Download Name: Core: _____ Date: ______ Worksheet – Weather Map

Name: ____________________________________
Core: _____
Date: ____________
Worksheet – Weather Map Review
Part 1: Weather Vocabulary Review
ACROSS
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This "fair weather" cloud is puffy and white.
This type of front occurs when a warm air mass slides over a cold air mass.
This type of front occurs when a warm air mass and a cold air mass collide but don't push
passed each other.
The study of the atmosphere, including weather.
The instrument that is used to measure air pressure.
The amount of mass in a given volume of substance
This layer of the atmosphere has the ozone layer that traps heat on earth like a "warm
blanket".
This type of cloud is found at the highest altitudes.
Level of the atmosphere in which weather occurs.
This type of air pressure is associated with clouds, storms, and warm rising air.
The physical condition of the atmosphere at a specific time and place.
In the United States, weather systems come from this direction.
DOWN
1 The amount of water vapor in the air.
2 The scientific term for the cloud that brings thunderstorm.
4 This is the most abundant gas in the atmosphere.
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The force of the air weighing down over a unit of area.
The place where two air masses with different densities meet.
An occluded front is shown on a weather map with this color.
A warm surface ocean current that carries warm water from the equator up the North
Atlantic Ocean.
A narrow zone of very strong winds in the upper troposphere that can move or block
stormy weather.
The temperature at which condensation occurs.
This type of front occurs when a cold air mass wedges under a warm air mass and pushes
it up.
Thin, sheet-like clouds found at low altitudes; often associated with fog and drizzle.
Layered pellets of ice that may fall during thunderstorms
Part 2: Analyze a Weather Map
Meteorologists use special symbols and codes to explain weather data on maps. Study the weather symbols, then use
the map to help you answer the questions below.
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Through which northwestern states has a cold front moved? _________________________________________
Are the skies in Houston clear, cloudy, or partly cloudy? _____________________________________________
What are the conditions in Louisiana? ____________________________________________________________
What will be the highest temperature in southern California today? ____________________________________
Which area of the country will experience the warmest temperatures today? ____________________________
Will it rain in western North Carolina today? _______________________________________________________
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Which city will experience cloudy skies today: Las Vegas, Bismarck, or Charlotte?
Which area of the country will experience ice? _____________________________________________________
What type of front is moving through the eastern portion of the United States? __________________________
You have a flight into Atlanta today. What kind of skies can you expect? ________________________________
What is the maximum temperature forcaste for Billings? Albuquerque? San Francisco?
___________________________________________________________________________________________
12. Which states will experience thunderstorm today? _________________________________________________
Part 2: Create an Isobar Map
1. Using a black pencil, lightly draw lines connecting identical values of pressure. Remember, these lines, called
isobars, do not cross each other. Isobars are usually drawn for every four milibars.
2. Begin connecting the 1024 millibars values in Utah, Wyoming, and Colorado. Start with the highlighted 1024
value in Utah. Draw the line approximately through the center of the number (between 0 and 2 of 1024).
Connect the values without lifting your pencil. Isobars are smooth lines with few, if any, kinks. The result should
be an elongated circle, centered approximately over eastern Utah. The line that was drawn represents the 1024
millibar line and you can expect the pressure to be 1024 millibars everywhere along that line.
3. Repeat the procedure with 1020 isobar value. Then continue with the remaining values until you have all the
data connected with an isobar.
4. Label each isobar with the appropriate value. Traditionally, the last 2 digits are used for labels. For example, the
label on the 1024 mb would be 24.
5. Label the center of the high pressure area with a large H.
6. Label the center of the low pressure area with a large L.
7. Shade in blue the state(s) where you would expect to see precipitation. Remember, that precipitation (rain,
snow, sleet, hail, etc.) is the result of pressure causing the air to move and carry humidity. To figure out whether
it is low pressure or high pressure, think about this: 1) What does cold air do? Sink or rise? When it sinks onto air
that was already there, what kind of pressure does it create? What does it leave behind in the sky? 2) What does
warm air do? Sink or rise? When it rises, what kind of pressure does it leave behind? What does it carry with it?
8. Shade in yellow the state(s) where you would expect to see precipitation. See note above.
9. Shade in red the area on the map where you would expect to have the highest wind speed. Remember, wind
always moves to reach equilibrium (balance). Therefore, high pressure areas will try to spread into low pressure
areas…so, wind always moves from areas of high pressure to low pressure. What do you think would cause the
strongest winds??
10. Draw arrows around the “H”on your map to indicate wind direction. Remember wind always blows from high to
low pressure. So, would the arrows point toward the H or away from the H.
11. Draw arrows around the “L” on your map to indicate wind direction. Remember wind always blows from high to
low pressure. So, would the arrows point toward the L or away from the L.