Coastal Waters Forecast
Issued by NWS Brownsville, TX
Issued by NWS Brownsville, TX
785 FZUS54 KBRO 251906 CWFBRO Coastal Waters Forecast for the Lower Texas Coast National Weather Service Brownsville TX 106 PM CST Tue Nov 25 2025 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. GMZ100-260745- 106 PM CST Tue Nov 25 2025 .SYNOPSIS...A cold front followed by strong high pressure moving across north Texas into Arkansas Wednesday through early Thursday will bring strong northeast winds and high and rough seas Wednesday into Wednesday evening. The high pressure ridge will weaken slightly as it moves across the southeast states later Thursday through early Saturday, with diminishing winds and slowly subsiding seas into Friday before strong southerly flow returns later Friday into early Saturday. Winds and seas may briefly subside late Saturday and Saturday night ahead of another strong front early Sunday, which will bring a return of high and rough seas and strong northerly winds. Small Craft Advisories may be required Wednesday, Friday night into Saturday, and again Sunday and Sunday night. $$ GMZ130-132-135-260745- 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- 106 PM CST Tue Nov 25 2025 ...Small Craft Advisory Likely Needed Wednesday... .REST OF THIS AFTERNOON AND EVENING...East winds 10 knots. A light chop on the bay. .TONIGHT...East winds 5 to 10 knots, becoming northeast 10 to 15 knots early this morning. Light chop on the bay, increasing to a moderate chop early this morning. A chance of showers with a slight chance of thunderstorms toward midnight. Showers likely with a chance of thunderstorms after midnight. .WEDNESDAY...Northeast winds 15 to 20 knots, increasing to 20 to 25 knots with gusts up to 30 knots in the afternoon, then diminishing to 15 to 20 knots late in the afternoon. Choppy on the bay, increasing to rough in the afternoon, then diminishing to choppy late in the afternoon. A chance of showers and thunderstorms early in the morning, then a slight chance of showers and thunderstorms late in the morning. .WEDNESDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots in the late evening and overnight. Choppy on the bay, diminishing to a moderate chop in the late evening and overnight. .THURSDAY...Northeast winds 10 to 15 knots. A moderate chop on the bay. .THURSDAY NIGHT...East winds 10 to 15 knots. A moderate chop on the bay. .FRIDAY...East winds 10 to 15 knots, becoming southeast 15 to 20 knots with gusts up to 30 knots in the afternoon. Choppy on the bay. .FRIDAY NIGHT...Southeast winds 15 to 20 knots. Gusts to 30 knots in the evening. Choppy on the bay. .SATURDAY...South winds 15 to 20 knots. Choppy on the bay. A slight chance of showers and thunderstorms in the afternoon. .SATURDAY NIGHT...South winds 10 to 15 knots, becoming east toward daybreak. A moderate chop on the bay. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. .SUNDAY...North winds 10 to 15 knots, becoming 15 to 20 knots in the afternoon. A moderate chop on the bay, increasing to choppy in the afternoon. A chance of showers. A slight chance of thunderstorms in the afternoon. .SUNDAY NIGHT...North winds around 15 knots, becoming north early in the morning. A moderate chop on the bay. A chance of showers. Winds and waves higher in and near thunderstorms late tonight and Wednesday and again Saturday night and early Sunday. $$ GMZ150-155-260745- Gulf waters from Port Mansfield to the Rio Grande out 20 nm- Gulf waters from Baffin Bay to Port Mansfield out 20 nm- 106 PM CST Tue Nov 25 2025 ...Small Craft Advisory Likely Needed Wednesday... .REST OF THIS AFTERNOON AND EVENING...East winds 5 to 10 knots. Seas 2 to 4 feet. Wave Detail: East 3 feet at 5 seconds. .TONIGHT...East winds around 5 knots, increasing to 5 to 10 knots this evening, then increasing to 10 to 15 knots after midnight, becoming northeast 15 to 20 knots early this morning. Seas 2 to 4 feet. Wave Detail: East 3 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms toward