478 FZUS54 KBRO 181440 CWFBRO Coastal Waters Forecast National Weather Service Brownsville TX 940 AM CDT Sat Sep 18 2021 Lower Texas coastal waters from Baffin Bay to the mouth of the Rio Grande out to 60 NM. Seas are provided as a range of the average height of the highest 1/3 of the waves, along with the occasional height of the average highest 10 percent of the waves. GMZ100-190245- Synopsis for Baffin Bay to Rio Grande out 60 nm- 940 AM CDT Sat Sep 18 2021 .SYNOPSIS...Weak high pressure located in the Gulf of Mexico will continue to provide light and variable winds and low seas for the weekend. Isolated to scattered showers and thunderstorm will be possible across the coastal waters every day. Low pressure will move into the area early next week, which will strengthen the onshore flow resulting in higher winds increasing winds and seas. $$ GMZ130-132-135-190245- Laguna Madre from the Port of Brownsville to the Arroyo Colorado- Laguna Madre from the Arroyo Colorado To 5 NM north of Port Mansfield TX- Laguna Madre from 5 nm north of Port Mansfield to Baffin Bay TX- 940 AM CDT Sat Sep 18 2021 .REST OF TODAY...Northwest winds around 5 knots becoming northeast in the afternoon. Smooth on the bay building to a light chop in the afternoon. .TONIGHT...Southeast winds 5 to 10 knots shifting southwest after midnight. A light chop on the bay. .SUNDAY...Southwest winds around 5 knots becoming east in the afternoon. Smooth on the bay building to a light chop in the afternoon. .SUNDAY NIGHT...South winds 5 to 10 knots. A light chop on the bay. .MONDAY...South winds 10 to 15 knots. A moderate chop on the bay. .MONDAY NIGHT...South winds 10 to 15 knots. A moderate chop on the bay. .TUESDAY...Southeast winds 10 to 15 knots. A moderate chop on the bay. Chance of showers and thunderstorms. .TUESDAY NIGHT...Southeast winds 5 to 10 knots shifting east after midnight. A light chop on the bay. Showers and thunderstorms likely. .WEDNESDAY...North winds 10 to 15 knots. A moderate chop on the bay. Chance of showers and slight chance of thunderstorms. .WEDNESDAY NIGHT...Northeast winds 10 to 15 knots diminishing to 5 to 10 knots after midnight. A moderate chop on the bay subsiding to a light chop after midnight. Slight chance of showers. $$ GMZ150-155-190245- Coastal waters from Port Mansfield to the Rio Grande out 20 nm- Coastal waters from Baffin Bay to Port Mansfield out 20 nm- 940 AM CDT Sat Sep 18 2021 .REST OF TODAY...Northwest winds around 5 knots becoming northeast in the afternoon. Seas 2 feet or less. .TONIGHT...Southeast winds 5 to 10 knots shifting south after midnight. Seas 2 feet or less building to 2 to 3 feet after midnight. .SUNDAY...Southwest winds around 5 knots becoming east in the afternoon. Seas 2 feet or less. Isolated showers and thunderstorms. .SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet. Slight chance of showers and thunderstorms after midnight. .MONDAY...South winds 10 to 15 knots. Seas 2 to 4 feet. Slight chance of showers and thunderstorms through the day. .MONDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet. Slight chance of showers and thunderstorms after midnight. .TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Chance of showers and thunderstorms. .TUESDAY NIGHT...Southeast winds 5 to 10 knots shifting east after midnight. Seas 2 to 3 feet. Showers and thunderstorms likely. .WEDNESDAY...North winds 10 to 15 knots. Seas 2 to 4 feet. Chance of showers and slight chance of thunderstorms. .WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet. Slight chance of showers. $$ GMZ170-175-190245- Waters from Port Mansfield to the Rio Grande extending from 20 to 60 nm- Waters from Baffin Bay to Port Mansfield extending from 20 to 60 nm- 940 AM CDT Sat Sep 18 2021 .REST OF TODAY...Northwest winds around 5 knots becoming northeast in the afternoon. Seas 2 feet or less. Isolated showers and thunderstorms. .TONIGHT...East winds 5 to 10 knots shifting south after midnight. Seas 2 feet or less building to 2 to 3 feet after midnight. .SUNDAY...West winds around 5 knots becoming east in the afternoon. Seas 2 to 4 feet. Isolated showers and thunderstorms. .SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet. Slight chance of showers and thunderstorms through the night. .MONDAY...South winds 10 to 15 knots. Seas 3 to 5 feet. Slight chance of showers and thunderstorms. .MONDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 5 feet. Slight chance of showers and thunderstorms after midnight. .TUESDAY...South winds 10 to 15 knots becoming southeast 5 to 10 knots in the afternoon. Seas 2 to 4 feet. Chance of showers and thunderstorms. .TUESDAY NIGHT...Southeast winds 5 to 10 knots shifting east after midnight. Seas 2 to 3 feet. Showers and thunderstorms likely. .WEDNESDAY...North winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon. Seas 2 to 4 feet. Chance of showers and slight chance of thunderstorms. .WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet. Slight chance of showers. $$