In the Pacific, Hurricane Iselle is bearing down on Hawaii, though it is forecast to weaken from its current Category 4 strength before hitting the tropical islands. Iselle has sustained winds of 140 mph (225 km/h), according to the latest update from the NHC. Iselle is expected to lose strength and weaken to a tropical storm as it travels over cooler water and closes in on Hawaii by Friday morning (Aug. 8).
Iselle is currently located about 1,250 miles (2,010 km) east of Hawaii and is swirling west at about 9 mph (14 km/h).
Hawaii could face a one-two punch from tropical storms, as Iselle is also being followed closely by Tropical Storm Julio. Weather models suggest Julio will become a hurricane later this week, and then, following the path of Iselle, hit cool water and weaken before slamming into Hawaii. However, the storm's path is more uncertain than Iselle's at this point.
More From LiveScience:
A History of Destruction: 8 Great Hurricanes 50 Amazing Hurricane Facts Storm Season! How, When & Where Hurricanes Form Original article on Live Science.