WX 201 Exam 2 Questions and Answers
Graded A+
Analysis Chart - Correct answer-Depict actual data obtained at a given observation
time
Forecast Chart - Correct answer-Computer model charts predicting future
conditions of the atmosphere; surface charts and upper level charts are created
Constant altitude charts - Correct answer-All locations at the same altitude above
ground level (for surface analysis, pressures are typically adjusted to MSL)
Constant pressure charts - Correct answer-all locations on the chart have the same
pressure; contour lines of equal height of the atmospheric column to that pressure
level; typically used for elevated levels of the atmosphere such as 700 and 500 mb
How are surface analyses created? - Correct answer--NOA/NWS is the primary
source of data in the U.S
-Identify: lows, highs, thoughts, ridges, fronts and station model symbols
Isobaric charts - Correct answer--Acquired through radiosondes, satellite, and
aircraft
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, Upper Air Station Model - Correct answer-Temperature, wind, dew point, height
Standard Pressure Levels - Correct answer-1013mb- 0 ft
850mb- 5,000 ft
700mb- 10,000 ft
500mb- 18,000 ft
300mb- 30,000 ft
250mb- 39,000 ft
Location of jet streams - Correct answer--Bands of strong wind at tropopause level
-Clear air turbulence
- lead to development and movement of cyclones
Vertical Motion - Correct answer--Rising motion = air expands and cools = clouds
and precipitation may form if the air is sufficiently humid
-Sinking motion = air is compressed and warms= clearing skies
Sources of Vertical Motion - Correct answer-1. Convergence / divergence
2. Topography
3. Fronts
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
Graded A+
Analysis Chart - Correct answer-Depict actual data obtained at a given observation
time
Forecast Chart - Correct answer-Computer model charts predicting future
conditions of the atmosphere; surface charts and upper level charts are created
Constant altitude charts - Correct answer-All locations at the same altitude above
ground level (for surface analysis, pressures are typically adjusted to MSL)
Constant pressure charts - Correct answer-all locations on the chart have the same
pressure; contour lines of equal height of the atmospheric column to that pressure
level; typically used for elevated levels of the atmosphere such as 700 and 500 mb
How are surface analyses created? - Correct answer--NOA/NWS is the primary
source of data in the U.S
-Identify: lows, highs, thoughts, ridges, fronts and station model symbols
Isobaric charts - Correct answer--Acquired through radiosondes, satellite, and
aircraft
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, Upper Air Station Model - Correct answer-Temperature, wind, dew point, height
Standard Pressure Levels - Correct answer-1013mb- 0 ft
850mb- 5,000 ft
700mb- 10,000 ft
500mb- 18,000 ft
300mb- 30,000 ft
250mb- 39,000 ft
Location of jet streams - Correct answer--Bands of strong wind at tropopause level
-Clear air turbulence
- lead to development and movement of cyclones
Vertical Motion - Correct answer--Rising motion = air expands and cools = clouds
and precipitation may form if the air is sufficiently humid
-Sinking motion = air is compressed and warms= clearing skies
Sources of Vertical Motion - Correct answer-1. Convergence / divergence
2. Topography
3. Fronts
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
