6. Air Mass (definition) - Greenwich Public Schools

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Transcript 6. Air Mass (definition) - Greenwich Public Schools

23 Air Masses and Fronts
Full Name: ____________________________
Period: _____ October 15, 2007 Page 23
Directions: Read Text pages 76 to the top of 79. Then fill in the graphic organizer
and and blanks below.
Air Mass (definition):
A huge____________________________
_______________________________
Classified by 2
characteristics
______________
______________
and called
(if warm)
(if cold)
and called
(if wet & humid) (if dry)
______________
______________
______________
______________
Note what kind of air mass would enter the U.S. from each direction.
Each is Maritime or Continental. Also, each is Polar or Tropical.
1._______________
2. _______________
1.
2.
3.
3. _______________
4. _______________
5. _______________
6. _______________
4.
5.
6.
Fronts
Directions: Read Text pages 79 to the middle of 81. Then fill in the graphic organizer
and and blanks below.
Fronts (definition):
The area where______________________
_______________________________
4 types
1. _________ Front
Where rapidly moving
cold air __________
________________
________________
Key Points:
• Heavy _______ or
snow is possible.
• Violent _________
are possible.
• Moves ____________
creating ___________
changes in weather
2. _________ Front
A moving warm air
mass ____________
________________
________________
4. Occluded Front
Warm air is caught
between two ______
________________
3. _________ Front
Warm and cold air
masses meet, but
________________
________________
Key Points:
Key Points:
• Light _______ or
drizzle associated with
________ fronts.
• Violent ____________
are not likely.
• Moves ____________
rainy/wet weather
could last
______________.
• Clouds, rain and fog can
develop along the
stalled ___________
boundry.
• May bring many ______
of rain or snow.
• __________ skies and
cooler temperatures
• _________ and humid
follow.
weather follows.
Use pages 79 & 80 to label the warm and cold fronts pictured below:
_____________ Front
_____________ Front