1. Predicting the Weather
Fronts

2. Fronts
What do you think a Front is? How do you think
Fronts form and how do they affect the
weather?
TURN AND TALK to discuss, then share answers
as a class.

3. Fronts
Weather maps not only show air masses but
they show fronts as well.
A front is a place where two different air
masses meet.

4. Fronts -
draw the pictures in your notebook
Triangles show a cold front
Half circles show a warm front
The triangles and half circles point in the
direction in which the front is moving.

5. Fronts
At a cold front, a cold air mass bumps against
a warm air mass. Strong storms happen at
cold fronts.
Thunderstorms are likely in warm weather. In
winter, snowstorms are likely.
When a cold front passes over an area, the
temperature drops.

6. Fronts
At a warm front, a warm air mass meets a
colder air mass and slowly rises over it.
Stratus clouds form at warm fronts.
They often bring rain.
After a warm front passes over an area, the
temperature rises.

7. Fronts
A stationary front forms when two air masses
meet and stop moving.
Stationary fronts bring clouds and
precipitation, sometimes lasting for several
days.

8. Fronts
Cold Front
Warm Front