000 AXNT20 KNHC 200613 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0605 UTC Sat Mar 20 2021 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 0550 UTC. ...SPECIAL FEATURES... ...ATLANTIC OCEAN GALE-FORCE WINDS... The 12-hour forecast consists of stationary front, from 31N67W to 23.5N81W. Expect frequent gusts to gale-force, within 60 nm of the coast of Florida N of 29N. The sea heights will range from 8 feet to 10 feet, and then increase to a range of 9 feet to 14 feet at 24 hours. Expect the same frequent gusts to gale-force, within 60 nm of the coast of Florida N of 29N, at 24 hours. Please, read the latest NWS High Seas Forecast, from the National Hurricane Center, at the website: www.nhc.noaa.gov/text/MIAHSFAT2.shtml, for more details. ...MONSOON TROUGH/ITCZ... The monsoon trough passes through the coastal sections of Sierra Leone near 07N12W, to 05N15W, and to 04N18W. The ITCZ continues from 04N18W, to 03N30W, 02N40W, 1N50W at the coast of Brazil. Precipitation: scattered to numerous strong is from 03N southward from 04W eastward, and from 03N southward between 16W and 20W. Widely scattered moderate to isolated strong is elsewhere, from 07N southward from South America eastward. GULF OF MEXICO... A cold front is along 31N/32N from 74W in the Atlantic Ocean, into SE Georgia. This cold front continues inland, eventually into the Florida Panhandle, and to southern Louisiana. Precipitation: broken to overcast multilayered clouds and possible rainshowers are within 60 nm to 120 nm on either side of the cold front. A surface ridge extends from eastern sections of Texas, to the SW corner of the Gulf of Mexico. A cold front will move into the northeast Gulf early Sat, and will weaken as it moves across the eastern and central Gulf through through late Sun. High pressure will build in the northeast Gulf early next week, supporting increased E to SE winds and building seas over the western Gulf. Looking ahead, a weak cold front may enter the far northwest Gulf late Tue or Wed. CARIBBEAN SEA... A slowly-moving cold front moves through Cuba near 23N81W, into the NE Yucatan Peninsula, and to northern Guatemala. Precipitation: broken to overcast multilayered clouds, and isolated moderate to locally strong rainshowers are within 240 nm to the east and southeast of the cold front. Broad low level-to-700 mb cyclonic wind flow covers the area of the SW Caribbean Sea, northwestward, into Central America. Precipitation: isolated moderate to locally strong rainfall covers the area from Panama to Honduras, including in the coastal waters of Central America. Please refer to the forecasts and the weather bulletins from your local meteorological offices for more details. A surface trough is along 11N73W in northern Colombia, through and beyond the Colombia/Panama border, into the eastern Pacific Ocean. Precipitation: scattered moderate to isolated-to-widely scattered strong is within 150 nm to the south of the surface trough, in Colombia and its coastal waters. Please refer to the forecasts and the weather bulletins from your local meteorological offices for more details. Broken to overcast low level clouds, and isolated moderate rainshowers, cover the rest of the Caribbean Sea. The clouds and isolated moderate precipitation are moving with the surface-to-low level wind flow. The current cold front across the Yucatan Channel will stall and dissipate in the far northwest Gulf through late Sat. Large northerly swell east of the Leeward Islands will subside through Saturday. ATLANTIC OCEAN... A stationary front is along 32N32W 27N40W 20N50W. A surface trough continues from 20N50W to 17N58W. Precipitation: widely scattered moderate to isolated strong is within 240 nm to the northwest of the stationary front from 26N northward. Isolated moderate to locally strong is within 180 nm on the eastern side of the stationary front, from 22N northward. Rainshowers are possible, elsewhere, within 420 nm of the front and trough on the northwestern side, and within 240 nm of the front/trough on the eastern side of the same boundary. A surface ridge passes through 32N52W to 24N64W, to Hispaniola, on the western side of the stationary front/surface trough. A cold front passes through 32N70W, to the NW Bahamas, to the coast of Cuba near 23N81W. Precipitation: widely scattered to scattered moderate and isolated strong is within 150 nm on the eastern side of the cold front, from 25N northward. A second cold front is along 31N/32N from 74W into Georgia. Precipitation: broken to overcast multilayered clouds and possible rainshowers are elsewhere from 30N northward from 70W westward. A cold front currently reaching from 31N71W to western Cuba will stall from Bermuda central Cuba by early Sat. A second front will move into the waters off northeast Florida early Sat, and move into the Straits of Florida by early Sun as the first front dissipates. The second front will move farther east and dissipate through Mon as low pressure developing along the front moves north of the area. $$ mt