Honolulu residents can expect a continuation of moderate trade winds and stable conditions today, with showers concentrating primarily on the windward and mauka areas. According to a recent weather update from the National Weather Service (NWS) Honolulu, the situation is set to shift tonight as a cold front, along with an upper level feature, advances from the north, bringing potential unsettled weather starting Sunday, particularly impacting Kauai.
The NWS forecasts indicate that trade winds will give way to a weakening pressure system as the week progresses. "Trades will weaken tonight as a front and its associated upper level feature approach from the north," as per the NWS Honolulu. Residents near Kauai should prepare to potentially embrace a more pronounced increase in shower activity. This meteorological shift will also likely lead to changes in aviation and marine conditions over the weekend.
Aviation protocols could change too with the incoming weather. While no AIRMETs are in effect now, there's no telling when they might need to be issued as the front approaches Kauai tomorrow afternoon and evening. Surfers, meanwhile, are in for a treat, as north facing shores will likely experience high surf from swelling waves, prompting a High Surf Advisory into Sunday for several regions including Niihau and Oahu North Shore.
Those at sea should also take heed. Local mariners can anticipate strong breezes to steadily grow, especially in the northwest offshore waters as a front approaches. "The front is expected to stall and then get pushed to the west as high pressure builds back in by Monday," as stated by the NWS, signaling a return to moderate trade winds in the following days. For those concerned about fire risks, forecasts suggest decreased concerns, with higher humidity levels and dropping trade wind speeds helping to suppress critical fire weather conditions into next week.
While shifts in Hawaii's weather may not drastically alter local life, these changes bear monitoring. The High Surf Advisory from noon today to 6 AM HST tomorrow, covers a swath of shoreline communities, and officials urge caution.
