This alert is in force until 2 September 2026, 21:00 UTC.
It is the 12th strongest of the 12 detections recorded within 20 km of this point since 9 May 2026. The last comparable one was on 12 June 2026.
What the source measured
HEAT GOV reported: * WHAT...Heat index values up to 108 expected. * WHERE...Portions of west central Arkansas and east central, northeast, and southeast Oklahoma. * WHEN...From noon to 8 PM CDT Wednesday. * IMPACTS...Heat related illnesses are possible especially impacting those not acclimated to the conditions ...
How we know
One source: HEAT GOV. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 49 % 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) | 16 / 100 |
| Our confidence | 49% |
| Coordinates | 35.2942, -95.1191 |
| Nearest City | Muskogee (56 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-02T17:00:00.000Z |
| Source | http://www.weather.gov |
Score Breakdown
Technical Details
| Event | Heat Advisory |
| Urgency | Expected |
| Certainty | Likely |
| Onset | 2026-09-02T12:00:00-05:00 |
| Expires | 2026-09-02T16:00:00-05:00 |
| AreaDesc | Southern Sebastian; Craig; Ottawa; Creek; Okfuskee; Haskell; Latimer; Northern Le Flore; Northeast Osage; Central and Southern Sequoyah; Central Le Flore; Southern Le Flore |
| SenderName | NWS Tulsa OK |
| ZonesUsedForCentroid | 9 |
| ZoneCount | 12 |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 16/100 (United States), based on data from heat_gov. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.