Today: Mostly sunny with isolated showers in the morning, then mostly cloudy with scattered showers in the afternoon. Highs around 79 near the shore to 63 to 68 at 4000 feet. Southwest winds up to 10 mph shifting to the southeast in the afternoon. Chance of rain 40 percent.
Tonight: Mostly cloudy in the evening then becoming partly cloudy. Isolated showers. Lows around 64 near the shore to around 50 at 4000 feet. Light winds. Chance of rain 20 percent.
Sunday: Mostly sunny with isolated showers in the morning, then mostly cloudy with scattered showers in the afternoon. Highs around 79 near the shore to 63 to 68 at 4000 feet. East winds up to 10 mph. Chance of rain 50 percent.
Kona
Today: Mostly sunny in the morning, then mostly cloudy with scattered showers in the afternoon. Highs 78 to 83 near the shore to around 69 near 5000 feet. Northeast winds up to 10 mph shifting to the northwest in the afternoon. Chance of rain 40 percent.
Tonight: Mostly cloudy with isolated showers in the evening, then mostly clear after midnight. Lows 64 to 69 near the shore to around 51 near 5000 feet. Light winds. Chance of rain 20 percent.
ARTICLE CONTINUES BELOW AD
ARTICLE CONTINUES BELOW AD
Sunday: Sunny in the morning, then mostly cloudy with scattered showers in the afternoon. Highs 78 to 83 near the shore to around 69 near 5000 feet. Southwest winds up to 10 mph shifting to the west in the afternoon. Chance of rain 40 percent.
Waimea
Today: Mostly sunny in the morning, then mostly cloudy with scattered showers in the afternoon. Highs around 78 near the shore to 69 to 76 near 3000 feet. Light winds. Chance of rain 40 percent.
Tonight: Partly cloudy with isolated showers. Lows around 63 near the shore to 49 to 57 near 3000 feet. Light winds. Chance of rain 20 percent.
Sunday: Mostly sunny with isolated showers in the morning, then mostly cloudy with scattered showers in the afternoon. Highs around 78 near the shore to 69 to 76 near 3000 feet. Northeast winds up to 10 mph. Chance of rain 50 percent.
Kohala
Today: Mostly sunny in the morning, then mostly cloudy with scattered showers in the afternoon. Highs around 78 near the shore to 69 to 76 near 3000 feet. Light winds. Chance of rain 40 percent.
ARTICLE CONTINUES BELOW AD
Tonight: Partly cloudy with isolated showers. Lows around 63 near the shore to 49 to 57 near 3000 feet. Light winds. Chance of rain 20 percent.
Sunday: Mostly sunny with isolated showers in the morning, then mostly cloudy with scattered showers in the afternoon. Highs around 78 near the shore to 69 to 76 near 3000 feet. Northeast winds up to 10 mph. Chance of rain 50 percent.
South Big Island
Today: Mostly sunny in the morning, then partly sunny with scattered showers in the afternoon. Highs around 81 near the shore to around 70 near 5000 feet. North winds up to 10 mph shifting to the southeast in the afternoon. Chance of rain 40 percent.
Tonight: Mostly cloudy in the evening then becoming partly cloudy. Isolated showers. Lows around 66 near the shore to around 50 near 5000 feet. Light winds. Chance of rain 20 percent.
Sunday: Mostly sunny with isolated showers in the morning, then partly sunny with scattered showers in the afternoon. Highs around 81 near the shore to around 70 near 5000 feet. East winds up to 10 mph. Chance of rain 40 percent.
Puna
ARTICLE CONTINUES BELOW AD
Today: Mostly sunny with isolated showers in the morning, then mostly cloudy with scattered showers in the afternoon. Highs around 79 near the shore to 63 to 68 at 4000 feet. Southwest winds up to 10 mph shifting to the southeast in the afternoon. Chance of rain 40 percent.
Tonight: Mostly cloudy in the evening then becoming partly cloudy. Isolated showers. Lows around 64 near the shore to around 50 at 4000 feet. Light winds. Chance of rain 20 percent.
