000 AXNT20 KNHC 062349 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0005 UTC Fri May 7 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 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 2220 UTC. ...MONSOON TROUGH/ITCZ... The monsoon trough passes through the coastal sections of Guinea near 09N13W to 03N20W to 03N28W to Equator along 35W. No ITCZ was present. Scattered moderate convection is from 0N to 10N E of 22W. Widely scattered moderate convection is from 00N to 08N between 29W and 41W and from 06N to 10N between 47W and 55W. GULF OF MEXICO... A middle to upper level trough continue to support a stationary front that as of 2100 UTC extends from near Panama City, Florida to 27N90W and to 24N94W. Low level precipitable water imagery depict shallow moisture ahead of this front, which is generating scattered showers over the NE gulf. Moderate north to northeast winds are behind the front over the NW basin as well as along the eastern coast of Mexico adjacent waters where seas range between 3 to 5 ft. The eastern part of the front will transition back to a cold front and push southward to the southeastern Gulf by Fri evening, while the remainder of the front weakens and dissipates. Moderate to fresh return flow is expected in the western and central Gulf this weekend and into early next week as high pressure in the wake of the front shifts eastward. Otherwise, hazy sky conditions due to agricultural fires in southeastern Mexico are expected to continue over most of the SW Gulf through Fri night. CARIBBEAN SEA... Scattered to isolated showers are over the Mona Passage, western Puerto Rico, Hispaniola, Jamaica as well as western and eastern Cuba. The east Pacific monsoon trough supports similar convection over the Costa Rica and Panama adjacent waters. Clear skies and fair weather conditions are elsewhere. Moderate trades are across the central and eastern Caribbean with seas ranging between 3 to 5 ft. Light to gentle variable winds with seas up to 3 ft are in the NW portion of the basin. A surface ridge north of the area will support moderate trade winds over most of the basin through Sat. Stronger trades are likely across the central Caribbean Sun and Mon as high pressure builds to the north. ATLANTIC OCEAN... A middle to upper level trough supports a stationary front across northern Florida and a pre-frontal trough that extends from 31N74W to near Vero Beach. Diffluent flow between the base of the upper trough and a broad anticyclone that sits over the NW Caribbean supports scattered showers and tstms within 90 nm ahead of the trough. Moderate southwest winds are ahead of the trough N of 27N to 65W with seas to 4 ft. The remainder Atlantic waters are under the influence of the Azores high which is anchored by a 1023 mb high near 34N21W. Altimeter passes show seas in the 3 to 5 ft range. The stationary front over northern Florida will transition to a cold front late tonight and move over the northwest waters. The cold front is forecast to reach from near 31N76W to the Straits of Florida Fri morning. The northern part of the front will continue eastward across the northern forecast waters through Sat night while weakening. A high pressure ridge will build along 31N in the wake of the front through Sun night. The ridge will shift eastward Mon night as another cold front moves over the northwest waters. The cold front will become stationary over the far northern waters Tue and Tue night. $$ Ramos