You might want to break out your trash can lids. Hail has already been reported in Aina Haina, and Honolulu’s Department of Emergency Management has put out an alert that the pellets of ice and liquid could impact other areas of southeast Oahu.

It’s not exactly the image that the average tourist has when they envision lounging on Oahu’s white sand beaches.

Hail is rare on Oahu, but falls elsewhere in Hawaii five to eight times a year, according to the Western Regional Climate Center. Sometimes it can get as big as marbles.

Meanwhile, the heavy rains are causing flooding throughout Kauai and Oahu, which continues to be under a flash flood warning.

Gov. Neil Abercrombie has signed a disaster declaration for both islands.

“This occurrence of a severe, sudden, and extraordinary event has caused extensive damages, losses, and suffering of such character and magnitude to affect the health, welfare, and living conditions of a substantial number of persons, thereby affecting the economy of the State, which is expected to be of such nature as to warrant rehabilitative assistance from the State,” according to the proclamation.

The National Weather Service is projecting the rain to last at least through the end of the week, so commuters can expect to continue to plow through water that in some areas, such as Kaimuki, is several feet deep.

Meanwhile, Honolulu’s Division of Road Maintenance, which oversees the city’s streets, sidewalks and city-owned water ways including streams and drainage systems, is on high alert.

“This is the heaviest rain in probably at least eight months, maybe a year,” said Division Chief Tyler Sugihara. “The main thing is we’re trying to prevent flood damage to property owners, and prevent people from getting hurt.”

And it’s not just the safety of people that is a concern. East Oahu dogs, Lizzie and Kabuki, were stranded for hours at the overflowing Niu Valley Stream before being rescued, according to Hawaii News Now.

One thing that isn’t showing any signs of moving is the giant sandpile at Waikiki beach which is being used to replenish the famous tourist spot’s eroding shorelines.

The “rain has not affected the ‘sand pile,’” Deborah Ward, a spokeswoman for Hawaii’s Department of Land and Natural Resources, told Civil Beat.