Right now
The most recent data we hold from NOAA arrived 12 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 1 June 2026 at 13:00 UTC. It is kept here as a record.
It is the strongest of the 59 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 32 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 1 at 1:58AM CDT until June 1 at 8:00AM CDT by NWS Kansas City/Pleasant Hill MO
An estimated 249,090 people live within 50 km of this point.
Nearby, since 15 March 2026
- May 19, 2026 · score 43 · 0.6 km
- September 10, 2026 · score 37 · 15.8 km
- June 9, 2026 · score 48 · 22.4 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 49 out of 100, at 84 % 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 | High |
| Calamity Score (ours) | 49 / 100 |
| Our confidence | 84% |
| Coordinates | 38.6695, -95.3050 |
| Nearest City | Lawrence (34 km) |
| Population Exposed | 249.1K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-06-01T06:58:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.460e9d4e196f6540a5a5babcece2ab52 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Wyandotte, KS; Clay, MO; Platte, MO; Greenwood, KS |
| Headline | Flash Flood Warning issued June 1 at 1:58AM CDT until June 1 at 8:00AM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-06-01T08:00:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.460e9d4e196f6540a5a5babcece2ab52f429946d.001.1","noaa_urn:oid:2.49.0.1.840.0.e5a0cfbfb69fb13d10b5f7adccdd5af09872127f.001.1"] |
| Spc ReportType | hail |
| Spc Speed | 175 |
| Spc Location | 6 W Le Roy |
| Spc County | Coffey |
| Spc State | KS |
| Spc Comments | Report from mPING: Golf Ball (1.75 in.). (TOP) |
| MergedSources | [{"id":"spc_hail_38.10_-95.74_67","source":"spc","severity":"high","severityValue":65,"timestamp":1780287960000,"latitude":38.1,"longitude":-95.74}] |
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.
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