Port Aransas to Matagorda Ship Channel Marine Forecast
| Today...East Winds 5 To 10 Knots, Increasing To 10 To 15 Knots Late This Morning And Afternoon. Seas 3 To 4 Feet, Occasionally To 5 Feet. Wave Detail: East 4 Feet At 7 Seconds. A Slight Chance Of Showers. |
| Tonight...East Winds 10 To 15 Knots. Seas 3 To 5 Feet, Occasionally To 6 Feet. Wave Detail: East 4 Feet At 8 Seconds. A Slight Chance Of Thunderstorms. A Chance Of Showers In The Evening, Then Showers Likely After Midnight. |
| Tuesday...East Winds 5 To 10 Knots. Seas 3 To 4 Feet, Occasionally To 5 Feet. Wave Detail: East 4 Feet At 8 Seconds. A Chance Of Showers With A Slight Chance Of Thunderstorms. |
| Tuesday Night...East Winds 5 To 10 Knots. Seas 3 To 4 Feet, Occasionally To 5 Feet. Wave Detail: East 4 Feet At 8 Seconds And South 1 Foot At 5 Seconds. A Slight Chance Of Showers And Thunderstorms In The Evening, Then A Chance Of Showers And Thunderstorms After Midnight. |
| Wednesday...Southeast Winds 5 To 10 Knots. Seas 3 To 4 Feet, Occasionally To 5 Feet. Wave Detail: East 3 Feet At 8 Seconds. A Chance Of Showers With A Slight Chance Of Thunderstorms. |
| Wednesday Night...Southeast Winds 10 To 15 Knots. Seas 3 To 4 Feet, Occasionally To 5 Feet. Wave Detail: East 4 Feet At 8 Seconds. |
| Thursday...East Winds 10 To 15 Knots. Seas 3 To 4 Feet, Occasionally To 5 Feet. A Chance Of Showers. |
| Thursday Night...East Winds 10 To 15 Knots. Seas 3 To 4 Feet, Occasionally To 5 Feet. |
| Friday...Southeast Winds Around 10 Knots. Seas 3 To 4 Feet, Occasionally To 5 Feet. A Chance Of Showers In The Morning. |
| Friday Night...Southeast Winds 5 To 10 Knots. Seas Around 3 Feet. Winds And Seas Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service Corpus Christi TX 1250pm CDT Sat Oct 24 2026 Issued at 1208pm CDT Sat Oct 24 2026 Upper-level high pressure will continue to slowly slide toward the ECONUS through mid-week. This places much of Texas under a SW'ly flow aloft. Meanwhile, an upper-level low across the Desert Southwest will slowly lift to the NE, with its forward momentum slowed down by its interaction with a secondary trough across the Pacific Northwest. Having this slowdown will allow shortwave disturbances to pivot around the aforementioned low as it enters the Great Basin, and southwesterly flow will allow upper-level energy and Pacific moisture from Hurricane Vance (eastern Pacific basin) to advect into the region at the same time. All that to say, rain chances return to South Texas! Sunday night, PWATs (Precipitable Waters) will briefly bottom out to 1.0-1.2" but Monday afternoon is when the PWAT (Precipitable Water) values start climbing back up. Global ensembles are maxing out values Tuesday at 1.7-1.9", but it's not out of the realm of possibility to see even higher PWAT (Precipitable Water) values given the influence from Vance. All this to say, starting Monday night, we're in for a wetter period. Should the trend of PWATs (Precipitable Waters) trend wetter, it is possible we see accumulations reach 1-2 inches in the strongest showers/storms, but the general consensus will be near half-inch amounts. Anyone outdoors on Tuesday may need to reconsider events or move activities indoors. This will also keep temperatures cooler than what NBM guidance is suggesting (ended up knocking the temperatures down given the rain/widespread cloud cover Tuesday). We remain in the 80s for highs throughout the forecast period. If that wasn't enough, we're closely monitoring the guidance for coastal flooding concerns. With the proximity of the full moon and an increase in wave periods, water levels are forecast to approach 1.7 to 2.0 ft above MSL for the high tide cycles from Monday through at least mid-week. With high tide in that period occurring daylight/evening, an advisory will likely be needed. Marine Issued at 1208pm CDT Sat Oct 24 2026 Expect mostly moderate E/SE winds (BF 4), increasing to fresh breezes in the afternoons. Seas will be 3-4 ft through Monday afternoon, before increasing to 5-6 ft Monday night and decreasing back to near 4 ft by Tuesday night. Rain chances will increase to 40-60% Monday and Tuesday across the Gulf waters. Fire Weather Issued at 1208pm CDT Sat Oct 24 2026 With forecast minimum relative humidity values remaining above 30% and weak winds will limit the overall fire risk. Additionally, rain chances increase to 30 to 60 percent across the Brush Country on Tuesday. NOAA Corpus Christi TX Office: Watches - Warnings - Advisories TX...None. GM...None. |
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