Question 1

List the different weather elements provided on a station model.Then describe how sea level pressure is given,the notation system for denoting cloud cover,and a general description of how wind speed and direction are indicated.

Accepted Answer

Well over a dozen weather elements,inclu...

Question 2

A persistence forecast

Accepted Answer

A)  requires knowledge of local weather conditions at the time the forecast is made.
B)  requires knowledge of both local and regional weather conditions the day before the forecast is made.
C)  requires knowledge of local weather conditions in previous years.
D)  requires knowledge of regional weather conditions in previous years.

Question 3

List the variables that would need to be taken into account if a person wanted to forecast the next day's temperatures.

Accepted Answer

Pressure,temperature,dew point...

Question 4

The lifted index

Accepted Answer

A)  uses the same data as does the K-index.
B)  relies on changes in temperature with pressure.
C)  was developed in the early 1980s.
D)  is better for predicting severe weather than is the K-index.

Question 5

The systematic under- or over-prediction of weather phenomena is called ________.

Accepted Answer

The answer of The systematic under- or over-prediction of weather...

Question 6

A ________ forecast relies entirely on current conditions with no reference to climatology.

Accepted Answer

A)  climatological
B)  dynamic
C)  persistence
D)  numerical

Question 7

Weather forecasting is imperfect because

Accepted Answer

A)  observations are not taken often enough.
B)  observations are not close enough together.
C)  the atmosphere is a continuum, taking observations breaks the continuum.
D)  All of these answers.

Question 8

In the Northern Hemisphere,winds move in this direction around a low pressure area: ________.

Accepted Answer

The answer of In the Northern Hemisphere,winds move in this...

Question 9

What is typically shown on a surface weather map?

Accepted Answer

Surface station mode...

Question 10

Computer-based weather forecasts

Accepted Answer

A)  are completely automated and require no intervention by human forecasters.
B)  are mostly unreliable and are little-used by human forecasters.
C)  provide important guidance to human forecasters.
D)  are only used in specific, hurricane-prone areas.

Question 11

List the typical data gathered at surface weather observation stations in the United States.

Accepted Answer

These sites record temperature,humidity,...

Question 12

Making a local weather forecast requires

Accepted Answer

A)  knowledge of current local weather conditions.
B)  knowledge of current regional weather conditions.
C)  knowledge of current local and regional weather conditions.
D)  a barometer.

Question 13

This type of forecast would predict average conditions for a three-month period: ________.

Accepted Answer

The answer of This type of forecast would predict average...

Question 14

The meteorologist at your local TV station says "There is a 60% chance of rain tomorrow." This is an example of

Accepted Answer

A)  numerical weather forecasting.
B)  forecast bias.
C)  a qualitative forecast.
D)  a probability forecast.

Question 15

Weather forecasting

Accepted Answer

A)  involves a set of interlocking problems, each difficult to solve in isolation let alone in combination.
B)  involves a set of interlocking problems, each easy to solve in isolation but difficult in combination.
C)  should be an exact process within five years.
D)  should be an exact process within 20 years.

Question 16

This map is commonly used to represent conditions in the middle atmosphere.

Accepted Answer

A)  200 mb
B)  500 mb
C)  700 mb
D)  850 mb

Question 17

Twice a day the National Centers for Environmental Prediction issues maps at all of the following pressure levels,except

Accepted Answer

A)  100 mb.
B)  300 mb.
C)  700 mb.
D)  850 mb.

Question 18

The Next Generation Radar (NEXRAD) is

Accepted Answer

A)  an upgraded conventional radar.
B)  the radar that will be brought online in the year 2010.
C)  a full Doppler radar with tremendous observational capabilities.
D)  a surplus air defense radar that is being adapted for National Weather Service use.

Question 19

Which of the following would offer the best chance of predicting features of lake-enhanced snowfall at a localized area of Lake Ontario coastline in greater detail?

Accepted Answer

A)  a large-domain numerical forecast model
B)  a small-domain numerical forecast model
C)  a large-domain numerical forecast model with spectral representation
D)  a large-domain numerical forecast model with spectral representation and cloud parameterizations

Question 20

The reason that precipitation forecasts are the least accurate of all meteorological predictions is

Accepted Answer

A)  moisture cannot be accurately measured.
B)  moisture is discontinuous.
C)  because we do not have the capability to accurately track moisture.
D)  because moisture can indiscriminately change phases.

Exam 13: Weather Forecasting and Analysis

A persistence forecast

Correct AnswerverifiedShow Answer

The meteorologist at your local TV station says "There is a 60% chance of rain tomorrow." This is an example of

Correct AnswerverifiedShow Answer

In the Northern Hemisphere,winds move in this direction around a low pressure area: ________.

Correct AnswerverifiedShow Answer

The lifted index

Correct AnswerverifiedShow Answer

List the different weather elements provided on a station model.Then describe how sea level pressure is given,the notation system for denoting cloud cover,and a general description of how wind speed and direction are indicated.

Correct AnswerverifiedWell over a dozen weather elements,inclu...View AnswerShow Answer

Twice a day the National Centers for Environmental Prediction issues maps at all of the following pressure levels,except

Correct AnswerverifiedShow Answer

A ________ forecast relies entirely on current conditions with no reference to climatology.

Correct AnswerverifiedShow Answer

This type of forecast would predict average conditions for a three-month period: ________.

Correct AnswerverifiedShow Answer

Weather forecasting is imperfect because

Correct AnswerverifiedShow Answer

Which of the following would offer the best chance of predicting features of lake-enhanced snowfall at a localized area of Lake Ontario coastline in greater detail?

Correct AnswerverifiedShow Answer

The reason that precipitation forecasts are the least accurate of all meteorological predictions is

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Weather forecasting

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Making a local weather forecast requires

Correct AnswerverifiedShow Answer

What is typically shown on a surface weather map?

Correct AnswerverifiedSurface station mode...View AnswerShow Answer

List the variables that would need to be taken into account if a person wanted to forecast the next day's temperatures.

Correct AnswerverifiedPressure,temperature,dew point...View AnswerShow Answer

Computer-based weather forecasts

Correct AnswerverifiedShow Answer

The Next Generation Radar (NEXRAD) is

Correct AnswerverifiedShow Answer

List the typical data gathered at surface weather observation stations in the United States.

Correct AnswerverifiedThese sites record temperature,humidity,...View AnswerShow Answer

The systematic under- or over-prediction of weather phenomena is called ________.

Correct AnswerverifiedShow Answer

This map is commonly used to represent conditions in the middle atmosphere.

Correct AnswerverifiedShow Answer

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Well over a dozen weather elements,inclu...
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Surface station mode...
View Answer

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Pressure,temperature,dew point...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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These sites record temperature,humidity,...
View Answer

Correct Answer
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Correct Answer
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