High surf warning in effect until 6 p.m. Sunday, surf will be 40 to 50 feet along north facing shores

Weather Blog

HONOLULU (KHON2) – Wet weather is on the way as a strong cold front approaches the state Sunday, Jan. 17, into Monday, Jan. 18.

[Hawaii’s Weather Station – Latest in Hawaii weather]

This front will quickly advance down the island chain during the evening of Sunday, Jan. 17, then stall around the Big Island on Monday, Jan. 18, through Tuesday, Jan. 19.

Heavy showers and isolated thunderstorms will be possible along and ahead of this front.

Cool and strong northerly winds are expected following the frontal passage over the western end of the state early next week.

Trade winds may return late next week.

High Surf Warning is in effect as the largest NW swell of the winter season rapidly moves down the island chain, with peak surf heights of 40 to 50 feet (with locally higher waves) along exposed shores tonight and into tomorrow.

The swell is still anticipated to peak late this afternoon to early evening for Oahu, and in the evening for Maui.

A High Surf Advisory remains in effect for exposed north- and west-facing shores of the Big Island as the swell is expected to peak locally overnight.

The swell will gradually diminish from northwest to southeast tonight through Sunday, Jan. 17, but a new northwest swell arriving Monday, Jan. 18, will likely push surf to warning levels once again, with peak surf heights lower than today’s swell.

The Small Craft Advisory (SCA) is still in effect for most waters except Maalaea Bay, as east and southeast winds have eased below SCA criteria but seas continue to build around the islands due to the giant northwest swell moving through the island chain.

A Marine Weather Statement is in effect due to the potential for surges and significant wave action in and near exposed harbors.

Due to the period and size of the northwest swell, some (much reduced) swell may wrap into select south- and east-facing shores.

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