Right now
The most recent data we hold from NOAA arrived 28 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 9 May 2026 at 15:45 UTC. It is kept here as a record.
No stronger detection stands among the 15 recorded within 20 km of this point since 9 May 2026 — 4 others scored the same. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 9 at 10:03AM CDT until May 9 at 10:45AM CDT by NWS Brownsville TX
An estimated 1,172,885 people live within 50 km of this point.
Nearby, since 9 May 2026
- May 9, 2026 · score 52 · 12.6 km
- May 23, 2026 · score 52 · 17.0 km
- May 24, 2026 · score 48 · 23.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 out of 100, at 81 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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) | 52 / 100 |
| Our confidence | 81% |
| Coordinates | 26.1704, -97.7085 |
| Nearest City | Harlingen (2 km) |
| Population Exposed | 1.2M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-09T15:03:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.12e67e4f34b4a25a38ecc9ac54005aae |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cameron, TX; Willacy, TX; Cameron, TX; Hidalgo, TX; Willacy, TX |
| Headline | Severe Thunderstorm Warning issued May 9 at 10:03AM CDT until May 9 at 10:45AM CDT by NWS Brownsville TX |
| Expires | 2026-05-09T10:45:00-05:00 |
| SenderName | NWS Brownsville TX |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.12e67e4f34b4a25a38ecc9ac54005aae4f5e951d.001.1","noaa_urn:oid:2.49.0.1.840.0.2c1a660037e8252a11326e88f653fe18d496c824.001.1"] |
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 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.
Want to know when something happens near Harlingen?
Calamity.live data shows a weather event with CalamityScore 52/100, near Harlingen (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.