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weather

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dictionary Typhoon Lightning Rainstorm Tsunamis Tornadoes Blizzards Hurricane Spring Summer Windy Cloudy Sunny Waterspout Snowy Hot Cool Cold Warm Rainy Dry Autumn ... – PowerPoint PPT presentation

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Title: weather


1
weather
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Hon
Wa
4C
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2
dictionary
  • Hot
  • Cool
  • Cold
  • Warm
  • Rainy
  • Dry
  • Autumn
  • Winner
  • Wet
  • Fog
  • Cumulonimbus
  • Typhoon
  • Lightning
  • Rainstorm
  • Tsunamis
  • Tornadoes
  • Blizzards
  • Hurricane
  • Spring
  • Summer
  • Windy
  • Cloudy
  • Sunny
  • Waterspout
  • Snowy

3
Typhoon Tropical cyclones normally occur during
the months of May to November, and are
particularly prevalent during September. Tropical
cyclone advisory bulletins and/or warnings are
issued by the Hong Kong observatory whenever a
tropical cyclone centres within 800 km of Hong
Kong poses a threat to the territory. These
advisory bulletins include the tropical cyclone
warning signal issued and its significance, the
latest position and expected movement of the
centre of the tropical cyclone, information on
the wind strength, rainfall and sea level in the
territory and advice on precautionary measures.
???
4
Lighting
  • Lightning is the working project name for an
    extension to tightly integrate calendar
    functionality (scheduling, tasks, etc.) into
    Thunderbird.

???
5
Rainstorm
  • Rainstorm Warning Signals
  • When the Amber Rainstorm Warning Signal is
    issued, it gives alert about potential heavy rain
    that may develop into Red or Black Rainstorm
    Warning Signal situations. There will be flooding
    in some low-lying and poorly drained areas.
  • The Red signal means that heavy rain could cause
    serious road flooding and traffic congestion, and
    may affect schools and public examinations.
  • The Black signal means that there are major
    disruptions and inclement weather. The public
    will be given clear advice on the appropriate
    actions to take.

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6
Tsunami
  • Tsunamis, also called seismic sea waves or,
    incorrectly, tidal waves, generally are caused by
    earthquakes, less commonly by submarine
    landslides, infrequently by submarine volcanic
    eruptions and very rarely by a large meteorite
    impact in the ocean. Submarine volcanic eruptions
    have the potential to produce truly awesome
    tsunami waves.

???
7
Tornado
Tornadoes are one of nature's most violent
storms. In an average year, about 1,000 tornadoes
are reported across the United States, resulting
in 80 deaths and over 1,500 injuries. A tornado
is a violently rotating column of air extending
from a thunderstorm to the ground. The most
violent tornadoes are capable of tremendous
destruction with wind speeds of 250 mph or more.
Damage paths can be in excess of one mile wide
and 50 miles long.
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8
Blizzard
  • Blizzards are characterized by low temperatures
    (usually below 20degF) and accompanied by winds
    that are at least 35 mph or greater, there must
    also be sufficient falling and/or blowing snow in
    the air that will frequently reduce visibility to
    1/4 mile or less for a duration of at least 3
    hours.

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9
hurricane
A hurricane is a severe tropical storm that forms
in the North Atlantic Ocean, the Northeast
Pacific Ocean east of the dateline, or the South
Pacific Ocean east of 160E. Hurricanes need warm
tropical oceans, moisture and light winds above
them. If the right conditions last long enough, a
hurricane can produce violent winds, incredible
waves, torrential rains and floods.
When hurricanes move onto land, the heavy rain,
strong winds and heavy waves can damage
buildings, trees and cars. The heavy waves are
called a storm surge. Storm surge is very
dangerous and a major reason why you MUST stay
away from the ocean during a hurricane.
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10
Hot
The weather is hot.
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11
Cool
The weather is cool.
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12
Cold
In winter,it is cold.
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13
Warm
???
Today is warm.
14
Dry
The weather is dry.
???
15
Rainy
The weather is rainy.
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16
Spring
I like spring.
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17
Summer
I like summer.
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18
In autumn,the weather is cool.
Autumn
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19
In winner,it is cold.
Winner
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20
Windy
It is windy.
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21
Wet
The weather is wet.
???
22
Sunny
The weather is sunny.
???
23
Cloudy
It is cloudy.
???
24
Damp
It's damp and cold. I think it's going to rain.
???
25
Fog
The ships cast anchor because of the heavy fog.
???
26
Snowy
He came to see me one snowy night
???
27
Cumulonimbus
The weather is cumulonimbus
???
28
Waterspout
A waterspout is a fast rotating column of air
(made visible by water droplets in the cloud)
extending from the base of a convective cloud to
the water surface. It is equivalent to a tornado,
which occursover land. A rotating column of air
which does not touch the surface (water or land
surface) is called a funnel cloud.
???
29
Rainbow
I love rainbow
???
30
The end
Bye Bye
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