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Weather Maps and Symbols

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					Weather Maps and
    Symbols
    Science 1206
          Lesson Objectives
to understand how meteorological data is
collected and how the data is used to predict
future weather conditions.

to locate weather symbols typically used on
weather maps which indicate the following
weather conditions: high pressure region (indicated by
H); low pressure region (indicated by L), wind direction and
speed and type of cloud cover, air temperature (°C);
visibility (the distance x100m that one can see); weather
condition (may include rain, freezing rain, snow,
thunderstorm, fog, haze, or dew); dew point (temperature at
which moisture will condense on objects); type of low,
middle, and high cloud cover and isobars (lines
representing regions with the same atmospheric pressure).
    Predicting Future Weather
            Conditions
Have you ever noticed how certain people who
work closely with the sea or land (fishing,
logging, and farming) tend to be able to forecast
the weather without the use of instruments.
As technology advanced, people have been
collecting weather data using simple instruments
to quantify measurements of temperature,
atmospheric pressure, relative humidity, wind
direction and speed.
       The Weather Forecast
The study of weather and
forecasting is called
meteorology.
The people who study the
weather and try to predict
future trends are called
meteorologists.

 http://www.on.ec.gc.ca/greatlakeskids/glk-video-e.html
Weather Map
      Weather on the Web
http://weatheroffice.ec.gc.ca/jet_stream/in
dex_e.html
http://www.weathernetwork.com/weather/
maps/floods.htm?temp
Professional Meteorological
      Weather Map
                           Activity
Read "Interpreting and Creating Weather Maps" on Pages 683-685. Using
the map provided, compile a listing of symbols located on the map and
identify the meaning of each. Your list of symbols should include the
following:
high pressure region (indicated by H)
low pressure region (indicated by L)
wind direction and speed and type of cloud cover
air temperature (°C)
visibility (the distance x100m that one can see)
weather condition (may include rain, freezing rain, snow, thunderstorm, fog,
haze, or dew)
dew point (temperature at which moisture will condense on objects)
type of low, middle, and high cloud cover
isobars (lines representing regions with the same atmospheric pressure)
Select one area of the weather map and describe the weather conditions in
that locality. Write a complete report of your findings in your portfolio.
Which symbol on a weather map indicates a
        region of high pressure?
 a. L
 b. S
 c. H
 d. 860

  Answer: C
Cloud cover is indicate by a circle. What
does the following cloud cover symbol
mean?


  a. obscured sky
  b. cloudy sky
  c. partly cloudy sky
  d. scattered clouds

    Answer : B
What type of cloud is indicated by the
following cloud symbol?

 a. cirrus
 b. cirrostratus
 c. cumulus
 d. cirrocumulus

  Answer : A
 What type of weather condition is
indicated by the following symbol?


a. rain
b. fog
c. snow
d. haze

  Answer : C
What type of weather condition is
 represented by the following
            symbol?

a. rain
b. tornado
c. windy
d. thunderstorm
   Answer: D
Which symbol refers to an increase
     in barometric pressure?

 a. L
 b. H
 c. +0.6
 d. 101.5


  Answer: C

				
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posted:11/29/2011
language:English
pages:14