


Tropical Weather Discussion
Issued by NWS
Issued by NWS
924 AXNT20 KNHC 162304 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0015 UTC Mon Jun 16 2025 Tropical Weather Discussion for North America, Central America Gulf of America, Caribbean Sea, northern sections of South America, and Atlantic Ocean to the African coast from the Equator to 31N. The following information is based on satellite imagery, weather observations, radar and meteorological analysis. Based on 1800 UTC surface analysis and satellite imagery through 2230 UTC. ...TROPICAL WAVES... A tropical wave has been introduce to this map, analyzed along 18W from 02N to 15N, moving W at 10 kt. Scattered moderate convection is noted from 05N to 12N between 17W-21W. A tropical wave is in the central Atlantic extending from 02N to 16N with axis near 40W, moving W at 10-15 kt. Scattered moderate convection is noted along the southern portion of the wave. A tropical wave is in the central Atlantic extending from 02N to 15N with axis near 51W, moving W at 10-15 kt. Scattered moderate convection is noted along the southern portion of the wave. A tropical wave is in the W Caribbean S of 19N with axis near 82W, moving W at 10-15 kt. Numerous moderate to strong convection is ahead and along the wave axis extending over Nicaragua, Costa Rica and Panama offshore waters. ...MONSOON TROUGH/ITCZ... The monsoon trough enters the Atlantic near 14N17W and continues southwestward to 05N29W. The ITCZ extends from 05N29W to 05N36W and then resumes W of a tropical wave from 04N43W to 03N48W. Scattered moderate convection is within 90 nm on either sides of the boundaries. ...GULF OF AMERICA... A surface ridge continues to extend from the central Atlantic into the Gulf waters, supporting moderate to fresh E-SE winds and moderate seas west of 90W. Elsewhere, moderate or weaker E to SE winds and slight to moderate seas prevail. Otherwise, a surface trough is supporting scattered showers and thunderstorms with gusty winds and rough seas offshore Veracruz and over the Bay of Campeche. Scattered moderate convection is also depicted over the northern Gulf. For the forecast, fresh to strong E to NE winds will pulse each afternoon and evening through the week north of the Yucatan Peninsula and in the eastern Bay of Campeche as a diurnal trough develops and tracks westward across the region. Otherwise, surface ridging extending across most of the basin from the western Atlantic will maintain moderate to fresh S to SE winds and moderate seas over the central and western Gulf through Fri night. Gentle to moderate SE winds and slight seas are forecast to prevail across the eastern half of the basin. ...CARIBBEAN SEA... Please refer to the Tropical Wave section above for information regarding a tropical wave moving across the western Caribbean. The Caribbean is under the influence of a broad subtropical ridge centered by a 1025 mb high near 32N35W. The pressure gradient between the aforementioned ridge and lower pressures over the SW Caribbean results in strong to near gale-force easterly winds in the south-central and portions of the SW Caribbean. Seas in these waters are in the rough category. The strongest winds and seas are noted off NW Colombia. Fresh to strong easterly winds and moderate seas are noted in the Gulf of Honduras. Moderate to fresh trades are elsewhere, except in the lee side of Cuba where winds are gentle to moderate. For the forecast, fresh to near gale force easterly winds and rough seas are forecast across the central and portions of the SW Caribbean through Fri night due to a prevalent Atlantic subtropical ridge extending southward into the northern Caribbean. Fresh to strong trades will pulse at night in the Gulf of Honduras through Tue and then stay strong through Thu while expanding northward as the Bermuda High builds. Rough seas are expected in the Gulf of Honduras and other portions of the NW Caribbean Tue night through Wed night. Gentle to moderate winds and moderate seas are expected elsewhere through Fri night. ...ATLANTIC OCEAN... Please refer to the Tropical Wave section above for information regarding tropical waves moving across the central Atlantic. An extensive subtropical ridge dominates the entire subtropical Atlantic waters, extending from a 1025 mb high pressure near 32N35W. Moderate to fresh easterlies are ongoing across the Great Bahama Bank, and Puerto Rico and Hispaniola offshore waters. The passage of two tropical waves is supporting winds of similar speed between 42W and the Lesser Antilles with moderate to rough seas. Moderate to fresh NE winds and moderate seas are ongoing between the NW coast of Africa and the Cape Verde Islands. Moderate or weaker winds are elsewhere along with slight to moderate seas. Otherwise, scattered showers are over the Dominican Republic offshore waters due to a deep layer trough. For the forecast west of 55W, moderate to fresh easterly winds are forecast south of 25N through Fri night as a broad subtropical Atlantic ridge stays in place. Strong winds will pulse just north of Hispaniola at night into late week as the Bermuda High builds. Moderate to fresh S to SW winds will prevail offshore of NE Florida through Thu associated with a surface trough extending along the eastern United States. Moderate or weaker winds and slight to moderate seas are expected elsewhere through the week. $$ ERA