Where does cold,
dry air affecting
the northern
United States
come from?
continental air
mass
What happens
when rapidly
moving cold air
masses overtake a
slow-moving warm
air mass?
a cold front
What happens
when a warm air
mass and a cold air
a stationary front
mass meet and
neither can move
the other?
What are the two
major differences
between cyclones
and anticyclones?
Weather
associated with an
anticyclone is
_________ and
________.
What is a funnel
shaped cloud that
touches the
Earth’s surface?
a tornado
Where are the
a storm shelter or What is the most
best places to seek
the basement of a dangerous aspect
shelter during a
well-built building of a snow storm?
tornado?
high winds
What has
Scientists who
technological
improved weather
study weather and
improvements and
forecasting in
predict it are
computers
recent years?
called__________.
meteorologists
dry and clear
air pressure and
direction of
rotating winds
What are isobars?
The weather
lines on a weather caused by a
map that show continental air
areas with the
mass that formed
same air pressure over northern
Mexico is _______.
Hot and Dry
What do lines with
half circles on a
weather map
indicate?
What type of front
forms when a
warm air mass
overtakes a cold
air mass?
warm front
In what type of
clouds do
thunderstorms
form?
What has
improved the
collection of
weather data in
the last 40 years?
The eye of a
hurricane is said to
be ______.
warm fronts
cumulonimbus
clouds
“Tornado Alley”
includes what
states?
Under what
weather
weather balloons
conditions do
and satellites
hurricanes usually
form?
calm
What technology
enables a
meteorologist to
follow the path of
a thunderstorm?
Texas, Oklahoma,
Kansas, Nebraska,
and Iowa
They begin as a
low pressure area
or tropical
disturbance over
warm ocean
water.
radar
Air masses in the
United States are
commonly moved
by jet streams and
the ________.
Safe places to be
during a
thunderstorm are
_____ & _______.
A dome of water
that sweeps across
the coast where a
hurricane lands is
called a ______.
prevailing
westerlies
The prevailing
westerlies
generally push air
masses from
_____ to ______.
west to east
indoors or
Describe an
People would
crouching in a low
evacuation during temporarily leave
area such as a
a hurricane watch. the area.
ditch
storm surge
This weather front
may bring days of
rain because
neither air mass
can move the
other.
stationary front
During a
thunderstorm a
person should not
touch ______
objects.
metal
What is a storm?
This weather front
occurs when a
warm air mass is
caught between
two cooler air
masses.
Large amounts of
humid air that
cools below 0
degrees Celsius
can produce a
_______storm.
a violent
disturbance in the
atmosphere
occluded front
snow
What storms form
within large
cumulonimbus
clouds and
produce rain and
lightning?
Sudden, violent
storms that occur
shortly after a
storm are called
__________.
thunderstorms
During a ______ ,
try to find shelter
from the wind and
cover exposed
parts of the body.
snowstorm
flash floods
A long-lasting
storm that begins
over the warm
surface of the
ocean and has
winds of 119km/hr
is a _________.
hurricane
stationary front
warm front
occluded front
cold front
station model