Galveston Bay Marine Forecast
| This Afternoon...East Winds 10 To 15 Knots With Gusts Up To 20 Knots. Bay Waters Slightly Choppy. |
| Tonight...East Winds 10 To 15 Knots With Gusts Up To 20 Knots. Bay Waters Slightly Choppy. |
| Saturday...East Winds 10 To 15 Knots With Gusts Up To 20 Knots. Bay Waters Slightly Choppy. |
| Saturday Night...East Winds 10 To 15 Knots With Gusts Up To 20 Knots. Bay Waters Slightly Choppy. |
| Sunday...East Winds Around 15 Knots With Gusts Up To 20 Knots. Bay Waters Slightly Choppy. A Chance Of Showers. |
| Sunday Night...East Winds 10 To 15 Knots. Bay Waters Slightly Choppy. A Chance Of Showers After Midnight. |
| Monday...East Winds 10 To 15 Knots. Bay Waters Slightly Choppy. A Chance Of Showers. |
| Monday Night...Southeast Winds Around 10 Knots. Bay Waters Smooth To Slightly Choppy. |
| Tuesday...East Winds Around 10 Knots. Bay Waters Smooth To Slightly Choppy. |
| Tuesday Night...Southeast Winds 5 To 10 Knots, Becoming Northeast After Midnight. Bay Waters Smooth. |
| Area Forecast Discussion National Weather Service Houston/Galveston TX 1206pm CDT Fri Oct 3 2025 ...NewARINE... .KEY MESSAGES... Issued at 1116am CDT Fri Oct 3 2025 - Rising moisture will reduce fire weather danger today, though continue to use caution when working with open flames/equipment that can cause sparks, especially in dry spots. - Rain chances rise into the weekend as moisture deepens enough to allow for some isolated seabreeze showers/storms along the coast. - Small craft will need to exercise caution today into the weekend due to increased winds and seas. A Small Craft Advisory has been issued for the waters off of Galveston Bay for this evening through Saturday afternoon due to expected frequent wind gusts up to 25kt and seas up to 6-8ft possible. - Beachgoers should also be aware that there will likely be an increased risk of rip currents this weekend. Issued at 1116am CDT Fri Oct 3 2025 An easterly flow, thanks to a surface high pressure moving across the East Coast, has developed across the region ushering in slightly more moisture (as of Noon, the dew point temperatures are running around 5 degrees higher currently than they were yesterday). This slightly higher moisture combined with a weak upper level low spinning over the north central Gulf will allow for some scattered showers and isolated thunderstorms to begin today and remain possible through the start of next week. The best chance for shower and thunderstorm activity will remain over the coastal waters, but areas south of I-10 may see some scattered activity during the afternoon hours along the sea breeze. Areas north of I-10 may see an isolated shower or storm as well, but chances are quite low (10-20%). An upper-level ridge of high pressure is expected to develop over Texas by midweek next week which will hamper thunderstorm development, but daytime heating and PWATs (Precipitable Waters) near 1.6-1.9" will likely be able to develop at least some activity along the sea breeze during the afternoon hours. Temperatures will continue to run slightly above normal through next week with highs in the upper 80s to low or mid-90s, and overnight lows in the upper 60s to mid-70s. Planning on enjoying this summer-like weather at the beach? Be aware that persistent, moderate onshore flow will lead to an increased risk of rip currents along Gulf-facing beaches. Marine Issued at 1116am CDT Fri Oct 3 2025 Moderate easterly flow will continue through the weekend with sustained winds of 15-20kt and gusts to 25kt. This increase in winds will lead to an increase in wave heigheights as well with seas of 4-6ft expected by this evening. A Small Craft Advisory has been issued for the coastal waters off of Galveston Bay out to 60nm beginning this evening and continuing until Saturday evening as wind gusts of 25kt become more frequent and seas occasionally increase to 6-8ft. This Advisory may need to be extended into Saturday night, and small craft should exercise caution in Galveston Bay and the coastal waters off of Matagorda Bay through at least Saturday morning as well. The easterly flow will persist into at least midweek next week, but is expected to be lighter. The persistent onshore flow this weekend will lead to elevated water levels (around 3.0-3.5ft above MLLW during times of high tide) and an increase risk of rip currents. There will be a daily chance through at least midweek next week of scattered showers and isolated thunderstorms in the coastal waters. Fire Weather Issued at 1222am CDT Fri Oct 3 2025 Active burn bans in SE Texas: Houston, Madison, Colorado, and Wharton counties. Improving moisture levels are anticipated today/this weekend, with afternoon RH values ranging from 33-50 percent inland. Observed 10 hour fuel moisture shows a few pockets below the 25th percentile, forecasted to rise today into the weekend. On the whole, the fire weather danger should be mitigated by these conditions, though caution should still be exercised when handling open flames in any areas with particularly dry vegetation. Be mindful when handling equipment that could create unintended sparks (i.e. loose chains). Expect further improvement in conditions this weekend into next week. 03 NOAA Houston/Galveston TX Office: Watches - Warnings - Advisories TX...None. GM...Small Craft Should Exercise Caution from 5pm CDT this afternoon through Saturday morning for GMZ335. Small Craft Should Exercise Caution through Saturday morning for GMZ350-370. Small Craft Should Exercise Caution until 5pm CDT this afternoon for GMZ355-375. Small Craft Advisory from 5pm this afternoon to 7pm CDT Saturday for GMZ355-375. |
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