Moderate to breezy trades today will continue to weaken through Thursday, allowing winds to decrease to moderate levels for the remainder of the week. Passing showers will be carried in on the trade wind flow at times, mainly over windward and mauka areas. While details remain very uncertain, a wet pattern is expected to develop towards the middle of next week.
Generally VFR across all island hubs through the entire period. A weak upper low over the state with vicinity surface troughs will create just enough instability, in tandem with ample lower level moisture, to maintain chances of prevailing VCSH and/or TEMPO SHRA with MVFR for lower ceilings over more windward-exposed terminals such as PHLI and PHTO.
No AIRMETS are in effect.
A surface low pressure system far north of the Hawaiian Islands will dig southeast, becoming located due north of the state by Friday. This will push the high pressure that has brought consistent trades off to the east. Trades will weaken from Thursday into the weekend. Weak to moderate trades should continue into early next week, but low pressure developing west-southwest of the islands early next week will lead to a chance of southeast winds by Tuesday or Wednesday.
Tiny surf along north-facing shores will grow slightly tonight into Thursday and then remain steady Friday as a small northwest swell arrives. A slightly larger medium-period north-northwest swell will follow this weekend. A potential storm-force low developing north of Japan will likely send a larger long-period west-northwest swell early next week.
Surf along south-facing shores will remain small before a series of small to moderate, south-southwesterly swells boosts surf heights to near to above seasonal average this weekend into early next week.
East-facing shores will see trade wind swell decline through tonight as trade winds decrease, leading to a slight reduction in surf through the remainder of the week. A small, medium-period east swell originating from former Hurricane Trudy forecast to arrive Thursday may help maintain east-facing surf into the weekend.
None.
