The swell train that blessed southern shores this weekend will continue.

Although the south swell was forecast to drop slightly today to 4 to 6 feet, the National Weather Service extended its high-surf advisory through tomorrow, when wave faces on southern shores of all islands are expected to rise to 5 to 8 feet.

On O'ahu's north-facing shores, waves also are expected to build to 5 to 8 feet today and last through tomorrow.

And the island's west- and east-facing shores will see waves build to 3 to 5 feet tomorrow.

Pat Caldwell, a surf forecaster for the National Oceanic and Atmospheric Administration, said the transition between summer and winter surf seasons often have waves from several swell directions.

North shore surfers are probably quite anxious for the winter to start. They were treated to a one-in-100-years swell in August — wave faces reached 12 feet — but nothing since.

After that episode, "the faucet was turned off," he said.

"September has been very sleepy, but there is a lot of anticipation of something happening," Caldwell said.