longitude":-97.74},{"id":"iem_H_39.260_-98.410_1779058200000","source":"iem","severity":"low","severityValue":25,"timestamp":1779058200000,"latitude":39.26,"longitude":-98.41}] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.