GMZ001-182045-
Synopsis for the Gulf of America
437 AM EDT Thu Jun 18 2026
.SYNOPSIS...Post-Tropical Storm Arthur has dissipated inland
across SE Texas with the low level remnants expected to accelerate
toward the NE through Fri. Strong thunderstorms occurring well to
the SE of these remnants of Arthur are across SE Louisiana and
the adjacent coastal waters, and will shift NE and inland today.
Atlantic high pressure has begun to build westward across Florida
and into the Gulf basin tonight, and will tighten the pressure
gradient through Thu night to sustain fresh to strong southerly
winds over the western and central Gulf, and moderate to fresh
winds over the eastern Gulf. Expect rough seas N of 27N and
offshore of the Louisiana coast this morning to shift eastward
with these winds through Thu night before diminishing. Winds and
seas will diminish basin-wide late Fri through the weekend as
weak high pressure settles over the eastern Gulf.
$$
GMZ047-182045- SE Gulf of America from 22N to 26N E of 87W including Straits of Florida- 437 AM EDT Thu Jun 18 2026 TODAY SE to S winds 15 to 20 kt. Seas 6 to 8 ft in S to SW swell. TONIGHT SE to S winds 15 to 20 kt. Seas 6 to 8 ft. FRI SE to S winds 10 to 15 kt. Seas 4 to 6 ft. FRI NIGHT E to SE winds 10 to 15 kt. Seas 4 to 6 ft. SAT E to SE winds 10 kt. Seas 3 to 5 ft. SAT NIGHT E winds 10 kt. Seas 2 to 4 ft. SUN S of 24N, SE winds 10 kt. N of 24N, SE winds 10 kt in the morning, becoming variable less than 5 kt. Seas 2 to 4 ft. SUN NIGHT E to SE winds 10 kt. Seas 2 to 4 ft. MON E to SE winds 10 kt. Seas 2 to 4 ft. MON NIGHT E winds 10 to 15 kt. Seas 2 to 4 ft. $$
GMZ047-182045- SE Gulf of America from 22N to 26N E of 87W including Straits of Florida- 437 AM EDT Thu Jun 18 2026 TODAY SE to S winds 15 to 20 kt. Seas 6 to 8 ft in S to SW swell. TONIGHT SE to S winds 15 to 20 kt. Seas 6 to 8 ft. FRI SE to S winds 10 to 15 kt. Seas 4 to 6 ft. FRI NIGHT E to SE winds 10 to 15 kt. Seas 4 to 6 ft. SAT E to SE winds 10 kt. Seas 3 to 5 ft. SAT NIGHT E winds 10 kt. Seas 2 to 4 ft. SUN S of 24N, SE winds 10 kt. N of 24N, SE winds 10 kt in the morning, becoming variable less than 5 kt. Seas 2 to 4 ft. SUN NIGHT E to SE winds 10 kt. Seas 2 to 4 ft. MON E to SE winds 10 kt. Seas 2 to 4 ft. MON NIGHT E winds 10 to 15 kt. Seas 2 to 4 ft. $$