Forecast Details for Gap, PA

Recent Locations: Philadelphia, PA York Beach, ME Gap, PA

Current Alerts for Gap, PA: Winter Storm Warning

Overnight: Snow. The snow could be heavy at times. Widespread blowing snow, mainly after 3am. Low around 30. Blustery, with a north wind 18 to 21 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 5 to 9 inches possible.

Monday: Snow likely, mainly before 2pm. The snow could be heavy at times. Widespread blowing snow, mainly before 7am. Cloudy, with a high near 35. Breezy, with a northwest wind around 22 mph, with gusts as high as 41 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

Monday Night: Mostly cloudy, with a low around 18. Northwest wind 16 to 18 mph, with gusts as high as 30 mph.

Tuesday: Mostly sunny, with a high near 29. Northwest wind 10 to 15 mph, with gusts as high as 26 mph.

Tuesday Night: Snow showers likely after 1am. Mostly cloudy, with a low around 20. Light and variable wind becoming south 5 to 10 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Wednesday: A slight chance of rain and snow showers before 1pm. Partly sunny, with a high near 42. Chance of precipitation is 20%.

Wednesday Night: Partly cloudy, with a low around 27.

Thursday: Rain and snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 45. Chance of precipitation is 70%.

Thursday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.

Friday: Mostly sunny, with a high near 39.

Friday Night: Mostly clear, with a low around 29.

Saturday: Sunny, with a high near 49.

Saturday Night: Partly cloudy, with a low around 35.

Sunday: Partly sunny, with a high near 47.

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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 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

Weather Topic: What are Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

Shelf Clouds Next Topic: Sleet

A shelf cloud is similar to a wall cloud, but forms at the front of a storm cloud, instead of at the rear, where wall clouds form.

A shelf cloud is caused by a series of events set into motion by the advancing storm; first, cool air settles along the ground where precipitation has just fallen. As the cool air is brought in, the warmer air is displaced, and rises above it, because it is less dense. When the warmer air reaches the bottom of the storm cloud, it begins to cool again, and the resulting condensation is a visible shelf cloud.

Next Topic: Sleet