Moderate to breezy trades continue well into next week. Showers will generally favor windward and mauka areas, particularly during the overnight through early morning hours each day. An uptick in moisture next week could increase shower activity. Tropical Storm Lowell remains far SE of the main Hawaiian Islands, and uncertainty in its track, timing, and intensity forecast remains high at this time.
Iso-sct -SHRA expected this morning across the island chain with a drying trend by this afternoon into the overnight hours for lee sides of the islands. Moderate trade wind pattern prevails. Generally VFR through the TAF period and occasional MVFR conditions due to passing showers/lower CIGs. Expect low CIGs and SHRA over windward and mauka slopes most areas and with VCSH for those TAFs.
AIRMET Tango is in effect for mod low-level turb lee of terrain and may be needed for a few days.
Issued at 406 AM HST Sat Aug 29 2026
The subtropical ridge will remain locked in place north of the Hawaiian Islands through much of next week keeping moderate to locally strong trade winds in the forecast for the foreseeable future. A Small Craft Advisory (SCA) has been extended for the windier waters and channels around Maui County and the Big Island through Sunday afternoon. These SCA conditions look to persist through the first half of next week.
Tropical cyclone Lowell may move into the Hawaiian Region potentially bringing an area of hurricane force winds into the southern offshore waters by the end of next week.
The south swell that peaked just below advisory thresholds on Friday, will slowly decline over the next few days. Another south swell will increase surf heights starting on Tuesday, peaking on Wednesday near High Surf Advisory levels, then slowly fading into the end of next week.
Surf along east facing shores will remain choppy in response to the locally strong trade winds over and upstream of the islands. A small medium period east swell from Tropical Storm Iselle has filled in and will hold through the day.
Small Craft Advisory until 6 PM HST Sunday for Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters- Maalaea Bay-Pailolo Channel.
