Calamity
MediumSevere WeatherCalamity Score: 22

Severe Weather in United States

United StatesNOAA

Right now

The most recent data we hold from NOAA arrived 10 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 24 May 2026 at 04:15 UTC. It is kept here as a record.

No stronger detection stands among the 13 recorded within 20 km of this point since 11 May 2026 — 11 others scored the same. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Special Marine Warning issued May 23 at 10:31PM CDT until May 23 at 11:15PM CDT by NWS New Orleans LA

Nearby, since 11 May 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 59 % 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 confidence59%
Coordinates28.6483, -90.8833
Nearest CityHouma (107 km)
Impact Tierminor
Timestamp2026-05-24T03:31:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.9acaa4fa3f8b1877478dc9f2db5d6a33

Score Breakdown

35
intensity
0
population
0
cascading
80
historical

Technical Details

EventSpecial Marine Warning
UrgencyImmediate
CertaintyLikely
AreaDescCoastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM; Terrebonne Bay; Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm; Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM
HeadlineSpecial Marine Warning issued May 23 at 10:31PM CDT until May 23 at 11:15PM CDT by NWS New Orleans LA
Expires2026-05-23T23:15:00-05:00
SenderNameNWS New Orleans LA
HasExactCoordstrue
MergedCount2
MergedIds["noaa_urn:oid:2.49.0.1.840.0.9acaa4fa3f8b1877478dc9f2db5d6a336ae17fb8.001.1","noaa_urn:oid:2.49.0.1.840.0.71885b5b79a593dd7279300c0d4f70da6522873c.001.1"]

Safety Information

Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.

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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