Forecast Details for Ernest, PA

Recent Locations: Coyanosa, TX East Butler, PA Ernest, PA

Overnight: Showers likely and possibly a thunderstorm, then rain and possibly a thunderstorm after 2am. Some of the storms could be severe. Low around 59. Southwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday: Rain and possibly a thunderstorm before 4pm, then rain likely between 4pm and 5pm, then rain likely and possibly a thunderstorm after 5pm. High near 68. Southwest wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday Night: Rain and possibly a thunderstorm before 2am, then a chance of rain. Low around 55. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday: A chance of rain before 11am, then a chance of rain and thunderstorms between 11am and 2pm, then rain likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night: Rain likely and possibly a thunderstorm before 8pm, then a chance of rain and thunderstorms between 8pm and 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 60. Southeast wind around 8 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday: A chance of rain, with thunderstorms also possible after 11am. Partly sunny, with a high near 78. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night: A chance of rain and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.

Saturday: Rain likely, mainly after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 60%.

Saturday Night: Rain likely. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.

Sunday: Rain likely, mainly before 2pm. Mostly cloudy, with a high near 59. Chance of precipitation is 60%.

Sunday Night: A chance of rain. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.

Monday: Mostly sunny, with a high near 52.

Monday Night: Mostly clear, with a low around 33.

Tuesday: Mostly sunny, with a high near 60.

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National Weather Forecast--Current

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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