A new low will move the trough tonight and Saturday, potentially bringing another bout of high clouds and increased instability, although diminished PWAT and winds may prevent an increase in showers. Additionally, high clouds are expected to remain fairly this over most of the state today. The semi-permanent trough aloft is not expected to move much over the next several days, but an embedded low will move E away from the islands today, leading to some short term stabilization of the island atmosphere. Models have been trending toward a lighter wind solution for early next week, with the return of breezy trades likely delayed until midweek. Nighttime land breezes over leeward areas will lead to mostly clear nights and mornings, giving way to onshore-flowing sea breezes in the afternoons that will fuel clouds and a few showers that will linger until sunset. With the light trades and drier air mass, windward areas will see limited showers after this morning, mainly during nights and mornings. Trade winds will weaken in response, becoming quite light on Sunday and Monday. Meanwhile, a pair of low pressure systems passing N of the islands over the next several days will weaken the trade-wind-supporting ridge, while also pushing it closer to the islands. Satellite shows very little in the way of low clouds immediately upstream of the islands.Īlthough showers have been fairly active in portions of the state the last couple of days, a drier air mass will bring lower PWAT values from later today into the weekend. Fewer showers are noted over Maui County and the Big Island. Radar shows scattered to numerous showers around Kauai and Oahu (where showers have been most active overnight), with some small heavy cores noted. Light to moderate trade winds at the surface are being supported by a weakening ridge well N of the islands, with clusters of showery low clouds randomly embedded. This trough continues to destabilize the island atmosphere, with morning soundings showing a somewhat moist and unstable profile. A low within the trough brought strong winds to the summits of Mauna Kea and Mauna Loa yesterday, but winds have diminished below Wind Advisory speeds. The jet lies on the S side of an ENE-WSW oriented nearly stationary trough aloft that has an axis just N of the islands along ~25N. Mid- and high-level clouds of varying thicknessES are over the islands this morning, moving rapidly ENE within the subtropical jet. Periods of high clouds will continue on and off through the weekend. Sea breezes will promote afternoon cloud development over leeward areas, also delivering just a few showers. The light trade winds will deliver limited clouds and showers to windward areas, mainly during nights and mornings. Light to moderate trade winds will become quite light over the weekend and early next week, with a mostly dry pattern developing. Highs around 84 near the shore to 66 to 72 above 4000 feet. Lows 67 to 73 near the shore to 49 to 56 above 4000 feet. Highs around 85 near the shore to 67 to 73 above 4000 feet. Highs around 80 near the shore to 65 to 70 at 4000 feet. Scattered showers in the morning, then isolated showers in the afternoon. East winds 10 to 15 mph decreasing to up to 15 mph in the afternoon. Highs around 83 near the shore to around 69 near 5000 feet. Lows around 67 near the shore to around 52 near 5000 feet. Highs around 84 near the shore to around 70 near 5000 feet. East winds around 10 mph in the morning becoming light. Highs around 79 near the shore to 65 to 75 near 3000 feet. Lows around 65 near the shore to 53 to 60 near 3000 feet. Tonight: Mostly cloudy with scattered showers. Highs around 79 near the shore to 66 to 76 near 3000 feet. Highs 80 to 85 near the shore to around 65 near 5000 feet. Lows 66 to 73 near the shore to around 53 near 5000 feet. Light winds becoming west around 10 mph in the afternoon. Highs 81 to 86 near the shore to around 66 near 5000 feet. Lows 63 to 68 near the shore to around 52 at 4000 feet. Highs around 80 near the shore to around 68 at 4000 feet.
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