Right now
The most recent data we hold from NOAA arrived 67 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 16:45 UTC. It is kept here as a record.
It is the 8th strongest of the 56 detections recorded within 20 km of this point since 4 April 2026. Another comparable one was recorded here earlier the same day. 23 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 8 at 8:35AM CDT until June 8 at 11:45AM CDT by NWS Tulsa OK
Urban PEI: 79,817 within a heuristic 50 km radius; not unique people.
Nearby, since 4 April 2026
- June 8, 2026 · score 63 · 8.3 km
- May 30, 2026 · score 37 · 11.8 km
- May 19, 2026 · score 39 · 12.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 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) | 39 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 36.9125, -94.3393 |
| Nearest City | Joplin (24 km) |
| Urban exposure index (PEI) | 79.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-08T13:35:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.45d2f1fd661098c6631e363f9b570177 |
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: 2026-06-08T13:35:00.000Z.
First archived: 2026-06-08T13:40:30.033Z. 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 | Benton, AR; Washington, AR; Ottawa, OK; Benton, AR and 8 more areas |
| Headline | Flash Flood Warning issued June 8 at 8:35AM CDT until June 8 at 11:45AM CDT by NWS Tulsa OK |
| Expires | 2026-06-08T11:45:00-05:00 |
| SenderName | NWS Tulsa OK |
| HasExactCoords | true |
| MergedCount | 13 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.45d2f1fd661098c6631e363f9b5701774063d929.001.1","noaa_urn:oid:2.49.0.1.840.0.1dbe364cbcd3b36a979b116ca8eb3d863b3b27cc.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:2.49.0.1.840.0.20f0368aade3c03387b86857074887c8eb0ad44a.001.1","noaa_urn:oid:2.49.0.1.840.0.8c59b44539e81fe82379c339355d87963aa0733a.001.1","noaa_urn:oid:2.49.0.1.840.0.9ae764c7d529d652eecf3b088e99b9dfed0ce86c.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.fb62f2f362eefea4572d8e6ac524317ccf6f7b5c.001.1","noaa_urn:oid:2.49.0.1.840.0.77ccb2875834dbc2b06e2ae3524ab5c332780384.001.1","noaa_urn:oid:2.49.0.1.840.0.b009313de29d82ca22f94a4c1e938686a2e2811c.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.
Review the area, threshold and delivery channel in your account.
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