Forecast Details for Mountain Top, PA

Recent Locations: Collins, NY Alpaugh, CA Mountain Top, PA

This Afternoon: Mostly cloudy, then gradually becoming sunny, with a high near 63. West wind around 6 mph.

Tonight: Partly cloudy, with a low around 47. Light and variable wind becoming east around 6 mph after midnight.

Thursday: Sunny, with a high near 72. Northwest wind 6 to 10 mph.

Thursday Night: Partly cloudy, with a low around 50. Northeast wind around 6 mph.

Friday: Mostly sunny, with a high near 67. Northeast wind around 6 mph.

Friday Night: A chance of showers. Mostly cloudy, with a low around 46. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

Saturday: Showers. High near 51. Chance of precipitation is 80%.

Saturday Night: Showers, mainly before 2am. Low around 42. Chance of precipitation is 80%.

Sunday: A chance of showers before 2pm. Partly sunny, with a high near 57. Chance of precipitation is 30%.

Sunday Night: Partly cloudy, with a low around 41.

Monday: Mostly sunny, with a high near 63.

Monday Night: A chance of showers. Mostly cloudy, with a low around 46. Chance of precipitation is 40%.

Tuesday: Showers likely. Mostly cloudy, with a high near 60. Chance of precipitation is 70%.

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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 Contrails?

Home - Education - Cloud Types - Contrails

Next Topic: Cumulonimbus Clouds

A contrail is an artificial cloud, created by the passing of an aircraft.

Contrails form because water vapor in the exhaust of aircraft engines is suspended in the air under certain temperatures and humidity conditions. These contrails are called exhaust contrails.

Another type of contrail can form due to a temporary reduction in air pressure moving over the plane's surface, causing condensation. These are called aerodynamic contrails.

When you can see your breath on a cold day, it is also because of condensation. The reason contrails last longer than the condensation from your breath is because the water in contrails freezes into ice particles.

Next Topic: Cumulonimbus Clouds

Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle