Honolulu residents can anticipate a mix of weather patterns in the coming days as breezy trade winds persist before giving way to lighter airflows and the possibility of enhanced afternoon showers. According to the National Weather Service in Honolulu, the prevailing trade winds will continue to carry moisture over the islands, ushering in clouds and showers that are expected to favor windward and mauka areas initially.
The weather situation is largely influenced by a high pressure system positioned northeast of the state, which has been the force behind the trade winds. Nevertheless, as we head into the midweek, a shift is expected—a strong low pressure system will displace the ridge, thereby decreasing the intensity of the winds. Light and variable winds are in the forecast, with interior and leeward areas predicted to experience clearer conditions in the mornings followed by potential afternoon showers.
From an aviation perspective, the strong trade winds are likely to continue at least through tomorrow. This setup maintains a stable trade wind inversion that traps moisture at lower altitudes, resulting in windward-focused light to moderate showers, particularly during late night and morning hours. However, AIRMET Tango advises of moderate turbulence below 8000 feet over and adjacent to high areas due to these persisting strong winds.
In terms of marine impact, the breezy conditions have triggered a Small Craft Advisory, in effect until 6 p.m. HST tomorrow, for several channels and coastal waters around Maui and the Big Island, reflecting the caution required when navigating these rougher sea areas. As the trade winds wane starting Tuesday, the advisory is set to lapse, aligning with the expected easing and subsequent disruption of wind patterns by midweek. Eastern shore surf, currently experiencing higher than normal levels due to the robust trades, is projected to subside later in the week, smoothing the way for water activities.
While north shore surf will remain minimal initially, a fresh northwest swell is predicted to elevate surf conditions on north and west-facing shores by tomorrow and Tuesday, potentially peaking at advisory level by Friday. Surfers frequenting south-facing shores can anticipate modest action, with surf expected to be low and steady into the latter part of next week. With various weather aspects to consider, Honolulu’s residents and visitors should stay updated on conditions to plan accordingly for both recreational and travel activities throughout the week.
