High-pressure systems stop air from rising into the colder regions of the atmosphere where water can condense. What will MOST likely result if a high-pressure system remains in an area for a long period of time?

The arrows on the map represent the movement of air masses across North America.

Air mass in Region 1 Canada, would MOST likely bring which weather conditions to a region?

A stationary air mass over the Gulf of Mexico would typically be

Convection currents are formed in the atmosphere when cold air pushes warm air upward.

Which property of the air is MOST responsible for the formation of convection currents?

Which is most often a result of a warm air mass moving over a cooler air mass?

Which has the greatest influence on wind speed?

Tornadoes can occur throughout the United States. One area where most of the tornadoes occur is known as Tornado Alley.

Which environmental factors MOST likely impact the formation of tornadoes in this area?

How does air density affect air pressure in a cyclonic storm?

Which statement BEST explains why the force of a hurricane diminishes as the hurricane moves over land?

The air masses that interact to form hurricanes and cyclones rise and fall due to changes in air density and air pressure. Why do these storms also spin?

The table below shows lowest air pressure recorded for four hurricanes.

Which hurricane had the highest wind speed?

RitaKatrinaHugoKarl895 mbar (hPa);26.43 (inHg)902 mbar (hPa);26.64 (inHg)918 mbar (hPa);27.11 (inHg)956 mbar (hPa);28.23 (inHg)

Hurricanes typically form during predictable times of year and in certain locations on Earth. Which factor BEST enables climatologists to forecast the time and location of hurricane formation?

Which are widely considered to be safe locations during a hurricane?

The high winds and torrential rains of a hurricane can cause damage to cities and natural areas in its path. A hurricane is likely to gain the MOST strength when it travels over which of the following?

A seven-day forecast is shown below.

Golfing in severe weather can be dangerous due to the possibility of lightning strikes. According to the forecast, which of these would be the worst day to plan a golf outing?

The radar image shows weather that is affecting a portion of the United States.

Which type of severe weather is clearly shown by this radar image?

The map shows a typical jet stream pattern in the United States during spring months.

During one spring, the jet stream shifted southward, moving across Texas and northern Florida. How would weather in North Carolina that spring compare to that of a typical year?

The map below shows yearly averages for the number of severe thunderstorm watches.

Based on the information in the map, which region is MOST likely to have a severe thunderstorm watch in effect during storm season?

Which storm most likely develops as air masses interact with the warm water in the Indian and western Pacific ocean?

Which statement describes the general movement of air masses?

Which most likely occurs when a fast-moving cold air mass moves into a region of warmer, moist air?

Which contributes to the formation of hurricanes during the late summer?

The weather station model shown below indicates that winds are coming from the

The diagrams represent station models showing weather data collected at four different times during one day at a location in the United States.

}The diagrams represent station models showing weather data collected at four different times during one day at a location in the United States.

Which weather map symbol is associated with extremely low air pressure?

Cloud formation is likely to occur in rising air because rising air:

How does a cold front form?

Jet stream winds over the United States generally move from

How fast is the wind blowing at this weather station?

Which map best represents the surface wind pattern around Northern Hemisphere high-pressure and low-pressure centers?