Tropical Cyclone Discussion
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000 WTNT45 KNHC 190249 TCDAT5 Remnants Of Don Discussion Number 6 NWS National Hurricane Center Miami FL AL052017 1100 PM AST Tue Jul 18 2017 An Air Force Reserve reconnaissance aircraft made several passes through the system this evening and was only able to find a sharp wind shift--but no winds with a westerly component. Pressures have also risen, and it appears that Don no longer has a center of circulation. Therefore, Don is being declared an open wave, and this is the last advisory on this system. Based on the aircraft data, the wave is still producing maximum winds of 35 kt west of the Windward Islands over the far southeastern Caribbean Sea. The wave is moving westward at about 22 kt, and it should continue moving quickly westward across the Caribbean Sea during the next couple of days. Due to the system`s fast motion, as well as unfavorable atmospheric conditions over the Caribbean Sea, regeneration into a tropical cyclone is not expected at this time. However, the wave is expected to continue producing gales through early Wednesday, and then winds just below gale force for the next couple of days. This is the last advisory on Don, and additional information on this system can be found in High Seas Forecasts issued by the National Weather Service, under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and available on the Web at FORECAST POSITIONS AND MAX WINDS INIT 19/0300Z 11.9N 62.5W 35 KT 40 MPH...REMNANTS OF DON 12H 19/1200Z...DISSIPATED $$ Forecaster Berg is the U.S. government's official web portal to all federal, state and local government web resources and services.