Special Features

Central Atlantic Significant Swell: A cold front extends from 31N46W southwestward to 22N68W. Large NW swell behind the front is producing 12 to 16 ft seas north of 25N between 47W and 65W. These very rough seas of 12 ft and higher are expected to gradually subside today. A new pulse of N-NW swell is expected to move into the waters north of 28N late tonight through Sat night to produce another area of seas 12 ft and greater.

Please read the latest High Seas Forecast issued by the National Hurricane Center at website: https: //www. nhc. noaa. gov/text/MIAHSFAT2. shtml for more information.

Monsoon Trough Itcz

The monsoon trough enters the Atlantic near 11N15W to 07N19W. The ITCZ continues from 07N19W to 04N24W to 03N50W. Scattered moderate convection is noted from 00N to 06N between 12W and 23W, and from 01N to 08N between 32W and 50W.

Gulf Of America

A surface trough is over the SW Gulf, with moderate convection in the vicinity of the trough. The remainder of the Gulf is dominated by high pressure, anchored by a 1022 mb high centered over the NE Gulf. The pressure gradient between these features is supporting moderate winds over the SW Gulf. Light to gentle winds are over the NE Gulf. Gentle to locally moderate winds are elsewhere across the Gulf waters. Seas are in the 1-2 ft range over the NE Gulf, and 2-4 ft elsewhere.

For the forecast, a weak pressure gradient will support gentle to moderate E to SE winds and slight to moderate seas across the Gulf into Sun. The next cold front is expected to enter the northwest Gulf on Mon, followed by fresh to strong northerly winds and rough seas, except gale conditions will be possible in the far west central and southwest Gulf by Mon night.

Caribbean Sea

The pressure gradient between high pressure north of the area and the Colombian low is supporting fresh to strong winds over the central Caribbean, where seas are in the 6-8 ft range. Moderate winds, and seas of 4-6 ft prevail elsewhere.

For the forecast, the pressure gradient between strong high pressure across the western Atlantic and the Colombian low will support fresh to strong winds in the central Caribbean through Tue. Long period northerly swell moving into the northeastern passages will gradually subside today.

Atlantic Ocean

See the Special Features at the beginning about an ongoing significant swell.

A cold front extends from near 31N46W southwestward to 22N68W. Scattered moderate and isolated strong convection is in the vicinity of the front N of 25N. Moderate to fresh winds are found N of 26N between 33W and 40W, where seas are in the 7-9 ft range. Elsewhere E of 45W, winds are moderate or weaker with seas in the 5-7 ft range. Light to gentle winds are over the waters W of 45W. Aside from the very rough seas discussed above, rough seas greater than 8 ft cover the waters N of a line from 26N72W to 23N61W to 30N46W. Elsewhere, seas of 4-6 ft are noted.

For the forecast west of 55W, the front will stall and dissipate along 22N through early today. Strong NW winds and large swell follows the front east of 65W. Another cold front will move over the waters between northeast Florida and Bermuda today before moving east of the area Sat. It will be followed by additional reinforcing swell east of 70W. Another front will move into the waters between northeast Florida and Bermuda late Sat into Sun, and move east of the region through Mon. Yet another front will move off the northeast Florida coast Mon night, and will reach from Bermuda to Jupiter Inlet, Florida by late Tue.

Posted about 3 hours ago by NHC Forecaster AL