This alert expired on 19 May 2026 at 21:02 UTC. It is kept here as a record.
No stronger detection stands among the 91 recorded within 20 km of this point since 15 March 2026 — 68 others scored the same. 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: Severe Thunderstorm Warning issued May 19 at 3:52PM CDT until May 19 at 4:00PM CDT by NWS Shreveport LA
An estimated 255,687 people live within 50 km of this point.
Nearby, since 15 March 2026
- July 7, 2026 · score 43 · 17.3 km
- June 20, 2026 · score 43 · 20.3 km
- June 23, 2026 · score 43 · 22.4 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 84 % 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 | 84% |
| Coordinates | 32.8575, -93.8925 |
| Nearest City | Shreveport (39 km) |
| Population Exposed | 255.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-19T20:52:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.bc50b39b23708630ef0ba75f6e5928d3a0191c61.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Columbia, AR; Lafayette, AR; Bossier, LA; Caddo, LA; Claiborne, LA; Webster, LA; Cass, TX; Harrison, TX; Marion, TX; Panola, TX |
| Headline | Severe Thunderstorm Warning issued May 19 at 3:52PM CDT until May 19 at 4:00PM CDT by NWS Shreveport LA |
| Expires | 2026-05-19T16:02:00-05:00 |
| SenderName | NWS Shreveport LA |
| HasExactCoords | true |
| Iem TypeSummary | D |
| Iem City | 1 SSW Lewisville |
| Iem County | Lafayette |
| Iem State | AR |
| Iem Wfo | SHV |
| Iem Remark | Emergency Management received report of a tree on a vehicle on County Rd 139 at the intersection of County Rd 20. |
| MergedSources | [{"id":"iem_D_33.350_-93.590_1779220860000","source":"iem","severity":"low","severityValue":25,"timestamp":1779220860000,"latitude":33.35,"longitude":-93.59}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
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 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.