Right now
The most recent data we hold from HEAT GOV arrived 3 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 8 September 2026, 00:30 UTC.
It is the 7th strongest of the 8 detections recorded within 20 km of this point since 9 March 2026. The last comparable one was on 21 August 2026.
What the source measured
HEAT GOV reported: * WHAT...Heat index values up to 108 expected. * WHERE...Portions of East Arkansas, North Mississippi, and West Tennessee. * WHEN...From 11 AM to 8 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
An estimated 95,007 people live within 50 km of this point.
Nearby, since 9 March 2026
- June 2, 2026 · score 52 · 18.8 km
- March 9, 2026 · score 48 · 24.3 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 69 % 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 | 69% |
| Coordinates | 34.6350, -90.2769 |
| Nearest City | Hernando (33 km) |
| Population Exposed | 95.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-08T16:00:00.000Z |
| Source | http://www.weather.gov |
Score Breakdown
Technical Details
| Event | Heat Advisory |
| Urgency | Expected |
| Certainty | Likely |
| Onset | 2026-09-08T11:00:00-05:00 |
| Expires | 2026-09-07T19:30:00-05:00 |
| AreaDesc | Crittenden; St. Francis; Lee; Phillips; DeSoto; Marshall; Tunica; Tate; Coahoma; Quitman; Panola; Lafayette; Tallahatchie; Yalobusha; Shelby; Fayette |
| SenderName | NWS Memphis TN |
| ZonesUsedForCentroid | 8 |
| ZoneCount | 16 |
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?
Calamity.live data shows a weather event with CalamityScore 32/100 (United States), based on data from heat_gov. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.