01 Flossie 0730

Story highlights

NEW: Storm a remnant area of low pressure, forecasters say

Some areas could get up to 6 inches of rain

Up to 10,000 customers have been without power

Residents snack while storm passes

CNN  — 

Flossie, the storm that whipped Hawaii on late Monday, has weakened, the Central Pacific Hurricane Center said.

After spreading torrential rain and causing scattered power outages across the island chain, the storm is no longer a tropical depression. It is now classified as a remnant area of low pressure.

Earlier, the National Weather Service issued a flash flood warning for Maui, and flash flood watches covered the rest of the state.

Track Flossie’s progress

At 11 a.m. (5 p.m. ET), forecasters said Flossie’s center was about 65 miles north northeast of Hilo, moving west northwest at 18 mph, the National Weather Service said. Top sustained winds were 40 mph.

Weakened storm still a threat

Although the system was dissipating, Honolulu Mayor Kirk Caldwell said, “We need to take it seriously.”

“We’d really like people off the road in their homes, taking care of their loved ones and their neighbors,’ he said.

Concerns centered on the potential for flooding, as public works crews cleared culverts and storm drains.

“We’re out working to make sure that we don’t have flooding wherever possible,” Caldwell said.

When the lights go out in the city

Power outages plagued Hawaii as the storm passed.

Gusty winds knocked out electricity to about 10,000 customers of Hawaiian Electric Light Companies at different times, primarily on Maui.

“The safety of our employees and customers is our top priority,” said Jay Ignacio, the president of Hawaii Electric Light Company. “We are prepared to restore service as quickly and safely as possible.”

All airports remain open, according to the Hawaii’s Tourism Authority.

Flossie’s impact on Honolulu International Airport was limited. Some carriers canceled or delayed flights ahead of the storm, but the airport’s website showed schedules returning to normal as the storm passed.

Gov. Neil Abercrombie signed an emergency proclamation on Sunday. Evacuation shelters are open, and some government offices and schools were planning to remain closed Monday. State officials closed some beaches and backcountry trails, as well.

On Sunday, shoppers stocked up on water, food and other supplies.

“I got my water, I got my crackers, which is important. You don’t have to cook it on the stove, warm it up, dry, and I have my peanut butter at home. I usually have kaki mochi all dry,” shopper Alive Panui told CNN affiliate KITV.

Kaki mochi is a rice snack.

CNN’s Jessica Jordan contributed to this report