Right now
The most recent data we hold from NOAA arrived 3 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 8 June 2026 at 17:00 UTC. It is kept here as a record.
It is the 2nd strongest of the 28 detections recorded within 20 km of this point since 28 April 2026. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 8 at 9:31AM CDT until June 8 at 12:00PM CDT by NWS Tulsa OK
Urban PEI: 135,657 within a heuristic 50 km radius; not unique people.
Nearby, since 28 April 2026
- June 8, 2026 · score 43 · 6.0 km
- June 14, 2026 · score 43 · 11.5 km
- May 30, 2026 · score 37 · 15.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
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 | 0.81/1 |
| Coordinates | 36.7226, -94.0426 |
| Nearest City | Bella Vista (34 km) |
| Urban exposure index (PEI) | 135.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-08T14:31:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.a86d945dd458dc0074a2024d55a4503e |
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: 2026-06-08T14:31:00.000Z.
First archived: 2026-06-08T15:22:36.324Z. 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 | Adair, OK; Delaware, OK; Christian, MO; Douglas, MO; Taney, MO; Webster, MO; Benton, AR; Washington, AR and 6 more areas |
| Headline | Flash Flood Warning issued June 8 at 9:31AM CDT until June 8 at 12:00PM CDT by NWS Tulsa OK |
| Expires | 2026-06-08T12:00:00-05:00 |
| SenderName | NWS Tulsa OK |
| HasExactCoords | true |
| MergedCount | 10 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a86d945dd458dc0074a2024d55a4503ee43db648.001.1","noaa_urn:oid:2.49.0.1.840.0.03a9998f4a8a700208b197f43b270353563646e8.001.1","noaa_urn:oid:2.49.0.1.840.0.45d2f1fd661098c6631e363f9b5701774063d929.001.1","noaa_urn:oid:2.49.0.1.840.0.1dfba62330d5cad34fa1dcf7b646fbae20a41195.001.1","noaa_urn:oid:2.49.0.1.840.0.fd9b4307872f0a2b0a3d289dc8f0b5333b01355a.001.1","noaa_urn:oid:2.49.0.1.840.0.8c59b44539e81fe82379c339355d87963aa0733a.001.1","noaa_urn:oid:2.49.0.1.840.0.44d48964544cc5fad5d50b66243112d8e9cd3338.001.1","noaa_urn:oid:2.49.0.1.840.0.05fd01869b0be7c401081c889a7366980406bf90.001.1","noaa_urn:oid:2.49.0.1.840.0.63f78b0a9c782b4e33e1cbcc6539809b44dae5b3.001.1","noaa_urn:oid:2.49.0.1.840.0.77ccb2875834dbc2b06e2ae3524ab5c332780384.001.1"] |
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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