Today: Cloudy with scattered showers. Highs around 78 near the shore to 62 to 67 at 4000 feet. South winds up to 15 mph shifting to the southeast in the afternoon. Chance of rain 50 percent.
Tonight: Mostly cloudy. Scattered showers in the evening, then isolated showers after midnight. Lows 62 to 67 near the shore to around 51 at 4000 feet. Light winds. Chance of rain 30 percent.
Tuesday: Mostly cloudy. Isolated showers in the morning, then scattered showers in the afternoon. Highs around 78 near the shore to 62 to 67 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 50 percent.
Kona
Today: Mostly cloudy with scattered showers. Highs around 80 near the shore to around 63 near 5000 feet. Southwest winds up to 10 mph. Chance of rain 50 percent.
Tonight: Mostly cloudy with scattered showers in the evening, then partly cloudy after midnight. Lows 66 to 72 near the shore to around 52 near 5000 feet. North winds up to 10 mph. Chance of rain 30 percent.
ARTICLE CONTINUES BELOW AD
ARTICLE CONTINUES BELOW AD
Tuesday: Mostly sunny. Scattered showers in the afternoon. Highs around 80 near the shore to around 63 near 5000 feet. Northwest winds up to 15 mph. Chance of rain 30 percent.
Waimea
Today: Breezy. Cloudy with scattered showers. Highs around 76 near the shore to 63 to 72 near 3000 feet. West winds up to 20 mph. Chance of rain 50 percent.
Tonight: Mostly cloudy. Scattered showers in the evening, then isolated showers after midnight. Lows around 64 near the shore to 52 to 59 near 3000 feet. West winds up to 15 mph. Chance of rain 30 percent.
Tuesday: Mostly sunny with isolated showers in the morning, then partly sunny with numerous showers in the afternoon. Highs around 76 near the shore to 63 to 72 near 3000 feet. Northwest winds up to 10 mph. Chance of rain 70 percent.
Kohala
Today: Breezy. Cloudy with scattered showers. Highs around 76 near the shore to 63 to 72 near 3000 feet. West winds up to 20 mph. Chance of rain 50 percent.
ARTICLE CONTINUES BELOW AD
Tonight: Mostly cloudy. Scattered showers in the evening, then isolated showers after midnight. Lows around 64 near the shore to 52 to 59 near 3000 feet. West winds up to 15 mph. Chance of rain 30 percent.
Tuesday: Mostly sunny with isolated showers in the morning, then partly sunny with numerous showers in the afternoon. Highs around 76 near the shore to 63 to 72 near 3000 feet. Northwest winds up to 10 mph. Chance of rain 70 percent.
South Big Island
Today: Breezy. Mostly cloudy with scattered showers. Highs around 81 near the shore to around 67 near 5000 feet. Southwest winds up to 15 mph shifting to the west in the afternoon. Chance of rain 30 percent.
Tonight: Mostly cloudy. Breezy. Scattered showers in the evening, then isolated showers after midnight. Lows around 67 near the shore to around 51 near 5000 feet. Northwest winds 10 to 20 mph decreasing to up to 15 mph after midnight. Chance of rain 30 percent.
Tuesday: Mostly sunny with isolated showers. Highs around 81 near the shore to around 67 near 5000 feet. West winds up to 15 mph. Chance of rain 20 percent.
Puna
ARTICLE CONTINUES BELOW AD
Today: Cloudy with scattered showers. Highs around 78 near the shore to 62 to 67 at 4000 feet. South winds up to 15 mph shifting to the southeast in the afternoon. Chance of rain 50 percent.
Tonight: Mostly cloudy. Scattered showers in the evening, then isolated showers after midnight. Lows 62 to 67 near the shore to around 51 at 4000 feet. Light winds. Chance of rain 30 percent.
Tuesday: Mostly cloudy. Isolated showers in the morning, then scattered showers in the afternoon. Highs around 78 near the shore to 62 to 67 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 50 percent.
Waikoloa
Today: Breezy. Mostly cloudy with scattered showers. Highs around 82 near the shore to 64 to 69 above 4000 feet. West winds up to 20 mph. Chance of rain 50 percent.
