000 AXNT20 KNHC 011047 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 647 AM EDT Sat Apr 1 2017 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 0600 UTC surface analysis and satellite imagery through 1045 UTC. ...ITCZ/MONSOON TROUGH... The Monsoon Trough remains over Africa. The Intertropical Convergence Zone extends from 03N14W to the coast of South America near 01S46W. Scattered moderate convection was noted within 100 nm on either side of the ITCZ. ...DISCUSSION... GULF OF MEXICO... A weakening stationary front extends from 27N82W to 25N87W. South of this feature, a squrface trough extends from 26N81W to 25N83W. Scatterometer data depicts gentle to moderate southeasterly winds west of 93W while light to gentle easterly winds prevail elsewhere. Expect for the front ans surface trough to dissipate today. CARIBBEAN SEA... A large upper-level anticyclone centered over northern Venezuela dominates the flow over the Caribbean with strong mid to upper level subsidence over the basin. At the surface, conditions remain relatively tranquil across the basin. Light to moderate trade winds were noted over most of the basin except south of 15N between 68W-74W where moderate to fresh winds are depicted in scatterometer data. Little change in the overall conditions is expected over the weekend. ...HISPANIOLA... Strong subsidence is noted on water vapor imagery over the island. The latest visible satellite imagery showed locally broken to overcast low clouds with possible embedded showers mainly over the southwest portion of the island. Little change in overall conditions is expected through the weekend. ATLANTIC OCEAN... A large middle to upper-level low is centered over the north- central Atlantic supports a cold front that enters the discussion area near 31N77W to 28N80W. Minimal shower activity is on either side of the front. To the east, a 1021 mb high is located near 29N60W. A weakening cold front extends from 30N40W to 26N49W, then it transitions to a surface trough from that point to 25N59W. A pre-frontal trough extends from 31N36W to 23N44W. No significant convection is observed with these features at this time. The remainder of the basin is dominated by a surface ridge, anchored by a 1022 mb high near 23N37W. Expect for the front and troughs over the central Atlantic to dissipate during the next 24 hours. The cold front over the west Atlantic will continue moving east. For additional information please visit http://www.hurricanes.gov/marine $$ ERA