Right now
The most recent data we hold from NOAA arrived 4 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 27 May 2026 at 16:00 UTC. It is kept here as a record.
It is the 6th strongest of the 20 detections recorded within 20 km of this point since 9 May 2026. Another comparable one was recorded here earlier the same day. 10 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued May 27 at 9:53AM CDT until May 27 at 11:00AM CDT by NWS Brownsville TX
Nearby, since 9 May 2026
- May 20, 2026 · score 48 · 17.0 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 64 % 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) | 22 / 100 |
| Our confidence | 64% |
| Coordinates | 26.1733, -96.9678 |
| Nearest City | Brownsville (61 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-27T14:53:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.37b7516e206d482cfb029a5d456f7618dcf47e93.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Laguna Madre From the Port Of Brownsville to the Arroyo Colorado; Coastal waters from Port Mansfield TX to the Rio Grande River out 20 NM; Waters from Port Mansfield TX to the Rio Grande River from 20 to 60 NM |
| Headline | Special Marine Warning issued May 27 at 9:53AM CDT until May 27 at 11:00AM CDT by NWS Brownsville TX |
| Expires | 2026-05-27T11:00:00-05:00 |
| SenderName | NWS Brownsville TX |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 61 |
| Iem Unit | MPH |
| Iem City | 5 ENE Bayview |
| Iem County | Cameron |
| Iem State | TX |
| Iem Wfo | BRO |
| Iem Remark | At 9:32 AM, ASOS/AWOS site at Port Isabel-Cameron County Airport measured a wind gust of 61 mph associated with a thunderstorm. |
| MergedSources | [{"id":"iem_G_26.160_-97.340_1779892320000","source":"iem","severity":"low","severityValue":25,"timestamp":1779892320000,"latitude":26.16,"longitude":-97.34}] |
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.
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