Tropical Storm Hermine has formed over the central Gulf of Mexico. Its northward speed of movement will increase later Wednesday with a turn toward the northeast expected Wednesday night into Thursday. Landfall as a tropical storm is expected along the Big Bend of Florida Thursday night. From there, it will track near the Carolina coast later on Friday. Flooding rainfall, coastal flooding and locally damaging winds will be the main threats from this system over Florida, particularly across western and northern portions of the state. Some coastal flooding and beach erosion are threats for portions of the western and northwestern Florida coast. A few tornadoes are also likely Thursday and Thursday night from central Florida into far southern Georgia. Heavy rain and high winds may also impact the southeastern U.S. coast Friday into Friday night. Looking down the road, latest global computer models take the system closer to the northeastern U.S. coast, and in fact, bend the track back toward the coast late in the weekend or early next week.
Tropical Depression Eight is slowly drifting to the northeast off the coast of North Carolina. Showers and thunderstorms are concentrated near and to the east of the low-level center, but these are well east of the Outer Banks of North Carolina. The depression will continue to drift to the northeast, then pick up more speed later Wednesday, during which time there is a slight chance it could briefly become a tropical storm before transitioning to an extratropical cyclone as it treks into the open waters of the North Atlantic.
Hurricane Gaston has weakened slightly, and is now a Category 2 hurricane as it continues to track northeastward across the open waters of the Atlantic. While not currently bringing any direct impacts to land, it will cause rough surf across Bermuda through the next day or so. Gaston will maintain hurricane status over the next 24-36 hours before increasingly hostile conditions causes Gaston to weaken into a tropical storm. Gaston will bring the chance of gusty winds and heavy rain to the Azores on Friday evening into Saturday.
Low pressure within a strong tropical wave near the Cabo Verde Islands is tracking to the west and latest global models show this system impacting the Leeward Islands late this weekend with numerous showers and perhaps gusty winds.
By AccuWeather Meteorologist Mike Doll, updated by Meteorologist Alyson Hoegg and Meteorologist Rich Jaworski
505 ABNT20 KNHC 311750 TWOAT TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 200 PM EDT WED AUG 31 2016 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: The National Hurricane Center is issuing advisories on Hurricane Gaston, located well east of Bermuda, on Tropical Depression Eight, located east of North Carolina, and on recently upgraded Tropical Storm Hermine, located over the south-central Gulf of Mexico. A broad area of low pressure, associated with a tropical wave, is located over the far eastern Atlantic just west of the Cabo Verde Islands. This wave is expected to be in an environment of very dry air for the next few days, which should prevent significant development during that time. Environmental conditions could become a little more conducive for slow development on Sunday or Monday when the wave is near the Lesser Antilles. * Formation chance through 48 hours...low...near 0 percent * Formation chance through 5 days...low...30 percent $$ Forecaster Blake