Weather Alert in Pennsylvania

Recent Locations: Pasadena, CA   Visalia, CA   Erie, PA  
Current Alerts for Erie, PA: Extreme Cold Warning Winter Weather Advisory

Winter Weather Advisory issued February 5 at 9:57PM EST until February 7 at 1:00AM EST by NWS Cleveland OH

AREAS AFFECTED: Southern Erie

DESCRIPTION: * WHAT...Snow expected. Total snow accumulations between 3 and 5 inches. Winds gusting as high as 40 mph may will produce patchy to areas of blowing snow Friday evening. * WHERE...Southern Erie County. * WHEN...From 7 AM Friday to 1 AM EST Saturday. * IMPACTS...Plan on slippery conditions with with slower travel likely The hazardous conditions could impact the Friday morning and evening commutes. Blowing snow may reduce visibility less than a mile at times. * ADDITIONAL DETAILS...A broken line of snow squalls or heavier burst of snow may develop along an Arctic front as it pushes through the area Friday evening.

INSTRUCTION: Slow down and use caution while traveling. The Pennsylvania Department of Transportation and Pennsylvania Turnpike Commission strongly encourage motorists to heed all travel restrictions and delay unnecessary travel. Visit www.511pa.com for the latest travel, roadway, and traffic conditions.

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Current U.S. National Radar--Current

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North America Water Vapor (Moisture)

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Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

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

Weather Topic: What is Evaporation?

Home - Education - Precipitation - Evaporation

Evaporation Next Topic: Fog

Evaporation is the process which returns water from the earth back to the atmosphere, and is another crucial process in the water cycle.

Evaporation is the transformation of liquid into gas, and it happens because molecules are excited by the application of energy and turn into vapor. In order for water to evaporate it has to be on the surface of a body of water.

Next Topic: Fog

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