This alert expired on 22 June 2026 at 09:48 UTC. It is kept here as a record.
It is the 8th strongest of the 23 detections recorded within 20 km of this point since 15 April 2026. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 22 at 4:38AM CDT until June 22 at 4:45AM CDT by NWS Tulsa OK
An estimated 38,456 people live within 50 km of this point.
Nearby, since 15 April 2026
- June 3, 2026 · score 39 · 4.8 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 85 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 34 / 100 |
| Our confidence | 85% |
| Coordinates | 35.5851, -95.3473 |
| Nearest City | Muskogee (18 km) |
| Population Exposed | 38.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-22T09:38:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.0976a9691377a07863a12187e78ada6a |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Rogers, OK; Tulsa, OK; Wagoner, OK; Washington, OK; Haskell, OK; Latimer, OK; Le Flore, OK; Muskogee, OK; Pushmataha, OK; Sequoyah, OK; Haskell, OK; McIntosh, OK; Muskogee, OK; Okmulgee, OK; Sequoyah, OK; Wagoner, OK |
| Headline | Severe Thunderstorm Warning issued June 22 at 4:38AM CDT until June 22 at 4:45AM CDT by NWS Tulsa OK |
| Expires | 2026-06-22T04:48:00-05:00 |
| SenderName | NWS Tulsa OK |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0976a9691377a07863a12187e78ada6aa9bcdf1e.001.1","noaa_urn:oid:2.49.0.1.840.0.c2c049fc0681e1c41a8b9d3b2fb1cb4ac3e0e07f.002.1","noaa_urn:oid:2.49.0.1.840.0.330b8b59bd9edf3c8e2d7c6466268210f6e32c3a.001.1"] |
| Iem TypeSummary | D |
| Iem City | 1 E Vivian |
| Iem County | McIntosh |
| Iem State | OK |
| Iem Wfo | TSA |
| Iem Remark | Report of tree, 4 inches in diameter, down and blocking road. Time estimated by radar. |
| MergedSources | [{"id":"iem_D_35.290_-95.700_1782118080000","source":"iem","severity":"low","severityValue":25,"timestamp":1782118080000,"latitude":35.29,"longitude":-95.7}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
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.
Calamity.live data shows a weather event with CalamityScore 34/100, near Muskogee (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.