Calamity
mediumSevere weatherCalamity Score: 34

Severe weather in United States

PerryUnited StatesNOAA

This alert expired on 30 May 2026 at 04:45 UTC. It is kept here as a record.

It is the 27th strongest of the 84 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 31 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flood Warning issued May 29 at 7:31AM CDT until June 1 at 9:00PM CDT by NWS New Orleans LA

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

Nearby, since 12 March 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 81 % confidence.

The score is ours, computed from intensity, exposed population and local history — not the source’s.

Event Data

TypeSevere weather
Severitymedium
Calamity Score (ours)34 / 100
Our confidence81%
Coordinates30.9638, -89.0121
Nearest CityHattiesburg (49 km)
Population Exposed46.8K within 50 km
Impact Tiersignificant
Timestamp2026-05-29T18:00:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.10a12168ff9e4d1963ad9a83169ef38a

Score Breakdown

35
intensity
40
population
0
cascading
80
historical

Technical Details

EventFlood Warning
UrgencyImmediate
CertaintyObserved
AreaDescHarrison, MS; Pearl River, MS; George, MS; Greene, MS; Jackson, MS and 8 more areas
HeadlineFlood Warning issued May 29 at 7:31AM CDT until June 1 at 9:00PM CDT by NWS New Orleans LA
Expires2026-05-29T23:45:00-05:00
SenderNameNWS New Orleans LA
HasExactCoordstrue
MergedCount14
MergedIds["noaa_urn:oid:2.49.0.1.840.0.10a12168ff9e4d1963ad9a83169ef38ae48a7e91.001.1","noaa_urn:oid:2.49.0.1.840.0.a88091df6ee9f48018da50a5c7a65ee5667f70ac.001.1","noaa_urn:oid:2.49.0.1.840.0.69b789024ec12b8edc30ddb1f36d1ce905688429.001.1","noaa_urn:oid:2.49.0.1.840.0.2631f6cfc3a0cebef6f419d7b8ddaaafaa448dee.001.1","noaa_urn:oid:2.49.0.1.840.0.8507bb7320c8485fbb9f0c9a886f16bdfba7081d.001.1","noaa_urn:oid:2.49.0.1.840.0.82e46fa0725471c4d10e4bf6ab687dd2bede9d91.001.1","noaa_urn:oid:2.49.0.1.840.0.a191abeb3e536939aa058a5e53a7438a597a9713.001.1","noaa_urn:oid:2.49.0.1.840.0.383eb7441ad8e636d74b1c61fd72fc66a1f7d2b6.001.1","noaa_urn:oid:2.49.0.1.840.0.c2713a042c124e5d23908eb10990a0c023323ddf.001.1","noaa_urn:oid:2.49.0.1.840.0.abbb8c2904dc96b0ef2d7ccab56c929c3b810d1d.001.1","noaa_urn:oid:2.49.0.1.840.0.e56d51965cbe87cc72a6941708d416d1dcac1749.001.1","noaa_urn:oid:2.49.0.1.840.0.53dcc4a5ca11f20ef80cbf7367e6b0dc4e80b70b.001.1","noaa_urn:oid:2.49.0.1.840.0.c498ffd4e449056342228442eea594c5ee14d0ff.001.1","noaa_urn:oid:2.49.0.1.840.0.eadc657e07eeaff0c040283b6f027e861d70b699.001.1"]

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.

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Calamity.live data shows a weather event with CalamityScore 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.