Right now
The most recent data we hold from HEAT GOV arrived 2 hours ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
2 other detections within 20 km in the last 24 hours, the nearest 5 km from here.
This alert expired on 14 September 2026 at 11:15 UTC. It is kept here as a record.
It is the 3rd strongest of the 9 detections recorded within 20 km of this point since 1 July 2026. The last comparable one was on 5 September 2026. One more was recorded here in the fortnight before it.
What the source measured
HEAT GOV reported: * WHAT...Heat index values up to 110 degrees expected. * WHERE...Portions of central and south Mississippi, southeast Arkansas, and northeast Louisiana. * WHEN...From 11 AM to 7 PM CDT Monday. * IMPACTS...Hot temperatures and high humidity may cause heat related illnesses.
Urban PEI: 51,053 within a heuristic 50 km radius; not unique people.
Nearby, since 1 July 2026
- September 14, 2026 · score 32 · 5.0 km
- July 13, 2026 · score 34 · 11.4 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.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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 |
| Legacy data-support index | 0.69/1 |
| Coordinates | 32.7245, -90.5375 |
| Nearest City | Clinton (47 km) |
| Urban exposure index (PEI) | 51.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-14T16:00:00.000Z |
| Source | http://www.weather.gov |
Physical priority index · v4 (historical). Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: heat_gov. Occurrence: 2026-09-14T16:00:00.000Z.
First archived: 2026-09-14T03:38:55.926Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Heat Advisory |
| Urgency | Expected |
| Certainty | Likely |
| Onset | 2026-09-14T11:00:00-05:00 |
| Expires | 2026-09-14T06:15:00-05:00 |
| AreaDesc | Ashley; Chicot; Morehouse; West Carroll; East Carroll; Richland; Madison; Franklin; Catahoula; Tensas; Concordia; Bolivar; Sunflower; Leflore; Grenada; Carroll; Montgomery; Webster; Clay; Lowndes; Choctaw; Oktibbeha; Washington; Humphreys; Holmes; Attala; Issaquena; Sharkey; Yazoo; Madison; Leake; Warren; Hinds; Rankin; Claiborne; Copiah; Simpson; Jefferson; Adams; Franklin; Lincoln; Lawrence; Jefferson Davis; Marion |
| SenderName | NWS Jackson MS |
| ZonesUsedForCentroid | 11 |
| ZoneCount | 44 |
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.
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