This alert expired on 20 June 2026 at 15:30 UTC. It is kept here as a record.
No stronger detection stands among the 7 recorded within 20 km of this point since 20 June 2026 — 4 others scored the same. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 20 at 7:14AM CDT until June 20 at 10:30AM CDT by NWS Shreveport LA
An estimated 255,687 people live within 50 km of this point.
Nearby, since 20 June 2026
- July 6, 2026 · score 43 · 18.5 km
- June 23, 2026 · score 43 · 18.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 80 % 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) | 43 / 100 |
| Our confidence | 80% |
| Coordinates | 32.1884, -93.6102 |
| Nearest City | Bossier City (39 km) |
| Population Exposed | 255.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-20T12:14:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.bbb19103d3ea0f07682d5d80f2f04e06 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Bienville, LA; Caldwell, LA; Jackson, LA; La Salle, LA; Natchitoches, LA; Ouachita, LA; Winn, LA; Columbia, AR; Lafayette, AR; Miller, AR; Bossier, LA; Caddo, LA; Webster, LA; Cass, TX; Marion, TX; Columbia, AR; Union, AR; Claiborne, LA; Union, LA; Webster, LA and 6 more areas |
| Headline | Flash Flood Warning issued June 20 at 7:14AM CDT until June 20 at 10:30AM CDT by NWS Shreveport LA |
| Expires | 2026-06-20T10:30:00-05:00 |
| SenderName | NWS Shreveport LA |
| HasExactCoords | true |
| MergedCount | 9 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.bbb19103d3ea0f07682d5d80f2f04e060bafb021.001.1","noaa_urn:oid:2.49.0.1.840.0.0a16fcafd1336228071195c49780cb8cc390f92e.001.1","noaa_urn:oid:2.49.0.1.840.0.944900216847ea974f6d23ee2ccc499246f05e10.001.1","noaa_urn:oid:2.49.0.1.840.0.0055e431440154ad72f794f7f90261db28ad7936.001.1","noaa_urn:oid:2.49.0.1.840.0.d53f174a22f4bb0356a8ed0070041967e72f4c90.001.1","noaa_urn:oid:2.49.0.1.840.0.5e41ac2d8569b547fd8d82ea5eb68799672e875f.001.1","noaa_urn:oid:2.49.0.1.840.0.4f7bcd8f07e0ac85de6e72e38a912ffc64351b06.001.1","noaa_urn:oid:2.49.0.1.840.0.19dabe8e8c4599ae4d2bec8c4a25dc9f16718a4a.001.1","noaa_urn:oid:2.49.0.1.840.0.cb622a4579b1296c8da0a76a23b07e71488ec7e9.001.1"] |
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.
Want to know when something happens in this area?
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.