Air Pressure & Weather

The weather map shows air pressures in millibars.

Which set of conditions best describes the weather at the area of lowest air pressure?

• bright sun with no wind

• partly cloudy with no wind

• mostly sunny with light winds

• overcast skies with strong winds

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

When watching the local meteorologist on television or when looking at a weather map online, there are often maps with an "L", as seen below. The "L" represents an area of low atmospheric pressure on the surface of the Earth.

What is most likely occurring in the atmosphere in the area located at the "L" on the map.

• The air is descending at this location causing clear skies.

• The air is descending at this location causing cloudy skies.

• The air is rising at this location causing clear skies.

• The air is rising at this location causing cloudy skies.

Tags

NGSS.MS-ESS2-5

The weather map shows the weather conditions for one day across the United States.

Based on the weather map, which city will most likely experience decreasing temperatures during the next 24 hours?

• Denver, because it is raining there

• Atlanta, because a warm front is approaching

• Houston, because it is in a high-pressure area

• Minneapolis, because a cold front is approaching

Tags

NGSS.MS-ESS2-5

Which of the following statements accurately describes the atmospheric patterns that influence local weather?

• As the temperature of air changes, the pressure of the air also changes. This difference causes air masses, resulting in high and low pressure systems and warm and cold fronts that move across the globe.

• High and low pressure systems and warm and cold fronts typically move from east to west across the globe bringing temperature changes and precipitation caused by convection in the atmosphere and oceans.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6