This alert expired on 13 July 2026 at 01:15 UTC. It is kept here as a record.
It is the 11th strongest of the 36 detections recorded within 20 km of this point since 25 April 2026. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued July 12 at 6:40PM CDT until July 12 at 8:15PM CDT by NWS Jackson MS
An estimated 65,642 people live within 50 km of this point.
Nearby, since 25 April 2026
- May 28, 2026 · score 34 · 14.5 km
- May 22, 2026 · score 39 · 23.3 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100, at 80 % 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) | 39 / 100 |
| Our confidence | 80% |
| Coordinates | 31.2733, -89.3200 |
| Nearest City | Hattiesburg (7 km) |
| Population Exposed | 65.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-12T23:40:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.4e4fb71dc61230c78875884be828ef9308e2a21a.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Forrest, MS; Jones, MS; Lamar, MS |
| Headline | Flash Flood Warning issued July 12 at 6:40PM CDT until July 12 at 8:15PM CDT by NWS Jackson MS |
| Expires | 2026-07-12T20:15:00-05:00 |
| SenderName | NWS Jackson MS |
| HasExactCoords | true |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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.
Calamity.live data shows a weather event with CalamityScore 39/100, near Hattiesburg (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.