Hawaiians can expect a shift in weather patterns as we progress through the week, according to the latest update from the National Weather Service (NWS) in Honolulu. The forecast indicates light to moderate trade winds which should persist until Wednesday, brought on by a cold front passing to the north of the islands. This system is also likely to cause brief passing showers, particularly during late afternoon and early morning hours.
From Wednesday evening onward, a change is on the horizon as a stronger cold front approaches from the Central Pacific. The NWS statement explained that "colder air surrounding this system will drive the weakened ridge farther south, with the ridge axis hovering directly over the Hawaiian Islands from Thursday to Friday." Consequently, this will result in lighter east to southeasterly winds and decreased shower activity over most of the state. There's an exception on the southeast slopes of the Big Island where enhanced clouds and showers are expected over Kau and Puna Districts.
For those planning airborne travel, the light to moderate trade winds are a boon, promising to keep the flying conditions relatively stable for the next few days. While some patchy showers might lead to temporary marginal visual flight rules (MVFR), no AIRMETs are currently in effect, nor are any anticipated in the near term.
Marine activity will also feel the impact of the shifting weather dynamics. The weakening pressure gradient due to the retreating high will cause trade winds to subside as the week progresses. An upcoming North Pacific storm may stir up seas near Small Craft Advisory thresholds over Thanksgiving. "The tail end of this front will likely pass north of the island chain this time next week," the NWS report anticipates, potentially bringing in a substantial northwest swell that could enhance the surf conditions on north-facing shores.
In addition to the surf updates, the weather forecast reveals that fire weather concerns remain minimal. Humidity levels and winds are expected to stay below critical thresholds, with the usual passing showers aiding in keeping fire risks low. The height of the temperature inversion, which affects cloud formation and potential precipitation, is estimated to hover around 5,000 to 6,000 feet above areas near Maui and the Big Island today. Currently, there are no active watches, warnings or advisories in effect for Hawaii.
