000 AXNT20 KNHC 260554 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 154 AM EDT Sun Jul 26 2020 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 32N. The following information is based on satellite imagery, weather observations, radar and meteorological analysis. Based on 0000 UTC surface analysis and satellite imagery through 0515 UTC. ...SPECIAL FEATURES... Hurricane Hanna is centered near 26.6N 98.0W at 26/0300 UTC or 30 nm W of Port Mansfield Texas moving WSW at 8 kt. Estimated minimum central pressure is 979 mb. Maximum sustained wind speed is 65 kt with gusts to 80 kt. Numerous strong convection is S of the center from 23N-26N between 96W-99W. Scattered moderate to isolated strong convection is elsewhere from 23N-28N between 95W-100W. Doppler radar shows an eye diameter of about 25 nm. Hanna should then weaken rapidly inland into a tropical storm tonight and tropical depression Sun over Deep South Texas and NE Mexico. Please read the latest NHC Public Advisory at https://www.nhc.noaa.gov/text/MIATCPAT3.shtml and Forecast/Advisory at https://www.nhc.noaa.gov/text/ MIATCMAT3.shtml for more details. A tropical wave along 32W is producing a large area of cloudiness and disorganized showers and thunderstorms. Environmental conditions appear conducive for development, and a tropical depression is likely to form early next week while the wave moves westward at around 15 mph across the tropical Atlantic. There is a medium chance for tropical cyclone formation within the next 48 hours. ...TROPICAL WAVES... A strong Atlantic Ocean tropical wave is several hundred miles W of the Cabo Verde Islands, along 32W from 03N-20N, moving W at 10-15 kt. Isolated moderate convection is within 180 nm of the wave axis. An Atlantic Ocean tropical wave is along 51W from 21N southward, moving W at 15 kt. Scattered showers are within 180 nm of the wave axis. A Caribbean Sea tropical wave is along 81W/82W from 22N southward moving west at 15 kt. Isolated moderate convection is within 180 nm of the wave axis. ...MONSOON TROUGH/ITCZ... The monsoon trough passes through the coastal sections of Senegal near 14N17W to 14N24W to 10N40W to 09N48W. The ITCZ is W of a tropical wave from 09N53W to the coast of Guyana near 07N58W. Aside from convection mentioned in the Tropical Waves section, scattered moderate convection is from 07N-12N between 10W-22W. Scattered moderate to isolated strong convection is from 06N-11N. GULF OF MEXICO... See Special Features section above for details on Hurricane Hanna. Outside of Hanna immediate impacts, radar imagery shows scattered showers along the coast of Louisiana N of 27N. Similar showers are over the E Gulf E OF 85W. Scattered moderate convection is over S Florida and the Straits of Florida. Generally, moderate to fresh SE winds are occurring across the Gulf, and with high pressure centered east of the Gulf through much of next week. Pulses of strong SE winds are expected at least early next week moving off the Yucatan Peninsula and then crossing portions of the western Gulf. Seas will average 4 to 6 ft. Hanna will weaken to a tropical storm near 26.2N 99.1W Sun morning, move inland and weaken to a tropical depression near 25.4N 100.6W Sun evening, become a remnant low and move to 24.6N 101.9W Mon morning, and dissipate Mon evening. The pressure gradient between Hanna and a ridge across the remainder of the Gulf waters will support fresh to strong SE winds over the western Gulf through Mon. CARIBBEAN SEA... A tropical wave is over the W Caribbean. See Above. A 1010 mb low, the remnant of Gonzalo, is centered N of Venezuela near 12N64W. Scattered showers are within 120 nm of the low. Elsewhere, scattered moderate convection is over Haiti and E Cuba. Scattered moderate to isolated strong convection is inland over Panama and N Colombia. Fresh trades are occurring across most of the basin, with some strong winds over the south- central Caribbean. Expect fresh to strong winds across the south-central Caribbean through the forecast period. Fresh to strong SE winds are also expected in the Gulf of Honduras Sun night through Mon night. A strong tropical wave will approach the Lesser Antilles by the middle of the week increasing winds/seas across the eastern Caribbean as it moves west. ATLANTIC OCEAN... A surface trough coupled with an upper-level low pressure centered over the N Bahamas is producing isolated moderate convection. Otherwise, a broad ridge of high pressure, anticyclonic wind flow and mostly fair weather span the Atlantic Ocean, north of 24N and east of 65W. Over the W Atlantic, a ridge will dominate the forecast area, supporting fresh to occasionally strong winds near Hispaniola and the Windward Passage at night through Sun. Expect increasing winds and seas E of 65W on Wed as a strong tropical wave approaches the Lesser Antilles. $$ Formosa