This alert expired on 15 June 2026 at 15:15 UTC. It is kept here as a record.
It is the 6th strongest of the 51 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 15 at 8:31AM CDT until June 15 at 10:15AM CDT by NWS New Orleans LA
An estimated 262,709 people live within 50 km of this point.
Nearby, since 16 March 2026
- June 18, 2026 · score 49 · 4.2 km
- July 10, 2026 · score 43 · 13.5 km
- June 18, 2026 · score 49 · 14.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 81 % 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) | 43 / 100 |
| Our confidence | 81% |
| Coordinates | 30.3900, -88.8591 |
| Nearest City | Biloxi (3 km) |
| Population Exposed | 262.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-15T13:31:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.9440797d7fd83d68d0af7855562f163f7bb1847e.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Harrison, MS; Jackson, MS |
| Headline | Flash Flood Warning issued June 15 at 8:31AM CDT until June 15 at 10:15AM CDT by NWS New Orleans LA |
| Expires | 2026-06-15T10:15:00-05:00 |
| SenderName | NWS New Orleans LA |
| 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.
Want to know when something happens near Biloxi?
Calamity.live data shows a weather event with CalamityScore 43/100, near Biloxi (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 187 scientific monitoring sources.