Forecast Details for Sullivan, NH

Recent Locations: Sullivan, NH  
Current Alerts for Sullivan, NH: Flood Watch
This Afternoon: Rain. High near 45. North wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight: Rain and snow likely before 3am, then a chance of snow. Cloudy, with a low around 33. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday: Isolated snow showers before 9am. Mostly cloudy, with a high near 43. Northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Friday Night: Partly cloudy, with a low around 29. Blustery, with a northwest wind 20 to 25 mph, with gusts as high as 40 mph.
Saturday: Sunny, with a high near 45. Breezy, with a northwest wind 15 to 25 mph, with gusts as high as 40 mph.
Saturday Night: Partly cloudy, with a low around 28.
Sunday: Mostly sunny, with a high near 46.
Sunday Night: Partly cloudy, with a low around 27.
Monday: Mostly sunny, with a high near 50.
Monday Night: A chance of rain and snow after 2am. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Tuesday: Rain and snow likely. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.
Tuesday Night: Rain and snow likely. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Wednesday: Rain and snow likely. Mostly cloudy, with a high near 41. Chance of precipitation is 60%.

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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

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North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

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Weather Topic: What are Mammatus Clouds?

Home - Education - Cloud Types - Mammatus Clouds

Mammatus Clouds Next Topic: Nimbostratus Clouds

A mammatus cloud is a cloud with a unique feature which resembles a web of pouches hanging along the base of the cloud.

In the United States, mammatus clouds tend to form in the warmer months, commonly in the Midwest and eastern regions.

While they usually form at the bottom of a cumulonimbis cloud, they can also form under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds warn that severe weather is close.

Next Topic: Nimbostratus Clouds

Weather Topic: What is Precipitation?

Home - Education - Precipitation - Precipitation

Precipitation Next Topic: Rain

Precipitation can refer to many different forms of water that may fall from clouds. Precipitation occurs after a cloud has become saturated to the point where its water particles are more dense than the air below the cloud.

In most cases, precipitation will reach the ground, but it is not uncommon for precipitation to evaporate before it reaches the earth's surface. When precipitation evaporates before it contacts the ground it is called Virga. Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog and mist are not considered precipitation because the water vapor which constitutes them isn't dense enough to fall to the ground.

Next Topic: Rain