This alert is in force until 4 September 2026, 04:45 UTC.
It is the 21st strongest of the 28 detections recorded within 20 km of this point since 15 April 2026. The last comparable one was on 2 September 2026.
What the source measured
HEAT GOV reported: * WHAT...Heat index values up to 106 expected. * WHERE...Cherokee, Delaware, Latimer, and Pittsburg Counties. * WHEN...From noon to 7 PM CDT Friday. * IMPACTS...Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activit...
An estimated 55,054 people live within 50 km of this point.
Nearby, since 15 April 2026
- September 2, 2026 · score 32 · 5.6 km
- June 22, 2026 · score 34 · 10.5 km
- June 3, 2026 · score 39 · 11.9 km
How we know
One source: HEAT GOV. Not yet confirmed by a second, independent source.
Our own score for this event is 32 out of 100, at 68 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 32 / 100 |
| Our confidence | 68% |
| Coordinates | 35.5622, -95.2349 |
| Nearest City | Muskogee (24 km) |
| Population Exposed | 55.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-04T17:00:00.000Z |
| Source | http://www.weather.gov |
Score Breakdown
Technical Details
| Event | Heat Advisory |
| Urgency | Expected |
| Certainty | Likely |
| Onset | 2026-09-04T12:00:00-05:00 |
| Expires | 2026-09-03T23:45:00-05:00 |
| AreaDesc | Delaware; Cherokee; Pittsburg; Latimer |
| SenderName | NWS Tulsa OK |
| ZonesUsedForCentroid | 4 |
| ZoneCount | 4 |
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 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.
Want to know when something happens near Muskogee?
Calamity.live data shows a weather event with CalamityScore 32/100, near Muskogee (United States), based on data from heat_gov. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.