The National Weather Service in Honolulu provides an update on the weather forecast for the Hawaiian Islands, expecting light and variable winds to dominate the region today due to a high-pressure ridge. The onset of sea breezes across all islands today will be briefly replaced by easterly trade winds come Monday, as a weak cold front starts to stall out near Kauai. Shower activity is anticipated to increase for the northwest islands starting Sunday night through Monday as this front slowly dissipates, according to NWS.
According to the same weather service discussion, tonight will see the cold front moving into Kauai and halting between Kauai and Oahu before it starts to dissolve through the following day. "Expect increasing clouds and shower trends over Kauai and Niihau later tonight, with similar trends spreading to Oahu by Monday morning," according to the National Weather Service, hinting at a potentially wet start to the week for these areas. While the American GFS model predicts the frontal cloud band will stall near Kauai and Oahu, the European Model suggests the front might push just a little further south before breaking into a surface trough, so keep to watch out for the mercurial tropical weather.
For the aviation sector, the Honolulu forecast assures that VFR conditions will largely prevail over the next 24 hours. However, an increase in showers due to the approaching front may lead to temporary MVFR ceilings and visibility, specifically over northern and windward-facing slopes of Kauai and Oahu, triggering a consideration for an AIRMET Sierra for mountain obscuration late tonight into Monday.
The marine update points out light winds ahead of an incoming front, with sea breezes developing during the day before trading places with land breezes at night. Surf conditions are noted to be dynamic over the coming days, with the most significant swell expected later in the week. "This late week swell is forecast to peak near the High Surf Warning thresholds for north and west facing shores," a statement that beckons a cautionary note for both casual beachgoers and the devout surfing community. It's also worth noting the issued advisory for possible ashfall affecting parts of the Big Island till this evening, according to the National Weather Service.
