Right now
The most recent data we hold from NOAA arrived 49 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 23 May 2026 at 18:15 UTC. It is kept here as a record.
It is one of only 3 we have recorded within 20 km of this point since 23 May 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: Flash Flood Warning issued May 23 at 10:13AM CDT until May 23 at 1:15PM CDT by NWS Shreveport LA
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 22 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) | 22 / 100 |
| Legacy data-support index | 0.65/1 |
| Coordinates | 31.3495, -93.7177 |
| Nearest City | Natchitoches (75 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-05-23T15:13:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.aafa66eeca1952c8b0bfa0b7996ffca8 |
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: 2026-05-23T15:13:00.000Z.
First archived: 2026-05-23T15:39:17.102Z. 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 | Natchitoches, LA; Sabine, LA; Sabine, TX; Shelby, TX; Angelina, TX; Sabine, TX; San Augustine, TX |
| Headline | Flash Flood Warning issued May 23 at 10:13AM CDT until May 23 at 1:15PM CDT by NWS Shreveport LA |
| Expires | 2026-05-23T13:15:00-05:00 |
| SenderName | NWS Shreveport LA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.aafa66eeca1952c8b0bfa0b7996ffca81cc6a2e8.001.1","noaa_urn:oid:2.49.0.1.840.0.77829751f61658c51f3ead55a39d9b8d3365768e.001.1"] |
| Iem TypeSummary | D |
| Iem City | 7 ENE Broaddus |
| Iem County | San Augustine |
| Iem State | TX |
| Iem Wfo | SHV |
| Iem Remark | Tree down on FM 705 between Broaddus and Bronson. |
| MergedSources | [{"id":"iem_D_31.340_-94.150_1779545220000","source":"iem","severity":"low","severityValue":25,"timestamp":1779545220000,"latitude":31.34,"longitude":-94.15}] |
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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