Download Hurricanes

1. Name one way to stay safe during a
tornado.
2. What is the scale that classifies
tornadoes?
Lesson Essential Question:
What are the causes and effects of storms?
•Go
over bellringer
•Weather Updates
•Storms Prezi
•Hurricane Tracking Activity
Hurricanes - Definition
A low pressure tropical cyclone
that has winds of 119 kilometers
per hour or higher.
Hurricanes - Formation
•Forms over WARM OCEAN WATER as a
LOW PRESSURE system.
•Development: from a tropical disturbance, to
tropical storm, to hurricane
3 Criteria of a Hurricane
1. Low Pressure System
2. Warm Air
3. Warm Water
Hurricane - Damage
•Brings high waves and severe flooding
***Storm Surge = a “dome” of water
that sweeps across the land once a
hurricane hits
Storm Surge
Hurricanes - Damage
Hurricanes - Safety
Hurricane Watch – hurricane conditions are
possible within 36 hours
•Be ready to evacuate
Hurricane warning – hurricane conditions
are expected in 24 hours
•Evacuate immediately.
Hurricanes – Extra Info
Eye – the LOW pressure center of
the hurricane.
EYE = VERY CALM
Winter Storms - Definition
A large amount of precipitation
that falls as snow
Winter Storms - Definition
Winter Storms - Formation
•Forms because most precipitation begins
in the clouds as snow. If the air is colder
than 0°C, the precipitation falls as snow.
Winter Storms - Damage
•High winds can blow
falling snow into large
drifts and piles
•Heavy snow can block
roads and trap people in
their homes
•Extreme cold can cause
damage to crops and can
cause water pipes to
freeze and burst
Winter Storms - Safety
Outdoors
•Find shelter from the wind
•Cover exposed parts of your body and try to
stay dry
In the Car
•Keep the engine running to stay warm ONLY
IF the exhaust pipe is clear of snow
Winter Storms – Extra Info
Lake-Effect Snow - the process in which cold dry air
moves across a body picking up water vapor and heat.
As soon as the air mass reaches the other side of the
water, the air rises and cools again. The water vapor
condenses and VERY LARGE amounts of snow fall,
usually very close to the lake.
Monday, May 22, 2017
Finish the Hurricane
Tracking Activity.
1. What is the center of the hurricane
called?
2. What two criteria are needed to create a
hurricane?
3. _____________________ snow is caused
when cool dry air blows over a body of
water, causing it to pick up moisture and
dump snow on the other side of a lake.