FXHW60 PHFO 021317 AFDHFO Area Forecast Discussion National Weather Service Honolulu HI 317 AM HST Wed Jul 2 2025 .SYNOPSIS... An exiting trough will help the trades stregthen through the remainder of the week. Mostly dry conditions expected with any incoming showers expected to impact the windward and mauka areas overnight into the early morning hours. && .DISCUSSION... Looking and radar and satellite we have showers moving across the islands. While trades are light right now expect them to stregthen today through the remainder of the week due to an exiting trough. Mostly dry conditions are expected. Any showers that do ride in with the trades will be light and confined to the windward and mauka slopes. Trades should strengthen further Friday into next week, becoming breezy to locally strong at times. The combination of drier conditions with stronger trades could elevate fire weather concerns. While this is still several days out, and confidence remains low at the moment, conditions will be monitored leading up to the weekend and into next week. && .AVIATION... Moderate to locally breezy trades. Low cigs and SHRA will favor windward and mauka areas. MVFR conds possible in SHRA otherwise VFR prevails. AIRMET Sierra is in effect for mtn obsc abv 020 for windward portions of all islands. Conds should improve by mid morning. && .MARINE... Weak trough to the north of the state continues to maintain gentle to locally fresh easterly trade winds across the state through Thursday. High pressure far north of the state will strengthen Friday into the weekend with fresh to locally strong trade winds expected by Saturday. Winds are expected to further strengthen early next week with widespread strong trade winds possible. A Small Craft Advisory (SCA) could return as early as Thursday, but more likely on Friday for the windier waters and channels around Maui County and the Big Island. The current south swell peaked and will slowly decline through the rest of the week. Surf heights should still hold near the summer time average (5 feet) till around Thursday before dropping Friday into the weekend. Along east facing shores, surf will continue to remain smaller than average due to the lack of strong trades. An increase of rough and choppy surf is expected this weekend into next week as the trade winds strengthen. No significant swells are expected through next week. && .HFO WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION...Walsh AVIATION...Walsh MARINE...Shigesato