Right now
The most recent data we hold from HEAT GOV arrived 19 minutes ago, and this point is in it.
Nothing else has been detected within 20 km in the last 24 hours.
This alert is in force until 14 September 2026, 00:00 UTC.
It is the 6th strongest of the 10 detections recorded within 20 km of this point since 10 May 2026. The last comparable one was on 4 July 2026.
What the source measured
HEAT GOV reported: * WHAT...Heat index values up to 108 expected. * WHERE...Southern Pope, Cleburne, Southeast Van Buren, and Southern Johnson Counties. * WHEN...From 11 AM to 7 PM CDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
An estimated 94,146 people live within 50 km of this point.
Nearby, since 10 May 2026
- July 4, 2026 · score 39 · 6.0 km
- May 10, 2026 · score 34 · 9.4 km
- May 10, 2026 · score 39 · 15.5 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 70 % 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 | 70% |
| Coordinates | 35.4252, -92.7477 |
| Nearest City | Russellville (38 km) |
| Population Exposed | 94.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-13T16:00:00.000Z |
| Source | http://www.weather.gov |
Score Breakdown
Technical Details
| Event | Heat Advisory |
| Urgency | Expected |
| Certainty | Likely |
| Onset | 2026-09-13T11:00:00-05:00 |
| Expires | 2026-09-13T19:00:00-05:00 |
| AreaDesc | Cleburne; Southern Johnson County; Southern Pope County; Southeast Van Buren County |
| SenderName | NWS Little Rock AR |
| 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 in this area?