A strong surface high will continue to build north of the state through tonight, bringing windy trade winds through Saturday afternoon. A drier and more stable air mass will also settle in over the state. Trades will ease back to more typical summertime breezy levels Sunday into early next week as the high weakens. Isolated to scattered showers will mainly affect windward locations with dry weather expected for leeward areas. An increase chance of windward clouds and showers may develop by mid- week next week.
Breezy to windy trade winds will prevail through Saturday night. Occasional MVFR ceilings and visibilities within SHRA mainly across windward and upslope mauka exposures.
AIRMET TANGO is in effect for areas over and immediate S through W of all the Hawaiian Islands in response to windy trade winds. TANGO will likely continue through Saturday. No other AIRMETs are currently in effect.
Issued at 437 PM HST Fri Jul 31 2026
Windy trade winds are prevailing across the coastal waters this afternoon due to strong surface high pressure north of the state. These windy trades will persist through Saturday as the high strengthens and migrates south towards the islands. As a result, a Small Craft Advisory remains in effect for all nearshore waters. Seas my also exceed 10 feet during this time.
The current south swell will continue to fade through Saturday. This will be followed by the occasional small, medium period pulse of energy out of the southerly quadrant during the next several days.
A small, medium period easterly swell has been observed at nearshore buoys throughout the day. This swell, generated by Tropical Storm Genevieve in the East Pacific, along with increasing wind waves from the strong trades, is resulting in elevated surf along east- facing shores. East shore surf will peak this weekend (likely below advisory criteria) before gradually declining for several days thereafter.
Surf along north facing shores will remain flat to tiny. West facing shores will remain tiny as well, with the exception of those locations exposed to the south swell wrap.
Wind Advisory until 6 PM HST Saturday for Big Island Interior- Big Island North-Big Island South-Big Island Southeast-Big Island Summits-Kahoolawe-Kauai South-Kohala-Koolau Leeward-Lanai Leeward-Lanai Mauka-Lanai Windward-Maui Central Valley North- Maui Central Valley South-Maui Leeward West-Molokai Leeward South-Molokai North-Molokai West-South Haleakala-Waianae Mountains.
Small Craft Advisory until 6 PM HST Saturday 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.
