Weather Watch Info Page
Name ___________________#____
Map Symbol Key
___ snow
___ thunderstorm
___ partly sunny
___ hail & rain
___ rain clouds
___ sun & rain
___ heavy clouds & sun
___ wind
http://www.clker.com/clipart-sun-and-rain-weather-symbols.html
0ver 
___ heavy clouds
___ severe storm
___ sunny & fair
___ thunder clouds
What's a Weather Front?
An air mass is a large body of air that has similar moisture (density) and
temperature characteristics. A front is a transition zone between two air masses.
A cold front is a warm-cold air boundary with the colder air replacing the
warmer. As a cold front moves into an area, the heavier cool air pushes under the
lighter warm air that it is replacing. The warm air becomes cooler as it rises. If
the rising air is humid enough, the water
vapor it contains will condense into clouds
and precipitation may fall.
As the cold front moves, warm, moist
unstable air is usually replaced by cold, dry
stable air.
A warm front is the boundary between warm and cool (or cold) air when the
warm air is replacing the cold air. Warm air at the surface pushes above the cool
air mass, making clouds and storms. Warm fronts often bring stormy weather.
Warm fronts often form on the east side of low-pressure systems where
warmer air from the south is pushed north.
A warm front typically replaces cool dry
air with warm moist air.
http://science.pppst.com/weather/fronts.html