Sunday: Mostly sunny with isolated showers in the morning, then mostly cloudy with scattered showers in the afternoon. Highs around 79 near the shore to 63 to 68 at 4000 feet. East winds up to 10 mph. Chance of rain 50 percent.
Waikoloa
Today: Mostly sunny in the morning, then mostly cloudy with scattered showers in the afternoon. Highs around 80 near the shore to 64 to 71 above 4000 feet. South winds up to 10 mph shifting to the northwest in the afternoon. Chance of rain 40 percent.
Tonight: Partly cloudy. Isolated showers in the evening. Lows around 68 near the shore to 46 to 54 above 4000 feet. Light winds. Chance of rain 20 percent.
Sunday: Sunny in the morning, then mostly cloudy with scattered showers in the afternoon. Highs around 80 near the shore to 64 to 71 above 4000 feet. Southwest winds up to 10 mph shifting to the northwest in the afternoon. Chance of rain 50 percent.
Detailed Forecast
Synopsis
Warm and humid conditions with light and variable winds are expected through at least the first half of the upcoming week as a series of fronts pass north of the islands. Clouds and showers will favor interior and mauka locations through the afternoon and early evening periods. Otherwise, rainfall should remain limited.
Discussion
Guidance remains persistent and continues to advertise the active pattern holding over the northern Pacific, featuring a series of cold fronts passing the area to the north. The subtropical ridge has responded and shifted southward over the islands, which supports the ongoing land and sea breeze regime persisting through much of next week. Although the bulk of the weather associated with these passing systems will remain north of the islands, some moisture clipping the western end of the state along the tail-end of the passing fronts may act to enhance afternoon showers – mostly over interior and mauka locations.
The first front in the series is expected to move into the area today. PWs climbing toward 1.5″ along with a shortwave trough skirting the area to the north will support scattered afternoon showers today. A similar scenario is expected Tuesday through Wednesday as the next front moves into the area. Otherwise, a quiet pattern (minimal rainfall accumulations expected) with unseasonably warm and humid conditions are anticipated (dewpoints hovering in the mid to upper 60s).
Aviation
Current radar trends and satellite data indicate showers, along with a narrow band of lower clouds, stretching from Oahu to Maui Islands. Expect this area of showers to increase in areal coverage slightly through the morning, with some MVFR cigs and potential localized IFR cigs developing in heavier showers.
Otherwise, a weak wind pattern will continue over much of the state through the weekend. The weaker winds will allow for diurnal sea breeze circulation cycle during the afternoon enhancing lower clouds and isolated showers for interior sections and along slopes, while land breeze development during the evening will help diminish showers and clouds.
Currently no AIRMETs are in effect. However AIRMET Tango could be required later this morning for a potential period of mod upper lvl turb.
Marine
A cold front stalling over the northwest waters today will keep the surface ridge in a weakened state through Sunday. Light winds will continue into the first half of next week as another cold front approaches the area from the northwest direction. Land and sea breezes will develop in the near-shore waters of each island.
Overlapping west-northwest swells will keep surf elevated along exposed north and west facing shores through the end of the week. As the current west-northwest swell slowly decreases this morning, yet another west-northwest swell builds into the region today through Sunday. The High Surf Advisory (HSA) for exposed north and west facing shores continues through Sunday afternoon. Long range guidance continues to show a third west-northwest swell building into the region on Tuesday and Wednesday, likely reaching HSA levels.
Surf heights along east and south facing shores will remain small through the forecast period.
Combined seas will periodically reach Small Craft Advisory (SCA) levels for exposed coastal waters through the week. A SCA was issued this morning for elevated seas around Oahu and Kauai.
HFO Watches/Warnings/Advisories
High Surf Advisory until 6 PM HST Sunday for Niihau, Kauai Leeward, Waianae Coast, Oahu North Shore, Maui Windward West, Kauai North, Molokai Windward, Molokai North, Molokai West, Maui Central Valley North, Windward Haleakala.
Small Craft Advisory until 6 AM HST Sunday for Kauai Northwest Waters, Kauai Windward Waters, Kauai Leeward Waters, Kauai Channel, Oahu Windward Waters.
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