Hawaii County climate forecast is Might 24, 2021

Hilo

Today: A few showers, especially after noon. Partly sunny with a high near 82. West winds 5 to 10 miles per hour turning east in the afternoon. The probability of precipitation is 40%. New rainfall levels of less than a tenth of an inch possible.

Tonight: A few showers. Mostly cloudy, with a low of about 65. West-southwest wind with about 10 km / h, which becomes calm after midnight. The probability of precipitation is 40%. New rainfall levels of less than a tenth of an inch possible.

Tuesday: A few showers. Mostly cloudy, peaking near 80. Calm wind at 5 to 8 miles per hour from the east. 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. Partly sunny, with a high near 79. Calm wind blowing between 5 and 7 mph 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 before 8 p.m. Partly cloudy, with a low of about 63. Northwest wind with about 8 km / h, which becomes calm after midnight. The probability of precipitation is 30%. New rainfall levels of less than a tenth of an inch possible.

THE ARTICLE CONTINUES BELOW THE ADVERT

Tuesday: A few showers after noon. Increasing clouds, with a high near 77. Light and changeable wind from west-northwest 5 to 8 mph. 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, especially after noon. Partly sunny, with a high near 75. Light and changeable wind. The probability of precipitation is 40%. New rainfall levels of less than a tenth of an inch possible.

Tonight: A few showers, mostly before 8 p.m. Partly cloudy with a minimum of around 52. Calm winds blowing 5 to 11 mph from the north-northeast. The probability of precipitation is 40%. New rainfall levels of less than a tenth of an inch possible.

Tuesday: A few showers, mainly after noon. Increasing clouds, with highs near 73. Light north-northeast winds blowing 5 to 9 miles per hour from the northeast in the morning. The probability of precipitation is 40%. New rainfall levels of less than a tenth of an inch possible.

Kohala

THE ARTICLE CONTINUES BELOW THE ADVERT

Today: A few showers, especially after noon. Partly sunny, with a high near 61. Calm wind. The probability of precipitation is 40%. New rainfall levels of less than a tenth of an inch possible.

Tonight: A few showers, mostly before 8 p.m. Partly cloudy with a minimum of about 50. Calm wind blowing at 5 to 8 miles per hour from the east in the evening. The probability of precipitation is 40%. New rainfall levels of less than a tenth of an inch possible.

Tuesday: A few showers, mainly after noon. Partly sunny, with a peak near 59. East winds 6 to 8 mph. The probability of precipitation is 40%. New rainfall levels of less than a tenth of an inch possible.

Southern big island

Today: A few showers, especially before noon. Partly sunny, with a high near 81. Windy, with easterly winds of 16 to 28 mph, with gusts of up to 37 mph. The probability of precipitation is 30%.

Tonight: A few showers, mostly after 8 p.m. Mostly cloudy with a minimum of about 72. Breezes, with east-northeast winds of 16 to 28 mph, with gusts of up to 37 mph. The probability of precipitation is 30%.

Tuesday: A few showers, mostly before noon. Partly sunny, peaking near 81st breezes, with an easterly wind of 13 to 28 miles per hour, with gusts of up to 37 miles per hour. The probability of precipitation is 30%.

Feedback

Today: a few showers. Mostly cloudy with a high near 79. West winds 5 to 9 mph in the afternoon with east-southeast. The probability of precipitation is 50%. New rainfall levels of less than a tenth of an inch possible.

Tonight: A few showers. Mostly cloudy, with a low of about 62. East-southeast wind with about 10 km / h, which becomes light and changeable after midnight. The probability of precipitation is 50%. New rainfall levels of less than a tenth of an inch possible.

Tuesday: A few showers. Mostly cloudy with a high near 77. Light and changeable winds blowing 5 to 10 miles per hour from east-northeast in the morning. The probability of precipitation is 50%. New rainfall levels of less than a tenth of an inch possible.

