Special Features

Gale Warning East of 35W: Meteo-France has issued a GALE WARNING for the Canarias Marine Zone at least through 28/1200 UTC, and for Agadir and Tarfaya marine zones from 27/18Z to 28/12Z.

For more information, please see the latest HIGH SEAS FORECAST issued by Meteo-France at website: https: //wwmiws. wmo. int/index. php/metareas/affiches/2

Central and Eastern Atlantic Significant Swell Event: A robust high pressure system near the Azores is maintaining fresh to near gale-force trade winds across the eastern Atlantic. Wind waves generated by these winds along with residual N swell will continue to create 12 to 14 ft seas from 17N to 28N between 17W and 35W. These very rough seas are expected to gradually progress southwestward into the tropical central Atlantic over the next few days.

Please read the latest NWS 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

A monsoon trough enters the Atlantic along the coast of Guinea north of Conakry, then extends southwestward to 04N20W. An ITCZ continues from 04N20W across 00N30W to near Fortaleza, Brazil. Scattered moderate to isolated strong convection is observed from 00N to 06N and east of 27W.

Gulf Of America

A surface trough extends southward from a 1012 mb low near the southern Louisiana/Mississippi border to south of New Orleans. Scattered moderate convection seen at the east-central Gulf. Otherwise, a surface ridge maintains its influence over the rest of the Gulf. Moderate S winds and seas of 3 to 5 ft dominate the south-central and eastern Bay of Campeche. Gentle to moderate S to SW winds and 3 to 5 ft seas in moderate southerly swell previal for the rest of the Gulf.

For the forecast, moderate southerly return flow in the Gulf will gradually diminish this morning ahead of a cold front approaching the northwestern Gulf. This front will reach the basin this morning, slowly sink southward across the northern half of the Gulf through Sat night and gradually dissipate. High pressure north of the Gulf will build back across the basin Sun into early next week, supporting moderate to fresh winds.

Caribbean Sea

A tight pressure gradient sustains fresh to strong easterly winds and 8 to 10 ft seas at the south-central basin. Moderate to fresh easterly breezes and 6 to 8 ft are noted at the north-central and eastern basin. Gentle to moderate NE to ESE winds with 3 to 6 ft seas prevail elsewhere in the Caribbean Sea.

For the forecast, a road central Atlantic high pressure extends westward across the Gulf of America. Mainly moderate southerly return flow across the west and central portions of the Gulf will gradually diminish this morning ahead of a cold front that is approaching the NW Gulf. This front will reach the basin this morning, slowly move southward across the northern half of the Gulf through Sat night and gradually dissipate. High pressure north of the area will build back across the basin Sun into early next week supporting moderate to fresh winds.

Atlantic Ocean

Please read the Special Features section for A Gale Warning is at the northwest find.

A robust 1037 mb Azores high pressure system ssythemthe Azores extends to the Bahamas. Moderate to fresh southerly winds and moderate seas are found west of 75W. The tight pressure gradient between the aforementioned ridge and lower pressures in the deep tropics and western Africa result in fresh to near gale-force easterly winds and rough seas over much of the central and eastern Atlantic. Elsewhere, moderate or weaker winds and moderate seas are prevalent.

For the forecast west of 55W, high pressure over the central Atlantic continues to maintain control of the general weather pattern while rough seas prevail over the SE waters. A weak front will emerge off the southeastern U. S. coast early Sat, and move slowly southeastward and weaken across the waters W of 65W through Sun night before dissipating. Another cold front is expected to enter the northern waters early next week and gradually shift southeastward and weaken. Fresh to strong easterly winds and rough seas are forecast behind the front Mon night through Tue night north of 27N. High pressure will build by the middle of next week resulting in moderate to fresh winds and rough seas over much of the basin.

Chan Posted about 2 hours ago by NHC Forecaster