Coastal Waters Forecast
Issued by NWS Brownsville, TX
Issued by NWS Brownsville, TX
861 FZUS54 KBRO 250254 CWFBRO Coastal Waters Forecast for the Lower Texas Coast National Weather Service Brownsville TX 954 PM CDT Tue Sep 24 2024 Lower Texas coastal waters from Baffin Bay to the mouth of the Rio Grande out 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. GMZ100-251545- 954 PM CDT Tue Sep 24 2024 .SYNOPSIS...Ridge of high pressure across the north half of the Gulf will maintain generally favorable conditions through Wednesday with light to gentle winds and slight seas. Tropical Storm Helene is expected to become Hurricane Helene while moving north-northeast through the eastern Gulf of Mexico later Wednesday through Thursday evening. Resulting swell will begin to arrive to the lower Texas coast beginning Wednesday night, building wave heights and seas. Meanwhile, a weak cold front is expected to pass through the western Gulf Coastal Waters by sunrise on Thursday, accompanied by a brief period of moderate to fresh northerly winds through Thursday evening. The combined effects of the front and swell will result in wave heights and seas peaking between Thursday evening through much Friday. Small Craft Advisories for seas may be needed Thursday through Friday. A weak high pressure resumes on Friday, continuing through the rest of the weekend along with subsiding seas. $$ GMZ130-132-135-251545- 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- 954 PM CDT Tue Sep 24 2024 .REST OF TONIGHT...Southeast winds 5 to 10 knots. Light chop on the bay. Isolated showers and thunderstorms early this morning. .WEDNESDAY...Northeast winds around 5 knots, becoming 5 to 10 knots. Smooth on the bay, increasing to light chop. Scattered showers with isolated thunderstorms until late afternoon. .WEDNESDAY NIGHT...East winds 5 to 10 knots, becoming north after midnight. Light chop on the bay, diminishing to smooth late in the evening, then increasing to light chop after midnight. Isolated thunderstorms. A slight chance of showers early in the evening, then a chance of showers in the late evening and overnight. .THURSDAY...North winds 10 to 15 knots, becoming northeast late in the afternoon. A moderate chop on the bay. A chance of showers with a slight chance of thunderstorms early in the morning, then a slight chance of showers and thunderstorms in the afternoon. .THURSDAY NIGHT...Northeast winds 5 to 10 knots, becoming south after midnight, then becoming west early in the morning. Light chop on the bay, diminishing to smooth after midnight. .FRIDAY...Northwest winds 5 to 10 knots, becoming northeast late in the afternoon. Light chop on the bay, diminishing to smooth in the afternoon. .FRIDAY NIGHT...East winds around 5 knots, becoming south after midnight. Smooth on the bay, increasing to light chop in the late evening and overnight. .SATURDAY...Southwest winds around 5 knots, becoming west early in the afternoon, then becoming east late in the afternoon. Smooth on the bay. .SATURDAY NIGHT...East winds around 5 knots, becoming southwest early in the morning. Smooth on the bay, increasing to light chop after midnight, then diminishing to smooth early in the morning. .SUNDAY...Southwest winds around 5 knots, becoming west late in the morning, then becoming northeast early in the afternoon, becoming east late in the afternoon. Smooth on the bay, increasing to light chop late in the afternoon. .SUNDAY NIGHT...East winds 5 to 10 knots, becoming southwest early in the morning. Light chop on the bay, diminishing to smooth in the late evening and overnight. Winds and waves higher in and near thunderstorms. $$ GMZ150-155-251545- Gulf waters from Port Mansfield to the Rio Grande out 20 nm- Gulf waters from Baffin Bay to Port Mansfield out 20 nm- 954 PM CDT Tue Sep 24 2024 .REST OF TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. Isolated showers and thunderstorms early this morning. .WEDNESDAY...East winds around 5 knots, becoming northeast in the afternoon. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. Scattered showers with isolated thunderstorms until late afternoon. .WEDNESDAY NIGHT...Northeast winds 5 to 10 knots, becoming north after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. Isolated thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. .THURSDAY...North winds 10 to 15 knots. Seas 2 to 3 feet, building to 3 to 5 feet in the afternoon. Wave Detail: Northeast 3 feet at 5 seconds, becoming northeast 5 feet at 7 seconds. A chance of thunderstorms in the morning. Scattered showers. A slight chance of thunderstorms in the afternoon. .THURSDAY NIGHT...Northeast winds 5 to 10 knots, becoming northwest early in the morning. Seas 4 to 5 feet. Wave Detail: Northeast 5 feet at 9 seconds. .FRIDAY...Northwest winds 5 to 10 knots, becoming northeast late in the afternoon. Seas 4 to 5 feet. Wave Detail: East 5 feet at 11 seconds. .FRIDAY NIGHT...East winds 5 to 10 knots, becoming south after midnight. Seas 3 to 4 feet. .SATURDAY...Southwest winds 5 to 10 knots, becoming east late in the afternoon. Seas 2 to 3 feet. .SATURDAY NIGHT...East winds 5 to 10 knots, becoming southwest early in the morning. Seas 2 to 3 feet. .SUNDAY...Southwest winds 5 to 10 knots, becoming northeast late in the afternoon. Seas 1 to 2 feet. .SUNDAY NIGHT...East winds 5 to 10 knots, becoming south early in the morning. Seas 1 to 2 feet. Winds and seas higher in and near thunderstorms. $$ GMZ170-175-251545- Gulf waters from Port Mansfield to the Rio Grande extending from 20 to 60 nm- Gulf waters from Baffin Bay to Port Mansfield extending from 20 to 60 nm- 954 PM CDT Tue Sep 24 2024 .REST OF TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. Isolated showers and thunderstorms. .WEDNESDAY...East winds around 5 knots, becoming northeast in the afternoon. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. Isolated thunderstorms. Scattered showers until late afternoon, then isolated showers late in the afternoon. .WEDNESDAY NIGHT...Northeast winds 5 to 10 knots, becoming north after midnight, then increasing to 10 to 15 knots early in the morning. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 5 seconds. Isolated thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. .THURSDAY...North winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: North 6 feet at 7 seconds. A chance of thunderstorms in the morning. Scattered showers. A slight chance of thunderstorms in the afternoon. .THURSDAY NIGHT...Northeast winds 10 to 15 knots, becoming north 5 to 10 knots after midnight. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast 6 feet at 9 seconds. A slight chance of showers early in the evening. .FRIDAY...Northwest winds 5 to 10 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 6 feet at 10 seconds and northwest 3 feet at 5 seconds. .FRIDAY NIGHT...Northeast winds around 5 knots, becoming southeast late in the evening, then becoming south after midnight. Seas 3 to 5 feet. .SATURDAY...Southwest winds 5 to 10 knots, becoming west in the afternoon. Seas 2 to 4 feet. .SATURDAY NIGHT...East winds around 5 knots, becoming south after midnight. Seas 2 to 3 feet. .SUNDAY...Southwest winds 5 to 10 knots, becoming north late in the afternoon. Seas 2 to 3 feet. .SUNDAY NIGHT...East winds around 5 knots, becoming south early in the morning. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$