000 AXNT20 KNHC 152108 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0005 UTC Wed Oct 16 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 1800 UTC surface analysis and satellite imagery through 2100 UTC. ...TROPICAL WAVES... The axis of a central Atlantic tropical wave is near 43W/44W from 21N southward through a 1010 mb low (Invest AL94) near 16N43.55W, and moving westward 10 kt. Scattered moderate convection is noted from 15N to 19N between 42W and 48W. This system is forecast to move generally westward, and environmental conditions appear marginally conducive for gradual development by the middle to latter part of this week. A tropical depression could form as the system begins moving west-northwestward and approaches or moves near the Leeward Islands late this week. There is a LOW chance of tropical cyclone development through the next 48 hours, and a MEDIUM chance for tropical cyclone development in the next 7 days. Please refer to the latest TROPICAL WEATHER OUTLOOK issued by the National Hurricane Center at www.hurricanes.gov for more details. The axis of a central Caribbean tropical wave is near 77W S of 20N, and moving westward at 10 to 15 kt. Scattered to numerous moderate to strong convection is S of 17N between 72W and 81W. ...MONSOON TROUGH/ITCZ... The monsoon trough enters the Atlantic off the coast of Africa near 14N17W to 06N26W to 16N43.5W to 09N51W. Scattered moderate and isolated strong convection is noted within 120 nm of the monsoon trough between 19W and 35W. ...GULF OF MEXICO... A dissipating stationary front extends across the NE Gulf. High pressure dominates the remainder of the Gulf. Light to gentle winds, and seas of 1-3 ft, prevail across the Gulf waters. For the forecast, gentle to moderate NNE winds will dominate much of the basin through ahead of a cold front forecast to move into the northern Gulf tonight. The front, followed by fresh to strong N to NE winds and rough seas, will reach from Tampa Bay to 26N90W to NE Mexico near 27N97W Wed morning and from the Florida Straits to the Yucatan Peninsula Wed night. The front will then stall between the Yucatan Channel and the far NW Caribbean through Fri before dissipating Sat. Fresh to strong winds will start to diminish late Sun. ...CARIBBEAN SEA... Moderate to fresh winds, and seas of 4-6 ft, prevail in the central Caribbean. Gentle to moderate winds dominate the remainder of the Caribbean waters. Seas of 4-6 ft are over the eastern Caribbean with seas of 2-3 ft over the western Caribbean. For the forecast, moderate to fresh winds over the eastern and central Caribbean will diminish to gentle to moderate speeds on Wed and then prevail through Sat night. A cold front will enter the NW Caribbean Wed evening followed by moderate to fresh NNE winds. The front will then stall there through Fri before dissipating Sat. Rough seas are expected during this period over the Yucatan Channel. Fresh NE winds associated with the portion of the front N of the area will also funnel through the Windward Passage Fri evening through Sat night aided by an approaching area of low pressure, Invest AL94, approaching the Turks and Caicos from the east. ...ATLANTIC OCEAN... A cold front extends from 31N24W to 25N50W. Moderate to fresh winds, and seas of 5-8 ft, prevail N of the front. Fresh to strong winds, and seas of 7-9 ft, are noted N of Invest AL94. Light to gentle winds prevail over the remainder of the discussion waters. Seas are in the 5-7 ft range E of 60W, and 3-5 ft W of 60W. For the forecast W of 55W, moderate SW to W winds associated will prevail over the offshore waters N of 30N and W of 60W through this evening. A second and stronger cold front will come off the Georgia coast tonight followed by fresh to strong northerly winds and rough seas that will affect the Florida and the Bahamas offshore waters through Sat night. Invest AL94 is forecast to move to the offshore waters N of Puerto Rico by Fri evening and N of the Dominican Rep on Sat before merging with the remnants of the front Sat night. Conditions will start improving across the offshore waters W of 65W late on Sun. $$ AL