Calamity
MediumSevere WeatherCalamity Score: 43

Severe Weather in United States

StoneUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 2 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 28 May 2026 at 14:00 UTC. It is kept here as a record.

It is the 22nd strongest of the 112 detections recorded within 20 km of this point since 8 May 2026. Another comparable one was recorded here earlier the same day. 24 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flood Warning issued May 27 at 8:47PM CDT until May 30 at 11:17PM CDT by NWS Mobile AL

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 80 % 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 confidence80%
Coordinates30.7746, -89.0781
Nearest CityWest Gulfport (42 km)
Population Exposed222.0K within 50 km
Impact Tiersignificant
Timestamp2026-05-28T01:47:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.df3c02fdbc19550597089d6c8f867f95

Score Breakdown

35
intensity
70
population
0
cascading
80
historical

Technical Details

EventFlood Warning
UrgencyImmediate
CertaintyObserved
AreaDescGeorge, MS; Greene, MS; Perry, MS; George, MS; Greene, MS; St. Tammany, LA; Hancock, MS; Pearl River, MS and 1 more areas
HeadlineFlood Warning issued May 27 at 8:47PM CDT until May 30 at 11:17PM CDT by NWS Mobile AL
Expires2026-05-28T09:00:00-05:00
SenderNameNWS Mobile AL
HasExactCoordstrue
MergedCount4
MergedIds["noaa_urn:oid:2.49.0.1.840.0.df3c02fdbc19550597089d6c8f867f9503a6b0a2.001.1","noaa_urn:oid:2.49.0.1.840.0.a2e06fd903f1a15e540b2d07cd18a15c26b118cf.001.1","noaa_urn:oid:2.49.0.1.840.0.c3d3820258d4507e4321d34d941658b8dd2491ee.001.1","noaa_urn:oid:2.49.0.1.840.0.a88c6ef283fe094dee5f5fa7b827d9855fdb974d.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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