Persistent, moderate to briefly heavy rain that caused flooding, rock slides and trees to fall on the Hana Highway overnight and Sunday is not letting up, prompting a flash flood watch for windward Maui.
The National Weather Service said the ground is saturated and more rain could produce flash flooding. About 14 inches of rain was recorded West Wailuaiki over 36 hours, the weather service said.
Rain with rates of an inch an hour fell along windward East Maui this morning.
The threat of more rain continues through Tuesday as a cold front, that passed over Oahu and Kauai over the weekend, remains stalled near Maui.
A flood advisory for East Maui expired at 2:45 p.m. as rains eased this afternoon.
Rains Sunday caused trees to fall and rock slides along the Hana Highway. Maui police reported rocks on the road at Mile Marker 17 and a leaning tree at Mile Marker 12 just before midnight.
Flooding and road closures were also reported in Hana at Ulaino and Waikoloa roads just after noon Sunday.
A downed tree and rock slides closed part of the Hana Highway earlier in the morning at Mile Marker 22.
The more than 1.16 inches of rain that fell at the Kahului Airport Sunday broke a record for the date. The old record of .39 inches was set on May 8, 1996.
Forecasters expect the stalled front to bring more rain to windward Maui and parts of the Big Island for several days. However, the threat of heavy rain is expected to diminish Tuesday.
Elsewhere, forecasters expect breezy, cool tradewinds with scattered showers for windward areas. The rains are not expected to be as constant as on Maui. Leeward areas can expect partly cloudy conditions with scattered showers.