Transcript Clouds

Clouds
Predict the Weather by
learning Cloud Types
High Clouds
Cirrus Clouds appear
about 24-36 hrs before a
change in the weather
More Cirrus Clouds
Middle Clouds

Altocumulus clouds
are about the size of
your thumb when
held at arms length.
Middle Clouds
Altostratus are a
thinner form of
stratus clouds found
higher in the
atmosphere

Low Clouds
Nimbostratus are rainbearing clouds that
cover the sky in one
large layer.
Low Clouds
Cumulus clouds are puffy,
and form individually,
or as one large
thunderstorm.
Clouds that grow…
Cumulonimbus clouds
are thunderstorm
clouds!
Another growing cloud…
This cumulonimbus was
photographed from an
airplane.
A Severe Storm Cloud

Mammatus clouds are
often seen before a
tornado or funnel
cloud appears
Severe Storm Cloud

A Wall Cloud signals an approaching front
How Do Clouds Form?
1.
2.
3.
4.
5.
Warm, humid air near the
ground is heated.
The Warm Air rises.
The air cools as it rises.
The temp. of the air reaches
the dewpoint temp.
The water changes from a
gas to liquid water.
DEWPOINT!!!
Dewpoint temperature
always has to be the
same or less than the
air temperature.
What do we see when
the air temp and
dewpoint are the
same at ground level?
FOG !!!
Try to identify the following
cloud photos..
Cumulus
Cumulonimbus
Cirrus
Altostratus
Altocumulus
Cirrus
Towering
Cumulus or
Cumulonimbus
Cumulus
Towering Cumulus
Lenticular