Waves of up to 45 feet expected to roll into the North Shore are likely to peak during high tide tonight, creating concern that the surf could wash over roads and damage coastal properties.

The National Weather Service posted a high surf warning until 6 p.m. Wednesday.

Surf along the north- and west-facing shores of Kauai, and the north shores of Oahu, Maui and Molokai is expected to reach 35 to 45 feet Tuesday, forecasters said. The west shores of Oahu and Molokai can expect surf up to 20 to 30 feet Tuesday night.

Because the swell was generated by a storm passing about 1,000 nautical miles north of Hawaii — relatively close to the islands, the waves could come in close together, increasing the chance of run-up on shore. Winds are also expected to be from the north and northwest tonight, which could also push the surf further inland.

“Expect ocean water surging and sweeping across beaches, coastal benches and lava flows creating the potential for impacts to coastal properties and infrastructure, including roadways,” forecasters said. “Large breaking surf, significant shore break, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death.”

Meanwhile, forecasters said as winds shift to the west and north as a weak cold front passes over Oahu, the vog seen Monday should clear.

However, another front approaching the islands will bring light and variable winds later in the week and vog could return Thursday and Friday.

The north winds today could also drop temperatures into the 50s and low- to mid-60s tonight.