000 ABNT20 KNHC 270544 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 200 AM EDT Fri Oct 27 2017 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: Shower activity associated with a trough of low preesure over the northwestern Caribbean Sea has become more concentrated during the past several hours between northeastern Honduras and Jamaica. Environmental conditions are expected to be conducive for some development today and Saturday as the system moves slowly northward over the northwestern Caribbean Sea. Strong upper-level winds associated with an approaching cold front will make conditions less favorable by Sunday. Regardless of development, this system is expected to produce locally heavy rainfall over the Cayman Islands, Jamaica, and portions of Cuba during the next day or two. These rains are forecast to spread northward across portions of South Florida and the Keys on Saturday, and over the northwestern Bahamas Saturday night and Sunday. * Formation chance through 48 hours...medium...50 percent. * Formation chance through 5 days...medium...50 percent. $$ Forecaster Beven