Calamity
mediumSevere weatherCalamity Score: 34

Severe weather in United States

DelawareUnited StatesNOAA

This alert expired on 22 June 2026 at 12:45 UTC. It is kept here as a record.

It is the 3rd strongest of the 18 detections recorded within 20 km of this point since 25 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 22 at 4:32AM CDT until June 22 at 7:45AM CDT by NWS Tulsa OK

An estimated 16,081 people live within 50 km of this point.

Nearby, since 25 April 2026

How we know

One source: NOAA. Not yet confirmed by a second, independent source.

Our own score for this event is 34 out of 100, at 80 % confidence.

The score is ours, computed from intensity, exposed population and local history — not the source’s.

Event Data

TypeSevere weather
Severitymedium
Calamity Score (ours)34 / 100
Our confidence80%
Coordinates36.5114, -94.8793
Nearest CitySiloam Springs (47 km)
Population Exposed16.1K within 50 km
Impact Tiersignificant
Timestamp2026-06-22T09:32:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.1d4e5558f806f9fa7c5f6c353f944bfa

Score Breakdown

35
intensity
40
population
0
cascading
80
historical

Technical Details

EventFlash Flood Warning
UrgencyImmediate
CertaintyLikely
AreaDescAdair, OK; Cherokee, OK; Delaware, OK; Mayes, OK; Mayes, OK; Osage, OK; Rogers, OK; Tulsa, OK; Barry, MO and 6 more areas
HeadlineFlash Flood Warning issued June 22 at 4:32AM CDT until June 22 at 7:45AM CDT by NWS Tulsa OK
Expires2026-06-22T07:45:00-05:00
SenderNameNWS Tulsa OK
HasExactCoordstrue
MergedCount10
MergedIds["noaa_urn:oid:2.49.0.1.840.0.1d4e5558f806f9fa7c5f6c353f944bfa3d591df3.001.1","noaa_urn:oid:2.49.0.1.840.0.5e771f15a06673111a7acc9c0ac09091e8e8c9f9.001.1","noaa_urn:oid:2.49.0.1.840.0.9d7597b363bda2580b2576a999b2617e32f9af85.001.1","noaa_urn:oid:2.49.0.1.840.0.35506c494af06f2bbd315a23685da364ce4aae75.001.1","noaa_urn:oid:2.49.0.1.840.0.9cb61e6a4c4ed6139c2edb6437f35f56842b4b1f.001.1","noaa_urn:oid:2.49.0.1.840.0.4699832519bf9761f4a916af65dcbe2c6842e5da.001.1","noaa_urn:oid:2.49.0.1.840.0.2e1bfc4cc40b9ec18d2cf53a212cb00b2880e68b.001.1","noaa_urn:oid:2.49.0.1.840.0.441031526bd032cd5718092c26dd1f1b7cc5e679.001.1","noaa_urn:oid:2.49.0.1.840.0.831dc65de550df7233fbd722e22ec83ed7033bc3.001.1","noaa_urn:oid:2.49.0.1.840.0.e90dce7db138c34c3ff494d198edcc03913cb894.001.1"]

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 10 February 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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Calamity.live data shows a weather event with CalamityScore 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.