Calamity
MediumSevere WeatherCalamity Score: 34

Severe Weather near Hattiesburg

PerryUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 3 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 26 May 2026 at 12:15 UTC. It is kept here as a record.

It is the 9th strongest of the 56 detections recorded within 20 km of this point since 7 May 2026. Another comparable one was recorded here earlier the same day. 21 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flood Warning issued May 25 at 3:11PM CDT until May 27 at 4:49AM CDT by NWS New Orleans LA

An estimated 46,805 people live within 50 km of this point.

Nearby, since 7 May 2026

How we know

One source: NOAA. Not yet confirmed by a second, independent source.

Our own score for this event is 34 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)34 / 100
Our confidence80%
Coordinates31.2006, -89.1171
Nearest CityHattiesburg (22 km)
Population Exposed46.8K within 50 km
Impact Tiersignificant
Timestamp2026-05-27T17:00:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.6423df0799b095bbb857e1866bbe0b24

Score Breakdown

35
intensity
40
population
0
cascading
80
historical

Technical Details

EventFlood Warning
UrgencyExpected
CertaintyLikely
AreaDescPearl River, MS; St. Tammany, LA; Hancock, MS; Pearl River, MS; Harrison, MS and 3 more areas
HeadlineFlood Warning issued May 25 at 3:11PM CDT until May 27 at 4:49AM CDT by NWS New Orleans LA
Expires2026-05-26T07:15:00-05:00
SenderNameNWS New Orleans LA
HasExactCoordstrue
MergedCount9
MergedIds["noaa_urn:oid:2.49.0.1.840.0.6423df0799b095bbb857e1866bbe0b2472c8727b.001.1","noaa_urn:oid:2.49.0.1.840.0.d33f164de9062b2c898b22465fa2034d70cddade.001.1","noaa_urn:oid:2.49.0.1.840.0.d906e3428a590bfe7492b9597defb22d4cc278e2.001.1","noaa_urn:oid:2.49.0.1.840.0.adfe48b13858d728629368a16c0747ede0b9e7f2.001.1","noaa_urn:oid:2.49.0.1.840.0.1b33cd81f63bddf4f5aa908633599f0236a3d867.001.1","noaa_urn:oid:2.49.0.1.840.0.71b7a18c6e5a9c3ba9b3778aec32b242bd2b0419.001.1","noaa_urn:oid:2.49.0.1.840.0.580de2db63a4b47f8e3b9ca60025770af2d5afc0.001.1","noaa_urn:oid:2.49.0.1.840.0.4497d28db9e62148591450835f7a7f9b7dd65cdc.001.1","noaa_urn:oid:2.49.0.1.840.0.33802187dca0b4049677b9965ffc9034fc87070e.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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