Forecast Details for Whitehall, PA

Recent Locations: Whitehall, PA  
Overnight: Areas of fog. Otherwise, mostly cloudy, with a low around 32. Calm wind.
Christmas Day: Areas of fog before 8am. Otherwise, mostly cloudy, with a high near 39. Calm wind.
Wednesday Night: Mostly cloudy, with a low around 30. Calm wind.
Thursday: Mostly sunny, with a high near 44. Light northeast wind.
Thursday Night: Partly cloudy, with a low around 31. East wind around 5 mph.
Friday: A slight chance of rain after 1pm. Partly sunny, with a high near 50. Chance of precipitation is 20%.
Friday Night: Rain likely, mainly after 1am. Mostly cloudy, with a low around 41. Chance of precipitation is 70%.
Saturday: Rain likely. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.
Saturday Night: Rain. Low around 50. Chance of precipitation is 80%.
Sunday: Rain. High near 57. Chance of precipitation is 80%.
Sunday Night: Rain likely. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.
Monday: A chance of rain. Mostly cloudy, with a high near 52. Chance of precipitation is 50%.
Monday Night: A chance of rain. Mostly cloudy, with a low around 40. Chance of precipitation is 30%.
Tuesday: A chance of rain. Mostly cloudy, with a high near 51. Chance of precipitation is 50%.

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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

The Current National Weather Forecast and National Weather Map are shown below.

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)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

North American Water Vapor Map

Weather Topic: What are Stratocumulus Clouds?

Home - Education - Cloud Types - Stratocumulus Clouds

Stratocumulus Clouds Next Topic: Stratus Clouds

Stratocumulus clouds are similar to altocumulus clouds in their fluffy appearance, but have a slightly darker shade due to their additional mass.

A good way to distinguish the two cloud types is to hold your hand out and measure the size of an individual cloud; if it is the size of your thumb it is generally an altocumulus cloud, if it is the size of your hand it is generally a stratocumulus cloud.

It is uncommon for stratocumulus clouds to produce precipitation, but if they do it is usually a light rain or snow.

Next Topic: Stratus Clouds

Weather Topic: What are Wall Clouds?

Home - Education - Cloud Types - Wall Clouds

Wall Clouds Next Topic: Altocumulus Clouds

A wall cloud forms underneath the base of a cumulonimbus cloud, and can be a hotbed for deadly tornadoes.

Wall clouds are formed by air flowing into the cumulonimbus clouds, which can result in the wall cloud descending from the base of the cumulonimbus cloud, or rising fractus clouds which join to the base of the storm cloud as the wall cloud takes shape.

Wall clouds can be very large, and in the Northern Hemisphere they generally form at the southern edge of cumulonimbus clouds.

Next Topic: Altocumulus Clouds