000 ABNT20 KNHC 191150 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 800 AM EDT Mon Aug 19 2019 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: Thunderstorm activity has decreased in association with a low pressure system located a couple of hundred miles south of Nantucket, Massachusetts. Significant development of this system is now unlikely as it moves east-northeastward away from the United States. * Formation chance through 48 hours...low...10 percent. * Formation chance through 5 days...low...10 percent. $$ Forecaster Pasch