Today: Sunny with isolated showers. Highs 80 to 85 near the shore to 66 to 73 at 4000 feet. Northeast winds up to 15 mph. Chance of rain 20 percent.
Tonight: Partly cloudy with isolated showers. Lows 66 to 71 near the shore to around 57 at 4000 feet. Northwest winds up to 10 mph. Chance of rain 20 percent.
Sunday: Mostly sunny with isolated showers in the morning, then partly sunny with scattered showers in the afternoon. Highs 80 to 86 near the shore to 66 to 73 at 4000 feet. East winds up to 10 mph. Chance of rain 50 percent.
Kona
Today: Mostly sunny. Isolated showers in the morning, then scattered showers in the afternoon. Highs around 85 near the shore to around 70 near 5000 feet. Northwest winds up to 10 mph. Chance of rain 50 percent.
Tonight: Partly cloudy. Isolated showers in the evening. Lows 70 to 75 near the shore to 51 to 56 near 5000 feet. Light winds. Chance of rain 20 percent.
ARTICLE CONTINUES BELOW AD
ARTICLE CONTINUES BELOW AD
Sunday: Mostly sunny. Isolated showers in the morning, then scattered showers in the afternoon. Highs 83 to 88 near the shore to around 70 near 5000 feet. Light winds. Chance of rain 40 percent.
Waimea
Today: Sunny. Isolated showers in the afternoon. Highs around 81 near the shore to 71 to 78 near 3000 feet. East winds 10 to 15 mph decreasing to up to 15 mph in the afternoon. Chance of rain 20 percent.
Tonight: Mostly clear with isolated showers. Lows 65 to 70 near the shore to 55 to 62 near 3000 feet. East winds up to 10 mph. Chance of rain 20 percent.
Sunday: Sunny with isolated showers in the morning, then partly sunny with scattered showers in the afternoon. Highs around 81 near the shore to 70 to 78 near 3000 feet. East winds up to 10 mph. Chance of rain 50 percent.
Kohala
Today: Sunny. Isolated showers in the afternoon. Highs around 81 near the shore to 71 to 78 near 3000 feet. East winds 10 to 15 mph decreasing to up to 15 mph in the afternoon. Chance of rain 20 percent.
ARTICLE CONTINUES BELOW AD
Tonight: Mostly clear with isolated showers. Lows 65 to 70 near the shore to 55 to 62 near 3000 feet. East winds up to 10 mph. Chance of rain 20 percent.
Sunday: Sunny with isolated showers in the morning, then partly sunny with scattered showers in the afternoon. Highs around 81 near the shore to 70 to 78 near 3000 feet. East winds up to 10 mph. Chance of rain 50 percent.
South Big Island
Today: Mostly sunny. Isolated showers in the afternoon. Highs around 85 near the shore to around 69 near 5000 feet. East winds 10 to 15 mph decreasing to up to 15 mph in the afternoon. Chance of rain 20 percent.
Tonight: Mostly clear. Isolated showers in the evening. Lows around 73 near the shore to around 52 near 5000 feet. Northeast winds up to 15 mph. Chance of rain 20 percent.
Sunday: Sunny with isolated showers in the morning, then partly sunny with scattered showers in the afternoon. Highs around 85 near the shore to around 69 near 5000 feet. East winds up to 10 mph. Chance of rain 40 percent.
Puna
ARTICLE CONTINUES BELOW AD
Today: Sunny with isolated showers. Highs 80 to 85 near the shore to 66 to 73 at 4000 feet. Northeast winds up to 15 mph. Chance of rain 20 percent.
Tonight: Partly cloudy with isolated showers. Lows 66 to 71 near the shore to around 57 at 4000 feet. Northwest winds up to 10 mph. Chance of rain 20 percent.
Sunday: Mostly sunny with isolated showers in the morning, then partly sunny with scattered showers in the afternoon. Highs 80 to 86 near the shore to 66 to 73 at 4000 feet. East winds up to 10 mph. Chance of rain 50 percent.
