This alert is in force until 2 September 2026, 01:00 UTC.
It is the 5th strongest of the 7 detections recorded within 20 km of this point since 25 April 2026. The last comparable one was on 13 July 2026.
What the source measured
HEAT GOV reported: * WHAT...For the first Heat Advisory, heat index values up to 108. For the second Heat Advisory, heat index values up to 109 expected. * WHERE...Portions of southeast Arkansas, northeast Louisiana, and central, north central, northwest, south central, southwest, and west central Mississippi. * ...
An estimated 48,385 people live within 50 km of this point.
Nearby, since 25 April 2026
- July 13, 2026 · score 34 · 17.7 km
- July 2, 2026 · score 34 · 19.0 km
How we know
One source: HEAT GOV. Not yet confirmed by a second, independent source.
Our own score for this event is 28 out of 100, at 69 % 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) | 28 / 100 |
| Our confidence | 69% |
| Coordinates | 32.5602, -90.7674 |
| Nearest City | Vicksburg (26 km) |
| Population Exposed | 48.4K within 50 km |
| Impact Tier | significant |
| 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 | 2026-09-01T20:00:00-05:00 |
| AreaDesc | Ashley; Chicot; Morehouse; West Carroll; East Carroll; Richland; Madison; Franklin; Catahoula; Tensas; Concordia; Bolivar; Sunflower; Leflore; Grenada; Carroll; Washington; Humphreys; Holmes; Issaquena; Sharkey; Yazoo; Madison; Warren; Hinds; Rankin; Claiborne; Copiah; Simpson; Jefferson; Adams; Franklin; Lincoln; Lawrence; Jefferson Davis; Marion |
| SenderName | NWS Jackson MS |
| ZonesUsedForCentroid | 12 |
| ZoneCount | 36 |
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 near Vicksburg?
Calamity.live data shows a weather event with CalamityScore 28/100, near Vicksburg (United States), based on data from heat_gov. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.