Rainfall totals were highest in the upper slopes of the South Hilo district, where several rain gauges recorded to two to three feet of water in a 72-hour period ending Thursday at 11 a.m.
Saddle Quarry saw a staggering 44 inches over that period, while Hakalau got 27 inches of rain.
Flash flood warning for the park, no closures, but visitors urged to drive carefully. This video shows a river of rainfall crossing Hilina Pali Road. Credit: Three Mountain Alliance/Sam Foote pic.twitter.com/imxAg40jOR