000 AXNT20 KNHC 202331 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 731 PM EDT Tue Jun 20 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 1800 UTC surface analysis and satellite imagery through 2330 UTC. ...SPECIAL FEATURES... As of 2100 UTC, the last advisory for Bret was issued. Its center is located near 12.0N/67.3W. Minimum pressure is 1008 mb, and sustained winds are 35 kt with gusts to 45 kt. The remnants of Bret are moving west-northwest at 19 kt. Scattered moderate convection extends across portions of northern Venezuela and the eastern Caribbean between 60W-70W. As of 2100 UTC, Tropical Storm Cindy is centered over the Gulf of Mexico near 25.7N/90.6W. Cindy remains nearly stationary. Its minimum central pressure is 999 mb. Maximum sustained winds are 40 kt with gusts up to 50 kt. Numerous moderate to strong convection extend across the eastern half of the Gulf of Mexico mainly east of 90W. Please read the NHC Forecast/Advisory under AWIPS/WMO headers MIATCMAT3/WTNT23 KNHC, and the Intermediate Public Forecast/Advisory under the AWIPS/WMO headers MIATCPAT3/WTNT33 KNHC for more details. ...TROPICAL WAVES... A tropical wave is over the eastern Atlantic with an axis extending from 14N34W to 02N37W, moving westward at 10 to 15 kt. This wave is well defined with sharp troughing indicated at 700 mb. Isolated moderate convection is from 06N to 09N between 34W and 38W. A tropical wave is over the central Atlantic with an axis extending from 12N48W to 02N49W, moving westward at around 15 kt. This wave is at the leading edge of a deep moisture surge, with subtle troughing at 700 mb. Isolated showers prevail west of the axis along 08N. A tropical wave is over the central Caribbean with an axis extending from 20N72W to 09N73W, moving westward at 10 to 15 kt. This wave does not have a strong signature at 850 or 700 mb. However, the wave has been tracked utilizing infrared satellite imagery indicating persistent area of scattered showers and thunderstorms along and within 90 nm on either side of the wave's axis affecting Hispaniola. ...MONSOON TROUGH/ITCZ... The Monsoon Trough extends from the coast of west Africa near 12N16W to 07N34W. The ITCZ extends from 05N38W to 05N47W. Other than convection associated with the two tropical waves over the tropical Atlantic, scattered moderate convection is from 05N to 11N between 20W and 25W. ...DISCUSSION... GULF OF MEXICO... Tropical Storm Cindy is over the central Gulf supporting widespread convection. Please refer to the Special Features section above for details. A surface trough extends from 24N89W to 18N88W. This feature combined with Cindy are supporting scattered to numerous showers and thunderstorms affecting the Yucatan Peninsula and Channel. Aside from these two features, winds around the perimeter of the Gulf are cyclonic and mainly between 15 to 25 kt. Over the next 24 hours, Cindy is expected to move northwest over the north central Gulf. Heavy rainfall will follow the system affecting the central Gulf, including land areas of the central coastal Gulf States. CARIBBEAN SEA... The remnants of T.S. Bret are over the southeastern Caribbean. Please refer to the Special Features section for more details. A tropical wave is over the central Caribbean. Please refer to the Tropical Waves section for more details. A surface trough extends across the Yucatan Peninsula reaching the far west Caribbean with scattered moderate convection mainly west of 85W. Aside from winds associated with the remnants of Bret, mainly fresh winds cover the Caribbean basin, except light winds south of 10N over the southwest Caribbean. Over the next 24 hours, the trough will continue to support scattered to numerous showers and thunderstorms over the western Caribbean. Showers and thunderstorms will increase over the central Caribbean as the remnants of Bret make its way across the southern portion of the basin. ...HISPANIOLA... A tropical wave is moving across the island supporting scattered showers and thunderstorms. This activity will continue through tonight as the wave moves west. Additional showers and thunderstorms are possible on Wednesday associated with moisture well to the north of the remnants of T.S. Bret, as is passes to the south of the island. ATLANTIC OCEAN... Two tropical waves are moving westward between the coast of Africa and the Lesser Antilles. Please refer to the Tropical Waves section above for details. A broad high pressure covers the entire Atlantic anchored by a stationary 1030 mb high north of the area. A weak cold front extends from 34N22W to 24N33W to 26N49W with no significant convection. For additional information please visit http://www.hurricanes.gov/marine $$ ERA