A flash flood watch remains in effect for all Hawaiian islands through late this evening, according to the National Weather Service.
A strong upper level trough passing over the islands and a surface low lifting northward west of Kauai will bring tropical moisture northward across the state.
Bands of heavy rain and thunderstorms have the potential to produce flooding, according to an NWS report.
Some streams are expected to run high and could quickly overflow.
Prepared to take action should flash flood warnings be issued. Consider postponing outdoor activities such as camping or hiking trips until the weather improves.