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Atlantic Tropical Weather Outlook
2018-09-12 13:28:08| National Hurricane Center (Atlantic)
947 ABNT20 KNHC 121128 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 800 AM EDT Wed Sep 12 2018 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: The National Hurricane Center is issuing advisories on Hurricane Florence, located over the western Atlantic Ocean, on Hurricane Helene, located over the eastern Atlantic, and on Tropical Storm Isaac, located several hundred miles east of the Lesser Antilles. Cloudiness and showers associated with a trough of low pressure over the south-central Gulf of Mexico have decreased since yesterday and the Air Force reconnaissance plane scheduled to investigate the system for today will likely be cancelled. However, upper-level winds are forecast to become a little more conducive for development, and a tropical depression could still form Thursday or Friday before the system reaches the western Gulf Coast. Regardless of development, heavy rainfall and gusty winds are expected across portions of northeastern Mexico, Texas, and Louisiana late this week, and interests there should monitor the progress of this system. * Formation chance through 48 hours...medium...60 percent. * Formation chance through 5 days...medium...60 percent. A non-tropical area of low pressure located several hundred miles west-southwest of the Azores is producing a large area of showers and thunderstorms and gale-force winds. This system could gradually acquire tropical or subtropical characteristics during the next couple of days while it meanders over the northeastern Atlantic Ocean, and before it becomes absorbed by a larger trough of low pressure. For more information, see High Seas Forecasts issued by the National Weather Service. * Formation chance through 48 hours...medium...40 percent. * Formation chance through 5 days...medium...50 percent. An area of low pressure is expected to develop near Bermuda late this weekend or early next week. Some gradual development is possible after that time while the system drifts westward over the western Atlantic. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 5 days...low...20 percent && High Seas Forecasts issued by the National Weather Service are under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and available on the Web at https://ocean.weather.gov/shtml/NFDHSFAT1.shtml. $$ Forecaster Avila
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