000 AXNT20 KNHC 230606 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 205 AM EDT Sun Aug 23 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 0530 UTC. ...SPECIAL FEATURES... The center of Tropical Storm LAURA, at 23/0600 UTC, is near 18.6N 70.1W. LAURA is about 25 km to the WSW of Santo Domingo in the Dominican Republic. LAURA is moving WNW, or 285 degrees, 14 knots. The estimated minimum central pressure is 1003 mb. The maximum sustained wind speeds are 45 knots with gusts to 55 knots. Precipitation: scattered to numerous strong is from 15N to 20N between 67W and 74W. The precipitation covers parts of Puerto Rico and much of Hispaniola, and the surrounding coastal waters of each island. 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. The center of Tropical Storm MARCO, at 23/0600 UTC, is near 23.1N 86.6W. MARCO is about 220 km to the NW of the western tip of Cuba. MARCO is moving NNW, or 335 degrees, 11 knots. The estimated minimum central pressure is 994 mb. The maximum sustained wind speeds are 55 knots with gusts to 65 knots. Precipitation in the Gulf of Mexico: scattered to numerous strong is about 130 nm to the north of the Yucatan Channel. Scattered moderate to strong also is within 220 nm to the north of NW Cuba, and within 240 nm to the west of SW Florida. Please read the latest NHC Public Advisory at https://www.nhc.noaa.gov/text/MIATCPAT4.shtml and Forecast/Advisory at https://www.nhc.noaa.gov/text/MIATCMAT4.shtml, for more details. ..TROPICAL WAVES... An Atlantic Ocean tropical wave is along 30W from 21N southward, moving W 10 to 15 knots. Precipitation: any nearby precipitation is related to the monsoon trough. A Caribbean Sea tropical wave is along 69W, from 14N southward, moving W 10 knots. A Caribbean Sea tropical wave is along 77W/78W, from Jamaica southward, moving W 15 knots. The monsoon trough is along 11N73W in NE Colombia near the border with Venezuela, to 12N80W, to 13N85W in Nicaragua, and westward, through Honduras, El Salvador, and Guatemala, into the eastern Pacific Ocean. Precipitation: isolated moderate to locally strong is from 04N to 13N between the 69W tropical wave and 81W. The precipitation covers interior sections of Colombia and Venezuela, parts of the Caribbean Sea, and the coastal waters of Colombia in the eastern Pacific Ocean. Widely scattered moderate to isolated strong is in central Nicaragua. A tropical wave is along 91W from 17N southward, moving westward through Guatemala, 10 to 15 knots. Precipitation: scattered to numerous strong is inland in Guatemala and Mexico, from 15N to 19N between 90W and 90W, in Guatemala and in southern sections of Mexico. Widely scattered to scattered moderate and isolated strong is elsewhere, from 15N to 20N between 87W and 100W. The precipitation covers parts of the SW corner of the Gulf of Mexico, the NW corner of the Caribbean Sea, parts of the eastern Pacific Ocean coastal waters of Mexico, parts of Honduras, Belize, Guatemala, and Mexico. ...MONSOON TROUGH/ITCZ... The monsoon trough passes through the coastal sections of Mauritania near 18N16W, to 18N20W 16N22W 11N24W 11N35W, and 09N50W. Precipitation: scattered moderate to strong is from 08N to 10.5N between 57W and 60W. Isolated moderate to locally strong is elsewhere from 10N southward from 60W eastward. GULF OF MEXICO... A tropical wave is along 91W from 17N southward, moving westward through Guatemala, 10 to 15 knots. Precipitation: scattered to numerous strong is inland in Guatemala and Mexico, from 15N to 19N between 90W and 90W, in Guatemala and in southern sections of Mexico. Widely scattered to scattered moderate and isolated strong is elsewhere, from 15N to 20N between 87W and 100W. The precipitation