Breezy trade winds will continue through most of the week. Showers will favor windward and mauka areas, most frequently at night and during the early morning hours. An upper level disturbance may bring a slight uptick in trade wind shower coverage late this week into the weekend.
Issued at 825 PM HST Mon May 11 2026
Stable trade wind weather through Tuesday. Isolated to scattered showers trapped within trades will primarily focus on windward exposures and likely have more of an impact on Kauai and Oahu. AIRMET Sierra remains in effect for mountain obscurations above 3000 feet along north through east areas of Kauai. Brief overnight mountain obscurations are possible across remaining island windward locations, but VFR will likely be the prevailing category.
AIRMET Tango remains in effect for low-level turbulence downwind of island terrain.
Issued at 324 PM HST Mon May 11 2026
High pressure remains in place north of the Hawaiian Islands this week in maintenance of fresh to locally strong trades continuing into next weekend. The Small Craft Advisory has been extended through tomorrow.
Small short period NW swell has been slow to arrive this afternoon but should bring elevated surf this evening into tonight for favored exposures. A long period NW swell arrives late Wednesday and peaks Wed night into early Thurs.
A small long period S swell has likewise been slow to arrive with long period energy just barely registering on the Barber's Point PacIOOS buoy. S swell energy remains at background levels into the weekend before a medium to long period SSW swell builds late Sunday into early next week. Slightly elevated surf along E facing shores continues until trades weaken this weekend.
Small Craft Advisory until 6 PM HST Tuesday for Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters- Maalaea Bay-Pailolo Channel.
