VFR conditions are expected to prevail, with some brief MVFR conditions possible in passing clouds and showers over windward and mauka areas.ĪIRMET Tango continues for mechanical turbulence to the lee of the mountains of Maui and the Big Island. The strongest winds will be over the eastern end of the state. Shower activity will decrease into brief showers over windward areas, favoring the overnight to early morning hours.Įasterly trade winds have increased overnight, and are expected to remain locally strong into Friday. Expect decreasing trade wind speeds into the moderate range with more stable conditions as the ridge axis moves closer to the state. Long range guidance shows the forward motion of the frontal cloud band stalling out just north of the state by Wednesday with little impact on the precipitation side of the forecast. Monday through Wednesday, the high pressure ridge moves closer to the islands and weakens as a weakening cold front approaches from the north. ![]() At this height passing showers over windward and mountain areas will remain in the forecast with lower shower activity over the typically drier leeward sections of each island. Stability wise, temperature inversion heights will lower a bit today ranging from 6,000 to 8,000 feet. Some wind favored areas over Maui and Hawaii Counties are approaching Wind Advisory thresholds today and may exceed these advisory thresholds from Friday to Saturday. Easterly trade winds will continue to blow across the region in the breezy to locally windy range into Sunday. At this level clouds will be deep enough for scattered to numerous trade wind showers in the early morning hours over windward and mountain areas.Ī strong high pressure system will remain in place north of the state through the weekend. Upper air balloon soundings from 2 AM HST this morning at Hilo and Lihue show trade wind temperature inversion heights around 7,000 to 9,000 feet. Local radar imagery this morning continues to show passing showers over eastern slopes of each island. Trade wind speeds will strengthen through Friday as the subtropical ridge builds in north of the island chain. This morning's satellite picture shows more stable stratocumulus just east of Hawaii drifting towards the islands on the trade winds. Shower trends will decrease as the frontal band stalls out north of the state and the ridge moves closer to the islands. Trade wind speeds will decrease from Monday through Wednesday as a weakening cold front approaches the islands from the north. Leeward areas will see drier weather conditions. Passing showers are forecast through Sunday mainly over the windward and mountain areas, favoring the overnight to early morning hours. Easterly winds in the breezy to locally windy range are expected to last through the weekend. Trade winds will continue to strengthen through Friday as the high pressure ridge builds in north of the Hawaiian Islands. Chance of rain 20 percent.įriday: Breezy. Northeast winds 10 to 20 mph.įriday: Mostly sunny. Highs 77 to 82 near the shore to 59 to 64 near 5000 feet. Highs around 58 at the visitor center to around 53 at the summit. Scattered showers in the morning, then isolated showers in the afternoon. Chance of rain 50 percent.įriday: Mostly sunny. Lows around 42 at the visitor center to around 36 at the summit. Highs around 60 at the visitor center to around 54 at the summit. ![]() Chance of rain 50 percent.įriday: Breezy. Lows 64 to 69 near the shore to around 49 near 5000 feet. Highs 78 to 83 near the shore to 59 to 64 near 5000 feet. Northeast winds up to 25 mph increasing to 10 to 25 mph in the afternoon. ![]() East winds 20 to 30 mph decreasing to 10 to 30 mph in the afternoon. Mostly cloudy with scattered showers in the evening, then partly cloudy with isolated showers after midnight.
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