This alert expired on 1 June 2026 at 03:45 UTC. It is kept here as a record.
It is the 19th strongest of the 80 detections recorded within 20 km of this point since 8 May 2026. Another comparable one was recorded here earlier the same day. 39 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued May 31 at 10:42AM CDT until June 3 at 1:00AM CDT by NWS Mobile AL
An estimated 240,583 people live within 50 km of this point.
Nearby, since 8 May 2026
- June 1, 2026 · score 43 · 0.0 km
- May 30, 2026 · score 37 · 0.9 km
- May 31, 2026 · score 43 · 7.1 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 79 % 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 | 79% |
| Coordinates | 30.7070, -88.9600 |
| Nearest City | Biloxi (35 km) |
| Population Exposed | 240.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-31T15:42:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.021d5955c1d3f352f460c29d67c1636a |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | George, MS; Greene, MS; Jackson, MS; St. Tammany, LA; Hancock, MS; Pearl River, MS |
| Headline | Flood Warning issued May 31 at 10:42AM CDT until June 3 at 1:00AM CDT by NWS Mobile AL |
| Expires | 2026-05-31T22:45:00-05:00 |
| SenderName | NWS Mobile AL |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.021d5955c1d3f352f460c29d67c1636ad8589495.001.1","noaa_urn:oid:2.49.0.1.840.0.23dc4c6d159a743611af690e941b13650783fe33.001.1","noaa_urn:oid:2.49.0.1.840.0.7e0d5b429e8bac1d0f2d0eb04dfb41be73de7b9d.001.1"] |
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 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.