000 AXNT20 KNHC 111108 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1205 UTC Tue Jun 11 2024 Tropical Weather Discussion for North America, Central America Gulf of Mexico, 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 0600 UTC surface analysis and satellite imagery through 1050 UTC. ...SPECIAL FEATURES... Heavy Rainfall in the NW Caribbean and SE Gulf of Mexico: Abundant tropical moisture surging northward across the western Caribbean, combined with middle to upper-level diffluent flow continues to support the development of showers and thunderstorms in the far NW Caribbean Sea (N of 20N west of 80W) and the southeastern Gulf of Mexico. Dangerous lightning, strong gusty winds, rough seas and low visibility are likely ongoing within this convective activity over these areas. This convection will amplify as it shifts across the SE Gulf of Mexico and the Florida Straits through Fri. Mariners transiting these regions should exercise caution. Please refer to bulletins and forecasts from your local weather forecast offices for detailed information. ...TROPICAL WAVES... A tropical wave in the eastern Atlantic extends from 02N to 17N with axis near 24W, moving westward at 5-10 kt. There is no convection associated with this wave. A tropical wave is moving across the E Caribbean S of 13N with axis near 62W, moving westward at 10-15 kt. Scattered showers and isolated thunderstorms are ongoing over the SE Caribbean S of 16N between the Lesser Antilles and 68W. A tropical wave is in the south-central Caribbean Sea along 74W, south of 14N, and moving westward at 10-15 kt. Numerous moderate to strong convection is S of 13N between 73W and 79W. ...MONSOON TROUGH/ITCZ... The monsoon trough reaches the Atlantic through the coast of Guinea-Bissau near 12N16W and continues southwestward to 06N28W. The ITCZ extends from 06N28W to 06N43W to 09N60W. Numerous moderate to strong convection is from 01N to 08N between 27W and 36W. Scattered moderate convection is ongoing from 04N to 10N between 10W and 20W, and from 01N to 10N W of 37W. ...GULF OF MEXICO... Please read the Special Features section for information about heavy rainfall in the SE Gulf of Mexico. Light concentration of smoke continue over the western Gulf, including the Bay of Campeche, due to ongoing agricultural fires, creating hazy conditions. Moisture inflow from the Caribbean along with upper-level diffluence continue to support scattered heavy showers and tstms over the SE Gulf. Aside the shower activity, moderate to fresh SW winds are ongoing over that region along with moderate seas. Light to gentle variable winds and slight seas are ongoing elsewhere. For the forecast, a weak pressure gradient will support mainly gentle to moderate winds most of the forecast period. Moderate to fresh S to SW winds will prevail over the SE basin being enhanced by an amplifying area of convection moving to the region from the NW Caribbean. These enhanced winds will continue through Thu just SE of a weak surface trough. Otherwise, hazy conditions due to agricultural fires over Central America and Mexico will continue for at least the next couple of days, reducing visibility to around 3 nm at times, mainly over the far western Gulf. ...CARIBBEAN SEA... Please read the Special Features section for information about heavy rainfall in the NW Caribbean. The pressure gradient between the Bermuda High and associated ridge and lower pressures in the deep tropics results in fresh to strong trade winds over the central basin and moderate to fresh E to SE winds elsewhere. Seas 7-8 ft over the central Caribbean and 4 to 6 ft elsewhere. For the forecast, scattered showers and thunderstorms are expected to continue across portions of the NW Caribbean N of 20N and W of 80W through the end of the week. Dangerous lightning, gusty winds and rough seas are likely over this region the next several days. Otherwise, moderate to fresh E to SE winds will prevail across the eastern, central and NW Caribbean through the forecast period, pulsing to strong speeds over the central basin through Thu evening. ...ATLANTIC OCEAN... Diffluent flow aloft and plenty of tropical moisture result in the continuation of scattered heavy showers and tstms over the SE Florida Seaboard as well as N of 27N between 70W and 80W. The pressure gradient between the Bermuda subtropical ridge and a stationary front off the SE United States support moderate to locally fresh SW winds north of 27N and west of 65W. Seas in these waters are 3-5 ft. The remainder subtropical Atlantic is under the influence of the Azores high, which is supporting mainly fresh NE winds between the coast of W Africa and the Cape Verde Islands. Moderate to fresh trades are ongoing in the tropical central Atlantic waters. For the forecast W of 55W, surface high pressure centered SE of Bermuda and associated ridging will prevail across the region through Thu, then gradually weaken and shift slightly eastward through the end of the week. Moderate to fresh S to SW winds over the NE Florida offshore waters will reach fresh to strong speeds tonight through Wed. A low pressure will develop off the coast of NE Florida Wed and lift N of the area over the weekend. This low will continue to support moderate to fresh winds over the NW offshores through the weekend. Elsewhere, gentle to moderate winds are expected. $$ Ramos