Calamity
mediumSevere weatherCalamity Score: 34

Severe weather in United States

PerryUnited StatesNOAA

This alert expired on 28 May 2026 at 21:00 UTC. It is kept here as a record.

It is the 20th strongest of the 85 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 29 May 2026. 41 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flood Warning issued May 28 at 1:56PM CDT until May 28 at 4:00PM CDT by NWS Mobile AL

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 79 % 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 confidence79%
Coordinates31.0256, -88.9470
Nearest CityHattiesburg (47 km)
Population Exposed46.8K within 50 km
Impact Tiersignificant
Timestamp2026-05-31T00:00:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.128ce3014883d39d1c2be3a2b655de9a

Score Breakdown

35
intensity
40
population
0
cascading
80
historical

Technical Details

EventFlood Warning
UrgencyExpected
CertaintyLikely
AreaDescStone, MS; Harrison, MS; Jackson, MS and 8 more areas
HeadlineFlood Warning issued May 28 at 1:56PM CDT until May 28 at 4:00PM CDT by NWS Mobile AL
Expires2026-05-28T16:00:00-05:00
SenderNameNWS Mobile AL
HasExactCoordstrue
MergedCount13
MergedIds["noaa_urn:oid:2.49.0.1.840.0.128ce3014883d39d1c2be3a2b655de9a3f0b1265.001.1","noaa_urn:oid:2.49.0.1.840.0.6b51e22350148b97822073baa91afa9e17b06eaf.001.1","noaa_urn:oid:2.49.0.1.840.0.71b88ce2ec58993a4f28419f72786dea5942df59.001.1","noaa_urn:oid:2.49.0.1.840.0.19eaf586f689e7fabd5a1b4767260d4dd37a157e.001.1","noaa_urn:oid:2.49.0.1.840.0.baf093bfc8f24c6eb20d1b6a79abedb8967a38e9.001.1","noaa_urn:oid:2.49.0.1.840.0.5706c9c68039ba6336559e5c27b45fc7ef2195dc.001.1","noaa_urn:oid:2.49.0.1.840.0.46912839d362868ecb06c39a4901d1babffc3e4a.001.1","noaa_urn:oid:2.49.0.1.840.0.eadd896869c4b20eb20b66deac4bc94f3b4c4e47.001.1","noaa_urn:oid:2.49.0.1.840.0.2e855f8586d4325ce08d31f1ff3e112b99554ac0.001.1","noaa_urn:oid:2.49.0.1.840.0.b481b547cb2916e169a8a69fa4266a53ef1ce4b9.001.1","noaa_urn:oid:2.49.0.1.840.0.b54aaeb39074397789425fe53a005443b6c30710.001.1","noaa_urn:oid:2.49.0.1.840.0.0ee9c9db7f35e068a936c8641a1adefc8f3a86f8.001.1","noaa_urn:oid:2.49.0.1.840.0.f6040262f9c184e65366bdb7a4b91b3f91472a13.001.1"]

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.