Honolulu

Trade Winds and Scattered Showers Set To Characterize Honolulu Weather, NWS Issues Alerts for Mariners and Aviators

AI Assisted Icon
Published on August 18, 2024
Trade Winds and Scattered Showers Set To Characterize Honolulu Weather, NWS Issues Alerts for Mariners and AviatorsSource: Unsplash/ Joy Stamp

Honolulu residents and visitors can expect stable weather and breezy trade winds to be the norm for the coming days, though there’s a brief pause hinted early next week. According to the National Weather Service (NWS) in Honolulu, windward and mauka showers are anticipated to remain scattered across the state for the next couple of days. However, a tropical wave making its way from east to west is forecasted to marginally increase showery conditions through Monday night.

The weather shift is set to bring increased moisture in the air, subsequently allowing to more significantly develop cloud and shower coverage; with windward and mountain areas likely to be hit with the most rainfall. "Expect a brief trade wind speed decrease Monday and Monday night as a front far north of Hawaii displaces the high generating our trade flow," the National Weather Service notes. Stable moderate to locally breezy trade winds should resume dominance throughout the rest of the week as the disturbance passes.

Aviation interests should be on alert too. Bands of clouds accompanied by showers have been observed moving over the windward and mountain slopes of the islands this morning. The National Weather Service has thus issued an AIRMET Sierra, staying relevant for mountain obscurations for several territories, including Kauai, Oahu, Molokai, Maui, and the Big Island. Additionally, AIRMET Tango remains operative to signal moderate low-level turbulence statewide.

On the marine side, vessels operating in and around Maui County and the Big Island will have to adhere to a Small Craft Advisory that's projected to be in place much of the week due to fresh to strong easterly trade winds. "The Small Craft Advisory in place for the typical windier waters/channels around Maui County and the Big Island will persist for much of the week," and might likely expand to most waters come Wednesday, further emphasized the National Weather Service. Surfers, meanwhile, can expect surf along south facing shores to rise as a strong, long-period south-southwest swell that has been tracked by the Samoa buoy moves in. However, an easing trend is forecasted for east facing shores over the next days, though it may pick up again by midweek due to increasing trades locally and far east of the islands.

Lastly, there's a potential for minor tidal flooding to occur into Monday, but a gradual decrease in water levels is predicted through the week. With all these dynamic conditions at play, residents and visitors in Hawaii should stay informed on the latest weather updates and advisories as the week unfolds.