Isaac dissipates in southern Caribbean

Cristina Cross
September 15, 2018

In contrast, Florence weakened on Thursday, September 13, to a Category 2 event, although that is not to say it is not still extremely unsafe. Tropical depressions are organized systems but with sustained wind speeds less than 39 miles per hour.

No storm warnings have been posted yet for the territory, but tropical storm warnings are in effect for Martinique, Dominica and Guadeloupe. "Maximum sustained winds remain near 90 miles per hour (150 km/h) with higher gusts".

NHC forecasters say that a slow southwestward motion is expected for the next couple of days.

NOAA satellite photo taken at 8:30 p.m. Wednesday shows Tropical Storm Isaac, right, on the doorstep of the Antilles, while Hurricane Florence, a Category 4 storm, takes aim at the USA east coast. If the rain bands persist, the National Weather Service may raise the flash flood watch to a flash flood warning triggering the emergency alert system. More than 60 people had to be rescued in another town as a cinderblock motel collapsed at the height of the storm's fury.

A Tropical Storm Watch which had been issued for St. Kitts and Nevis, Montserrat, Barbuda and Antigua was also expected to be discontinued by Thursday evening.

"I notified every public agency in Coweta County, mainly putting people on alert and telling them to gear up, get what they need, check staff levels and bolster them, if need be", he said.

What scares experts about Hurricane Florence
For example, the seas off of Wilmington , North Carolina have risen 7.5 inches since 1935, according to NOAA. Much of Hampton Roads and parts of northeastern North Carolina are no longer in the storm's forecast cone.

For example, one hurricane can be moving slowly westward in the Gulf of Mexico, while at exactly the same time another hurricane can be moving rapidly northward along the Atlantic coast.

NASA's Aqua satellite passed over Hurricane Helene on September 13 at 12:45 a.m. EDT (0445 UTC) and analyzed it in infrared light.

The National Oceanic and Atmospheric Administration (NOAA) has detailed online how hurricanes take shape. Earlier forecasts showed that the storm was slated to directly hit around North and SC. Then on Sunday, as a weakening Florence moves away from our region, our winds will gradually weaken during the day, with some wraparound showers possible.

A Hurricane Hunter airplane flew through the remnants of the storm and was unable to find a well-defined center, the hurricane center said in a 5 a.m. Saturday advisory.

The NHC is estimating that as many as 20 inches of rain could fall in some places along the southern North Carolina coast while bringing in excess of 10 inches of rain in parts of SC. More than 360 people have been carried to safety since Thursday night amid rising waters from a river swelled by both rain and salty storm surge.

For its part, the tropical storm Helene, located southwest of the Portuguese Azores, has tilted its course to the north and must be maintained with a similar course and speed of translation over the waters of the eastern Atlantic. Florence has 130 miles per hour winds, enough to make it a risky Category 4 hurricane. Please consult products from your local weather office.

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