NWS coastal zone GMZ255

Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM weather alerts

Marine alerts linked to this verified National Weather Service zone.

NWS feedSource freshLast successful check: Aug 2, 2026, 2:18 AM UTC

Current answer

Active alert check

No active alerts found

The latest successful NWS collection contained no active public alerts matched to Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM. Conditions can change.

How matching works

Official zone ID: GMZ255
Zone type: coastal
State: Marine or multi-state area
Metadata verified: Yes, from NWS

Context only

Recently ended alerts

Ended Official severity: Severe

Special Marine Warning for San Antonio, Mesquite, and Espiritu Santo Bays; Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM

Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM, San Antonio, Mesquite, and Espiritu Santo Bays

Ended Jul 23, 2026, 6:15 PM UTC

Ended Official severity: Minor

Small Craft Advisory for Copano, Aransas, and Redfish Bays; San Antonio, Mesquite, and Espiritu Santo Bays; Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM +1 more

Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM, Copano, Aransas, and Redfish Bays, San Antonio, Mesquite, and Espiritu Santo Bays and 1 more

Ended Jul 24, 2026, 6:00 AM UTC

Zone matching is not a personal forecast

This page uses official NWS zone membership. For exact location matching, an alert must include official geometry or be linked to a verified zone geometry that contains the point.

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