Chapter 2 Book I

7. Measure of the amount of moisture held in the air compared with the amount it can hold at a given temperature; can range from 0 percent to 100 percent.
8. Large, severe storm that forms over tropical oceans, hinds of at least 120 km/h and loses power when it reaches land.
10. Indicates weather conditions at a specific location, using a combination of symbols on a map.
11. Boundary between two air masses with different temperatures, density, or moisture; can be cold, warm, occluded, and stationary.
12. Violent, whirling windstorm that crosses land in a narrow path and can result from wind shears inside a thunderhead.
14. Lines drawn on a weather map that connect points having equal atmospheric pressure; also indicate the location of high- and low- pressure areas and can show wind speed.

1. Water falling from clouds- including rain, snow, sleet, and hail- whose form is determined by air temperature
2. Amount of water vapor held in the air.
3. Winter storm that lasts at least three hours with temperature of -12 degrees Celsius or below. Poor visibility; and winds of at least 51 km/h.
4. state of the atmosphere at a specific time and place, determined by factors including air pressure, amount of moisture in the air, temperature, wind, and precipitation.
5. Large body of air that has the same characteristics of temperature and moisture content as the part of Earth’s surface over which it is formed.
6. Studies weather and uses information from Doppler radar, weather satellites, compouters, and other instruments to make weather maps and provide forecasts.
9. A stratus cloud that forms when air is cooled to its dew point near the ground.
13. Temperature at which air is saturated and condensation forms.