The National Weather Service extended Maui's flash flood warning to 5:45 p.m. Thursday.
The warning covers East Maui, with the heaviest rain near Hana and Hamoa.
Doppler radar showed rain falling at 0.5 to 1.5 inches per hour over East Maui.
Flash flooding was already happening when the extension came, the weather service said.
Kipahulu, Nahiku, Kaupo, Hana, Keanae, Wailua, Hamoa, and Kailua all faced flooding.
At 10:43 a.m., emergency officials issued an evacuation warning for the Kipahulu District.
A temporary evacuation point opened at Helene Hall, 174 Keawa Place, in Hana.
A flood watch ran until 6 p.m. for Maui and Hawaii counties, plus nearby islands.
Most flood deaths happen in vehicles. Never drive through flooded roads.
Officials urged people to avoid nonessential travel into East Maui until warnings lift.
Rain should ease by evening, with trade winds returning this weekend, the weather service says.
Why the rain sat still over Maui and what to do if you are visiting.
Get the full breakdown, key numbers, and what happens next.
Read on Rive News