High air pressure
- Moves from West to East across the United States
- Measured with a barometer
- Displayed on a weather map with isobars (lines of equal air pressure)
Low air pressure
Low air pressure
- Moves from West to East across the United States
- Measured with a barometer
- Displayed on a weather map with isobars (lines of equal air pressure)
- Warm air
- Rising air (less dense)
- Rainy weather
- More moisture
High air pressure
- Cooler air
- Sinking air (more dense)
- Nice weather
- Less moisture
- What does the letter H refer to?
- The numbered lines on the weather map connect locations with the same (temperature, pressure, wind speed)
- What type of weather will the low pressure bring?
What are high and low air pressures?