Hurricane Iselle Headed Towards Hawaii, Expected to Bring Flash Floods and Strong Winds

PHOTO: This image provided by NOAA taken Aug. 7, 2014 at 2 a.m. EDT shows Hurricane Iselle, left and Hurricane Julio.
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Hawaii is under a Hurricane Warning today as Hurricanes Iselle and Julio approach.

Julio will not pose a big threat to the islands as it moves north of Hawaii this weekend.

The path of Iselle over the Big Island of Hawaii
ABC News
The path of Iselle over the Big Island of Hawaii

Pair of Hurricanes Will Chase Tourists Off Hawaii Beaches

Iselle, however, is a different story. Currently a Category 1 Hurricane with winds near 80 mph. It is forecast to hit the Hawaii's main island tonight as Category 1 with winds near 75 mph and gusting to 85 mph.

A satellite view of Iselle and Julio from Aug. 7, 2014.
ABC News
A satellite view of Iselle and Julio from Aug. 7, 2014.

The biggest threat will be heavy rainfall -- up to a foot possible with mudslides, rock slides and flash flooding in mountain areas. In addition, waves up to 20 feet along the coast are also possible. Storm surge will be minimal -- only 1-3 feet due to the steep coastal topography.

PHOTO: The wind forecast for Iselle Wind Forecast as it moves over the big island of Hawaii.
ABC News
PHOTO: The wind forecast for Iselle Wind Forecast as it moves over the big island of Hawaii.

Looking back at recorded history, a hurricane has never hit a Big Island of Hawaii. The last time the Big Island got hit directly was a low-end tropical storm in 1958.

Since 1949, Hawaii has been hit only twice by hurricanes. The last time was 1992 was Hurricane Iniki hit Kauai Island, as a Category 4 Hurricane. It was the most destructive hurricane ever to hit that state.

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