Calamity
MediumSevere WeatherCalamity Score: 22

Severe Weather in United States

St. HelenaUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 3 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

2 other detections within 20 km in the last 24 hours, the nearest 20 km from here.

This alert expired on 18 June 2026 at 18:00 UTC. It is kept here as a record.

It is the 11th strongest of the 36 detections recorded within 20 km of this point since 9 March 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flash Flood Warning issued June 18 at 9:44AM CDT until June 18 at 1:00PM CDT by NWS Lake Charles LA

Nearby, since 9 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 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%
Coordinates30.9556, -90.7053
Nearest CityZachary (55 km)
Impact Tierminor
Timestamp2026-06-18T14:44:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.df0a4e735c298f7c17405a553d27c103

Score Breakdown

35
intensity
0
population
0
cascading
80
historical

Technical Details

EventFlash Flood Warning
UrgencyImmediate
CertaintyLikely
AreaDescAvoyelles, LA; Evangeline, LA; Rapides, LA; St. Landry, LA; Pointe Coupee, LA; West Feliciana, LA; St. Tammany, LA and 11 more areas
HeadlineFlash Flood Warning issued June 18 at 9:44AM CDT until June 18 at 1:00PM CDT by NWS Lake Charles LA
Expires2026-06-18T13:00:00-05:00
SenderNameNWS Lake Charles LA
HasExactCoordstrue
MergedCount16
MergedIds["noaa_urn:oid:2.49.0.1.840.0.df0a4e735c298f7c17405a553d27c103a6be01f3.001.1","noaa_urn:oid:2.49.0.1.840.0.99286c1eb17bc4caeb07ad0916ec0f811f2c9cfb.001.1","noaa_urn:oid:2.49.0.1.840.0.b42d1044aff6c06310a0ef512be746ac9f098e01.001.1","noaa_urn:oid:2.49.0.1.840.0.1a43cd69db608ff8add62d6c88ab4b0793a4a990.001.1","noaa_urn:oid:2.49.0.1.840.0.f415ce3d30c03329d8dc6ae2ce7f612c36cade37.001.1","noaa_urn:oid:2.49.0.1.840.0.95ac15ef1077b03b2ec1942326829330af8a20e6.001.1","noaa_urn:oid:2.49.0.1.840.0.96d7d20302627d8020299802521b6b8fce2a4655.001.1","noaa_urn:oid:2.49.0.1.840.0.79ca20f3a07f333c8e662700cf09ab52f52ffa30.001.1","noaa_urn:oid:2.49.0.1.840.0.54e41194766f1cd34c50ac0bc4c3d21ad9b5e033.001.1","noaa_urn:oid:2.49.0.1.840.0.8763349299bea910c961b9cca74c8a3cc4b78a37.001.1","noaa_urn:oid:2.49.0.1.840.0.1cb62a23ad91c1032d86d50bc7cc4a2c1451bde0.001.1","noaa_urn:oid:2.49.0.1.840.0.c7d0340a41ff8bca5dc1f881e0166ff88bfc65fa.001.1","noaa_urn:oid:2.49.0.1.840.0.f1501308994ff09b02baf099dcb8f85f644cf6e7.001.1","noaa_urn:oid:2.49.0.1.840.0.a58ab111ed72efcf7b1892f3b62511ed86444a36.001.1","noaa_urn:oid:2.49.0.1.840.0.4033d504edc4b9d9ff514efc52cd28d1c2b867c2.001.1","noaa_urn:oid:2.49.0.1.840.0.7fa2df2e56ce5bf540f914f4d65f7b18b1b523d6.001.1"]

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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Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.