Special Marine Warning
NWS Houston/Galveston TX ยท US
New
Details
Special Marine Warning Issued November 11 At 2:04AM CST Until November 11 At 3:00AM 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... Waters from High Island to Freeport TX from 20 to 60 NM... * Until 300 AM CST. * At 203 AM CST, a strong thunderstorm was located near Galveston A122, moving east at 30 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 A122, Brazos A4, High Island A142, Galveston A171, High Island A457, Galveston A156, and Galveston A66.
Instructions
Move to safe harbor until hazardous weather passes.
Affected areas
- Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM
- Waters from High Island to Freeport TX from 20 to 60 NM
Public contact
- Issuer
- NWS Houston/Galveston TX
- Website
- http://www.weather.gov
Message record
- Received
- Issue to receipt
- ~19s
- CAP status
- Actual
- CAP message type
- Alert
- Lifecycle
- New
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M74T5SFV94TW7DDTJ4Q715AQ
- Identifier
- urn:oid:2.49.0.1.840.0.6a388e2da7801512b54f9e875c2686f623f85568.001.1
- 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.3420
- 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 110804 |
| eventMotionDescription | 2026-11-11T08:03:00-00:00...storm...254DEG...30KT...28.2,-95.01 |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| EAS-ORG | WXR |
| VTEC | /O.NEW.KHGX.MA.W.0086.261111T0804Z-261111T0900Z/ |
| eventEndingTime | 2026-11-11T03:00:00-06:00 |
| BLOCKCHANNEL | CMAS |
Locations
Location data
- Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM
- Waters from High Island to Freeport TX from 20 to 60 NM
| Name | Value |
|---|---|
| SAME | 077370 |
| SAME | 077375 |
| UGC | GMZ370 |
| UGC | GMZ375 |
- Polygons
- 28.24,-94.47 28.18,-94.6 28.14,-94.65 28.08,-95.11 28.11,-95.41 28.3,-95.51 28.64,-94.47 28.32,-94.35 28.24,-94.47