Moderate to breezy trade winds are expected through much of next week as high pressure remains north of the region. Showers will focus mostly over windward and mountain areas, with slight upticks in coverage expected overnight through the early morning hours. Wetter trade wind conditions are possible next week as areas of enhanced moisture are forecast to move through the islands.
Moderate to breezy trades will persist through the forecast period. Low clouds and showers will favor windward and mauka areas as batches of moisture move in on the trades. Expect brief MVFR conditions in showers and VFR elsewhere.
AIRMET Sierra is in effect for mountain obscurations for windward sections of Kauai, Oahu, Molokai, Maui, and the Big Island. Conditions may linger into the afternoon due to the ongoing and upstream showers.
AIRMET Tango is in effect for moderate turbulence downwind of terrain due to the breezy trade winds and will continue through the forecast period.
High pressure to the north will dominate through at least the first half of next week, keeping moderate to locally strong trade winds in place across Hawaiian waters. A Small Craft Advisory (SCA) remains in effect for the typically windier waters around Maui and the Big Island. The SCA is in effect through Saturday afternoon. Winds may slightly decrease Sunday into Monday, but will likely remain at SCA levels for our typical windier waters.
A small, medium-period south swell will gradually ease today into Saturday. Surf will fall below seasonal averages by tonight. Another small, long-period south swell will arrive and fill in on Saturday, then peak on Sunday before gradually declining early next week. This swell should boost surf heights back up to near normal for this time of year.
Surf along east facing shores will remain rough and choppy with a slight decline possible early next week due to minor fluctuations of our trades. Surf heights along north facing shores will remain small to tiny through the first half of next week. A tiny bump in surf is possible for north-facing shores on Saturday with the arrival of a very small, medum-period west- northwest swell.
Small Craft Advisory until 6 PM HST Saturday for Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters- Maalaea Bay-Pailolo Channel.
