Hawaii County climate forecast is July 03, 2021

Hilo

Today: Showers likely, mostly before noon. Partly sunny with a high near 84. Light and changeable wind blowing 5 to 10 miles per hour from the northeast in the afternoon. The probability of precipitation is 60%. New rainfall levels of less than a tenth of an inch possible.

Tonight: Showers likely. Mostly cloudy, with a low of about 66. north-northeast winds 5 to 11 mph that become calm in the evening. The probability of precipitation is 70%. New rainfall levels of less than a tenth of an inch possible.

Independence Day: Showers likely, mostly before noon. Partly sunny, with a high near 84. Light and changeable wind blowing 5 to 9 miles per hour from east-northeast in the morning. The probability of precipitation is 60%. New rainfall levels of less than a tenth of an inch possible.

Kona

Today: A few showers after noon. Partly sunny, peaking near 80. Light and changeable wind blowing from the west at 5 to 10 miles per hour in the afternoon. The probability of precipitation is 30%. New rainfall levels of less than a tenth of an inch possible.

Tonight: A few showers, mostly before midnight. Partly cloudy, with a minimum of about 65. Southwest wind with a speed of about 10 km / h, which becomes calm in the evening. The probability of precipitation is 30%. New rainfall levels of less than a tenth of an inch possible.

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Independence Day: A few showers after noon. Partly sunny, with a high of near 80. Calm winds from the west at a speed of 5 to 9 miles per hour. The probability of precipitation is 30%. New rainfall levels of less than a tenth of an inch possible.

Waimea

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Today: a few showers. Partly sunny, with a high near 79. Windy, with a northeast wind of 23 to 45 mph, with gusts of up to 40 mph. The probability of precipitation is 40%. New levels of precipitation between a tenth and a quarter of an inch are possible.

Tonight: A few showers. Mostly cloudy with a minimum of about 58. Breezes, with east-northeast winds of 16 to 21 mph, with gusts of up to 48 mph. The probability of precipitation is 40%. New levels of precipitation between a tenth and a quarter of an inch are possible.

Independence Day: A few showers. Partly sunny, with a peak near 79. Breeze, with an east-northeast wind around 30 km / h, with gusts of up to 42 km / h. The probability of precipitation is 40%. New levels of precipitation between a tenth and a quarter of an inch are possible.

Kohala

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Today: Showers likely, mostly before noon. Partly sunny, with a high near 65. Windy, with an easterly wind of 25 to 45 mph, with gusts of up to 41 mph. The probability of precipitation is 60%. New rainfall levels of less than a tenth of an inch possible.

Tonight: Showers likely. Mostly cloudy, with a low point around 53. Windy, with easterly winds of 22 to 40 km / h, with gusts of up to 60 km / h. The probability of precipitation is 70%. New rainfall levels of less than a tenth of an inch possible.

Independence Day: Showers likely, mostly before noon. Partly sunny, with a high near 65. Windy, with easterly winds of 18 to 23 mph, with gusts of up to 53 mph. The probability of precipitation is 60%. New rainfall levels of less than a tenth of an inch possible.

Southern big island

Today: single showers. Mostly sunny, with a peak near 85. Windy, with easterly winds of 23 to 42 km / h, with gusts of up to 54 km / h. The probability of precipitation is 20%.

Tonight: A few showers. Partly cloudy, with a low of around 74. Windy, with easterly winds of 21 to 40 km / h, with gusts of up to 32 km / h. The probability of precipitation is 20%.

Independence Day: Insulated Showers. Mostly sunny, with a high near 85. Windy, with easterly winds of 20 to 25 miles per hour, with gusts of up to 32 miles per hour. The probability of precipitation is 20%.

feedback

Today: Showers likely, mostly before noon. Partly sunny, with a peak near 83rd breeze, with a northwest wind of 9 to 24 km / h turning northeast in the afternoon. Gusts of wind can reach up to 21 km / h. The probability of precipitation is 60%. New rainfall levels of less than a tenth of an inch possible.

Tonight: Showers likely. Mostly cloudy, with a low of about 64. North winds 7 to 13 mph. The probability of precipitation is 70%. New levels of precipitation between a tenth and a quarter of an inch are possible.

