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Atlantic Tropical Weather Outlook
2018-09-22 01:48:51| National Hurricane Center (Atlantic)
771 ABNT20 KNHC 212348 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 800 PM EDT Fri Sep 21 2018 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: A low pressure system is located about 600 miles south-southeast of the Cabo Verde Islands. Although the low is currently producing only limited shower and thunderstorm activity, the system appears to have become better organized since earlier today and a tropical depression could form during the next day or two. This system is expected to move westward at 15 to 20 mph across the low latitudes of the eastern and central tropical Atlantic Ocean through early next week. * Formation chance through 48 hours...medium...40 percent. * Formation chance through 5 days...medium...60 percent. A well-defined low pressure system located about 400 miles east of the Windward Islands has produced persistent thunderstorms just east of its center for the past several hours. If current trends continue, advisories could be issued on a tropical depression later tonight or on Saturday. By late this weekend, strong upper-level winds and dry air are likely to prevent further development of this system while it moves west-northwestward to northwestward at around 10 mph. * Formation chance through 48 hours...medium...60 percent. * Formation chance through 5 days...medium...60 percent. A broad area of low pressure is located a little more than 150 miles southeast of Bermuda. This low is producing minimal shower activity, and little development is anticipated for the next day or two. However, environmental conditions could become more conducive for slow development by late this weekend or early next week when the system moves over the southwestern Atlantic Ocean. * Formation chance through 48 hours...low...10 percent. * Formation chance through 5 days...low...30 percent. A non-tropical low pressure system is expected to develop early this weekend over the north-central 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 likely to form late this weekend or early next week while the low meanders over the central Atlantic Ocean. * Formation chance through 48 hours...low...30 percent. * Formation chance through 5 days...high...70 percent. $$ Forecaster Zelinsky
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