Special Marine Warning
NWS Houston/Galveston TX ยท US
New
This event was updated at .
Details
Special Marine Warning Issued November 11 At 12:54AM CST Until November 11 At 1:30AM CST By NWS Houston/Galveston TX
- Event
- Special Marine Warning
- Issued
- Onset
- Message expires
- Expected end
- Category
- Meteorological
- Urgency
- Immediate
- Severity
- Severe
- Certainty
- Likely
- Response
- Avoid
Description
Overview
SMWHGX The National Weather Service in League City has issued a * Special Marine Warning for... Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM... * Until 130 AM CST. * At 1254 AM CST, a strong thunderstorm was located 7 nm northeast of Buoy 42019, moving east at around 25 knots.
Hazard
Wind gusts 34 knots or greater and small hail.
Source
Radar.
Impacts
Small craft could be damaged in briefly higher winds and suddenly higher waves.
Locations impacted
Galveston A171.
Instructions
Boaters should seek safe harbor immediately until this storm passes. Wind gusts 34 knots or greater, small hail, high waves, dangerous lightning, and heavy rain are possible with this storm.
Affected areas
- Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM
Public contact
- Issuer
- NWS Houston/Galveston TX
- Website
- http://www.weather.gov
Message record
- Received
- Issue to receipt
- ~49s
- CAP status
- Actual
- CAP message type
- Alert
- Lifecycle
- New
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M74P6HRCK2WQ3Z79YBWR921T
- Identifier
- urn:oid:2.49.0.1.840.0.1d87d46ccd8ebe6e840ae505762938ded3890440.001.1
- Sender
- [email protected]
- 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.1630
- WMO heading
- XOUS54
- WMO data type
- CAP alert message XML (XO)
- WMO geography
- United States (US)
- WMO bulletin number
- 54
Event codes
| Name | Value |
|---|---|
| SAME | SMW |
| NationalWeatherService | MAW |
Parameters
| Name | Value |
|---|---|
| AWIPSidentifier | SMWHGX |
| WMOidentifier | WHUS54 KHGX 110654 |
| eventMotionDescription | 2026-11-11T06:54:00-00:00...storm...253DEG...24KT...28.01,-95.27 |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| EAS-ORG | WXR |
| VTEC | /O.NEW.KHGX.MA.W.0085.261111T0654Z-261111T0730Z/ |
| eventEndingTime | 2026-11-11T01:30:00-06:00 |
| BLOCKCHANNEL | CMAS |
Locations
Location data
- Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM
| Name | Value |
|---|---|
| SAME | 077370 |
| UGC | GMZ370 |
- Polygons
- 27.97,-95.29 28.07,-95.34 28.25,-95.05 27.94,-94.96 27.97,-95.29