covers parts of the SW corner of the Gulf of Mexico, the NW corner of the Caribbean Sea, parts of the eastern Pacific Ocean coastal waters of Mexico, parts of Honduras, Belize, Guatemala, and Mexico. Tropical Storm Marco center near 22.8N 86.3W 996 mb at 11 PM EDT is moving NNW at 11 kt. Maximum sustained winds 55 kt gusts 65 kt. Marco will intensify to a hurricane near 24.3N 87.1W Sun morning with maximum sustained winds 65 kt gusts to 80 kt; reach to near 26.3N 87.9W Sun evening with maximum sustained winds 70 kt gusts 85 kt. It will maintain intensity as it reaches to near 28.3N 88.9W Mon morning and move inland to near 30.5N 92.0W Tue morning. Marco will weaken to a tropical depression near 30.9N 93.5W Tue evening and dissipate late Wed. Tropical Storm Laura, currently in Hispaniola, will move across western Cuba Mon and reach the southeastern Gulf of Mexico near 23.4N 83.0W Mon evening with maximum sustained winds 50 kt gusts to 60 kt. Laura will intensify to a hurricane as it reaches near 24.7N 85.8W Tue morning with maximum sustained winds 60 kt gusts 75 kt; to near 26.2N 88.0W Tue evening with maximum sustained winds 75 kt gusts 90 kt and move inland near 29.8N 91.2W Wed evening. Atlantic Ocean high pressure will build westward, into the eastern Gulf of Mexico, in the wake of Laura. CARIBBEAN SEA... A Caribbean Sea tropical wave is along 69W, from 14N southward, moving W 10 knots. A Caribbean Sea tropical wave is along 77W/78W, from Jamaica southward, moving W 15 knots. The monsoon trough is along 11N73W in NE Colombia near the border with Venezuela, to 12N80W, to 13N85W in Nicaragua, and westward, through Honduras, El Salvador, and Guatemala, into the eastern Pacific Ocean. Precipitation: isolated moderate to locally strong is from 04N to 13N between the 69W tropical wave and 81W. The precipitation covers interior sections of Colombia and Venezuela, parts of the Caribbean Sea, and the coastal waters of Colombia in the eastern Pacific Ocean. Widely scattered moderate to isolated strong is in central Nicaragua. Tropical Storm Marco center near 22.8N 86.3W 996 mb at 11 PM EDT is moving NNW at 11 kt. Maximum sustained winds 55 kt gusts 65 kt. Marco will intensify to a hurricane near 24.3N 87.1W Sun morning with maximum sustained winds 65 kt gusts to 80 kt; reach to near 26.3N 87.9W Sun evening with maximum sustained winds 70 kt gusts 85 kt. Tropical Storm Laura center near near 18.5N 69.7W 1003 mb at 11 PM EDT is moving WNW at 18 kt. Maximum sustained winds 45 kt gusts 55 kt. Laura will maintain intensity as it moves inland over the Dominican Republic to near 19.3N 72.3W Sun morning; inland to near 20.6N 76.0W Sun evening; inland to near 22.1N 79.6W Mon morning; then into the extreme southeastern Gulf of Mexico near 23.4N 83.0W Mon evening with maximum sustained winds 50 kt gusts to 60 kt. ATLANTIC OCEAN... An upper level cyclonic circulation center is within 850 nm to 900 nm to the ENE of T.S. Laura. Precipitation: isolated moderate covers the Atlantic Ocean from 12N northward between 44W and 65W. Broad surface anticyclonic wind flow covers the rest of the Atlantic Ocean. A surface ridge extends from Georgia, to 29N56W, beyond 33N41W. Tropical Storm Laura center near near 18.5N 69.7W 1003 mb at 11 PM EDT is moving WNW at 18 kt. Maximum sustained winds 45 kt gusts 55 kt. Laura will maintain intensity as it moves inland over the Dominican Republic to near 19.3N 72.3W Sun morning; inland to near 20.6N 76.0W Sun evening; inland to near 22.1N 79.6W Mon morning; then into the extreme southeastern Gulf of Mexico near 23.4N 83.0W Mon evening with maximum sustained winds 50 kt gusts to 60 kt. Relatively weak high pressure will cover the rest of the area. $$ mt