Marine forecast
Freeport–Matagorda Ship Channel (20-60 nm), TX
- current wind
- 9 kt SSE
- Seas
- 4.3 ft
- Period
- 6 sec
- Air
- 88°F
- 72-hr peak
- 23 kt
Observed Tue 2:15 PM | GMZ370
- Seas now
- 4.3 ft · 6 sec
- Air
- 88°F
- 72-hr peak
- 23 kt
- Peak seas
- 5 ft
In brief
At 2:15 pm CDT on Oct 13, 2026, NDBC station KBQX (Brazos 538 (Transco), 14 miles away) measured wind from the SSE at 9 kt; buoy 42092 measured seas of 4.3 ft. The NWS forecast for Freeport–Matagorda Ship Channel (20-60 nm), TX issued at 1:10 pm CDT on Oct 13, 2026 reads, for this afternoon: “Southeast winds around 15 knots. Seas around 4 feet.”
Source: National Weather Service Houston/Galveston TX forecast; NDBC observations
Wind forecast · ktPeak 23 kt
Seas forecast · ftPeak 5 ft
NWS marine forecast
| Period | Forecast |
|---|---|
| This Afternoon | Southeast winds around 15 knots. Seas around 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of showers and thunderstorms. |
| Tonight | Southeast winds 15 to 20 knots. Seas 4 to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds. A slight chance of showers and thunderstorms in the evening. |
| Wednesday | Southeast winds 15 to 20 knots. Seas around 4 feet. Wave Detail: Southeast 4 feet at 5 seconds. |
| Wednesday Night | Southeast winds 15 to 20 knots. Seas around 4 feet. Wave Detail: Southeast 4 feet at 5 seconds. |
| Thursday | Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds. |
| Thursday Night | East winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. A chance of showers in the evening, then showers likely after midnight. |
| Friday | Northeast winds around 20 knots, increasing to 20 to 25 knots in the afternoon. Seas 3 to 5 feet. Showers with a chance of thunderstorms in the morning, then a chance of showers in the afternoon. |
| Friday Night | Northeast winds 20 to 25 knots, increasing to around 30 knots after midnight. Seas 5 to 7 feet, occasionally to 9 feet, building to 6 to 9 feet, occasionally to 11 feet after midnight. A chance of showers after midnight. |
| Saturday | Northeast winds around 30 knots. Seas 8 to 11 feet, occasionally to 14 feet. |
| Saturday Night | Northeast winds 20 to 25 knots, diminishing to around 20 knots after midnight. Seas 6 to 9 feet, occasionally to 11 feet, subsiding to 5 to 7 feet, occasionally to 9 feet after midnight. Winds and seas higher in and near thunderstorms. |
Issued Tue 1:10 PM by Houston/Galveston TX (product CWFHGX).
Recent buoy conditions
| Time | Wind | Gust | Seas | Water |
|---|---|---|---|---|
| Tue 2:15 PM | 9 kt SSE | — | — | — |
| Tue 1:55 PM | 9 kt SSE | — | — | — |
| Tue 12:55 PM | 8 kt SSE | — | — | — |
| Tue 11:55 AM | 9 kt SE | — | — | — |
| Tue 10:55 AM | 10 kt SSE | — | — | — |
| Tue 9:50 AM | 10 kt SSE | 17 kt | — | — |
| Tue 8:55 AM | 12 kt SSE | — | — | — |
| Tue 7:55 AM | 9 kt SSE | — | — | — |
| Tue 6:55 AM | 11 kt SSE | — | — | — |
| Tue 5:55 AM | 15 kt SSE | 20 kt | — | — |
| Tue 4:55 AM | 14 kt SSE | — | — | — |
| Tue 3:55 AM | 14 kt SSE | — | — | — |
Observed Tue 2:15 PM at NDBC buoy KBQX (Brazos 538 (Transco)), 14.3 miles away. Seas from buoy 42092 (Aransas Pass Channel Entrance S, TX (252)), 102.7 miles away, at Tue 2:00 PM.
Frequently asked questions
What is the marine forecast for Freeport–Matagorda Ship Channel (20-60 nm) today?
This Afternoon: Southeast winds around 15 knots. Seas around 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of showers and thunderstorms.
Is there a small craft advisory for Freeport–Matagorda Ship Channel (20-60 nm)?
No advisories, warnings or watches are in effect for NWS zone GMZ370 as of the last update on this page. Advisories can be issued at any time; check the current bulletin before leaving the dock.
How high are the waves at Freeport–Matagorda Ship Channel (20-60 nm) right now?
Seas are running 4.3 ft at a 6-second period, measured at NDBC buoy KBQX Tue 2:15 PM, 14.3 miles from this zone. The forecast peaks at 5.0 ft Wed 12 AM.
What do the wind speeds in knots mean?
One knot is 1.15 mph. The National Weather Service issues a small craft advisory for sustained winds of roughly 22–33 knots or hazardous seas, a gale warning at 34–47 knots, and a storm warning at 48 knots and above. Exact advisory thresholds vary by forecast office and by water body — a bay reaches dangerous chop at a lower wind speed than open ocean.
Where does this forecast come from?
The forecast text is the National Weather Service's own marine bulletin for zone GMZ370, issued by Houston/Galveston TX, reproduced in full. The wind and seas charts are drawn from the NWS gridded forecast for a point inside the zone. Observations come from the nearest reporting NDBC buoy. We are not affiliated with NOAA or the National Weather Service.
Forecast: NOAA/NWS product CWFHGX, issued Tue 1:10 PM. Observations: NOAA National Data Buoy Center station KBQX, read Tue 2:15 PM. Retrieved Oct 13, 2:42 PM. Conditions offshore change faster than any page can be rebuilt, so check the current NWS bulletin and your own instruments before going out.