Today: Partly sunny with scattered showers. Highs around 81 near the shore to around 68 at 4000 feet. Southeast winds up to 15 mph. Chance of rain 50 percent.
Tonight: Partly cloudy. Isolated showers in the evening, then scattered showers after midnight. Lows 62 to 67 near the shore to around 52 at 4000 feet. South winds up to 10 mph in the evening becoming light. Chance of rain 30 percent.
Friday: Mostly sunny early in the morning then becoming partly sunny. Scattered showers. Highs around 82 near the shore to 65 to 70 at 4000 feet. East winds up to 10 mph. Chance of rain 50 percent.
Kona
Today: Mostly sunny in the morning then becoming partly sunny. Scattered showers. Highs around 84 near the shore to around 70 near 5000 feet. Northwest winds up to 10 mph. Chance of rain 40 percent.
Tonight: Partly cloudy with isolated showers. Lows 66 to 71 near the shore to around 50 near 5000 feet. Light winds. Gusts up to 25 mph in the evening. Chance of rain 20 percent.
ARTICLE CONTINUES BELOW AD
ARTICLE CONTINUES BELOW AD
Friday: Mostly sunny with isolated showers. Highs around 84 near the shore to around 70 near 5000 feet. Light winds. Chance of rain 20 percent.
Waimea
Today: Breezy. Mostly sunny with isolated showers in the morning, then partly sunny with scattered showers in the afternoon. Highs around 80 near the shore to 70 to 77 near 3000 feet. West winds up to 10 mph shifting to the northeast up to 25 mph in the afternoon. Chance of rain 50 percent.
Tonight: Partly cloudy with isolated showers. Lows 62 to 67 near the shore to 50 to 58 near 3000 feet. Light winds becoming south up to 10 mph after midnight. Chance of rain 20 percent.
Friday: Mostly sunny with isolated showers. Highs around 81 near the shore to 70 to 77 near 3000 feet. Southeast winds up to 10 mph shifting to the northeast in the afternoon. Chance of rain 20 percent.
Kohala
Today: Breezy. Mostly sunny with isolated showers in the morning, then partly sunny with scattered showers in the afternoon. Highs around 80 near the shore to 70 to 77 near 3000 feet. West winds up to 10 mph shifting to the northeast up to 25 mph in the afternoon. Chance of rain 50 percent.
ARTICLE CONTINUES BELOW AD
Tonight: Partly cloudy with isolated showers. Lows 62 to 67 near the shore to 50 to 58 near 3000 feet. Light winds becoming south up to 10 mph after midnight. Chance of rain 20 percent.
Friday: Mostly sunny with isolated showers. Highs around 81 near the shore to 70 to 77 near 3000 feet. Southeast winds up to 10 mph shifting to the northeast in the afternoon. Chance of rain 20 percent.
South Big Island
Today: Breezy. Partly sunny with scattered showers. Highs around 84 near the shore to around 71 near 5000 feet. East winds 10 to 25 mph. Chance of rain 40 percent.
Tonight: Breezy. Partly cloudy with isolated showers. Lows around 68 near the shore to around 49 near 5000 feet. Northeast winds up to 25 mph decreasing to up to 10 mph after midnight. Chance of rain 20 percent.
Friday: Mostly sunny with isolated showers early in the morning, then partly sunny with scattered showers in the late morning and afternoon. Highs around 83 near the shore to around 70 near 5000 feet. East winds up to 10 mph. Chance of rain 50 percent.
Puna
ARTICLE CONTINUES BELOW AD
Today: Partly sunny with scattered showers. Highs around 81 near the shore to around 68 at 4000 feet. Southeast winds up to 15 mph. Chance of rain 50 percent.
Tonight: Partly cloudy. Isolated showers in the evening, then scattered showers after midnight. Lows 62 to 67 near the shore to around 52 at 4000 feet. South winds up to 10 mph in the evening becoming light. Chance of rain 30 percent.
Friday: Mostly sunny early in the morning then becoming partly sunny. Scattered showers. Highs around 82 near the shore to 65 to 70 at 4000 feet. East winds up to 10 mph. Chance of rain 50 percent.
Waikoloa
Today: Sunny in the morning, then partly sunny with scattered showers in the afternoon. Highs around 83 near the shore to around 69 above 4000 feet. Light winds becoming west up to 10 mph in the afternoon. Chance of rain 50 percent.
Tonight: Mostly clear. Isolated showers in the evening. Lows around 69 near the shore to 48 to 53 above 4000 feet. Light winds. Chance of rain 20 percent.
Friday: Mostly sunny. Isolated showers in the late morning and afternoon. Highs around 83 near the shore to 66 to 71 above 4000 feet. Light winds. Chance of rain 20 percent.
Detailed Forecast
Synopsis
A front will approach the state from the northwest, causing local winds to weaken and veer to southeasterlies. The front will stall near the western end of the state Friday into Saturday, increasing shower chances for Kauai and possibly Oahu. The front will wash out by Sunday. Another front will approach the islands near the end of the forecast period.
Discussion
A high far northeast of the main Hawaiian Islands continues to drive moderate to breezy trade flow across local waters this morning. However, the high's influence is waning as it moves eastward. Low clouds embedded within trade wind flow will continue to affect windward areas through this morning, with a few showers expected to spread to leeward areas of the smaller islands from time to time.
As the high moves farther away today, a front will approach from the northwest and local winds will gradually weaken and veer to southeasterlies. This afternoon, veering flow will cause showers to favor southeastern districts of the Big Island, while the remaining islands remain drier within the Big Island rain shadow. Expect development of localized diurnal land and sea breezes.
Models show the front will stall and weaken near the western end of the state from late Friday into Saturday. This has the potential to increase showers across Kauai and possibly Oahu throughout this period. The front wash out by Sunday. A brief stable and dry weather pattern will return, with light to moderate easterly trade winds expected from Sunday to Monday. Another front will approach the islands from the northwest Tuesday into Wednesday of next week.
Aviation
Trade winds continue to weaken this morning and has veered more southeasterly overnight due to a weak front approaching the area. Scattered showers this morning will favor north through southeast sections of the islands this morning. As the day progresses, the light to moderate east to southeast trades will give way to sea breezes, which will increase shower activity across interior and leeward areas during the afternoon. For the most part, VFR conditions are expected, but brief MVFR ceilings and visibilities are possible within showers this afternoon.
Marine
High pressure far northeast of Hawaii and will continue to move eastward as a weakening front approaches the northwest coastal waters late this week. Fresh to locally strong southeast winds will prevail today. A Small Craft Advisory (SCA) has been issued for select waters around Maui County and the Big Island due to the acceleration of the southeast flow. Winds are forecast to fall below SCA level by tonight, then become light and variable over much of the island chain Friday through Saturday, as the weakening front nears Kauai.
Current north-northwest swell continues to fade, as an overlapping small medium-period north swell will fill in today keeping surf heights elevated. A new moderate medium- period northwest swell will boost north and west facing shores as it builds in Friday afternoon into the weekend potentially reaching High Surf Advisory levels as it peaks on Saturday.
Surf along east facing shores will be rough and choppy today especially over the eastern half of the state, due to the stronger winds. A downward trend is expected through the second half of the week as the winds diminish. Small surf will continue along south facing shores with only small background swell energy in the forecast.
HFO Watches/Warnings/Advisories
Small Craft Advisory until 6 PM HST this evening for Maui County Windward Waters, Alenuihaha Channel, Big Island Windward Waters, Big Island Leeward Waters.
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