![]() A storm passing around New Zealand through mid week may push a small, long period southwest swell far enough north to slightly lift south-facing shore surf by another foot early next week. Small, medium to slightly longer period southern swells will support small surf along many south-facing shores. No significant incoming swell will allow for the continuance of small surf along all shores this week. The Small Craft Advisory (SCA) for winds remains in effect for the typical windier waters surrounding Maui County and Big Island through Friday afternoon. The high is producing a tight enough pressure gradient down across the Central Pacific to maintain fresh to locally strong trade winds across the island's near and offshore waters the next several days. Surface high pressure generally centered north of the islands will remain nearly stationary through the remainder of the week. Low clouds should lift and clear most areas by afternoon. Conditions are expected to persist through at least mid-morning. Conditions are likely to persist through at least early evening.ĪIRMET Sierra for mountain obscuration is now in effect for north and east facing exposures of all all major islands. There may be brief periods of MVFR conds associated with this activity.ĪIRMET Tango remains in effect for occasional moderate low level turbulence to the lee of higher terrain. Clouds and scattered showers will mainly affect windward locations with isolated showers occasionally spilling over to leeward locations. ![]() Moderate to locally breezy trade winds will persist through today then gradually weaken on Thursday and Friday. The leeward side of the Big Island will see a diurnal pattern of mostly clear skies in the morning and then increasing clouds and scattered showers each afternoon before clearing again overnight. ![]() Limited showers riding in on the trades will focus over windward shores and slopes. Moderate to breezy east northeast trade winds will continue into the foreseeable future. This pattern will keep the state embedded within trade wind flow. Models show high pressure will remain parked far north of the islands through the week, while ridging aloft caps cloud and shower development. However, except for light showers passing through the Kauai and Kaiwi Channels, radar corroborates the effects of the capping inversion by showing little shower activity beneath this cloud cover.įorecast philosophy, like the synoptic setup, remains unchanged from last evening. The western edge of this cloud field covers most windward shores and slopes at this hour. Satellite loop shows a persistent broad field of stable broken to overcast low clouds extending from Hawaiian windward waters almost all the way to the mainland. A strong subsidence inversion near 5200 feet remains a feature, limiting cloud and shower development. Overnight soundings show a stable airmass and PW values ranging from 1.52 to 1.38 inches, close to normal for this time of year. High pressure far north of the main Hawaiian Islands continues to drive moderate to breezy trade winds across local waters this morning. Total rainfall will be light as a persistent subsidence inversion caps cloud and shower development. Chance of rain 20 percent.Įxpect our breezy trade wind weather to continue through the weekend, with clouds and showers favoring windward and mauka areas. Highs 79 to 86 near the shore to around 70 near 5000 feet. Thursday: Partly sunny in the morning then becoming mostly sunny. Highs around 64 at the visitor center to around 61 at the summit. Scattered showers in the morning, then isolated showers in the afternoon. Tonight: Partly cloudy with scattered showers. Lows around 75 near the shore to around 58 near 5000 feet. Highs 79 to 86 near the shore to around 71 near 5000 feet.
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