midnight. Showers likely with a chance of thunderstorms after midnight. .WEDNESDAY...Northeast winds 20 to 25 knots. Seas building to 5 to 8 feet, occasionally to 10 feet. Wave Detail: Northeast 7 feet at 5 seconds. A chance of showers and thunderstorms early in the morning, then a slight chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7 feet subsiding to 4 to 6 feet, occasionally to 9 feet. Wave Detail: Northeast 6 feet at 7 seconds. .THURSDAY...Northeast winds 10 to 15 knots. Seas subsiding to 3 to 4 feet. Wave Detail: Northeast 4 feet at 7 seconds. .THURSDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave Detail: East 5 feet at 7 seconds. .FRIDAY...Southeast winds 15 to 20 knots. Seas 4 to 5 feet, building to 5 to 7 feet, occasionally to 9 feet in the afternoon. Wave Detail: East 5 feet at 7 seconds, becoming east 6 feet at 7 seconds. .FRIDAY NIGHT...Southeast winds 20 to 25 knots. Seas 6 to 8 feet, occasionally to 10 feet. A slight chance of showers. .SATURDAY...South winds 15 to 20 knots. Seas 6 to 8 feet, occasionally to 10 feet. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. .SATURDAY NIGHT...South winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers with a slight chance of thunderstorms. .SUNDAY...Northeast winds 15 to 20 knots increasing to 20 to 25 knots and gusty. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers. A slight chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers. A slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms late tonight and Wednesday and again Saturday through Sunday. $$ GMZ170-175-260745- 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- 106 PM CST Tue Nov 25 2025 .REST OF THIS AFTERNOON AND EVENING...East winds 5 to 10 knots. Seas 2 to 4 feet. Wave Detail: East 3 feet at 5 seconds. .TONIGHT...East winds 5 to 10 knots until after midnight, then becoming northeast 15 to 20 knots and gusty toward daybreak. Seas 2 to 4 feet building to 4 to 6 feet north of Port Mansfield late. Wave Detail: East 3 feet at 5 seconds. A slight chance of showers and thunderstorms toward midnight. Showers likely with a chance of thunderstorms after midnight. .WEDNESDAY...Northeast winds 20 to 25 knots with gusts up to 30 knots. Seas 5 to 7 feet, occasionally to 9 feet, building to 6 to 8 feet, occasionally up to 11 feet. Wave Detail: Northeast 7 feet at 6 seconds. A chance of showers and thunderstorms early in the morning, then a slight chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Northeast winds diminishing to 15 to 20 knots. Seas 5 to 8 feet, occasionally to 10 feet, subsiding to 4 to 5 feet after midnight. Wave Detail: Northeast 6 feet at 7 seconds, becoming northeast 5 feet at 7 seconds. .THURSDAY...Northeast winds 10 to 15 knots. Seas 4 to 5 feet. Wave Detail: Northeast 5 feet at 7 seconds. .THURSDAY NIGHT...East winds around 15 knots. Seas 4 to 5 feet. Wave Detail: East 5 feet at 7 seconds. .FRIDAY...East winds 15 to 20 knots. Seas building to 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 6 feet at 7 seconds. .FRIDAY NIGHT...Southeast winds increasing to 20 to 25 knots. Seas building to 6 to 9 feet, occasionally to 11 feet. A slight chance of showers. .SATURDAY...South winds diminishing to 15 to 20 knots. Seas 7 to 9 feet, occasionally to 11 feet. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. .SATURDAY NIGHT...South winds 15 to 20 knots, becoming southeast. Seas 6 to 8 feet, occasionally to 10 feet. A slight chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...Northeast winds 15 to 20 knots increasing to north 20 to 25 knots and gusty. Seas 6 to 8 feet, occasionally to 10 feet. Showers likely in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. .SUNDAY NIGHT...North winds 20 knots and gusty. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers in the evening, then showers likely with a slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms late tonight and Wednesday and again Saturday night through Sunday evening. $$ 52/BSG