A weak trough will exit west of the state early this morning, however some showery conditions will linger over Kauai through the morning hours, while rather dry conditions prevail over the rest of the state. The trough will dissipate west of the islands tonight and Monday, with trade winds increasing to breezy levels by late Monday or Monday night, and continuing through late this week. A fairly typical trade wind pattern will become established in the wake of the trough, with showers favoring windward and mauka areas, particularly at night and during the early morning hours.
Stable and mostly dry trade wind weather is expected today with trades increasing into the moderate to locally breezy category later this morning into the afternoon. The one exception is over Kauai, where we will continue to see showers with periods of MVFR conditions.
AIRMET Sierra is in effect for mtn obsc over Kauai and will likely continue through much of the day and into tonight.
AIRMET Tango will likely be needed for low-level turb with trades strengthening this afternoon into Monday.
Issued at 300 AM HST Sun May 10 2026
A high pressure ridge will remain in place north of the Hawaiian Islands this week with easterly trade winds blowing in the fresh to locally strong range lasting into next weekend.
A small medium period northwest swell will maintain small surf heights along north and west facing shores today, shifting out of the north to north northwest direction by tonight and then fading out by Tuesday. The next small long period northwest swell pulses into the region by Wednesday afternoon, peaking by Thursday morning, then decreasing from Friday onward.
Small long period south swell energy will fade today with two additional small long period background south swells moving in on Monday and Thursday night. Surf along east facing shores will remain below normal today, with increasing surf heights peaking by Wednesday as trade winds strengthen.
Small Craft Advisory until 6 AM HST Tuesday for Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters- Maalaea Bay-Pailolo Channel.
