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Atlantic Tropical Weather Outlook
2018-09-21 07:15:49| National Hurricane Center (Atlantic)
480 ABNT20 KNHC 210515 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 200 AM EDT Fri Sep 21 2018 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: A tropical wave located more than 700 miles southeast of the Cabo Verde Islands. Some gradual development of this system is possible during the next several days as the disturbance moves westward at 15 to 20 mph across the low latitudes of the eastern and central tropical Atlantic Ocean. * Formation chance through 48 hours...low...10 percent. * Formation chance through 5 days...medium...50 percent. A small but concentrated area of showers and thunderstorms associated with a tropical wave is located about 650 miles east of the Windward Islands. The combination of dry mid-level air and strong upper-level winds is expected to hinder any development of this disturbance while it moves westward to west-northwestward at around 10 mph. * Formation chance through 48 hours...low...10 percent. * Formation chance through 5 days...low...10 percent. A non-tropical area of low pressure located less than 100 miles northeast of Bermuda, is moving southward at 10 to 15 mph. Shower activity has diminished significantly during the past several hours, and the combination of dry air and strong upper-level winds is expected to inhibit any significant development for the next several days while the system moves southward on Friday, and then drifts westward to the southwest of Bermuda over the weekend. * Formation chance through 48 hours...low...10 percent. * Formation chance through 5 days...low...20 percent. Another non-tropical low pressure system is forecast to develop by Friday night over the central subtropical Atlantic Ocean midway between Bermuda and the Azores. Conditions are expected to be conducive for the low to acquire subtropical or tropical characteristics, and a subtropical or tropical cyclone is expected to form late this weekend or early next week while the low meanders over the central Atlantic Ocean. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 5 days...high...70 percent. $$ Forecaster Stewart
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