Forecast Details for Erwinna, PA

Recent Locations: Erwinna, PA  
Today: Sunny, with a high near 31. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight: Mostly clear, with a low around 17. West wind around 5 mph.
Thursday: A chance of snow showers, mainly after 4pm. Increasing clouds, with a high near 31. Southwest wind around 5 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Thursday Night: A chance of snow showers, mainly before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 21. West wind around 5 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Friday: Sunny, with a high near 39. West wind around 5 mph.
Friday Night: Partly cloudy, with a low around 26.
Saturday: Rain likely after 1pm. Mostly cloudy, with a high near 41. Chance of precipitation is 60%.
Saturday Night: A chance of rain before 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Sunday: A chance of snow after 1pm. Partly sunny, with a high near 37. Chance of precipitation is 30%.
Sunday Night: A chance of snow before 1am. Mostly cloudy, with a low around 16. Chance of precipitation is 30%.
M.L.King Day: Mostly sunny, with a high near 25.
Monday Night: Partly cloudy, with a low around 6.
Tuesday: Mostly sunny, with a high near 16.

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Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

Current U.S. National Radar

National Weather Forecast--Current

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Today's National Weather Map

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

Tomorrows National Weather Map

North America Water Vapor (Moisture)

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North American Water Vapor Map

Weather Topic: What are Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

Cirrocumulus Clouds Next Topic: Cirrostratus Clouds

Cirrocumulus clouds form at high altitudes (usually around 5 km) and have distinguishing characteristics displayed in a fine layer of small cloud patches. These small cloud patches are sometimes referred to as "cloudlets" in relation to the whole cloud formation.

Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the water droplets in the cloud freeze into ice crystals and the cloud becomes a cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud formations generally pass rapidly.

Next Topic: Cirrostratus Clouds

Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

Cirrus Clouds Next Topic: Condensation

Cirrus clouds are high-level clouds that occur above 20,000 feet and are composed mainly of ice crystals. They are thin and wispy in appearance.

What do they indicate?
They are often the first sign of an approaching storm.

Next Topic: Condensation