The weather system that slammed into the state over the weekend will bring more rain through tonight, the National Weather Service said.
Two parts of the storm are currently hovering in waters off Hawai'i, one to the east of the Big Island and one to the south of Kaua'i, bringing unstable weather, rain and possibly more thunderstorms, said Maureen Ballard, National Weather Service forecaster.
"We'll see more showers," Ballard said. "We started off the day clear here on O'ahu and Kaua'i. We're kind of in between these two areas now. Some stuff is coming on shore now. There's rain now in Kailua."
A flash flood watch for O'ahu and Kaua'i is in place through tonight.
The huge weekend storm dumped more than 10 inches of rain on parts of O'ahu over the past 24 hours, caused two boulders to crash into homes, flooded homes in Kailua and overwhelmed storm drains around the island.
Flooding was particularly bad in Kailua. Firefighters yesterday worked pumps to remove flood waters to prevent damage to people's homes on Kawailoa Street and near Buzz's Original Steak House.
Residents claim that the flooding was caused when run-off inundated Ka'elepulu Stream, which couldn't flow to the ocean because the mouth of the stream was clogged with sand.
Here is the forecast through this weekend.
Today — Scattered showers and thunderstorms. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 80. South wind around 11 mph. Chance of precipitation is 50 percent. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight — Scattered showers. The rain could be heavy at times. Mostly cloudy, with a low around 70. East wind around 7 mph. Chance of precipitation is 30 percent. New rainfall amounts between a tenth and quarter of an inch possible.
Tomorrow — Scattered showers. The rain could be heavy at times. Mostly cloudy, with a high near 82. South wind around 11 mph. Chance of precipitation is 40 percent. New rainfall amounts between a tenth and quarter of an inch possible.
Tomorrow night — Scattered showers. The rain could be heavy at times. Mostly cloudy, with a low around 72. South wind around 7 mph. Chance of precipitation is 40 percent. New rainfall amounts between a tenth and quarter of an inch possible.
Wednesday — Scattered showers. Mostly cloudy, with a high near 85. East wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40 percent. New rainfall amounts between a tenth and quarter of an inch possible.
Wednesday night — Scattered showers. Mostly cloudy, with a low around 72. East wind around 11 mph. Chance of precipitation is 30 percent. New rainfall amounts between a tenth and quarter of an inch possible.
Thursday — Scattered showers. Mostly cloudy, with a high near 85. East wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40 percent.
Thursday night — Scattered showers. Mostly cloudy, with a low around 72. East wind around 11 mph. Chance of precipitation is 40 percent.
Friday — Scattered showers. Mostly cloudy, with a high near 85. East wind around 14 mph. Chance of precipitation is 30 percent.
Friday night — A 20 percent chance of showers. Mostly cloudy, with a low around 71. East wind around 10 mph.
Saturday — A 20 percent chance of showers. Partly cloudy, with a high near 83. East wind around 14 mph.
Saturday night — A 20 percent chance of showers. Partly cloudy, with a low around 71. East wind around 11 mph.
Veterans Day — A 20 percent chance of showers. Partly cloudy, with a high near 83. East wind around 15 mph, with gusts as high as 20 mph.
