Hawaii County climate forecast is June 26, 2021

Hilo

Today: single showers. Mostly sunny, with a high near 80. Light and changeable wind blowing from the east at 5 to 8 miles per hour in the afternoon. The probability of precipitation is 20%.

Tonight: A few showers. Mostly cloudy, with a low of about 66. East wind with about 10 km / h becomes calm. The probability of precipitation is 40%. New rainfall levels of less than a tenth of an inch possible.

Sunday: A few showers, mostly before noon. Partly sunny, peaking near 80. Calm wind blowing 5 to 9 miles per hour from the east in the afternoon. The probability of precipitation is 40%. New rainfall levels of less than a tenth of an inch possible.

Kona

Today: A few showers after noon. Mostly sunny, with a peak near 79. Windy, with a north wind of 7 to 24 km / h, which comes from the west in the morning. Gusts of wind can reach up to 21 km / h. The probability of precipitation is 20%.

Tonight: A few showers, mostly before midnight. Partly cloudy, with a minimum of about 67 breezes, with a westerly wind of 6 to 25 miles per hour turning northeast after midnight. Gusts of wind can reach up to 21 km / h. The probability of precipitation is 30%. New rainfall levels of less than a tenth of an inch possible.

THE ARTICLE CONTINUES BELOW THE ADVERT

Sunday: A few showers after noon. Mostly sunny, with a high near 79. Northwest winds 5 to 9 miles per hour that become calm in the afternoon. The probability of precipitation is 30%. New rainfall levels of less than a tenth of an inch possible.

Waimea

THE ARTICLE CONTINUES BELOW THE ADVERT

Today: A few showers after noon. Mostly sunny, with a high near 75. North-northeast winds 8 to 13 mph. The probability of precipitation is 20%.

Tonight: A few showers. Mostly cloudy, with a low of about 57. North-northeast winds 7 to 10 mph. The probability of precipitation is 30%.

Sunday: A few showers, mainly after noon. Mostly sunny, with a high near 75. Northeasterly winds 8 to 21 mph. The probability of precipitation is 30%.

Kohala

THE ARTICLE CONTINUES BELOW THE ADVERT

Today: A few showers, especially after noon. Mostly sunny, with a peak near 70. Calm wind with a speed of 10 km / h from east-southeast. The probability of precipitation is 30%. New rainfall levels of less than a tenth of an inch possible.

Tonight: A few showers. Mostly cloudy with a low of around 55. Calm wind blowing 5 to 9 miles per hour from the east after midnight. The probability of precipitation is 30%. New rainfall levels of less than a tenth of an inch possible.

Sunday: A few showers. Partly sunny with highs near 70. East winds 9 to 21 mph. The probability of precipitation is 40%. New levels of precipitation between a tenth and a quarter of an inch are possible.

Southern big island

Today: Sunny, with a high near 83. Windy, with an easterly wind of 17 to 35 km / h, with gusts of up to 45 km / h.

Tonight: Mostly clear, with a low of about 72. Windy, with east-northeast winds of 16 to 20 mph, with gusts of up to 40 mph.

Sunday: Sunny, with a high near 83. Windy, with an easterly wind of 16 to 20 mph, with gusts of up to 40 mph.

Feedback

Today: A few showers, especially after noon. Mostly sunny with a high near 77. West winds 5 to 11 mph turning east in the morning. The probability of precipitation is 30%. New rainfall levels of less than a tenth of an inch possible.

Tonight: A few showers. Mostly cloudy, with a low of about 64. East winds 5 to 11 mph will be calm. The probability of precipitation is 40%. New rainfall levels of less than a tenth of an inch possible.

Sunday: A few showers. Partly sunny with a high near 77. Light and changeable winds blowing from 5 to 9 miles per hour from the east in the afternoon. The probability of precipitation is 40%. New levels of precipitation between a tenth and a quarter of an inch are possible.

Waikoloa

Today: Sunny with highs near 83. Calm wind blowing from west-northwest 5 to 8 miles per hour in the afternoon.

Tonight: A few showers between 7pm and 1am. Partly cloudy, with a low of around 65. West winds of around 10 km / h become calm in the evening. The probability of precipitation is 20%.

Sunday: Sunny, with highs near 83. Calm wind blowing west-northwest at 5 to 8 miles per hour in the afternoon.

Summary

A cold front that has stalled north of the islands will hold a weak high pressure ridge into Sunday. The ridge north of the islands slowly builds up from Sunday. This means that the light to moderate trade winds for most areas will last all weekend, the wind speeds will gradually increase from Monday to the moderate to locally breezy range. Fairly stable conditions in the air are forecast to hold only brief showers during the week.

discussion

Satellite and radar images from tonight show a band of cloud drifting over parts of the Big Island and eastern Maui in a light wind pattern. A weak ridge lingers north of the islands with a stagnant cold front currently located about 400 miles north of Kauai.
A weakened high pressure ridge north of the state will keep light to moderate trade winds forecast for most areas through Sunday, with sea breezes developing over some leeward locations during the day. We’re starting to move back to a moderate trade wind weather pattern on Sunday as the trade winds are expected to get a little stronger every day from Monday through Wednesday.
Fairly stable conditions at altitude will only keep short transient showers in the forecast. Rain showers will typically favor windward and mountainous areas or in leeward cloud convergence zones that form from southwest to west of each island. With this weather pattern, some evening showers are likely to develop along the lee slopes of the Big Island as the downhill mountain breezes converge with onshore winds.

aviation

The islands remain under a weak trade wind current as the surface ridge comes to a standstill 150 nm north of Kauai. The clouds from yesterday’s daytime heating cleared the Big Island further this early Saturday morning. There are a few showers around Hana Maui, and the odd showers have just occurred on the leeward side of the Big Island at Kawaihae and Waikoloa Beach Resort. Otherwise, heaven is fair in the rest of the state.
Since the ridge stays north of the islands for another day, we can expect more of it today than yesterday. The daytime heating encourages the ocean breezes, which leads to some afternoon clouds and spotty showers, especially over indoor and void areas. The Big Island slopes will cloud again during the day and there will be a few showers. At night, a land breeze takes over, dispersing the clouds and pushing all the showers from the island into the adjacent waters. There will be a few showers embedded in the weak trade flow, but the land breezes will keep them from moving ashore. In addition, the air mass is rather dry and stable, so the showers are limited. Essentially a VFR day ahead.

marine

Light to locally moderate trade winds from the east are expected until early Sunday, as there is a ridge north of Kauai. The trade winds will increase on Sunday and Monday as the ridge moves north and the high pressure increases northeast of the state. Local breezy conditions may return by the middle of next week.
Lows that pass far north of the area will continue to generate small, off-season, short-term northwest swells until the middle of next week, keeping the surf above the typical summer flat level. These swells are expected to peak today with a gradual decline over the next week. A number of small south and south-east swells are expected throughout the forecast period, with a slightly larger south swell possible on late Tuesday and Wednesday. Due to the lack of significant trade winds over and against the area’s winds, surf will remain low along the east-facing banks, with increasing surf possible next week as the trade winds get stronger.

HFO watches / warnings / notices

None.

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Data courtesy of NOAA.gov

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