Calamity
MediumSevere WeatherCalamity Score: 43

Severe Weather in United States

St. MartinUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 32 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 8 May 2026 at 20:30 UTC. It is kept here as a record.

No stronger detection stands among the 13 recorded within 20 km of this point since 8 May 2026 — 9 others scored the same.

What the source measured

NOAA reported: Flash Flood Warning issued May 8 at 12:19PM CDT until May 8 at 3:30PM CDT by NWS New Orleans LA

An estimated 137,965 people live within 50 km of this point.

Nearby, since 8 May 2026

How we know

Confirmed by 9 independent sources, including NOAA.

Our own score for this event is 43 out of 100, at 91 % 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)43 / 100
Our confidence91%
Coordinates30.4964, -91.7208
Nearest CityOpelousas (35 km)
Population Exposed138.0K within 50 km
Impact Tiersignificant
Timestamp2026-05-08T17:19:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.c9078b462fc878154b41a6a3f7d73343

Score Breakdown

35
intensity
70
population
0
cascading
80
historical

Technical Details

EventFlash Flood Warning
UrgencyImmediate
CertaintyLikely
AreaDescAscension, LA; East Baton Rouge, LA; Iberville, LA; Livingston, LA; Tangipahoa, LA; West Baton Rouge, LA; Acadia, LA; Allen, LA; Evangeline, LA; Jefferson Davis, LA; Lafayette, LA; St. Landry, LA
HeadlineFlash Flood Warning issued May 8 at 12:19PM CDT until May 8 at 3:30PM CDT by NWS New Orleans LA
Expires2026-05-08T15:30:00-05:00
SenderNameNWS New Orleans LA
HasExactCoordstrue
MergedCount2
MergedIds["noaa_urn:oid:2.49.0.1.840.0.c9078b462fc878154b41a6a3f7d733439e401f09.001.1","noaa_urn:oid:2.49.0.1.840.0.2ba0d67067fc03c259aea5c75a4bebd26aa8df42.001.1"]
Iem TypeSummaryH
Iem Magnitude1
Iem UnitInch
Iem CityPlaucheville
Iem CountyAvoyelles
Iem StateLA
Iem WfoLCH
Iem RemarkMedia reports of quarter size hail in Plaucheville.
MergedSources[{"id":"iem_D_30.880_-91.680_1778248080000","source":"iem","severity":"low","severityValue":25,"timestamp":1778248080000,"latitude":30.88,"longitude":-91.68},{"id":"iem_H_30.930_-91.710_1778247960000","source":"iem","severity":"low","severityValue":25,"timestamp":1778247960000,"latitude":30.93,"longitude":-91.71},{"id":"iem_H_30.790_-91.130_1778244720000","source":"iem","severity":"low","severityValue":25,"timestamp":1778244720000,"latitude":30.79,"longitude":-91.13},{"id":"iem_H_30.840_-91.660_1778248200000","source":"iem","severity":"low","severityValue":25,"timestamp":1778248200000,"latitude":30.84,"longitude":-91.66},{"id":"iem_D_30.840_-91.660_1778248080000","source":"iem","severity":"low","severityValue":25,"timestamp":1778248080000,"latitude":30.84,"longitude":-91.66},{"id":"iem_D_30.930_-91.950_1778247000000","source":"iem","severity":"low","severityValue":25,"timestamp":1778247000000,"latitude":30.93,"longitude":-91.95},{"id":"iem_H_30.930_-91.950_1778247000000","source":"iem","severity":"low","severityValue":25,"timestamp":1778247000000,"latitude":30.93,"longitude":-91.95},{"id":"iem_H_30.970_-91.980_1778246400000","source":"iem","severity":"low","severityValue":25,"timestamp":1778246400000,"latitude":30.97,"longitude":-91.98}]

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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Calamity.live data shows a weather event with CalamityScore 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.