Area Forecast Discussion
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
620 FXHW60 PHFO 090106 AFDHFO Area Forecast Discussion National Weather Service Honolulu HI 306 PM HST Sat Jun 8 2024 .SYNOPSIS... Gradually strengthening trades become moderate by tomorrow and breezy by the middle of next week as dry conditions persist. && .DISCUSSION... Partly cloudy skies this afternoon as a very dry and stable airmass characterized by an inversion height around 4kft remains entrenched over the state. Trades strengthen to moderate by tomorrow as the upper ridge centered directly overhead begins to shift north and east through early next week. This in turn allows the trade wind belt to strengthen and rebound northward over the area bringing about a return to a more typical breezy trade wind pattern by the middle of next week. && .AVIATION... Trade winds will have become locally breezy this afternoon and will continue to gradually strengthen into Sunday. Shower activity will remain limited with dry air and high pressure in place over the region. A strong inversion will keep any ceilings quite low, allowing for periods of MVFR conditions. Otherwise, VFR conditions will prevail. No AIRMETs are currently in effect, nor expected through tonight. && .MARINE... Elevated surf will continue along S facing shores for the next week. A fresh pulse of long-period SSW swell will arrive Sunday into Monday, and a High Surf Advisory remains posted for S facing shores. This new swell will gradually diminish through midweek, but additional pulses of S swell will arrive into next weekend. Small N and NW swells will support small surf along N facing shores the next couple of days. Tiny surf will prevail along E facing shores, with a slight upward trend by midweek. A surface ridge just N of the islands will move N and strengthen through Monday, with trade winds strengthening to climatological (moderate to locally strong) speeds. Little change is expected thereafter. A Small Craft Advisory (SCA) has been issued for waters around Maui County and the Big Island. && .HFO WATCHES/WARNINGS/ADVISORIES... High Surf Advisory until 6 PM HST Monday for Niihau-Kauai Leeward-Waianae Coast-Kahoolawe-Maui Leeward West-Kona-Kauai South-East Honolulu-Honolulu Metro-Ewa Plain-Molokai West- Molokai Leeward South-Lanai Leeward-Lanai South-Maui Central Valley South-South Maui/Upcountry-South Haleakala-Big Island South-Big Island Southeast. Small Craft Advisory until 6 AM HST Tuesday for Maalaea Bay- Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters. && $$ DISCUSSION...JVC AVIATION...TS MARINE...Birchard