Weather Phenomena Volcabulary

Weather Phenomena
SOL 4.6
SOL 4.6
Follows along with
Interactive Notebook
notes
Weather Includes:
Temperature
Wind
Precipitation
Weather Instruments (Tools)


Temperature
Temperature
- the measure of the amount of
- the measure of the amount of
heat energy
heat energy
in the atmosphere
in the atmosphere


Measured using a
Measured using a




THERMOMETER
THERMOMETER

Additional Weather Instruments


Wind Speed is measured using an
Wind Speed is measured using an
ANEMOMETER
ANEMOMETER
Wind Direction is
Wind Direction is
measured using a
measured using a
WEATHER VAIN
WEATHER VAIN
.
.
Additional Weather Instruments
A
A
RAIN GAUGE
RAIN GAUGE
is
is
used to measure
used to measure
the amount of
the amount of
precipitation
precipitation
.
.

Precipitation Includes:
Rain
Rain


Snow
Snow
Formed by ice
crystals*
More types of Precipitation:


Sleet
Sleet
Hail
Hail
Formed by ice
crystals*
Mixture of snow and
rain
Air Masses and Fronts
Air Masses
Air Masses
: formed when air in the
: formed when air in the
atmosphere is heated at the equator and
atmosphere is heated at the equator and
cooled at the poles.
cooled at the poles.
Fronts

Fronts
: formed when two air masses of
: formed when two air masses of
different temperatures and humidity* bump
different temperatures and humidity* bump
into each other.
into each other.
*Humidity
*Humidity
is the amount of water vapor
is the amount of water vapor
in the air.
in the air.
Types of Fronts
Cold front
Cold front
Warm front
Warm front
Cold air mass
pushes into a
warm air mass.
Warm air mass
pushes into a cold
air mass.
Additional Weather Tools


Air pressure
Air pressure
is the result of the mass/weight

is the result of the mass/weight
of the air and temperature pushing on its
of the air and temperature pushing on its
surroundings. (atmospheric pressure)
surroundings. (atmospheric pressure)


Measured using
Measured using


a
a
BAROMETER
BAROMETER
Do weather forecasters use air
pressure to predict the weather?
High pressure
High pressure
areas are formed when
areas are formed when
air is
air is
cooled.
cooled.
Low pressure
Low pressure
is formed when
is formed when
air is warmed

air is warmed
.
.
Weather associated with low pressure areas
Weather associated with low pressure areas
are: clouds, rain, and wind.
are: clouds, rain, and wind.
Storms
Thunderstorms
Tornadoes
Hurricanes
Thunderstorms
Strong winds, heavy rain,
thunder, and lightning.
Most
common in
Virginia, but
when?
How are they
formed?
Hurricanes
Form over
warm water
Largest Storm on Earth!
How do they
begin?
What are some of
the characteristics
of a hurricane?
Tornados

Column of warm
air begins to spin
upward forming a
funnel cloud.
What types of wind
speed and what can
they do?
CLOUDS
Clouds are formed when warm air
Clouds are formed when warm air
carrying
carrying
water vapor rises
water vapor rises
from the
from the
Earth and the water vapor
Earth and the water vapor
cools down
cools down
and
and
connect
connect
to each other.
to each other.
Are all clouds the same?
Are all clouds the same?
Cumulus

Fluffy, white
Fluffy, white
clouds with
clouds with
flat bottoms.
flat bottoms.
Cumulus
Cumulus
clouds usually
clouds usually
indicate fair
indicate fair
weather.
weather.
(Middle)
(Middle)
Resemble?
Cirrus


Feathery, wispy,
Feathery, wispy,
clouds; associated
clouds; associated
with fair weather.
with fair weather.
They often indicate
They often indicate
that rain or snow

that rain or snow
will
will
fall within
fall within
hours
hours
.
.
(High)
(High)
Made from?
Stratus


Flat, smooth,
Flat, smooth,
gray clouds that
gray clouds that
blanket/cover
blanket/cover
the whole sky.
the whole sky.
(low)
(low)
What type of weather?
•
Foul weather
Foul weather
storm clouds that

storm clouds that
bring heavy
bring heavy
rains and
rains and
thunderstorms.
thunderstorms.
Cumulo-nimbus
How are they formed?
Spot the cloud!
Low and flat …
Low and flat …
Stratus
Spot the cloud!
Middle level,
Middle level,
fluffy …
fluffy …
Cumulus
Spot the cloud!
High level,
High level,
wispy …
wispy …
Cirrus
Spot the cloud!
Rain bearing,
Rain bearing,
storm clouds …
storm clouds …

Cumulo-
Nimbus
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