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Special Features

Atlantic Gale Warning: A cold front stretches from well offshore the United States Mid-Atlantic region through 31N76W to near Cape Canaveral, Florida. The cold front will move slowly SE and reach from just N of Bermuda to near Palm Beach, FL by Wed morning. Low pressure is forecast to form along the front in the vicinity of the NW Bahamas on Tue, then move NE along the boundary and out of the basin toward Bermuda by Thu. Strong high pressure building N of the front will produce strong to near gale- force NE winds by early Tue, then increase to gale-force midday Tue through at least Wed night as the low pressure moves along the front. Very rough seas in excess of 15 ft are likely in the area of gales, and will linger N of the front through late Thu. The front is expected to stall from near Bermuda to the Straits of Florida by Thu night and gradually weaken into the weekend, with marine conditions to slowly improve.

Gulf of America Gale Warning: A stationary front extends from N-central Florida along 28.5N to 1013 mb low pres centered near 25N93W, then continues southward as a cold front to the central Bay of Campeche to near Coatzacoalcos. Strong to near gale-force winds will prevail N of the front into tonight, with gale- force winds near Veracruz through this evening. Rough to very rough seas will accompany these winds.

Please read the latest High Seas and Offshore Waters Forecasts issued by the National Hurricane Center at website: https://www.nhc.noaa.gov/text/MIAHSFAT2.shtml and https://www.nhc.noaa.gov/marine/offshores.php for more information on both Gale Warnings.

Monsoon Trough/ITCZ

The monsoon trough enters the Atlantic along the coast of Guinea near Conakry, then reaches westward to 09N19W. Farther south, the ITCZ extends west-southwestward from 02N15W to near the Amazon River Delta area. Scattered moderate convection is noted from 01N to 06N between 07N and 13W.

Gulf Of America

Please refer to the Special Features above for details on a Gale Warning in the SW Gulf of Mexico near Veracruz, Mexico.

Otherwise, scattered showers and isolated thunderstorms are occurring from near and N of the stationary front across the waters N of 24N and E of 92W per the latest infrared satellite imagery. Scattered showers are found near and west of the cold across the W-central and SW Gulf, including the western Bay of Campeche. Fresh to strong NW to NE winds with seas of 6-12 ft exist behind the stationary and cold front. In addition, winds near Veracruz, Mexico are peaking at gale-force. S and E of the fronts, gentle to locally moderate NE to E winds with 2-5 ft seas prevail.

For the forecast, strong to near gale-force winds will prevail N of the front into tonight, with gale-force winds near Veracruz through this evening. The front will reach from near Sarasota, Florida to the eastern Bay of Campeche by midday Tue, then move S and across the Straits of Florida Wed through Thu, where it will dissipate. The low pressure will shift E-NE along the front Tue through Wed night to produce scattered thunderstorms with locally gusty winds, and also produce strong NE winds across much of the NE basin. Conditions will begin to improve Fri through Sat as high pressure over the NE U.S builds southwestward across the northern Gulf.

Caribbean Sea

A fair and modest trade-wind regime continues across the entire Caribbean Sea. Moderate to fresh E-SE trades with seas of 5-7 ft are present in the central and eastern basin, locally to 8 ft near Atlantic Passages. Gentle to moderate NNE to ENE winds and 2-5 ft seas prevail for the rest of the Caribbean Sea. No significant convection is noted over the offshore waters.

For the forecast, the pressure gradient between high pressure across the N-central Atlantic and low pressure over South America will continue to support fresh to locally strong E to SE winds over the eastern half of the basin, S of 16N, through early Thu, and gentle to moderate NE winds across the western portion. By Thu, strong high pressure across the western Atlantic will build southward toward the region to bring a return to more typical fresh to strong winds across south-central portions offshore of Colombia and NW Venezuela.

Atlantic Ocean

Please refer to the Special Features above for details on a developing Gale Warning in the SW N Atlantic.

A cold front is moving slowly SE across the northwestern zones this afternoon, extending from 31N76W to near Daytona Beach, FL, and Scattered showers and isolated thunderstorms are noted behind this front. Fresh to strong NE winds and building seas of 6-8 ft are noted behind the front. Coupling with convergent southeasterly trade winds, scattered moderate convection is found from 20N to 25N between 58W and 69W. In the east Atlantic, another cold front reaches southwestward from northwest of Madeira across 31N23W to near 28N42W. Scattered showers are seen up to 650 nm along either side of the front. Fresh to strong N-NE winds and 8-14 ft seas in northerly swells are found behind the front. Mainly moderate to fresh trades dominate the remainder of the waters S of 29N and E of 68W, with gentle to moderate return flow W of 68W and E of the front off the United States. Seas are 5-7 ft in mainly N-NE swells S of the eastern Atlantic front and E of 35W, and 6-9 ft elsewhere/westward.

For the forecast west of 55W, the cold front in the SW N Atlantic will move slowly SE and reach from just N of Bermuda to near Palm Beach, FL by Wed morning. Low pressure is forecast to form along the front in the vicinity of the NW Bahamas on Tue, then move NE along the boundary and out of the basin toward Bermuda by Thu. Strong high pressure building N of the front will produce strong to near gale- force NE winds by early Tue, then increase to gale- force midday Tue through at least Wed night as the low pressure moves along the front. Very rough seas in excess of 15 ft are likely in the area of gales, and will linger N of the front through late Thu. The front is expected to stall from near Bermuda to the Straits of Florida by Thu night and gradually weaken into the weekend, with marine conditions to slowly improve.

Posted 0 minutes ago by NHC Forecaster Lewitsky