Trade winds will be with us through the weekend. There will be the usual showers, mainly windward and mauka. Things start to change Monday as our low level flow will shift to southeasterly, then becoming southerly by Wednesday. Moisture will increase and the potential for heavy rain and flooding may return Tuesday night into Wednesday night, perhaps lasting several days.
Issued at 824 PM HST Thu Apr 2 2026 Moderate trade winds will persist through the 24 h period, with brief showers favoring windward areas overnight through the early morning periods. These showers could bring periods of MVFR CIGS/VSBYS. Otherwise, VFR conditions will prevail across the state.
AIRMET TANGO remains in effect across the state for moderate turbulence between FL280 and FL380. This will likely persist into Friday.
Issued at 824 PM 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 Friday morning, and will likely be extended through tomorrow afternoon. Periods of locally strong winds are possible for the windier waters through tomorrow afternoon.
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. A small, medium period northeast swell is also possible mid-next week.
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. However, veering local winds may lead to increasingly choppy conditions through the week.
Small Craft Advisory until 6 AM HST Friday for Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters- Maalaea Bay-Pailolo Channel.
