Forecast Details for South Colby, WA

Recent Locations: South Colby, WA  
Tonight: Increasing clouds, with a low around 30. Calm wind.
Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 44. Light south wind.
Wednesday Night: Increasing clouds, with a low around 32. Calm wind.
Thursday: A slight chance of rain and snow between 10am and 1pm, then rain likely. Mostly cloudy, with a high near 43. South wind 3 to 6 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night: Rain. Low around 39. South southeast wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday: Rain. High near 47. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night: Rain before 1am, then rain, possibly mixed with snow. Low around 34. Chance of precipitation is 100%. Little or no snow accumulation expected.
Saturday: Rain and snow showers. Cloudy, with a high near 41.
Saturday Night: Snow showers. Mostly cloudy, with a low around 31.
Sunday: Snow showers likely before 1pm, then rain and snow showers likely. Mostly cloudy, with a high near 40.
Sunday Night: Rain and snow showers likely. Mostly cloudy, with a low around 29.
Monday: A chance of snow showers. Mostly cloudy, with a high near 37.
Monday Night: A chance of rain and snow showers. Mostly cloudy, with a low around 29.
Tuesday: A chance of rain and snow showers. Partly sunny, with a high near 36.

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Current U.S. National Radar--Current

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Current U.S. National Radar

National Weather Forecast--Current

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Today's National Weather Map

National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

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North American Water Vapor Map

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