Waikoloa
Today: Sunny. Scattered showers in the afternoon. Highs around 85 near the shore to 67 to 73 above 4000 feet. North 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 74 near the shore to 51 to 56 above 4000 feet. East winds up to 10 mph. Chance of rain 20 percent.
Sunday: Mostly sunny. Isolated showers in the morning, then scattered showers in the afternoon. Highs around 85 near the shore to 68 to 73 above 4000 feet. Light winds. Chance of rain 40 percent.
Detailed Forecast
Synopsis
Expect rather light winds through the forecast period, allowing for development of a land breeze/sea breeze pattern. Light to moderate trade winds may briefly return today through Monday. Other than a slight increase in windward showers for Kauai this weekend as a front approaches and stalls, expect rather dry conditions throughout the next seven days.
Discussion
The subtropical ridge continues to straddle the main Hawaiian Islands this morning, keeping winds rather light. Overnight cooling has cleared skies of earlier scattered to patchy broken low clouds. Radar shows no shower activity across the area. Latest soundings show a dry and stable airmass, with 0.9 to 1.3 inches of PW and positive lifted index values. Weakening inversions in the 4500 to 5500 feet layer cap vertical cloud development and limit total rainfall.
A front north of the islands moved closer to Kauai throughout the night and is now 50 to 100 miles away, still too far to impact local weather this morning. Models show this front will stall over or just north of Kauai before dissipating. The probability for showers across Kauai over the next day or two depends on where the front is prior to its dissipation. Elsewhere, fairly dry conditions will prevail through the next week. Trade winds may briefly become light to moderate later today into Monday. However, winds will still be light enough to allow for development of afternoon sea breezes across leeward areas, followed by land breezes each night. Beyond Monday, lighter winds are expected across the islands as another ridge moves south over the state and lingers for several days.
Aviation
Winds will remain light and variable early this morning ahead of a weak cold front approaching from the northwest. Winds will increase slightly to bring light to moderate trades today and tonight. Even with the slight increase in wind speeds, local sea breezes are still expected to develop and bring increased inland cloud cover and spotty showers this afternoon, especially for the more protected areas. Then weak land breezes will likely develop again this evening, which will help to clear out some of the cloud cover overnight. However, as the front approaches, stalls and further weakens near Kauai tonight, northeast winds, increased cloud cover and light rainfall may develop along the north facing slopes of Kauai.
Brief MVFR ceilings or visibilities are possible in showers, otherwise VFR conditions will prevail.
No AIRMETs are in effect and none are expected through the next 24 hours.
Marine
An approaching weakening front will diminish by Sunday as it stalls out just north of Kauai. Light to locally moderate trade winds will briefly return across the region from Sunday night through Monday. A light wind pattern will continue through much of the week with light southeasterly winds developing from Tuesday onward.
Overlapping medium period north to northwest swells will keep small surf along north and west facing shores into early next week. The current north-northwest (330 degree) medium period swell will hold into Saturday. A reinforcing north-northwest (340 degree) swell will arrive late Saturday night, boosting surf a from Sunday into Monday. Another small medium period north- northwest (330-350 degree) swell builds in by next week Wednesday.
A series of late season south swells will keep surf heights boosted along south facing shores into early next week. Longer period south swells (180-190 degrees) will move through the area through Monday. A background medium period southwest (230 degree) swell will build Saturday night and linger into Monday. In the extended time range yet another late season long period swell arriving by Thursday will keep surf heights elevated along south facing shores into next weekend.
Surf will remain small along east facing shores into early next week due to locally light winds and the lack of a significant fetch of trade winds upstream of the islands.
Higher than predicted water levels have been observed across the Hawaiian Islands this past week. Minor coastal flooding is possible during the early morning high astronomical tides into early next week, with Monday seeing the highest tides of the period. A Coastal Flood Statement continues for all vulnerable coastal areas through Tuesday morning.
This comments section is a public community forum for the purpose of free expression. Although Big Island Now encourages respectful communication only, some content may be considered offensive. Please view at your own discretion. View Comments
