This alert is in force until 2 September 2026, 05:00 UTC.
It is one of only 3 we have recorded within 20 km of this point since 1 June 2026. The last comparable one was on 1 July 2026.
What the source measured
HEAT GOV reported: * WHAT...Heat index values up to 107 expected. * WHERE...A portion of central Alabama. * WHEN...From 11 AM Wednesday to 8 PM CDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
An estimated 478,074 people live within 50 km of this point.
Nearby, since 1 June 2026
- June 1, 2026 · score 43 · 20.7 km
How we know
One source: HEAT GOV. Not yet confirmed by a second, independent source.
Our own score for this event is 37 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) | 37 / 100 |
| Our confidence | 69% |
| Coordinates | 33.1678, -86.6131 |
| Nearest City | Alabaster (21 km) |
| Population Exposed | 478.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-02T16:00:00.000Z |
| Source | http://www.weather.gov |
Score Breakdown
Technical Details
| Event | Heat Advisory |
| Urgency | Expected |
| Certainty | Likely |
| Onset | 2026-09-02T11:00:00-05:00 |
| Expires | 2026-09-02T00:00:00-05:00 |
| AreaDesc | Marion; Lamar; Fayette; Winston; Walker; Blount; Etowah; Calhoun; Cherokee; Cleburne; Pickens; Tuscaloosa; Jefferson; Shelby; St. Clair; Talladega; Clay; Randolph; Sumter; Greene; Hale; Perry; Bibb; Chilton; Coosa; Tallapoosa; Chambers; Marengo; Dallas; Autauga; Lowndes; Elmore; Montgomery; Macon; Bullock; Lee; Russell; Pike; Barbour |
| SenderName | NWS Birmingham AL |
| ZonesUsedForCentroid | 10 |
| ZoneCount | 39 |
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 Alabaster?
Calamity.live data shows a weather event with CalamityScore 37/100, near Alabaster (United States), based on data from heat_gov. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.