WX 201 Exam Bundle with Complete Solutions (100% Pass)

What are constant pressure surfaces? - Answer-Constant pressure at all points In regard to constant pressure surfaces, where do higher heights form? - Answer-Over warm air In regard to constant pressure surfaces, what do high heights correspond to region wise? - Answer-Regions of high pressure...

Analysis Chart - Answer-Depict actual data obtained at a given observation time Forecast Chart - Answer-Computer model charts predicting future conditions of the atmosphere; surface charts and upper level charts are created Constant altitude charts - Answer-All locations at the same altitude a...

Atmospheric Charts - Answer-• Contours: - Isobars or height contours (solid), - isotherms (long dash), or - isotachs (short-dash) • Include station models at given stations • Lows, highs, troughs, ridges, fronts Isobaric charts - Answer-• Acquire weather balloon (radiosonde), satelli...

Upper-level winds in the middle latitudes of both hemispheres generally blow from ____. - Answer-The west The pressure gradient force is directed from higher pressure toward lower pressure - Answer-at all places on Earth. The Coriolis force acts at a ____ degree angle to the wind. - Answer-90 ...

The land/sea breeze, lake, breeze, and mountain/valley breeze are examples of - Answer-thermal circulations Longwaves in the middle and upper troposphere usually have lengths on the order of - Answer-thousands of kilometers in the Northern Hemisphere, air found to the north of the polar front ...

What is a cloud? - Answer-a volume of atmosphere containing numerous water droplets and/or ice particles What ingredients are necessary for cloud development? - Answer--Abundant water vapor -Condensation nuclei particles -A cooling mechanism What is supercooled water? At what temperature do...

what conditions are necessary for thunderstorm development - Answer-conditional instability, layers of atmospheric moisture, lifting mechanism what additional condition is necessary for severe thunderstorm - Answer-1 diameter hail, surface wind gusts at least 50kts, tornado what is the life cy...

If temperature increases with increasing height (as you go up), it is called: - Answer-temperature inversion and a negative lapse rate Temperature increases with height in the ________, which is also the warmest of any layer in the atmosphere. - Answer-thermosphere The average annual precipit...

A dry line is defined as a ______ boundary - Answer-moisture (dewpoint) Which of the following air masses is most associated with desert air? - Answer-Continental Tropics (cT) In a Continental Polar (CP) air mass, air is typically: - Answer-cool and humid A warm front is identified with a(n...

The Atmosphere - Answer-aerosol (a.k.a. particulates) rain, drizzle, fog, snow, ice crystals, cloud droplets Permanent gas - Answer-Nitrogen [N2]=78% Oxygen [02]=21% Others (Ar, Ne, He, Kr, H)=1% Variable gas - Answer-[H2O] -0 to 4% (highly variable) -Most abundant variable gas• [CO2] ...

Which of the following air masses is not typically seen in the U.S. in winter? Maritime polar Continental tropical Maritime tropical Continental polar - Answer-Continental tropical The continental arctic (cA) air mass is usually produced at high latitudes by persistent: - Answer-Radiational c...

Chemicals called __ break down ozone molecules - Answer-chlorofluorocarbons Since the turn of this century, CO2 in the atmosphere has: - Answer-been increasing in concentration In a volume of air near the earth's surface, ____ occupies 78 percent and ____ occupies nearly 21 percent. - Answe...

Variable gasses in the atmosphere - Answer-CO2 , Water Vapor , O3 (ozone) , CH4(methane) Permanent gasses in the atmosphere - Answer-Oxygen (O2) , Nitrogen (N2) , Nobel Gasses Characteristics of a variable gas - Answer-Concentration is changing ; sources and sinks are not consistent Charact...

What does NOT contribute to making Salt Lake City colder than Seattle during winter? - Answer-Seattle has more cloud cover than Salt lake City, which traps outgoing infrared radiation and keeps temperatures from getting as cold. What is the solar elevation angle over Sao Paulo, Brazil (lat. 24 s)...

How do red and blue light differ? - Answer-The wavelength of red light is longer. (E1) Which gases are primarily responsible for the atmosphere greenhouse effect in Earth's atmosphere? - Answer-Water vapor and carbon dioxide (E1) Much of the carbon dioxide found in earlier atmospheres is curr...

Clouds and precipitation are frequently found on the downwind side of a large lake. This would indicate that the air on the downwind side is a. diverging and sinking b. diverging and rising c. Stable and rising d. converging and rising e. converging and sinking - Answer-e. converging and si...

The only substance near Earth's surface that is found naturally in the current atmosphere as a solid, liquid, and a gas is - Answer-water. The rate at which temperature decreases with increasing altitude is known as the - Answer-lapse rate. Almost all of Earth's weather occurs in the - Answe...

If an air parcel is given a small push upwards and it continues to move upwards on its own accord, the atmosphere is said to be ____. - Answer-unstable Which condition would be described as the most stable, independent of the season or the location on Earth? - Answer-An inversion Absolute inst...

On a weather map, the transition zone between two air masses with sharply contrasting properties is marked by - Answer-a front. What type of weather front would likely be responsible for the following weather forecast? "Increasing high cloudiness and cold this morning. Clouds increasing and lowe...

Air molecules are held near Earth by/through - Answer-Gravity Which weather element ALWAYS decreases as we climb upward in the atmosphere? - Answer-Pressure The rate at which temperature decreases with increasing altitude is known as the - Answer-lapse rate In a volume of air near earths su...

In the atmosphere - Answer- Cold air sinks and warm air rises Weather - Answer- State of the atmosphere with respect to wind, temperature, moisture, pressure, etc. Climate - Answer- Average or generally prevailing conditions Most abundant gases - Answer- Nitrogen (78), Oxygen (21), Argo...