Hurricanes Isaac, Joyce move in Atlantic with no threats to land

Sept. 25 (UPI) -- With Helene dissipating on Friday, the National Hurricane Center is tracking two hurricanes in the Atlantic Ocean that are not a threat to land: Isaac and Joyce.

Hurricane Isaac was about 785 miles west of the Azores, packing maximum sustained winds of 105 mph. Isaac was moving northwest with winds of 20 mph, NHC said in the 9 a.m. GMT update .

No coastal watches or warnings are in effect.

Hurricane-force winds extend up to 30 miles from the center and tropical-storm-force winds extend outward up to 150 miles.

Isaac is moving toward the northeast and this general motion should continue through Monday followed by a turn toward the north-northeast on Tuesday, NHC said.

Isaac is projected to become a post-tropical cyclone Monday.

Joyce is south of Isaac about 1,165 miles east of the Northern Leeward Islands with maximum sustained winds of 50 mph. Joyce is moving northwest at 10 p.m. in the 5 a.m. AST update .

No coastal watches or warnings are in effect. Tropical-storm-force winds extend outward up to 105 miles from the center.

Hurricane-force winds extend up to 30 miles from the center and tropical-storm-force winds extend outward up to 150 miles.

Weakening is forecast to begin Saturday or on Sunday, and could degenerate into a remnant low by early Tuesday, NHC said.

In the north Atlantic there are two disturbances.

A tropical wave is producing disorganized showers and thunderstorms near and to the west of the Cabo Verde Islands.

Formation chance through 48 hours is 20% and through seven days is 60%.

An area of low pressure could form over the western Caribbean Sea in a few days. A tropical depression could form during the middle to latter part of next week as the system enters the Gulf of Mexico, NHC said.

Formation chance through 48 hours is 0% and through seven days is 40%.

Helene, which made landfall in northwest Florida as a Category 4 storm with maximum sustained winds of 140 mph, became a remnant low as it moved through Kentucky and into Illinois.

There are 10 named storms in the Atlantic. The next one would be Kirk.