000 ABNT20 KNHC 180518 TWOAT TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 200 AM EDT SAT JUN 18 2016 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: A tropical wave is producing disorganized thunderstorms and cloudiness over the Yucatan peninsula of Mexico, Belize, northern Guatemala, and adjacent waters of the northwestern Caribbean Sea. A weak surface low pressure system could form over the southern Yucatan peninsula during the next day or so. At this time, only slow development of this disturbance is expected due to proximity to land and only marginally conducive upper-level winds. The system is forecast to move westward to west-northwestward at about 10 mph during the next few days, emerging over the Bay of Campeche and the southwestern Gulf of Mexico by Sunday. * Formation chance through 48 hours...low...20 percent * Formation chance through 5 days...medium...40 percent $$ Forecaster Stewart