Everyone's attention has been focused on Florence, but the statistical peak of the Atlantic hurricane is certainly living up to its reputation this year.
Isaac is expected to produce up to 3 inches of rain, with isolated maximum totals of up to 5 inches, across southeast Puerto Rico.
Winds of 40 mph extend outward up to 115 miles (185 km) from the center of the tropical cyclone.
Although the storm is approaching the USA coastline as a Category 2 hurricane after weakening from a Category 4 storm, that doesn't mean the storm will be gentle.
Maximum sustained winds remain near 60 miles per hour (95 km/h) with higher gusts.
Hurricane and tropical storm watches have been posted for several Caribbean islands as a weakening Tropical Storm Isaac continues its trek toward the Leeward and Windward Islands.
The system grew into a named tropical storm last Saturday afternoon and flared up to a Category 1 hurricane Sunday night - becoming the fifth-named hurricane of the 2018 Atlantic season.
Marco Petagna, a Met Office forecaster, said: "Storm Helene is still in the Atlantic but it could have an influence in Britain next week". The upper level winds are light, meaning the storm is likely to maintain intensity, or even strengthen a bit before making landfall.
No other tropical systems or areas of possible activity are now being monitored. Locally higher amounts for storm surge are possible along the rivers and sounds near New Bern, NC. The slow-moving storm is still dumping colossal amounts of rain on North Carolina and parts of northern SC.
Once a hurricane named Isaac, the depression is now "dissipated" in the Caribbean according to the National Hurricane Center on September 15, 2018. Danger to life warnings include flying debris and large waves along the coast. "These swells are likely to cause life-threatening surf and rip current conditions". Interests along the northeastern Mexico and the coasts of Texas and Louisiana should monitor the progress of this system.