Weather

December 18, 2017 Weather Forecast

December 18, 2017, 3:00 AM HST
Listen to this Article
5 minutes
Loading Audio...
A
A
A

no slideshow

Photo Credit: James Grenz

Flash Flood Watch issued December 17 at 3:23PM HST until December 20 at 6:00AM HST by NWS

Our weather team will bring you any urgent weather alerts or updates as they occur. Check our breaking news section for the latest.

**Click directly on the images below to make them larger. Charts include: Hawaii Island high/low forecasted temperatures, projected winds, projected localized weather conditions and expected wave heights.**

    +
    SWIPE LEFT OR RIGHT

Hilo

Today: Widespread haze. Mostly cloudy, with a low around 65. Light west wind.

ARTICLE CONTINUES BELOW AD

Tonight: Scattered showers after 1pm. Widespread haze. Mostly cloudy, with a high near 79. Calm wind becoming east southeast 5 to 7 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

ARTICLE CONTINUES BELOW AD

Tomorrow: Scattered showers. Widespread haze. Mostly cloudy, with a low around 66. Light south wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

Kona

Today: Isolated showers. Partly cloudy, with a low around 62. Calm wind. Chance of precipitation is 20%.

ARTICLE CONTINUES BELOW AD

Tonight: Scattered showers, mainly after noon. Widespread haze. Mostly cloudy, with a high near 79. Calm wind becoming west northwest 5 to 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Tomorrow: Scattered showers. Widespread haze. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 50%. New precipitation amounts between a half and three quarters of an inch possible.

Waimea

Today: Isolated showers. Widespread haze. Mostly cloudy, with a low around 55. Light and variable wind. Chance of precipitation is 20%.

Tonight: Scattered showers, mainly after noon. Widespread haze. Mostly cloudy, with a high near 70. West wind 5 to 7 mph becoming calm in the afternoon. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

Tomorrow: Scattered showers. Widespread haze. Mostly cloudy, with a low around 54. Calm wind. Chance of precipitation is 50%. New precipitation amounts between three quarters and one inch possible.

Kohala

Today: Isolated showers. Mostly cloudy, with a low around 48. West southwest wind around 8 mph. Chance of precipitation is 20%.

Tonight: Scattered showers, mainly after noon. Widespread haze. Mostly cloudy, with a high near 66. West southwest wind 5 to 7 mph becoming calm in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Tomorrow: Scattered showers. Widespread haze. Mostly cloudy, with a low around 47. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

South Point

Today: Isolated showers. Partly cloudy, with a low around 71. East wind 8 to 10 mph. Chance of precipitation is 20%.

Tonight: Scattered showers, mainly after noon. Widespread haze. Partly sunny, with a high near 79. East wind 9 to 14 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Tomorrow: Scattered showers. Mostly cloudy, with a low around 74. East wind 5 to 9 mph becoming light and variable after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

Puna

Today: Widespread haze. Mostly cloudy, with a low around 63. West southwest wind 3 to 5 mph.

Tonight: Scattered showers after noon. Widespread haze. Mostly cloudy, with a high near 78. Southeast wind 5 to 9 mph becoming calm in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Tomorrow: Scattered showers. Mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

Hamakua

Today: Partly cloudy, with a low around 28. Very windy, with a southwest wind around 34 mph, with gusts as high as 43 mph.

Tonight: Scattered snow showers after noon. Partly sunny, with a high near 35. Very windy, with a west southwest wind 31 to 36 mph decreasing to 20 to 25 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 30%.

Tomorrow: Scattered snow showers, mainly after midnight. Mostly cloudy, with a low around 29. Breezy, with a southwest wind around 21 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.

Waikoloa

Today: Isolated showers. Partly cloudy, with a low around 62. East wind around 8 mph. Chance of precipitation is 20%.

Tonight: Scattered showers, mainly after noon. Widespread haze. Mostly cloudy, with a high near 80. West northwest wind 5 to 9 mph becoming calm in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Tomorrow: Scattered showers. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 50%. New precipitation amounts between a half and three quarters of an inch possible.

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Synopsis

Surface troughing will set up over the central and eastern islands through mid week, while a strong upper level trough approaches from the west. This will lead to increasing showers across the state on Monday, with locally heavy rainfall and thunderstorms possible across the central and eastern islands Monday night through Wednesday night. A cooler and drier airmass will overspread the state Thursday through Friday, with fewer showers. A reinforcing cold front will then move down the island chain Friday night and Saturday bringing a band of showers with it. Trade winds are then expected to return next Sunday, with showers favoring windward and mauka areas.

Data Courtesy of NOAA.gov

Comments

This comments section is a public community forum for the purpose of free expression. Although Big Island Now encourages respectful communication only, some content may be considered offensive. Please view at your own discretion. View Comments

Newsletters

Get a quick summary of what’s happening on the Big Island with our daily & weekly email of news highlights.