Forecast Details for Sparta, NJ

Recent Locations: Sparta, NJ  
Current Alerts for Sparta, NJ: Freeze Warning
Overnight: Areas of frost after 3am. Otherwise, mostly clear, with a low around 31. Northeast wind around 10 mph.
Thursday: Areas of frost before 9am. Otherwise, sunny, with a high near 57. Northeast wind 5 to 10 mph.
Thursday Night: Mostly clear, with a low around 33. South wind around 5 mph becoming calm after midnight.
Friday: Sunny, with a high near 61. Calm wind becoming south around 5 mph in the afternoon.
Friday Night: Mostly clear, with a low around 37. South wind around 5 mph.
Saturday: Partly sunny, with a high near 59.
Saturday Night: A chance of showers after 2am. Mostly cloudy, with a low around 45. Chance of precipitation is 30%.
Sunday: A chance of showers before 8am. Partly sunny, with a high near 74. Chance of precipitation is 30%.
Sunday Night: Partly cloudy, with a low around 56.
Monday: Mostly sunny, with a high near 82.
Monday Night: Mostly cloudy, with a low around 57.
Tuesday: A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 50%.
Tuesday Night: A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Wednesday: Mostly sunny, with a high near 70.

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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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Tomorrows National Weather Map

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