Weather and Atmospheric Conditions Quiz

The weather map below shows isobars that are labeled in millibars (mb). Three isobars are labeled X, Y, and Z. What are the values for the isobars labeled X, Y, and Z?

• X = 1012 mb; Y = 1016 mb; Z = 1000 mb

• X = 1010 mb; Y = 1016 mb; Z = 1008 mb

• X = 1010 mb; Y = 1024 mb; Z = 1000 mb

• X = 1012 mb; Y = 1024 mb; Z = 1008 mb

The presence of which atmospheric condition will most likely result in clear skies in Binghamton, New York?

• high humidity

• high-pressure center

• increasing wind speed

• dewpoint equal to air temperature

Earth's surface winds generally blow from regions of higher ________.

• air temperature toward regions of lower air temperature

• air pressure toward regions of lower air pressure

• latitudes toward regions of lower latitudes

• elevations toward regions of lower elevations

In the United States, most tornadoes are classified as intense ________.

• low-pressure funnel clouds that spin clockwise

• low-pressure funnel clouds that spin counterclockwise

• high-pressure funnel clouds that spin clockwise

• high-pressure funnel clouds that spin counterclockwise

Which map information indicates that the wind velocity is greater at location Z than at location X?

• Location Z is closer to the ocean

• The isobars are closer together at Z

• The latitude of location X is greater

• Location X is closer to the front

Which weather instrument was used to measure wind speed at station D?

• barometer

• thermometer

• psychrometer

• anemometer

Surface winds within this low-pressure system most likely are flowing:

• toward the center in a clockwise pattern

• toward the center in a counterclockwise pattern

• away from the center in a clockwise pattern

• away from the center in a counterclockwise pattern

Base your answers to questions on the weather map below, which shows a low-pressure system over the central United States. Isobars are labeled in millibars. Points A, B, C, and D represent locations on Earth's surface. The circulation of surface winds associated with this low-pressure system is:

• clockwise and toward the center of the low

• clockwise and away from the center of the low

• counterclockwise and toward the center of the low

• counterclockwise and away from the center of the low

Base your answers to questions on the weather map below, which shows a low-pressure system over the central United States. Isobars are labeled in millibars. Points A, B, C, and D represent locations on Earth's surface. The air pressure at the center of this low is:

• 991 mb

• 994 mb

• 997 mb

• 1001 mb

Describe the surface wind circulation around the high-pressure center (H) that is located south of Newfoundland.