Weather Alert in Pennsylvania
Winter Weather Advisory issued February 10 at 9:25PM EST until February 11 at 3:00PM EST by NWS Pittsburgh PA
AREAS AFFECTED: Westmoreland Ridges; Fayette Ridges; Higher Elevations of Indiana; Ridges of Eastern Monongalia and Northwestern Preston; Preston; Eastern Preston; Western Tucker; Eastern Tucker
DESCRIPTION: * WHAT...Mixed precipitation expected. Total snow accumulations up to one inch and ice accumulations around a light glaze. Winds gusting as high as 35 mph. * WHERE...Portions of southwest and western Pennsylvania and northern West Virginia. * WHEN...From 3 AM to 3 PM EST Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions. The hazardous conditions will impact the Wednesday morning commute.
INSTRUCTION: Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury. Please report snow or ice accumulations by calling 412-262-1988, posting to the NWS Pittsburgh Facebook page, or using X @NWSPittsburgh.
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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
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
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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