000 ABNT20 KNHC 160543 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 200 AM EDT Mon Oct 16 2017 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: The National Hurricane Center has issued the last advisory on Hurricane Ophelia, located over the far northeastern Atlantic Ocean a couple of hundred miles south-southwest of Ireland. A low pressure system located about 100 miles east-northeast of the Turks and Caicos Islands is gradually becoming better defined. Associated thunderstorm activity has increased and become a little better organized this morning, and gale-force winds have been occurring in squalls northeast of the center. Some development of this low will be possible during the next day or so while it moves generally northward over the western Atlantic. However, upper-level winds are expected to become unfavorable for tropical cyclone formation by late Tuesday, and the system is likely to merge with a front and become extratropical on Wednesday. * Formation chance through 48 hours...medium...40 percent. * Formation chance through 5 days...medium...40 percent. $$ Forecaster Stewart