Calamity
MediumSevere WeatherCalamity Score: 39

Severe Weather in United States

United StatesNOAA

Right now

The most recent data we hold from NOAA arrived 19 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

One other detection within 20 km in the last 24 hours, 25 km from here.

This alert expired on 16 March 2026 at 10:30 UTC. It is kept here as a record.

It is the 21st strongest of the 34 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Special Marine Warning issued March 16 at 3:54AM CDT until March 16 at 5:30AM CDT by NWS New Orleans LA

An estimated 87,411 people live within 50 km of this point.

Nearby, since 16 March 2026

How we know

Confirmed by 3 independent sources, including NOAA.

Our own score for this event is 39 out of 100, at 87 % 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)39 / 100
Our confidence87%
Coordinates29.9886, -89.3232
Nearest CityLong Beach (43 km)
Population Exposed87.4K within 50 km
Impact Tiersignificant
Timestamp2026-03-16T08:54:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.a0d3e02e91b6f2eb13e4e860d9ee8098

Score Breakdown

35
intensity
55
population
0
cascading
80
historical

Technical Details

EventSpecial Marine Warning
UrgencyImmediate
CertaintyLikely
AreaDescMississippi Sound; Chandeleur Sound; Breton Sound; Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm; Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM; Coastal waters from Pascagoula Mississippi to Stake Island Louisiana out 20 to 60 NM; Mississippi Sound; Lake Borgne; Chandeleur Sound; Breton Sound; Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM
HeadlineSpecial Marine Warning issued March 16 at 3:54AM CDT until March 16 at 5:30AM CDT by NWS New Orleans LA
Expires2026-03-16T05:30:00-05:00
SenderNameNWS New Orleans LA
HasExactCoordstrue
MergedCount2
MergedIds["noaa_urn:oid:2.49.0.1.840.0.a0d3e02e91b6f2eb13e4e860d9ee809817d0b211.001.1","noaa_urn:oid:2.49.0.1.840.0.ce13b7831e7955d7f56c6bb0007830380f32026f.001.1"]
Spc ReportTypewind
Spc Speed60
Spc Location6 WSW East New Orleans
Spc CountyOrleans
Spc StateLA
Spc CommentsKNEW recorded a wind gust of 60 mph. (LIX)
MergedSources[{"id":"spc_wind_30.28_-89.76_335","source":"spc","severity":"medium","severityValue":45,"timestamp":1773648060000,"latitude":30.28,"longitude":-89.76},{"id":"spc_wind_30.04_-90.03_337","source":"spc","severity":"medium","severityValue":45,"timestamp":1773648240000,"latitude":30.04,"longitude":-90.03}]

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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Calamity.live data shows a weather event with CalamityScore 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.