Today: Mostly cloudy. Frequent showers in the morning, then isolated showers in the afternoon. Highs 80 to 85 near the shore to 65 to 72 at 4000 feet. Northeast winds up to 15 mph shifting to the east in the afternoon. Chance of rain 80 percent.
Tonight: Mostly cloudy with numerous showers. Lows 62 to 71 near the shore to around 56 at 4000 feet. Northwest winds up to 10 mph. Chance of rain 70 percent.
Monday: Partly sunny with scattered showers. Highs 80 to 86 near the shore to 66 to 72 at 4000 feet. Northeast winds up to 15 mph shifting to the east in the afternoon. Chance of rain 50 percent.
Kona
Today: Sunny in the morning, then mostly cloudy with isolated showers in the afternoon. Highs 83 to 88 near the shore to around 70 near 5000 feet. Light winds. Chance of rain 20 percent.
Tonight: Mostly cloudy with isolated showers in the evening, then mostly clear after midnight. Lows around 73 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
Monday: Sunny in the morning, then partly sunny with isolated showers in the afternoon. Highs 84 to 89 near the shore to around 71 near 5000 feet. Light winds becoming northwest up to 10 mph in the afternoon. Chance of rain 20 percent.
Waimea
Today: Partly sunny. Numerous showers in the morning, then isolated showers in the afternoon. Highs around 80 near the shore to 70 to 78 near 3000 feet. East winds up to 15 mph. Chance of rain 70 percent.
Tonight: Mostly cloudy with scattered showers. Lows 63 to 72 near the shore to 55 to 62 near 3000 feet. East winds up to 15 mph. Chance of rain 50 percent.
Monday: Mostly sunny in the morning then becoming partly sunny. Breezy. Scattered showers. Highs around 81 near the shore to 71 to 80 near 3000 feet. East winds up to 20 mph increasing to 10 to 20 mph in the afternoon. Chance of rain 50 percent.
Kohala
Today: Partly sunny. Numerous showers in the morning, then isolated showers in the afternoon. Highs around 80 near the shore to 70 to 78 near 3000 feet. East winds up to 15 mph. Chance of rain 70 percent.
ARTICLE CONTINUES BELOW AD
Tonight: Mostly cloudy with scattered showers. Lows 63 to 72 near the shore to 55 to 62 near 3000 feet. East winds up to 15 mph. Chance of rain 50 percent.
Monday: Mostly sunny in the morning then becoming partly sunny. Breezy. Scattered showers. Highs around 81 near the shore to 71 to 80 near 3000 feet. East winds up to 20 mph increasing to 10 to 20 mph in the afternoon. Chance of rain 50 percent.
South Big Island
Today: Breezy. Sunny in the morning, then mostly cloudy with isolated showers in the afternoon. Highs around 85 near the shore to around 66 near 5000 feet. East winds up to 20 mph. Chance of rain 20 percent.
Tonight: Breezy. Mostly cloudy with isolated showers in the evening, then mostly clear after midnight. Lows around 73 near the shore to around 53 near 5000 feet. East winds up to 20 mph. Chance of rain 20 percent.
Monday: Mostly sunny. Breezy. Isolated showers in the afternoon. Highs around 86 near the shore to around 67 near 5000 feet. East winds up to 25 mph. Chance of rain 20 percent.
Puna
ARTICLE CONTINUES BELOW AD
Today: Mostly cloudy. Frequent showers in the morning, then isolated showers in the afternoon. Highs 80 to 85 near the shore to 65 to 72 at 4000 feet. Northeast winds up to 15 mph shifting to the east in the afternoon. Chance of rain 80 percent.
Tonight: Mostly cloudy with numerous showers. Lows 62 to 71 near the shore to around 56 at 4000 feet. Northwest winds up to 10 mph. Chance of rain 70 percent.
Monday: Partly sunny with scattered showers. Highs 80 to 86 near the shore to 66 to 72 at 4000 feet. Northeast winds up to 15 mph shifting to the east in the afternoon. Chance of rain 50 percent.
Waikoloa
Today: Sunny. Highs 83 to 89 near the shore to 66 to 73 above 4000 feet. North winds up to 15 mph.
Tonight: Partly cloudy. Isolated showers in the evening. Lows around 74 near the shore to 51 to 57 above 4000 feet. East winds up to 10 mph. Chance of rain 20 percent.
Monday: Mostly sunny. Highs 84 to 90 near the shore to 67 to 74 above 4000 feet. Northeast winds up to 15 mph.
Detailed Forecast
Synopsis
Moderate trades will focus low clouds and showers over windward and mauka areas through next week, especially overnight and during the early morning. Periodic high clouds will transit area skies.
Discussion
An inversion around 6.5kft at Lihue and Hilo on this morning's soundings are symptomatic of the typical, stable summertime pattern in place over the islands. Mid-level ridging over the Northeast Pacific will support moderate to locally breezy trades through the forecast period while the subtropical jet funnels periodic high clouds across area skies. The latest model analysis indicates a trough embedded in the trades and anchored around 700mb. Though subtle on satellite imagery, the western half of state is observing a slow but steady increase in shower coverage at press time. Similar to yesterday to yesterday morning, a few locally heavy showers noted. A building mid-level ridge will nudge the subtropical jet north of the area during the middle of next week. Consequently, the attendant upper- level low north of Kauai will shear back into the westerlies, the back edge modeled to sharpen as it swings through. This will be largely inconsequential, but may bring about a slight uptick in trade showers and mid/upper cloud cover during the latter half of next week. Mid-level subsidence works steadily downward during this time, bringing a further increase in mid- level stability from about Wednesday onward.
Aviation
A high pressure ridge far north of the Hawaii region will keep moderate trade winds blowing across the state through tonight. Expect periods of showers, mainly along north and east slopes of each island, with brief periods of MVFR conditions in the heaviest shower bands.
No AIRMETs in effect and none are expected.
Marine
A surface ridge far north of the state will maintain moderate trade winds this morning. The trade winds are expected to gradually strengthen later today and tonight as the surface ridge builds north of the state. Based on the latest forecast, the trade winds will likely reach the Small Craft Advisory (SCA) criteria over the typically windier waters adjacent to the islands of Maui County and the Big Island tonight. Therefore, a SCA is in effect from this evening through the afternoon of Tuesday July Fourth for these waters. This SCA will likely need to be extended beyond Tuesday, since the locally strong trade winds are expected to persist through mid-week.
No significant swells are expected through Friday. Small south and southeast swells will maintain small background surf along south facing shores. By Tuesday, some southwest swell energy may also be added to the mix, but surf will likely remain small along south facing shores through Friday. A new slightly larger southwest swell may boost surf heights along south facing shores next weekend. Elsewhere, the weak trade wind regime will likely keep surf small along east facing shores early this week. As the trade winds strengthen, expect choppy surf to gradually build to modest heights along east facing shores later this week.
HFO Watches/Warnings/Advisories
Small Craft Advisory from 6 PM this evening to 6 PM HST Tuesday for Maalaea Bay, Pailolo Channel, Alenuihaha Channel, Big Island Leeward Waters, Big Island Southeast Waters.
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