Honolulu ? Hawaii braced for Tropical Storm Felicia on Sunday, taking no chances even though the storm weakened rapidly as it slipped toward the islands.

Felicia was downgraded to a tropical storm with maximum sustained winds of 50 mph with higher gusts. It’s expected to weaken even more before hitting Hawaii late today or early Tuesday, when it is expected be either a tropical storm or depression.

The Central Pacific Hurricane Center said the storm’s center was about 445 miles east-northeast of Hilo and 610 miles east of Honolulu as of 5 p.m. HST (10 p.m. CDT).

Tropical storms and depressions aren’t as organized as hurricanes, so the strongest winds aren’t necessarily in the center, or the eye. Therefore, even if the storm stays on course or tracks away, several islands could experience heavy winds and rains.

Most of Hawaii was under a tropical storm watch.

One of Hawaii’s most popular attractions, Hawaii Volcanoes National Park, closed most of its roads and campgrounds until “after tropical storm conditions have passed.” Several beach parks on Hawaii’s Big Island were also being closed Sunday afternoon because the storm was expected to increase wave heights.