Typical moderate to locally breezy trade winds will continue through this weekend and bring mainly night and morning scattered showers to windward and mauka locations. By early next week, a deepening trough northwest of the state will pull up a more moisture rich tropical air mass over the state and increase precipitation chances. Some of the rain could be heavy, especially mid- to late next week.
Issued at 930 AM HST Thu Apr 2 2026
Moderate trades with occasional light showers primarily focusing on windward and upslope mauka areas. Better organized showers will briefly lower ceilings and visibilities into MVFR categories. Otherwise, prevailing VFR conditions.
An AIRMET is in effect for the entire area for moderate turbulence between FL280 and FL380. The passage of a jet streak within the subtropical jet moving over the islands may initiate severe turbulence later this evening.
Issued at 930 AM HST Thu Apr 2 2026
Weakening high pressure north of the islands will shift eastward over the next few days, leading to a weakening of the trade winds into the moderate to fresh range. Winds begin to veer east to southeast early next week ahead of a front approaching from the northwest. A Small Craft Advisory remains in effect for the typically windier waters around Maui County and the Big Island through tonight.
The short period northeast swell will continue a gradual decrease through the weekend as the northeast trade winds slowly diminish. As a result, surf along north- and east-facing shores surf will gradually decline through the rest of the week, but will still retain a little size and chop due to the moderate to locally breezy trades.
North- and west-facing shore surf will remain small to tiny until the arrival of a small, medium-period west-northwest (310 degree) swell Friday night and a second small, medium-period northwest (340 degree) swell late Saturday. A small to moderate medium-period west- northwest swell looks to arrive early next week and fills in by mid- week. Along south facing shores, expect small reinforcements to provide periods of small surf through the weekend until a slightly larger long period south swell fills in early next week.
Small Craft Advisory until 6 AM HST Friday for Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters- Maalaea Bay-Pailolo Channel.
