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Презентация на тему Winds and storms

Содержание

Wind is the movement of air parallel to the Earth's surface. Winds are named according to the direction from which they are blowing. The direction of a wind is significant in weather forecasting.
WINDSAND STORMS Wind is the movement of air parallel to the Earth's surface. Winds In the Northern Hemisphere, for example, northwest winds usually indicate colder, drier STORMSA storm is a disturbed state of the atmosphere. It is marked Thunderstorms When hot, moist air is carried to great heights by the Windstorms Meteorologists and mariners consider winds to be at storm strength when Sandstorms Sandstorms and dust storms are dry windstorms. Sandstorms are associated with Cyclones, hurricanes, and tornadoes The word cyclone or hurricane is frequently used Cyclones often cover thousands of square miles. The swift winds often bring heavy rain. A cyclone is a storm or system of winds that blows toward A tornado is a violent, inland cyclonic storm. The tornado has a Tornadoes can tear the roofs from houses. Ice storms bring strong winds with ice, cold water and snow.
Слайды презентации

Слайд 2 Wind is the movement of air parallel to

Wind is the movement of air parallel to the Earth's surface.

the Earth's surface. Winds are named according to the

direction from which they are blowing. The direction of a wind is significant in weather forecasting.

Слайд 3 In the Northern Hemisphere, for example, northwest winds

In the Northern Hemisphere, for example, northwest winds usually indicate colder,

usually indicate colder, drier weather. Easterly winds mean cloudiness

and precipitation, and southerly winds mean warm, humid weather.

Слайд 4 STORMS
A storm is a disturbed state of the

STORMSA storm is a disturbed state of the atmosphere. It is

atmosphere. It is marked by strong winds, rain, sleet,

hail, and lightning. Thunderstorms, windstorms, and cyclones are different types of storms.

Слайд 5 Thunderstorms
When hot, moist air is carried to great

Thunderstorms When hot, moist air is carried to great heights by

heights by the strong updraft in a rain-bearing cloud,

the water vapor condenses. Then heavy rain, thunder, and lightning occur along with strong wind, and sometimes hail. This is a thunderstorm.

Слайд 6 Windstorms
Meteorologists and mariners consider winds to be at

Windstorms Meteorologists and mariners consider winds to be at storm strength

storm strength when they reach a speed of 73

miles (117 kilometers) per hour. Windstorms, or gales, have little or no precipitation.

Слайд 7 Sandstorms Sandstorms and dust storms are dry windstorms. Sandstorms

Sandstorms Sandstorms and dust storms are dry windstorms. Sandstorms are associated

are associated with desert areas. They occur when high

winds lift particles of sand into the air and drive them with great force.

Слайд 8

Слайд 9 Cyclones, hurricanes, and tornadoes The word cyclone or hurricane

Cyclones, hurricanes, and tornadoes The word cyclone or hurricane is frequently

is frequently used for any wind with a speed

more than 75 miles (121 kilometers) per hour.

Слайд 10 Cyclones often cover thousands of square miles. The

Cyclones often cover thousands of square miles. The swift winds often bring heavy rain.

swift winds often bring heavy rain.

Слайд 11 A cyclone is a storm or system of

A cyclone is a storm or system of winds that blows

winds that blows toward an area of low air

pressure, over which they rotate in an inward spiral.

Слайд 12 A tornado is a violent, inland cyclonic storm.

A tornado is a violent, inland cyclonic storm. The tornado has

The tornado has a funnel-shaped trunk that reaches down

from a dark thundercloud and whirls at speeds up to 300 miles (482 kilometers) per hour.

Слайд 13 Tornadoes can tear the roofs from houses.

Tornadoes can tear the roofs from houses.
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