Lab 6-5

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Lab 6-5

• Weather Patterns

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Map A Isotherms

• Connect points of equal value
• Use an interval of 10F
• Stop your lines when they go off the coast.

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If more dots are needed, add some
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Map B Isobars

• Write the following in an empty space on the map
• Millibars Station Model Code
• 1024.0
• 1020.0
• 1016.0
• 1012.0
• 1008.0
• 1004.0
• 1000.0

Fill in the code here
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Map B Isobars- Continued

• Draw isobars
• Use an interval of 4mb.
• Label the highest pressure with an
• Label the lowest pressure with an

H
L
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Map C Wind PatternsDraw arrows
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Map C Wind PatternsNow Draw Large Arrows
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Map DPrecipitation Patterns

• Draw a line encompassing the entire area where
  rain is falling.
• Lightly shade it in with pencil.
• Label the Air Masses.

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Handy Dandy Earth Science Reference Tables, pg 13

• An Air Mass is a large region of air that has the
  same temperature and humidity.
• It gets its properties from hanging out in the
  same region for a while.

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For example

• If the source region is the gulf of Mexico and
  the air comes to Long Island
• It will feel warm and moist to us maritime
  tropical (mT).
• If it comes from central Canada
• It will feel cold and dry to us continental
  polar (cP)

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What type of air mass?
mP
Cool moist mP
Cool Dry cP
mP
cT
mT
mT
Warm Moist mT
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Make the Synoptic Map

• Use Instruction 1 as a check list of things to
  put on the map.
• Add the fronts.

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Now that we know WHERE the fronts are, how do we
know what KIND they are?

• If colder air is coming in, it is a cold front.
• If warmer air is coming in, it is a warm front.

How to Find Label Fronts
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The End