Extreme weather - Mind Map
Extreme weather includes unexpected, unusual, unpredictable, severe or unseasonal weather; weather at the extremes of the historical distribution--the range that has been seen in the past. Often, extreme events are based on a location's recorded weather history and defined as lying in the most unusual ten percent.
Keywords: science, extreme weather
Extreme weather
Use this template to learn about extreme weather. Find information about extreme weather events like hurricanes and tornadoes and think about what you can do in case you encounter one of them. Learn what are the world’s most affected areas and what is the time of the year when the hurricanes occur.
Extreme Weather
Learn more about hurricanes and tornadoes, the areas of the world they affect, how they are formed and when, and what you can do to survive such an extreme storm.
Hurricanes
Hurricanes that have been known throughout history
Hurrican name
Where did it hit?
Type in the name of the area that was affected.
Research on the emergency procedures and safety tips that can keep you safe before, during and after a hurricane.
Safety tips after the hurricane
List several safety tips that will help you cope with the situation after the hurricane has left your area.
List several emergency procedures and safety tips that will keep you safe during a hurricane.
List several emergency procedures and safety tips that will prepare you for a hurricane.
How do hurricanes form?
How do hurricanes form?
Watch the video then type in a short explanation of how the hurricanes are formed.
Hurricane Intensity Rating System
The classification system for hurricanes is called The Saffir-Simpson Hurricane Wind Scale, and it's a 1 to 5 categorization of the hurricane's intensity at the indicated time.
Each category expresses the intensity in miles per hour. Example: category 1 (74-95 mph).
Type in the other 4 categories.
What time of the year do the hurricanes occur?
Season
Type in the two official seasons from the Atlantic and Pacific.
Areas of the world most affected by hurricanes
Which are the areas/countries of the world hit most frequently or severely by hurricanes? Choose from the options below or add your own.
What are hurricanes?
Hurricanes are the most violent, swirling storms on Earth, with winds that can go up to 259 kilometers per hour.
A hurricane's forming elements:
- Eye- the "hole" at the center of the storm where the winds are lighter and the skies are only partly cloudy
- Eye wall- the ring of thunderstorms that are swirling around the eye. This is where the winds are the strongest and rain the heaviest.
- Rain bands -that expand from the eye wall
Tornadoes
Examples
Tornadoes that have been known throughout history
Tornado name
Damage
What were the damages caused by it?
Type in the answer.
Where
Where did it occur?
Type in the name of the area that was affected.
When
When did it take place?
Type in the answer.
What to do?
Research on the emergency procedures and safety tips that can keep you safe before, during and after a hurricane. Type in several of them.
Safety tips after the tornado
List several safety tips that will help you cope with the situation after the tornado has left your area.
During
List several emergency procedures and safety tips that will keep you safe during a tornado.
Before
List several emergency procedures and safety tips that will prepare you for a tornado.
How do tornados form?
Tornadoes are the most violent storms on Earth
Watch the video then type in a short explanation of how the tornadoes are formed.
Formation
Tornado Intensity Rating System
The classification system for tornadoes is called The Fujita Scale (or F scale), and it's an F0 to F6 categorization of the tornado's intensity.
Each category expresses the intensity in miles per hour.
Example: category F0 (40–72 mph; includes damages to trees, chimneys, and billboards).
Type in the other 5 categories.
Category
What time of the year do the tornadoes occur?
Tornadoes can occur almost all over the world, but US's unique geography makes it the ideal place for their development.
Type in the tornado seasons in the United States, taking into account the
Southeast and Northern Plains regions.
Tornado season
Areas of the world most affected by tornadoes
Which are the areas/countries of the world hit most frequently or severely by tornadoes? Choose from the options below or add your own.
What are tornadoes?
Tornadoes are local storms of short duration (this ranges between 5 and 10 minutes) formed of winds that rotate at very high speeds, usually in a counter-clockwise direction.
A tornado's characteristics:
- Time of day: they usually occur in the afternoon (3 - 7 PM)
- Direction: usually from southwest to northeast
- Length of path: this is the distance it travels; the average is 4 miles, but it could also travel around 300 miles.
- Width of path: averages between 300 and 400 yards but tornadoes have cut paths a mile or more in width.
- Speed of travel: though speeds of 68 mph have been reported, the average speed is somewhere between 25 and 40 mph.
- Cloud: dark cumulonimbus (thunderstorm cloud) from which the funnel-shaped pendant extends to the ground.
- Precipitation: rain and hail before the tornado hits and heavy downpour to the side of the tornado's path.
- Sound: roaring, rushing noise.
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