Right now
The most recent data we hold from HEAT GOV arrived 24 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 9 September 2026, 08:00 UTC.
It is the 45th strongest of the 53 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 20 August 2026.
What the source measured
HEAT GOV reported: * WHAT...Heat index values up to 109 expected. * WHERE...Portions of East Arkansas, Southeast Missouri, and West Tennessee. * WHEN...From 11 AM to 8 PM CDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
An estimated 16,781 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 11, 2026 · score 34 · 10.1 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.
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) | 28 / 100 |
| Our confidence | 69% |
| Coordinates | 35.9193, -89.5155 |
| Nearest City | Dyersburg (17 km) |
| Population Exposed | 16.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-09T16:00:00.000Z |
| Source | http://www.weather.gov |
Score Breakdown
Technical Details
| Event | Heat Advisory |
| Urgency | Expected |
| Certainty | Likely |
| Onset | 2026-09-09T11:00:00-05:00 |
| Expires | 2026-09-09T03:00:00-05:00 |
| AreaDesc | Clay; Greene; Craighead; Poinsett; Mississippi; Cross; Dunklin; Pemiscot; Lake; Obion; Weakley; Henry; Dyer; Gibson; Carroll; Benton; Lauderdale; Tipton; Haywood; Crockett; Madison; Chester; Hardeman |
| SenderName | NWS Memphis TN |
| ZonesUsedForCentroid | 12 |
| ZoneCount | 23 |
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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