Strong and gusty trades are expected on Monday with drier conditions across the state as a weak front passes near the state tonight. Trades should ease slightly on Tuesday, but breezy to locally strong trades will likely persist through rest of the week. Passing showers will ride in with the breezy trades throughout the week and will mainly be focused over windward and mauka areas.
Remnants of a frontal boundary are moving east through the eastern end of the state as drier air moves in from the west. Enough moisture remains from Molokai to the Big Island for scattered light to moderate showers, where brief MVFR conditions are expected. After midnight, showers will diminish and become focused over windward and mountain areas. Strengthening NE trade winds will become breezy to strong statewide overnight.
AIRMET Tango is currently in effect for moderate turbulence between FL210 and FL280 over Kauai and Oahu due to an upper level disturbance. This AIRMET will remain in effect through tonight, and likely be expanded to include other island and higher altitudes as the disturbance progresses through the island chain. AIRMET Tango is also in effect to cover moderate turbulence downwind of terrain statewide.
Issued at 357 PM HST Sun Nov 1 2026
A trough to the west of the islands will continue to drift southward as high pressure builds north of the islands bringing fresh to strong northeast winds across the region. The Small Craft Advisory (SCA) has been extended for all coastal waters through Monday night for a combination of mainly winds and seas above 10 feet in several exposed zones to the north-northwest swell. Moderate to locally strong northeast trade winds are expected through most of the forecast period.
Surf along north facing shores will continue to see High Surf Advisory level conditions through Monday with the swell peaking tonight before slowly dropping Monday. Offshore NDBC buoy 51101 continues to show long period energy in the 14 to 16 second bands. A High Surf Advisory (HSA) remains in effect for north and west facing shores of Kauai and Oahu and north facing shores of Maui County through Monday afternoon. Another advisory level northwest swell is possible Thursday into Friday, and moderate to large surf action appears to continue into the weekend.
The current moderate, medium period south swell will remain elevated this evening before declining on Monday. South shore surf will be tiny through much of the week with little southerly background energy reaching the islands. East- facing shores will see an increase in trade wind swell as strong northeast winds fill in Monday. Surf along east- facing shores will stay choppy as trades sustain through much of the week. A north- northeast trade wind swell (around 30 degrees) this week will reach moderate levels, but remains short- period, so the threat of harbor surges appears less likely.
High Surf Advisory until 6 PM HST Monday for Kauai East-Kauai North-Kauai Southwest-Koolau Windward-Maui Central Valley North- Maui Windward West-Molokai North-Molokai Windward-Niihau-Oahu North Shore-Waianae Coast-Windward Haleakala.
Small Craft Advisory until 6 AM HST Tuesday for Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters- Big Island Windward Waters-Kaiwi Channel-Kauai Channel-Kauai Leeward Waters-Kauai Northwest Waters-Kauai Windward Waters- Maalaea Bay-Maui County Leeward Waters-Maui County Windward Waters-Oahu Leeward Waters-Oahu Windward Waters-Pailolo Channel.
