Breezy to locally windy trades will weaken slightly through Monday, then hold at moderate strength through the remainder of the week. Showers will favor windward and mauka areas, with little rainfall over most leeward sections.
Breezy to locally windy trades will continue today. A band of increased moisture is currently providing an uptick in low clouds and showers to mainly windward and mauka areas with intermittent MVFR and even brief IFR conditions observed. These clouds and showers should clear out by late morning, leaving VFR conditions to generally prevail. As seen upstream on satellite, drier air will filter in and sparser clouds and isolated to scattered showers can be expected to move in on the breezy trades through the rest of the period.
AIRMET Sierra is in effect for mountain obscuration for all windward areas this morning, with conditions expected to improve by late morning.
AIRMET Tango remains in effect for low-level turbulence over and downwind of terrain as a result of the stronger trades, which is expected to continue into at least Sunday.
Strong high pressure north of the Hawaiian Islands will maintain strong to near gale force trade winds today. The high will begin a weakening trend tonight, then shift northeast of the state during the first half of next week. Strong trade winds will gradually trend down to moderate to locally strong speeds by Tuesday and then hold through the end of next week.
A Small Craft Advisory (SCA) for all Hawaiian Coastal Waters remains in effect through early Sunday morning to account for both wind and seas. The SCA conditions will likely continue for locally windier waters through the first half of next week.
Choppy and rough surf can be expected along east-facing shores through the rest of the weekend. Based on nearshore buoy observations this morning, surf along east-facing shores is expected to remain just below advisory thresholds through the weekend. It will then trend down next week as trade wind speeds gradually ease locally and upstream.
Surf along north-facing shores will see a small, moderate period north-northwest swell fill in today and peak by tonight. This will provide a small boost in surf heights along north and west facing shores through Sunday. A slightly larger northwest swell will fill in Tuesday and peak Wednesday, which could bring near to slightly above average summertime surf for north and west facing shores.
A small, long period south swell will peak today, boosting surf to near to slightly above average. This swell will begin to fade on Sunday. Another similar south swell will slowly fill in Tuesday, peak Wednesday, then slowly fade during the second half of next week.
Wind Advisory until 6 PM HST this evening for Big Island North- Big Island South-Big Island Southeast-Kohala-Maui Central Valley North-Maui Central Valley South-Maui Leeward West-Maui Windward West-South Haleakala.
Small Craft Advisory until 6 AM HST Sunday for Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters- Big Island Windward Waters-Kaiwi Channel-Kauai Channel-Kauai Leeward Waters-Kauai Northwest Waters-Kauai Windward Waters- Maalaea Bay-Maui County Leeward Waters-Maui County Windward Waters-Oahu Leeward Waters-Oahu Windward Waters-Pailolo Channel.