Independence Day: Showers likely, mostly before noon. Partly sunny, with a peak near 83. Northeast winds 8 to 23 km / h, with gusts of up to 30 km / h. The probability of precipitation is 60%. New levels of precipitation between a tenth and a quarter of an inch are possible.

Waikoloa

Today: A few showers after noon. Mostly sunny, with a peak near 85. Windy, with an east-northeast wind of 13 to 28 km / h, which increases to 21 to 42 km / h in the afternoon. Gusts of wind could reach up to 38 km / h. The probability of precipitation is 20%.

Tonight: Partly cloudy, with a minimum of about 66. Breezes, with an easterly wind of 11 to 28 mph, with gusts of up to 40 mph.

Independence Day: A few showers after noon. Mostly sunny, with a peak near 85. Northeast winds 6 to 23 km / h, with gusts of up to 32 km / h. The probability of precipitation is 20%.

summary

Stormy trade winds will continue today, with a gradual weakening expected for the remainder of the holiday weekend. Moderate trades will then prevail by the end of next week. A fairly typical trade wind weather is expected for the next 7 days. Rain showers will favor windward and mauka areas, especially at night and early in the morning, with an occasional shower spilling downwind from time to time.

discussion

It currently has an elevation of 1031 mb at the surface, centered about 1100 miles north of Honolulu and driving breezy trade winds over the island chain this morning. Infrared satellite imagery shows mostly cloudy skies in windward areas, with partly cloudy conditions in most of the leeward areas. Radar images are scattered across numerous showers moving into windward areas, with some decaying showers spilling over into leeward communities. The top short-term concerns revolve around the likelihood of rain and trade wind trends over the holiday weekend.
The high pressure in the north of the state will gradually shift westward over the holiday weekend and then remain near-stationary in the far northwest of the state until the end of next week. The breezy trade winds are expected to continue today, then gradually easing for the remainder of the holiday weekend as ridge weakness increases inversion heights above the state. Moderate trades with only minor fluctuations in strength are then expected for much of the next week.
As for the rest of the weather details, fairly typical trade winds are expected by the end of next week, with showers favoring windward and mauka areas, especially at night and early in the morning. Some showers will also sometimes reach leeward areas due to the slightly higher inversion heights associated with the weakness of the ridges. In the next 7 days, no significant precipitation is to be expected.

aviation

A moderate to airy trading pattern will help create isolated showers this morning, mostly along the windward locations, with some showers spilling over into leeward areas at times. Periods of MVFR caps and visibility ranges are likely to occur during this activity. The showers are expected to subside by this afternoon.
AIRMET Sierra remains in effect for Kauai, Oahu, Molokai, Maui, and the Big Island above 2500 feet due to pace mountain darkening from low clouds and showers.
AIRMET Tango remains in effect below 8,000 ft above and immediately southwest through the northwest of all mountains and islands and is likely to continue through tonight.

marine

Fresh to strong trade winds will prevail until early Sunday, which will prompt a Small Craft Advisory (SCA) for all waters by this evening. The surface high will drift northwest on Sunday and Monday, easing trades. The SCA is expected to return to the normally windy waters around the Big Island and Maui on Sunday morning and continue through next week.
Long-term precursors of a significant south swell are expected to arrive on Sunday with increasing surfing energy Monday and Tuesday. Surfing on the south coast will likely hit high surf advisory levels of 8 feet Monday and Tuesday and then slowly decline from Wednesday through Friday. The current south swell in the background will maintain a small surf along the south coast until tonight. The seas created by the rough trade winds are moving in the seasonal average with a slight increase expected today and on Sunday, followed by a decrease to the average at the beginning of next week. Surfing along the north-facing coasts will get a little boost until Sunday, as a short NW swell pervades through.

HFO watches / warnings / notices

Small Craft Advisory until Monday 6:00 p.m. HST for Maalaea Bay, Pailolo Channel, Alenuihaha Channel, Big Island Leeward Waters, Big Island Southeast Waters.
Small boat advice until Sunday 6:00 a.m. HST for Kauai Northwest Waters, Kauai Windward Waters, Kauai Leeward Waters, Kauai Channel, Oahu Windward Waters, Oahu Leeward Waters, Kaiwi Channel, Maui County Windward Waters, Maui County Leeward Waters, Big Island Windward Waters.

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Data courtesy of NOAA.gov

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