Warning Vector

Special Marine Warning

NWS Houston/Galveston TX ยท US

Updated

Details

A Special Marine Warning Remains In Effect Until 1100 AM CST

Event
Special Marine Warning
Issued
Onset
Message expires
Expected end
Category
Meteorological
Urgency
Immediate
Severity
Severe
Certainty
Likely
Response
Avoid

Description

Overview

For the following areas... Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM... Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM... At 1029 AM CST, severe thunderstorms were located along a line extending from near Brazos 439 to 6 nm east of Brazos B133, moving east at 40 knots.

Hazard

Wind gusts 34 knots or greater and large hail.

Source

Radar indicated.

Impacts

Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. Locations impacted include... Brazos B133, Brazos A26, Brazos A85, Brazos 548, and Brazos A70.

Instructions

Move to safe harbor until hazardous weather passes. Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects.

Affected areas

  • Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM
  • Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM

Public contact

Issuer
NWS Houston/Galveston TX

Message record

Received
Issue to receipt
~30s
CAP status
Actual
CAP message type
Update
Lifecycle
Updated
Source
NWWS-OI
Feed
NWWS
Recovered
No
CAP routing and identity
ULID
01M734SRB1JF0CYMQVW1AGK47T
Identifier
urn:oid:2.49.0.1.840.0.b119e7e0cde76a8454f0e7dc8a61bd523cf7b4e1.002.1
Scope
Public
CAP source
211803 v2.3.0
Handling codes
IPAWSv1.0
Issuing office
NWS Houston/Galveston TX
AWIPS ID
CAPHGX
NWWS sequence
nwws_processor.6435
WMO heading
XOUS54
WMO data type
CAP alert message XML (XO)
WMO geography
United States (US)
WMO bulletin number
54

References

Event codes

NameValue
SAMENWS
NationalWeatherServiceMAW

Parameters

NameValue
AWIPSidentifierMWSHGX
WMOidentifierFZUS74 KHGX 101631
NWSheadlineA SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1100 AM CST
eventMotionDescription2026-11-10T16:29:00-00:00...storm...262DEG...42KT...28.59,-95.76 28.04,-95.75
BLOCKCHANNELEAS
BLOCKCHANNELNWEM
VTEC/O.CON.KHGX.MA.W.0084.000000T0000Z-261110T1700Z/
eventEndingTime2026-11-10T11:00:00-06:00
BLOCKCHANNELCMAS
Locations

Location data

  • Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM
  • Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM
NameValue
SAME077350
SAME077370
UGCGMZ350
UGCGMZ370
Polygons
27.97,-95.9 28.1,-96.04 28.32,-96.08 28.41,-95.48 27.94,-95.44 27.97,-95.9