Heavy rains have been falling over East O’ahu and Ewa today, with water levels in Lake Wilson are expected to rise above the 84-foot flood threshold, the weather service said.

The weather service is calling for bouts of heavy rains and thunderstorms today and tonight. Conditions should gradually improve over the weekend, said Tom Birchard, forecaster for the weather service.

"That's more for nuisance flood, ponding of water on the road ways, things along those lines," Birchard said.

Hawai'i County officials have reported some roads around Hilo are covered with water and closed from runoff, according to the weather service.

According to State Civil Defense, no roads are closed yet on O'ahu. There is, however, some flooding at some spots on the Windward side.