HONOLULU (KHON2) – Trade winds will become breezy on Saturday, and the stable, gusty and rather dry conditions will persist through at least Tuesday.
Trades will increase as surface high pressure far northeast of Hawaii strengthens to around 1032 mb.
A mid level ridge will continue to build overhead and push the inversion to as low as 5,000 feet.
The interaction of the breezy trade wind flow with the islands should generate wind gusts around 40 mph over and downwind of terrain, though isolated areas on the Big Island and Maui County could approach Wind Advisory criteria at times.
Guidance shows no distinct organized areas of moisture as precipitable water stays below seasonal average.
This should result in modest windward rainfall and aside from scattered afternoon and evening showers on the Kona slopes of the Big Island, dry leeward conditions.
A slight decrease in trade winds is expected Wednesday.
Breezy, gusty, and rather dry conditions will develop on Saturday and persist into early next week.
Relative humidity at lower leeward elevations will likely fall to around 45 percent each afternoon, and with the inversion dropping to as low as 5,000 feet winds will become gusty over and downwind of terrain.
This will result in near critical fire weather conditions over dry leeward areas at times, though no headlines (watches or warnings) are due since the Keetch Byram Drought Index will remain below the 600 threshold at Honolulu.
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