Forecast Details for Captain Cook, HI

Recent Locations: Holly Ridge, NC Brewster, KS Captain Cook, HI

Labor Day: Scattered showers, mainly after noon. Mostly cloudy, with a high near 82. West northwest wind 5 to 9 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

Tonight: Scattered showers. Mostly cloudy, with a low around 68. Northwest wind 5 to 9 mph becoming calm. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

Tuesday: Partly sunny, with a high near 82. Calm wind becoming northwest 5 to 7 mph in the afternoon.

Tuesday Night: Isolated showers. Mostly cloudy, with a low around 68. Northwest wind around 6 mph. Chance of precipitation is 20%.

Wednesday: Partly sunny, with a high near 82. West northwest wind around 5 mph becoming calm in the afternoon.

Wednesday Night: Isolated showers before midnight. Mostly cloudy, with a low around 68. Calm wind becoming north northwest around 6 mph. Chance of precipitation is 20%.

Thursday: Mostly sunny, with a high near 82. West wind 3 to 6 mph.

Thursday Night: Isolated showers before midnight. Partly cloudy, with a low around 68. North northwest wind around 6 mph becoming calm after midnight. Chance of precipitation is 20%.

Friday: Mostly sunny, with a high near 83. Calm wind becoming west around 5 mph.

Friday Night: Isolated showers before midnight. Partly cloudy, with a low around 69. North northwest wind 3 to 6 mph. Chance of precipitation is 20%.

Saturday: Mostly sunny, with a high near 83. West northwest wind around 5 mph becoming calm in the afternoon.

Saturday Night: Isolated showers. Partly cloudy, with a low around 69. Light northwest wind. Chance of precipitation is 20%.

Sunday: Isolated showers. Mostly sunny, with a high near 83. Light west wind. Chance of precipitation is 20%.

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Current U.S. National Radar--Current

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

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Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds

Weather Topic: What is Sleet?

Home - Education - Precipitation - Sleet

Sleet Next Topic: Snow

Sleet is a form of precipitation in which small ice pellets are the primary components. These ice pellets are smaller and more translucent than hailstones, and harder than graupel. Sleet is caused by specific atmospheric conditions and therefore typically doesn't last for extended periods of time.

The condition which leads to sleet formation requires a warmer body of air to be wedged in between two sub-freezing bodies of air. When snow falls through a warmer layer of air it melts, and as it falls through the next sub-freezing body of air it freezes again, forming ice pellets known as sleet. In some cases, water droplets don't have time to freeze before reaching the surface and the result is freezing rain.

Next Topic: Snow