Here are some helpful facts about weather...

* When altitude goes up, temperature goes down.

* When dew point goes down, cloud base (altitude) goes up.

* When temperature and moisture go up, pressure goes down.

*When temperature goes up, density goes down.

* When temperature goes up, relative humidity goes down.

When there is low pressure, there will probably be bad weather.

* When temperature and dewpoint get closer together, there is more chance of precipitaion.

*Clouds consist of water droplets and condensation nuclei (not water vapor).

*When it is warm and moist, there is low pressure (cold + dry = high pressure).

Air Masses-

-form on land = continental (c)

-form over water = maritime (m)

-form in high altitudes = polar (p)

- form in low altitudes = tropical (t)

* there are two types of air masses.

Low Pressure Air Masses

-are called lows and cyclones

-in a cyclone, the wind blows toward the center in a counter clockwise motion due to the Coriolis Effect (only in the northern hemisphere).

High Pressure Systems

-the pressure is the greatest in the center.

-they rotate clockwise (in the northern hemisphere) away from the center.

:) :D :O