Tonight: Mostly cloudy. Scattered showers in the evening, then isolated showers after midnight. Lows around 69 near the shore to 48 to 55 above 4000 feet. West winds up to 15 mph shifting to the south after midnight. Chance of rain 30 percent.
Tuesday: Mostly sunny with isolated showers. Highs around 82 near the shore to 64 to 69 above 4000 feet. West winds up to 10 mph. Chance of rain 20 percent.
Detailed Forecast
Synopsis
The wet pattern will continue over the eastern end of the state today as a cold front around Maui County continues eastward. Meanwhile, light to moderate west-northwest winds with drier air filling in from west to east will continue in the wake of the front as high pressure builds north of the state. Expect a more typical trade wind pattern to return with showers favoring windward and mauka locations Wednesday through the second half of the week.
Discussion
Updated to correct Watch/Warning/Advisory section.
The short-term guidance remains in good agreement and depicts the wet pattern persisting today over the eastern end of the state due to an upper trough to the north and its attendant surface front slowly advancing down the island chain. Radar imagery showed the back edge of the moderate showers with decent rainfall rates along/ahead of the front around Maui early this morning beginning to weaken. The latest rainfall summary depicted 24-Hr rainfall totals (through 2 AM HST) ranging from 3 to 5 inches on Kauai to 1 to 2 inches over Oahu and Maui County. In addition to the wet conditions, expect a wintry mix over the Big Island summits this morning with warning level westerly winds. Elsewhere, light to moderate west-northwest winds and drier conditions have begun to fill in from west to east. Dewpoints are forecasted to dip into the upper 50s to low 60s this afternoon, which will limit rainfall chances. The drying trend will continue over the eastern end of the state on Tuesday as high pressure builds to the north and the fronts slips east of the area. A return of a more typical trade wind pattern with clouds/showers favoring windward areas is anticipated Wednesday through the second half of the week.
Aviation
A quick-moving cold front will exit Hawaii to the northeast today. Clearing has already begun on Kauai. Frequent rain showers possibly mixed with isolated thunderstorms will persist across the central Islands this morning then taper off from the west in the afternoon. The front is weakening as it presses eastward, so the heaviest showers are not expected to reach the Big Island.
Meanwhile, east-southeast flow in advance of the front will carry repeated bands of light showers towards the Big Island with the greatest impact being felt along the windward coast south of Laupahoehoe tonight.
AIRMET Sierra for mountain obscuration is currently in effect for Maui and Molokai. Conditions are expected to improve in the early afternoon.
Moderate upper level turbulence could redevelop across the state later today as the upper level trough to the northwest of Hawaii digs southward.
Occasional light rime icing is expected in layered clouds above 15 kft. Conditions are expected to persist into the evening hours.
Marine
A front over Maui County will continue to push slowly eastward today and tonight, then stall out and slowly dissipate near the Big Island Tuesday and Wednesday. Light to moderate west to northwest winds will fill in behind the front today, with winds becoming rather light for Tuesday. Moderate north to northeast winds will fill in by late Wednesday, with fresh to strong trades expected Thursday and Friday as high pressure builds eastward well to the north of the state. The trades appear to ease a bit over the weekend as the high to the north weakens.
A Small Craft Advisory remains posted for the Alenuihaha Channel and leeward Big Island waters today due to funneling effects between Maui and the Big island. A SCA has also been issued for 10 foot seas around Kauai today.
Surf along north and west facing shores will trend up today as a northwest swell builds. Surf may flirt with low end advisory levels along north facing shores of the smaller islands late today and tonight, but should hold just below the advisory threshold of 15 feet. Surf along east facing shores will remain very small through the week. Small, medium to long period south swells will keep some small surf rolling into south facing shores through the week.
HFO Watches/Warnings/Advisories
Wind Advisory until 6 AM HST Tuesday for Haleakala Summit.
High Wind Warning until 6 AM HST Tuesday for Big Island Summits.
Winter Weather Advisory until 11 AM HST this morning for Big Island Summits.
Small Craft Advisory until 6 PM HST this evening for Kauai Northwest Waters, Kauai Windward Waters, Kauai Leeward Waters, Alenuihaha Channel, Big Island Leeward Waters.
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