Forecast Details for Lawrence, MA

Recent Locations: Sierra Vista, AZ Rome City, IN Lawrence, MA

Tonight: Mostly clear, with a low around 66. South wind 6 to 10 mph, with gusts as high as 22 mph.

Saturday: A slight chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 89. South wind 7 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night: Showers and thunderstorms before 2am, then showers between 2am and 5am, then showers and possibly a thunderstorm after 5am. Patchy fog after 10pm. Low around 57. West wind 3 to 8 mph. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday: Showers and possibly a thunderstorm before 2pm, then a chance of showers. High near 70. Northwest wind 3 to 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Sunday Night: A slight chance of showers before 9pm. Partly cloudy, with a low around 50. Light west wind. Chance of precipitation is 20%.

Monday: Sunny, with a high near 75. Northwest wind around 6 mph.

Monday Night: Mostly clear, with a low around 49. Calm wind.

Tuesday: Sunny, with a high near 73. Calm wind becoming east around 6 mph in the morning.

Tuesday Night: Partly cloudy, with a low around 50. Light and variable wind.

Wednesday: Partly sunny, with a high near 72. Calm wind becoming southeast around 6 mph in the afternoon.

Wednesday Night: Mostly cloudy, with a low around 52. Light and variable wind.

Thursday: Mostly sunny, with a high near 79. Calm wind becoming northwest around 6 mph in the afternoon.

Thursday Night: Partly cloudy, with a low around 49. North wind 3 to 5 mph.

Friday: Sunny, with a high near 70. North wind around 6 mph.

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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 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

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