This alert expired on 18 June 2026 at 15:00 UTC. It is kept here as a record.
It is the 25th strongest of the 43 detections recorded within 20 km of this point since 8 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 6:29AM CDT until June 18 at 10:00AM CDT by NWS Lake Charles LA
An estimated 426,355 people live within 50 km of this point.
Nearby, since 8 March 2026
- May 9, 2026 · score 39 · 7.4 km
- July 10, 2026 · score 48 · 9.8 km
- May 28, 2026 · score 48 · 10.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 out of 100, at 79 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 37 / 100 |
| Our confidence | 79% |
| Coordinates | 30.3861, -90.2364 |
| Nearest City | Hammond (25 km) |
| Population Exposed | 426.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-18T11:29:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.abd838b68368a0110fcc5e9460b2d61b |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Avoyelles, LA; Evangeline, LA; St. Landry, LA; Jefferson, LA; Orleans, LA; St. Charles, LA; Lafourche, LA; St. Charles, LA; St. James, LA; St. John The Baptist, LA and 3 more areas |
| Headline | Flash Flood Warning issued June 18 at 6:29AM CDT until June 18 at 10:00AM CDT by NWS Lake Charles LA |
| Expires | 2026-06-18T10:00:00-05:00 |
| SenderName | NWS Lake Charles LA |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.abd838b68368a0110fcc5e9460b2d61bd29ffe1a.001.1","noaa_urn:oid:2.49.0.1.840.0.7e70f4455c8fd731d7371c2dc32b9feafaa1cef5.001.1","noaa_urn:oid:2.49.0.1.840.0.f1606ae6708debd0923f9865c553ec30a7933e04.001.1","noaa_urn:oid:2.49.0.1.840.0.44d8adb78672b296ddde0604476c9fe1e5752799.001.1","noaa_urn:oid:2.49.0.1.840.0.933ac47ee06354eb409cf258a07b6f9c75fb762b.001.1","noaa_urn:oid:2.49.0.1.840.0.6b01a5a35ecef6fb09604aa726f2ccb1043f9a61.001.1","noaa_urn:oid:2.49.0.1.840.0.b34abe625e3d6164f574d7b12943eec85f765f15.001.1"] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 37/100, near Hammond (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.