Hawaii County climate forecast is Could 31, 2021

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Photo credit: James Grenz

Hilo

Memorial Day: Isolated showers after 9 a.m. Partly sunny with a high near 85. Light and changeable wind blowing 5 to 9 miles per hour from the east in the mornings. The probability of precipitation is 20%.

Tonight: A few showers. Cloudy with a low of about 65. East winds 5 to 11 mph will be calm. The probability of precipitation is 30%. New rainfall levels of less than a tenth of an inch possible.

Tuesday: A few showers, mostly before noon. Mostly cloudy, peaking near 85. Calm wind blowing from east-northeast 5 to 9 miles per hour in the afternoon. The probability of precipitation is 30%. New rainfall levels of less than a tenth of an inch possible.

Kona

Memorial Day: Isolated showers after 9 a.m. Partly sunny with a high near 80. East winds 6 to 13 miles per hour turning west in the morning. The probability of precipitation is 20%.

Tonight: A few showers before midnight. Partly cloudy, with a low of about 64. West-northwest winds 8 to 21 mph. The probability of precipitation is 20%.

THE ARTICLE CONTINUES BELOW THE ADVERT

Tuesday: A few showers after noon. Partly sunny, peaking near 80. Southwest winds 8 to 21 mph, which become weak in the afternoon. The probability of precipitation is 20%.

Waimea

THE ARTICLE CONTINUES BELOW THE ADVERT

Memorial Day: Isolated showers after noon. Increasing clouds, with a high near 79. Light and changeable wind. 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 minimum of 57 breeze, with a light north-northeast wind that increases to 10 to 24 km / h after midnight. Gusts of wind can reach up to 21 km / h. The probability of precipitation is 20%.

Tuesday: A few showers. Partly sunny, peaking near 79. Breezes, with northeasterly winds of 10 to 25 mph, with gusts of up to 35 mph. The probability of precipitation is 20%.

Kohala

THE ARTICLE CONTINUES BELOW THE ADVERT

Memorial Day: Isolated showers after noon. Mostly cloudy, with a peak near 65. West winds around 8 km / h will be calm. The probability of precipitation is 30%.

Tonight: A few showers, mostly after midnight. Mostly cloudy, with a low of about 52. East-northeast winds 5 to 23 km / h, with gusts of up to 30 km / h. The probability of precipitation is 30%. New rainfall levels of less than a tenth of an inch possible.

Tuesday: A few showers, mostly before noon. Mostly cloudy, with a peak near 65. East-southeast winds 9 to 23 km / h, with gusts of up to 30 km / h. The probability of precipitation is 30%. New rainfall levels of less than a tenth of an inch possible.

Southern big island

Memorial Day: Isolated showers. Mostly sunny, peaking near 85. Breezes, with east-northeast winds of 13 to 25 mph, with gusts of up to 32 mph. The probability of precipitation is 20%.

Tonight: A few showers after midnight. Partly cloudy, with a minimum of about 74. Windy, with an easterly wind of 16 to 28 mph, with gusts of up to 37 mph. The probability of precipitation is 20%.

Tuesday: A few showers before noon. Mostly sunny, with a high near 85. Windy, with easterly winds of 16 to 20 mph, with gusts of up to 24 mph. The probability of precipitation is 20%.

Feedback

Memorial Day: Isolated showers. Mostly cloudy with a high near 84. Southeasterly winds 8-11 mph. The chance of precipitation is 20%.

Tonight: A few showers. Cloudy with a low of about 63. East-southeast winds 5 to 9 mph that becomes light and changeable. The probability of precipitation is 40%. New rainfall levels of less than a tenth of an inch possible.

Tuesday: A few showers. Cloudy with a high near 84. West winds 5 to 11 mph turning east-northeast in the morning. The probability of precipitation is 40%. New rainfall levels of less than a tenth of an inch possible.

Waikoloa

Memorial Day: Isolated showers after noon. Mostly sunny with a high near 85. South-southeast winds 6 to 9 mph turning west-northwest in the afternoon. The probability of precipitation is 20%.

Tonight: Mostly clear, with a low of about 65. Light and changeable winds blowing 6 to 11 miles per hour from the east after midnight.

Tuesday: Mostly sunny, with a high near 85. East-northeast winds 8 to 21 mph, which become light and changeable in the afternoon.

Summary

Expect a weather pattern today with land and sea breezes with increasing clouds and sparse afternoon and evening showers inland and in the Mauka areas. A more typical trade wind pattern will return on Tuesday and then continue through the next weekend.

discussion

The short-term orientation remains in good agreement and shows weakness in the ridge that remains today due to a north-facing front. In response to the loosened pressure gradient and the ridge shifting south across the area, the low-level river has shifted from the south over the western end of the state and southeast over the east end. This will mean that a land and sea wind regime continues to this day. Although afternoon sea breezes will cause clouds and showers to form over the indoor and mauka locations, rising heights and subsidence in altitude will limit the likelihood / accumulation of precipitation.
The guidance remains in reasonable agreement, showing a return to a more typical Tuesday through Wednesday trade wind pattern as the north front wanes and the back worsens. Clouds and showers will retreat over windward and mountainous locations, with the best chances being overnight until the early hours of the morning. The guidelines show the moisture axis associated with the end of the front line drifting south into the western end of the state by Thursday. If this holds together, better coverage with rain showers cannot be ruled out from Thursday to Friday. However, dry and stable conditions should limit accumulation. Expect the trade wind pattern to continue until next weekend.

aviation

Land breezes will continue to hold most showers and low cloud cover over the open sea for the next several hours. However, expect a sea breeze to develop in the late morning, bringing showers into elevated terrain and over the island’s interior. Short MVFR ceilings and visibility ranges can accompany this activity.
No AIRMETs are currently in force.

marine

Light and variable winds will persist over the western islands today, while light to moderate east-southeast winds will prevail over the eastern end of the state. Trade winds will return across the island chain from east to west tonight and Tuesday and intensify to moderate and locally strong levels from Wednesday through the weekend.
A series of small swells from the south will stay close to slightly below normal surf on the south-facing banks through Thursday. South coast surf could pick up slightly towards the end of the week and over the weekend as a couple of new overlapping south and south-southwest swells creep through it.
The current northwest swell will slowly tend upward through Tuesday, giving surfing along the north and west coasts a boost. After peaking on Tuesday, those swell will trend lower from Wednesday to Friday, with north coast surf likely to flatten over the weekend.
Surfing along the east-facing coastlines will remain very small through Tuesday and then trend upward on Wednesday through the weekend as trade over and upstream of the islands increases.

HFO clocks / warnings / notices Ad

None.

Data courtesy of NOAA.gov

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