Calamity
MediumSevere WeatherCalamity Score: 43

Severe Weather in United States

StoneUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 23 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

Nothing else has been detected within 20 km in the last 24 hours.

This alert expired on 1 June 2026 at 05:15 UTC. It is kept here as a record.

It is the 20th strongest of the 89 detections recorded within 20 km of this point since 8 May 2026. Another comparable one was recorded here earlier the same day. 33 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flood Warning issued May 31 at 8:14AM CDT until June 1 at 4:00PM CDT by NWS New Orleans LA

An estimated 222,013 people live within 50 km of this point.

Nearby, since 8 May 2026

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.

Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeSevere Weather
SeverityMedium
Calamity Score (ours)43 / 100
Our confidence81%
Coordinates30.7490, -88.9397
Nearest CityBiloxi (39 km)
Population Exposed222.0K within 50 km
Impact Tiersignificant
Timestamp2026-05-31T13:14:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.7e0d5b429e8bac1d0f2d0eb04dfb41be

Score Breakdown

35
intensity
70
population
0
cascading
80
historical

Technical Details

EventFlood Warning
UrgencyImmediate
CertaintyObserved
AreaDescSt. Tammany, LA; Hancock, MS; Pearl River, MS; Harrison, MS; Jackson, MS and 3 more areas
HeadlineFlood Warning issued May 31 at 8:14AM CDT until June 1 at 4:00PM CDT by NWS New Orleans LA
Expires2026-06-01T00:15:00-05:00
SenderNameNWS New Orleans LA
HasExactCoordstrue
MergedCount6
MergedIds["noaa_urn:oid:2.49.0.1.840.0.7e0d5b429e8bac1d0f2d0eb04dfb41be73de7b9d.001.1","noaa_urn:oid:2.49.0.1.840.0.24aed1338b1b15d68b0b5654452072e8b4433107.001.1","noaa_urn:oid:2.49.0.1.840.0.4482f167fc61e6dc66adab25c37b3c95ae0a6f55.001.1","noaa_urn:oid:2.49.0.1.840.0.6f17d4231d51f79238c148094189619a5d9f567f.001.1","noaa_urn:oid:2.49.0.1.840.0.160185026294e0af3863abb8964734ea979715dc.001.1","noaa_urn:oid:2.49.0.1.840.0.7bf034f56d7148239bb74af7656041b4540ec05b.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 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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