Waikoloa

Today: A few showers from 1 p.m. Mostly sunny, with a high near 82. Light and changeable wind blowing at 5 to 9 miles per hour from the northwest 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 before 9 p.m. In the early evening mostly cloudy, then mostly clear, with a low of about 64. West winds with about 8 km / h are calm. The probability of precipitation is 30%. New rainfall levels of less than a tenth of an inch possible.

Tuesday: Occasional showers from 1 p.m. Increasing cloudiness, peaking near 80. East winds 5 to 8 mph in the afternoon with west-southwest. The probability of precipitation is 30%. New rainfall levels of less than a tenth of an inch possible.

Summary

Warm and humid conditions with light east to south-east winds are expected in the first half of the week. Clouds and showers will favor inland and leeward locations as the sea breezes develop in the afternoon and early evening. A return of light to moderate east trade winds is possible in the second half of the week. Light east to south-east winds will be possible again this coming weekend, as another front breaks off in a north-westerly direction.

discussion

The short-term projections are still in good agreement and show a weakness in the back that persists until the beginning of the week due to front stalling and a weakening to the northwest. The low water current on the islands has deviated from the east-south-east direction as a reaction to the relaxed pressure gradient and the ridge edge that has been shifted southward into the area. This will result in land and sea breezes through at least Tuesday. The showers will shift from the typical windward and mountain locations to leeward and inland areas in the course of the afternoon due to the daytime heating and the sea breeze. Additional instability related to a shortwave trough digging southeast into an area north of the islands today through Tuesday could aid in better coverage with afternoon showers. The limiting factor, however, will be the lack of available low to medium humidity. Previous model cycles have advocated a better source of moisture moving east across the islands during this time, with PWs increasing towards 1.6. This has changed in the latest model guide, which now shows dryer profiles with PWs that only reach 1.3 “to 1.5”. As in the last few days, one or two thunderstorms over the slopes cannot be ruled out over the Big Island in the afternoon (decent average cancellation rates).
For the longer period the forecasts remain in acceptable agreement and show a return to a more typical trade wind pattern that builds up in the second half of the week when the front in the northwest decreases and the ridge in the north becomes stronger. The low-level current will shift again from the east, but may remain in the light to moderate category – which could lead to local ocean breezes developing in the protected lee areas. A repeat from the beginning of this week seems possible for the upcoming holiday weekend, as another front is coming in from the northwest and the local winds are turning from the east-southeast.

aviation

Light ESE currents gave way to land winds and clear skies this morning. The onset of daytime warming leads to the development of a sea breeze in the morning. Inland clouds and some showers will bring the potential for short MVFR in inland and lee areas. In the meantime, the afternoon convection over the Big Island is likely to be less strong than the previous days as the stability has increased at medium levels. However, isolated thunder remains possible, mainly over the slopes of Leeward Big Island. Land breezes and clear skies will develop again tonight.

marine

A front approaching the region from the northwest will stall in the northwest of the islands as it weakens into a trough. As a result, the trade winds over the western islands are weakened to variable breezes, while until Tuesday gentle winds are diverted east to southeast over more easterly windward waters. As the weak valley washes up north of the islands in the middle of the week, the high pressure will build up again in the northeast and allow more moderate trades to return in the second half of the week.
A small north-north-northwest swell will peak today. This will increase surfing heights slightly on most of the north and west facing banks before gradually fading away on Tuesday. The next small northwest swell is expected to intensify north and west bank surf Wednesday night through Friday. While confidence is low, the arrival of a major northwest swell on Memorial Day in late May could add significant surf along many north and west exposures. A series of small, long swells from southwest to south, expected to arrive until today and last through Friday, will raise surfing heights slightly to seasonal levels over the course of the week. Despite the weaker trade wind regime over the islands, an influx of moderate trade winds directly upstream of the islands will likely maintain a small surf along the east facing coasts until mid-week.
High astronomical tides, along with water levels about a third of a foot above normal, could result in bothersome coastal flooding during afternoon / evening high tides this week. Floods such as flooding normally dry beaches and coastal infrastructure could occur as early as Tuesday.

HFO clocks / warnings / notices Ad

None.

Data courtesy of NOAA.gov

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