Weather Vocab

6. a map or chart that shows the weather conditions at a specific point in time over a specific region
9. global air circulation patterns within the atmosphere held to Earth by gravity and warmed as heat radiates from Earth; influenced by convection of warm, less dense air (rises and spreads out) and cold, dense air (sinks)
11. a body of air extending over a large area (1,000 miles or more) that develops or retains specific characteristics or pressure, temperature, and humidity
12. An instrument that measures the amount of atmospheric pressure
13. An air mass with greater atmospheric pressure than the surrounding air masses; air moves away from the center of the high pressure, traveling in a clockwise direction in the northern hemisphere and a counterclockwise direction in the southern hemisphere
14. the border between an advancing cold air mass and a retreating warm air mass

1. measures relative humidity
2. amount of water vapor or moisture content in air
3. An air mass with less atmospheric pressure than the surrounding air masses; air moves toward the area of low pressure, traveling in a counterclockwise direction in the northern hemisphere and a clockwise direction in the southern hemisphere
4. the force exerted by the atmosphere on Earth's surface by the weight of the air above the surface
5. air temperature
6. measures wind direction
7. the day to day state of the atmosphere
8. the boundary between an advancing warm air mass and a receding cooler air mass
10. measures wind speed