Calamity
MediumSevere WeatherCalamity Score: 22

Severe Weather in United States

Pearl RiverUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 9 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 10 May 2026 at 05:30 UTC. It is kept here as a record.

It is the 45th strongest of the 81 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 9 May 2026. 13 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flood Warning issued May 9 at 8:29AM CDT until May 13 at 4:00PM CDT by NWS New Orleans LA

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 22 out of 100, at 61 % 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)22 / 100
Our confidence61%
Coordinates30.7641, -89.5490
Nearest CitySlidell (58 km)
Impact Tierminor
Timestamp2026-05-10T04:00:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.179e6764b8ebce345ce3ff1ce971a312

Score Breakdown

35
intensity
0
population
0
cascading
80
historical

Technical Details

EventFlood Warning
UrgencyImmediate
CertaintyObserved
AreaDescSt. Tammany, LA; St. Tammany, LA; Hancock, MS; Pearl River, MS; Washington, LA; Pearl River, MS and 4 more areas
HeadlineFlood Warning issued May 9 at 8:29AM CDT until May 13 at 4:00PM CDT by NWS New Orleans LA
Expires2026-05-10T00:30:00-05:00
SenderNameNWS New Orleans LA
HasExactCoordstrue
MergedCount7
MergedIds["noaa_urn:oid:2.49.0.1.840.0.179e6764b8ebce345ce3ff1ce971a312253faecc.001.1","noaa_urn:oid:2.49.0.1.840.0.950e83d45abbba5a14d6bf63e8a1ffc4484507a8.002.1","noaa_urn:oid:2.49.0.1.840.0.950e83d45abbba5a14d6bf63e8a1ffc4484507a8.001.1","noaa_urn:oid:2.49.0.1.840.0.d5184f3e210b048faaf652a0cfefa6085aa10bea.001.1","noaa_urn:oid:2.49.0.1.840.0.2158c949743e09fe0f9995478df8eb83c14b321b.001.1","noaa_urn:oid:2.49.0.1.840.0.98d52f81bbd8805b61f251673ecdfda0ab63401d.001.1","noaa_urn:oid:2.49.0.1.840.0.94dd9e6d006041d1e586122e166a45836895606b.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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