WARM/COLD FRONT
what type of weather is in a cold front
Strong thunderstorms, Colder Temps
DEFINE OCCLUDED FRONT
A WARM AIR MASS IS TRAPPED BETWEEN 2 COLD AIR MASSES.
Where does water vapor come from
Evaporation from bodies of water.
What type of cluds does thunderstorms and tornadoes spawn in
cumulonimbus
Define atmosphere
The envelope of gases that surround our planet
Is a warm front with triangles or half circles
half circles
Define stationary front
A warm and a cold air mass meet, but neither is strong enough to move the other.
WHAT IS SLEET DIFFERENT THEN FREEZING RAIN
Sleet freezes as it falls through a layer of cold air
How does the temperature of the air affect the
amount of water vapor it can hold?
Warm air cna hold MORE vapor, COLD air can hold LESS, water vapor
How is saturated air different than air that is not
saturated?
Saturated air has a greater amount of water vapor in it than air that is not saturated.
Define Cold front
A QUICK moverment of cold air mass that moves under an Warm air mass, causes stormy weather.
What Weather is found in a occluded front.
Severe, strong storms
WHY FREEZING RAIN DIFFERENT THEN SLEET
Freezing rain freezes when it hits a cold surface
What instrument is used to measure relative
humidity?
Temperature?
Phycrometer
thermometer
What is the process for Hail formation,/
In a cumulonimbus cloud, strong winds pick up rain drops and push them up high, they freeze, fall and
get covered in rain, wind picks them up and pushes them high again, freezes again, cycle keeps
repeating until the wind isn’t strong enough to push the hail up.
Define Warm Front
A warm air mass slowly moves in, rises up and over the cool air mass
What weather is found in a stationary front
Many days of rain
DEFINE RELATIVE HUMIDITY
The % of water vapor actually in the air versus the amount of water vapor the air can hold at that temp
What moves air masses? In what direction do they
usually move?
Prevailing westerlies push the air masses from west to east.
Define dew point. What happens at dew point?
The temperature at which water vapor turns into condensation.
(saturation occurs, dew forms)
WHAT TYPE OF WEATHER IS IN A WARM FRONT
Cloudy Skies, Showers, Light Rain, Warmer Temps, Higher Humidity.
What do Occluded and Stationary fronts have in common
They both have heat and cold mixed in them
What is weather
The condition of Earths atmosphere at a particular time and place
HOW DOES THE SPEED OF A COLD FRONT COMPARE TO THE SPEED OF A WARM FRONT
COLD FRONTS MOVE QUICKLY; WARM FRONTS MOVE SLOWLY
What are some differences between a cyclone and
an anticyclone? (think wind and types of weather)
Their winds spin in different directions.
cyclone—low pressure and cloudy/rainy weather
anticyclone—high pressure and clear, dry weather.