Right now
The most recent data we hold from NOAA arrived 65 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 21 May 2026 at 03:30 UTC. It is kept here as a record.
No stronger detection stands among the 13 recorded within 20 km of this point since 9 May 2026 — 4 others scored the same. The last comparable one was on 9 May 2026. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued May 20 at 6:29PM CDT until May 20 at 10:30PM CDT by NWS Lake Charles LA
Urban PEI: 152,128 within a heuristic 50 km radius; not unique people.
Nearby, since 9 May 2026
- July 1, 2026 · score 43 · 10.1 km
- July 5, 2026 · score 43 · 12.8 km
- July 11, 2026 · score 43 · 13.2 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 43 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 43 / 100 |
| Legacy data-support index | 0.86/1 |
| Coordinates | 29.9305, -91.7952 |
| Nearest City | New Iberia (8 km) |
| Urban exposure index (PEI) | 152.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-20T23:29:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.45dd36d76e97e7203df39ed0b474a86742b18228.001.1 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-05-20T23:29:00.000Z.
First archived: 2026-05-21T02:21:23.934Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Iberia, LA; St. Martin, LA; St. Mary, LA |
| Headline | Flash Flood Warning issued May 20 at 6:29PM CDT until May 20 at 10:30PM CDT by NWS Lake Charles LA |
| Expires | 2026-05-20T22:30:00-05:00 |
| SenderName | NWS Lake Charles LA |
| HasExactCoords | true |
| Iem TypeSummary | F |
| Iem City | 1 SSW Stephensville |
| Iem County | St. Martin |
| Iem State | LA |
| Iem Wfo | LCH |
| Iem Remark | Report of a flooded road in Stephensville in Lower St Martin on Stephensville Road and Bayou Estates Subdivision. |
| MergedSources | [{"id":"iem_F_29.760_-91.170_1779324300000","source":"iem","severity":"low","severityValue":25,"timestamp":1779324300000,"latitude":29.76,"longitude":-91.17}] |
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.
Review the area, threshold and delivery channel in your account.
Want to know when something happens near New Iberia?