National Weather Service Marine Forecast FZUS54 KBRO

FZUS54 KBRO 131843
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1243 PM CST Tue Jan 13 2026

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.

GMZ100-140715
1243 PM CST Tue Jan 13 2026

SYNOPSIS
Light northerly winds and slight seas continue into Wednesday along with a low (15-20%) chance of patchy light rain through tonight. A Small Craft Advisory goes into effect Wednesday evening, through Thursday afternoon, as a cold front arrives, bringing strong northerly winds and moderate seas. Conditions improve throughout Thursday night.

---

GMZ130-132-135-140715
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
1243 PM CST Tue Jan 13 2026

SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON

REST OF TODAY
North winds 5 to 10 knots. Light chop on the bay.

TONIGHT
Northeast winds around 5 knots, becoming west after midnight. Smooth on the bay. A slight chance of showers in the evening.

WEDNESDAY
West winds 5 to 10 knots, becoming northwest early in the afternoon, then becoming north late in the afternoon. Light chop on the bay, increasing to a moderate chop late in the afternoon.

WEDNESDAY NIGHT
North winds 10 to 15 knots, increasing to 15 to 20 knots in the late evening and overnight. A moderate chop on the bay, increasing to choppy in the late evening and overnight.

THURSDAY
North winds 10 to 15 knots, becoming northeast 5 to 10 knots late in the afternoon. A moderate chop on the bay, diminishing to light chop late in the afternoon.

THURSDAY NIGHT
East winds around 5 knots, becoming south after midnight. Smooth on the bay, increasing to light chop after midnight.

FRIDAY
South winds 5 to 10 knots, becoming southeast late in the afternoon. Light chop on the bay.

FRIDAY NIGHT
Southeast winds 5 to 10 knots, becoming northeast early in the morning. Light chop on the bay.

SATURDAY
Northeast winds 10 to 15 knots. A moderate chop on the bay.

SATURDAY NIGHT
Northeast winds 5 to 10 knots. Light chop on the bay.

---

GMZ150-155-140715
Gulf waters from Port Mansfield to the Rio Grande out 20 nm
Gulf waters from Baffin Bay to Port Mansfield out 20 nm
1243 PM CST Tue Jan 13 2026

SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON

REST OF TODAY
North winds around 5 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 7 seconds.

TONIGHT
Northeast winds around 5 knots, becoming west after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at 7 seconds. A slight chance of showers in the evening.

WEDNESDAY
West winds 5 to 10 knots, becoming north 10 to 15 knots late in the afternoon. Seas 2 to 3 feet. Wave Detail: Northwest 2 feet at 3 seconds and east 2 feet at 7 seconds.

WEDNESDAY NIGHT
North winds 15 to 20 knots, increasing to 20 to 25 knots with gusts up to 30 knots in the late evening and overnight. Seas 3 to 5 feet, building to 6 to 8 feet, occasionally to 10 feet after midnight. Wave Detail: Northeast 5 feet at 7 seconds and north 3 feet at 4 seconds, becoming north 7 feet at 7 seconds.

THURSDAY
North winds 15 to 20 knots, becoming northeast 5 to 10 knots. Seas 6 to 8 feet, occasionally to 10 feet, subsiding to 4 to 6 feet, occasionally to 8 feet in the afternoon. Wave Detail: North 6 feet at 6 seconds, becoming north 5 feet at 6 seconds.

THURSDAY NIGHT
Northeast winds 5 to 10 knots, becoming south after midnight. Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 7 seconds.

FRIDAY
South winds 5 to 10 knots. Seas 2 to 3 feet.

FRIDAY NIGHT
Southeast winds 5 to 10 knots, becoming northeast early in the morning. Seas 2 to 3 feet.

SATURDAY
Northeast winds 10 to 15 knots. Seas 2 to 3 feet.

SATURDAY NIGHT
Northeast winds around 10 knots. Seas 2 to 3 feet.

---

GMZ170-175-140715
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
1243 PM CST Tue Jan 13 2026

SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON

REST OF TODAY
Northeast winds around 5 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 7 seconds and northwest 1 foot at 3 seconds.

TONIGHT
Northeast winds around 5 knots, becoming west after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at 7 seconds and northwest 1 foot at 4 seconds. A slight chance of showers in the evening.

WEDNESDAY
Northwest winds 10 to 15 knots, becoming around 15 knots late in the afternoon. Seas 2 to 4 feet. Wave Detail: Northwest 3 feet at 4 seconds and east 2 feet at 7 seconds.

WEDNESDAY NIGHT
North winds 15 to 20 knots, increasing to 20 to 25 knots with gusts up to 30 knots in the late evening and overnight. Seas 4 to 6 feet, occasionally to 8 feet, building to 6 to 8 feet, occasionally to 10 feet after midnight. Wave Detail: North 6 feet at 6 seconds and east 1 foot at 6 seconds, becoming north 8 feet at 7 seconds.

THURSDAY
North winds 20 to 25 knots with gusts up to 30 knots, diminishing to 10 to 15 knots. Seas 6 to 8 feet, occasionally to 10 feet, subsiding to 4 to 6 feet, occasionally to 8 feet in the afternoon. Wave Detail: North 8 feet at 7 seconds, becoming north 6 feet at 7 seconds.

THURSDAY NIGHT
Northeast winds 5 to 10 knots, becoming south after midnight. Seas 2 to 4 feet. Wave Detail: Northeast 4 feet at 7 seconds.

FRIDAY
South winds 5 to 10 knots. Seas 2 to 3 feet.

FRIDAY NIGHT
Southeast winds 5 to 10 knots, becoming northeast early in the morning. Seas 2 to 3 feet.

SATURDAY
Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers in the morning.

SATURDAY NIGHT
Northeast winds around 10 knots. Seas 2 to 3 feet.