000 ABNT20 KNHC 171740 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 200 PM EDT Thu Sep 17 2020 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: The National Hurricane Center is issuing advisories on Hurricane Teddy, located over the central tropical Atlantic and on recently downgraded Tropical Depression Vicky, located over the eastern tropical Atlantic. Shower and thunderstorm activity has changed little today in association with an area low pressure system located over the southwestern Gulf of Mexico. Upper-level winds are gradually becoming more conducive for development, and a tropical depression or a tropical storm could form within the next day or so. The low is expected to meander over the southwestern Gulf of Mexico through tonight before moving slowly northward to northeastward on Friday and Saturday. An Air Force Reserve reconnaissance aircraft is scheduled to investigate the disturbance this afternoon. For more information on this system, see High Seas Forecasts issued by the National Weather Service. * Formation chance through 48 hours...high...90 percent. * Formation chance through 5 days...high...90 percent. An elongated area of low pressure located a few hundred miles south-southwest of the Cabo Verde Islands is producing disorganized shower and thunderstorm activity. Environmental conditions are expected to be conducive for development during the next few days, and a tropical depression could form before upper-level winds become less favorable by late this weekend. The system is forecast to move west-northwestward at 10 to 15 mph during the next several days. * Formation chance through 48 hours...medium...40 percent. * Formation chance through 5 days...medium...50 percent. Showers and thunderstorms have change little since this morning in association with a non-tropical area of low pressure located over the far northeastern Atlantic Ocean several hundred miles east of the Azores. Some additional subtropical development is possible over the next day or so as it moves east-southeastward and then northeastward at about 10 mph. The system is expected to reach the coast of Portugal late Friday. For more information on this system, see High Seas Forecasts issued by Meteo France. * Formation chance through 48 hours...low...30 percent. * Formation chance through 5 days...low...30 percent. && High Seas Forecasts issued by Meteo France can be found under WMO header FQNT50 LFPW and available on the web at www.meteofrance.com/previsions-meteo-marine/bulletin/grandlarge/ metarea2 High Seas Forecasts issued by the National Weather Service can be found under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and online at ocean.weather.gov/shtml/NFDHSFAT1.php $$ Forecaster Latto