Special Marine Warning Issued for Coastal Waters Near Brownsville TX

Source: NOAA · South Texas Coastal Waters

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NWS Brownsville has issued a Special Marine Warning for waterspouts and wind gusts 34 knots or greater until 9:00 AM CDT.

What this NWS weather alert tells you, and what most readers miss

This notice was issued by NOAA on June 1, 2026 and geographically references South Texas Coastal Waters. Its severity classification of "high" signals how the issuing agency weighs the risk of harm if no action is taken — "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to — Weather Alerts — determines the regulatory framework behind it, which shapes what remedies (refunds, replacements, recalls, evacuations) are available to affected individuals and who holds statutory responsibility for enforcement.

Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly NOAA detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action — a single localized NWS weather alert is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.

For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (weather, alert, Special Marine Warning, South Texas) map to related alerts in the same area of risk — browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.

Alert Details

Special Marine Warning issued by NWS Brownsville TX. Effective from 2026-05-20T08:27:00-05:00 until 2026-05-20T09:00:00-05:00. Severity: Severe. Urgency: Immediate. Certainty: Likely.

Affected Areas

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.

What You Should Do

Move to safe harbor until hazardous weather passes. Move to safe harbor immediately as gusty winds and high waves are expected. Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately.

Expected Conditions

At 827 AM CDT, a severe thunderstorm capable of producing waterspouts was located 22 nm east of Boca Chica Beach, or 25 nm southeast of South Padre Island, moving south at 30 knots. Hazard: Waterspouts and wind gusts 34 knots or greater. Source: Radar. Impact: Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. The severe thunderstorm will remain over mainly open waters.

Timeline

Alert effective 2026-05-20T08:27:00-05:00. Expires and ends 2026-05-20T09:00:00-05:00.

Original source: NOAA Official Notice ↗

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Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
NWS Brownsville has issued a Special Marine Warning for waterspouts and wind gusts 34 knots or greater until 9:00 AM CDT.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects South Texas Coastal Waters. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.