Special Marine Warning Issued for Coastal Waters Near Port Mansfield TX

Source: NOAA · Coastal Waters Near Port Mansfield, Texas

This alert is no longer in effect.

NOAA issued it on May 19, 2026, 3 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).

Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.

NWS Brownsville has issued a Special Marine Warning for multiple coastal waters and Laguna Madre areas until 3:00 AM CDT due to a severe thunderstorm capable of producing waterspouts.

Read this weather record in 30 seconds

Record type
Special Marine Warning
Affected area
Coastal Waters Near Port Mansfield, Texas
Issued
May 19, 2026
Issuing authority
NWS Brownsville TX

Marine notices apply to named waters or shoreline zones. They may not describe conditions on land, even when the nearest place name is the same.

Record status: historical. It was issued 3 months ago; use the issuing agency's live warning service for current conditions in Coastal Waters Near Port Mansfield, Texas.

Alert Details

A Special Marine Warning has been issued by the National Weather Service in Brownsville TX. The alert is effective from May 11, 2026 at 1:55 AM CDT until May 11, 2026 at 3:00 AM CDT.

Affected Areas

The warning covers:

  • Laguna Madre From The Arroyo Colorado To 5 NM North Of Port Mansfield TX
  • Laguna Madre From 5 nm North Of Port Mansfield To Baffin Bay TX
  • Coastal waters from Port Mansfield TX to the Rio Grande River out 20 NM
  • Coastal waters from Baffin Bay to Port Mansfield TX out 20 NM
  • Waters from Port Mansfield TX to the Rio Grande River from 20 to 60 NM
  • Waters from Baffin Bay to Port Mansfield TX from 20 to 60 NM

What You Should Do

Move to safe harbor until hazardous weather passes. Waterspouts can easily overturn boats and create locally hazardous seas. Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves.

Expected Conditions

At 1:55 AM CDT, a severe thunderstorm capable of producing waterspouts was located 11 nm east of Riviera Beach, or 36 nm south of Portland, moving southeast at 65 knots. Hazards include waterspouts and wind gusts in excess of 50 knots.

Timeline

The alert is in effect from May 11, 2026 at 1:55 AM CDT and remains until May 11, 2026 at 3:00 AM CDT. The severe thunderstorm will remain over mainly open waters.

Original source: NOAA Official Notice ↗

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Nationwide notices with similar length or severity timing 8

Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.

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 multiple coastal waters and Laguna Madre areas until 3:00 AM CDT due to a severe thunderstorm capable of producing waterspouts.
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 Coastal Waters Near Port Mansfield, Texas. 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.