Weather Review

Which is the BEST explanation for how air masses move across the United States?

• The prevailing westerlies move air masses from west to east across the United States?
• The trade winds move air masses from west to east across the United States.
• The jet stream moves air masses from the Pacific Ocean across the United States.
• The warm air of the Gulf Stream causes air masses to move from the Atlantic Ocean to the Pacific Ocean.

Which BEST describes a characteristic of the jet stream?

• It forms a boundary between a cold air mass and a warm air mass.
• It creates the high winds around the eye of a hurricane.
• It forces the hot air along the equator to rise to areas in North America.
• It causes high pressure air masses to rotate clockwise.

What type of cloud is usually associated with thunderstorms?

• cirrus
• stratus
• cumulus
• cumulonimbus

Which conditions are most likely to create a hurricane off the coast of North Carolina?

• Cool water temperatures and a tropical storm moving from the northeast.
• Cool water temperatures and a tropical storm moving from the southeast.
• Warm water temperatures and a tropical storm moving from the northeast.
• Warm water temperatures and a tropical storm moving from the southeast.

What will MOST LIKELY result when the jet stream moves south of North Carolina?

• North Carolina will experience tropical weather conditions.
• North Carolina will experience hot, dry weather.
• North Carolina will experience mild weather.
• North Carolina will experience cold weather.

Which correctly compares low- and high-pressure systems?

• A low-pressure system usually brings cool dry air and clear skies, while a high-pressure system brings clouds and precipitation.
• A low-pressure system usually brings clouds and precipitation, while a high-pressure system brings cool dry air and clear skies.
• A low-pressure system usually brings warm dry air and clear skies, while a high-pressure system usually brings warm moist air and precipitation.

Looking at the five-day forecast, the weather on Wednesday will most likely be...

• clear
• rainy
• cold 
• windy

Which methods of collecting weather data is MOST likely to be accurate?

• collecting daily from the same place at the same time.
• collecting daily from different places at the same times
• collecting weekly from different places at the same time
• collecting weekly from the same place at different times

Which moves clouds through the atmosphere?

• winds
• evaporation
• condensation

Which clouds indicate precipitation?

• cirrus
• stratus
• nimbus
• cumulus