328 AXNT20 KNHC 290602 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0605 UTC Thu Oct 29 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... Hurricane ZETA made landfall, at 28/2100 UTC, near Cocodrie in SE coastal Louisiana. ZETA now is about 60 nm inland, in SE Louisiana. ZETA is moving rapidly through Alabama, with dangerous storm surge, strong and gusty winds, and heavy rain. The center of Hurricane ZETA, at 28/0500 UTC, is near 32.4N 87.9W. This position also is about 60 nm/90 km SSW of Tuscaloosa Alabama. Zeta is moving NE or 40 kt at 31 kt. The estimated minimum central pressure is 985 mb. The maximum sustained wind speeds are 65 knots with gusts to 80 knots. Precipitation: scattered to numerous strong covers nearly the entire state of Alabama, from 120 nm to 360 nm to the NE of the center of ZETA. Please, read the latest High Seas Forecast, issued by NHC, at the website: https://www.nhc.noaa.gov/text/MIAHSFAT2.shtml, for marine impacts. Please, read the latest NHC Forecast/Advisory, and the Public Advisory on Zeta, at www.hurricanes.gov for more details. ...TROPICAL WAVES... An Atlantic Ocean tropical wave is along 50W/51W, from 16N southward, moving westward 15 knots. Precipitation: scattered to numerous strong covers the waters from 08N to 14N between 46W and 60W. A Caribbean Sea tropical wave is along 61W/62W from 20N southward, moving westward 15 to 20 knots. Precipitation: scattered to numerous strong covers the waters from 08N to 14N between 46W and 60W. Isolated to widely scattered moderate and isolated to locally strong is from 20N southward between 54W and 68W. A Caribbean Sea tropical wave is along 77W/78W, from SE Cuba southward. The tropical wave is moving westward 15 to 20 knots. Precipitation: isolated to widely scattered moderate and isolated to locally strong is elsewhere from 20N between 72W and 84W. ...MONSOON TROUGH/ITCZ... The monsoon trough passes through the coastal plains of Guinea near 09N13W, to 08N16W. The ITCZ continues from 08N16W to 06N27W and 07N39W, to 03N43W and 03N49W. Precipitation: widely scattered to scattered moderate to strong is within 120 nm to the north of the ITCZ, and within 60 nm to 75 nm to the south of the ITCZ, between 30W and 40W. Isolated to widely scattered moderate and locally strong is elsewhere from 10N southward from 30W eastward, and within 240 nm to the north of the ITCZ between 40W and 50W. GULF OF MEXICO... The center of Hurricane ZETA, at 28/0500 UTC, is near 32.4N 87.9W. This position also is about 60 nm/90 km SSW of Tuscaloosa Alabama. Zeta is moving NE or 40 kt at 31 kt. The estimated minimum central pressure is 985 mb. The maximum sustained wind speeds are 65 knots with gusts to 80 knots. Precipitation: scattered to numerous strong covers nearly the entire state of Alabama, from 120 nm to 360 nm to the NE of the center of ZETA. Please, read the latest High Seas Forecast, issued by NHC, at the website: https://www.nhc.noaa.gov/text/MIAHSFAT2.shtml, for marine impacts. Please, read the latest NHC Forecast/Advisory, and the Public Advisory on Zeta, at www.hurricanes.gov for more details. A cold front passes through coastal Louisiana near 30N92W, into the Gulf of Mexico near 24N92W, to the coast of Mexico near 19N96. The cold front continues toward the west and northwest in Mexico. Precipitation: isolated moderate to locally strong from 20N to 24N between 90W and 93W. Zeta will weaken to a tropical storm near 35.5N 83.5W Thu morning, then become extratropical as it moves into the northwest Atlantic offshore Delaware and New Jersey. A cold front currently extends from SW Louisiana to Veracruz Mexico. This front will move southeastward, and it will clear the basin on Friday. Fresh to strong northwest winds behind the front will spread across the Gulf of Mexico through early Friday. By Fri afternoon, strong north winds will be confined to the Bay of Campeche, then diminish to fresh speeds late on Friday night. High pressure will build into the area behind the front, through the weekend, with winds diminishing and seas subsiding throughout. CARIBBEAN SEA... An upper level trough passes through 23N62W in the Atlantic Ocean, curving southwestward through the eastern one-third of the Caribbean Sea, beyond the northern coast of Venezuela that is along 68W. Precipitation: isolated to widely scattered moderate and isolated to locally strong is from 20N southward between 60W and 72W. The monsoon trough is along 09N/11N, from 73W in northern Colombia, beyond Costa Rica. Precipitation: One cluster of numerous strong is within 90 nm to the south of the monsoon trough between Lake Maracaibo in NW Venezuela and 75W in Colombia. A tropical wave is along 77W/78W, from SE Cuba southward. The tropical wave is moving westward 15 to 20 knots. Precipitation: isolated to widely scattered moderate and isolated to locally strong is elsewhere from 20N between 72W and 84W. The current 77W/78W western Caribbean Sea tropical wave will cross the western Caribbean Sea through Friday. The current 61W/62W tropical wave will cross the Lesser Antilles tonight. This wave will cross the eastern Caribbean Sea through Friday, and the central Caribbean Sea on Saturday and Sunday. It is possible that, early next week, a low pressure center may develop from this tropical wave, in the SW Caribbean Sea, with a possibility of slow tropical development. Gusty winds, and rainshowers and thunderstorms, will accompany this wave, particularly in the Greater Antilles. The middle level to upper level trough, that is extending into the eastern Caribbean Sea, has reached the 700-850 mb level. The 61W/62W tropical wave is interacting with this trough, in order to produce abundant precipitation. Abundant moisture and heavy rain are expected in the Lesser Antilles through Thursday, in Puerto Rico from Thursday night into Friday, and in Hispaniola on Friday/Saturday, related to this tropical wave/middle level to upper level trough system. ATLANTIC OCEAN... An upper level trough is along 32N42W to 23N62W, across the northern islands of the eastern Caribbean Sea, beyond northern coastal Venezuela that is along 68W. Precipitation: widely scattered moderate to isolated strong from 20N to 32N between 37W and 50W. A tight pressure gradient, between lower pressure in the Caribbean Sea and central Atlantic Ocean high pressure, will lead to moderate to fresh winds S of 27N through Thursday night. A cold front will move off the SE coast of the U.S.A. on Thursday night, with some strong SW winds ahead of it, N of 29N N. These winds will spread eastward, as the front reaches a line from Bermuda to the Bahamas to Cuba this weekend, and then stalls. Some strong N winds are possible behind the front N of 29N during the upcoming weekend. A stronger cold front will sweep across the western half of the area early next week. This will be followed by strong to near gale-force north to northeast winds and building seas, mainly to the north and northeast of the Bahamas. $$ mt