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Presentation on the topic: "Hurricanes, storms, tornadoes"
Compiled by OBZh teacher Baranova N.V.
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Introduction
The territory of any region is subject to the complex impact of dozens of hazardous natural phenomena. The most characteristic natural phenomena in terms of frequency depending on the time of year and leading to the occurrence of emergencies are hurricanes, storms and tornadoes. Let's consider these phenomena. The photo shows a view of the storm from space.
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Hurricane
A hurricane is a large atmospheric vortex with wind speeds up to 120 km/h, and in the squat layer up to 200 km/h.
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Storm
A storm is a type of hurricane and storm. Hurricanes and storms differ in wind speed, which reaches 120 km/h or more during a hurricane, and 60-100 km/h during a storm. Damage from a hurricane is greater than from a storm.
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A tornado is an atmospheric vortex that arises in a thundercloud and spreads down to the earth itself in the form of a dark cloudy sleeve or trunk with a diameter of tens and hundreds of meters. There is not long, moving with the cloud.
Tornado
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Danger in these phenomena
Destruction of road and bridge surfaces Destruction of structures and buildings high speed items In the photo the consequences of the hurricane
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How to act before a hurricane, storm, tornado.
After receiving a storm warning signal, proceed to: reinforce the roof, chimneys and ventilation pipes; sealing windows in attic spaces (shutters, boards or plywood shields); the release of balconies and the territory of the yard from fire hazardous objects; to collect stocks of food and water for 2-3 days in case of evacuation to a safe area, as well as autonomous sources of lighting (lanterns, kerosene lamps, candles); move from light buildings to stronger buildings or defensive structures civil defense.
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In the building, move away from the windows and take a safe place against the walls of the interior rooms. Put out the fire in the stoves, turn off the electricity, close the taps on the gas networks. At night, use lanterns, lamps, candles. Turn on the radio to receive information from the civil defense and emergency department and the emergency commission. If possible, stay in a deep shelter, in shelters, cellars, etc. On the streets of a settlement, stay as far away from light buildings, buildings, bridges, overpasses transmission lines. To protect against flying debris and glass fragments, use plywood sheets, cardboard and plastic boxes, boards and other improvised means
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How to act during a hurricane, storm, tornado.
When you receive a signal that a tornado is approaching, you must immediately go down to the shelter, the basement of the house or the cellar. Do not stay in the vehicle, get out and take cover as above.
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After a hurricane, storm, tornado:
Be careful around broken wires. Watch out for fallen trees, swinging shutters, signs, banners, gas leaks in the house, power outages (use electric lights until checking). Electrical appliances may only be used after they have been dried and checked. If the storm is accompanied by a thunderstorm, avoid electric shocks.
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Consequences
The consequences of hurricanes, storms and tornadoes are floods, destruction of buildings, violation of the living conditions of the population.
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Consequences
Powerful hurricanes with rain, storms and tornadoes often lead to human casualties. A large number of public, economic and industrial facilities and residential buildings are damaged. The damage can reach billion rubles.
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Summer 2002 Crimean coast.
Windows and doors were shattered in apartments, roofs were torn off hundreds of houses. The wind knocked down trees, bent traffic lights and street lighting poles, as if with toys it was cracking down on newsstands and food stalls. The electricity and heat supply failed. People were left without light, water and heat. Television and radio broadcasting was silenced. could not be given to the public necessary information. Mudflows that descended from the mountains washed away car campings into the sea along with cars, tents and people.
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Outcome
The most common natural disasters in Europe are storms, hurricanes and, as a result, floods. In terms of economic losses and the volume of subsequent insurance payments, hurricanes and floods are the most financially significant. Hurricanes Lota and Martin in December 1999 caused damage estimated at 5 billion euros, damaging crops, forests and the infrastructure of settlements.
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Homework
Prepare a summary of the learned lesson using the following scheme.
Natural phenomena Actions in the event of a threat Actions in the event of an emergency Actions (hazards) after an emergency
1.
2.
3.
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Slides captions:
Presentation on the topic: “Hurricanes, storms, tornadoes” Compiled by the life safety teacher Baranova N.V.
Introduction The territory of any region is subject to the complex impact of dozens of hazardous natural phenomena. The most characteristic natural phenomena in terms of frequency depending on the time of year and leading to the occurrence of emergencies are hurricanes, storms and tornadoes. Let's consider these phenomena. The photo shows a view of the storm from space.
Hurricane A hurricane is a large atmospheric vortex with wind speeds up to 120 km/h, and in the squat layer up to 200 km/h.
Storm A storm is a type of hurricane and storm. Hurricanes and storms differ in wind speed, which reaches 120 km/h or more during a hurricane, and 60–100 km/h during a storm. Damage from a hurricane is greater than from a storm.
A tornado is an atmospheric vortex that arises in a thundercloud and spreads down to the earth itself in the form of a dark cloudy sleeve or trunk with a diameter of tens and hundreds of meters. There is not long, moving with the cloud. Tornado
Danger in these phenomena Destruction of road and bridge surfaces Destruction of structures and buildings Objects flying at high speed In the photo, the consequences of a hurricane
How to act before a hurricane, storm, tornado. After receiving a storm warning signal, proceed to: reinforce the roof, chimneys and ventilation pipes; sealing windows in attic spaces (shutters, boards or plywood shields); the release of balconies and the territory of the yard from fire hazardous objects; to collect stocks of food and water for 2-3 days in case of evacuation to a safe area, as well as autonomous sources of lighting (lanterns, kerosene lamps, candles); move from light buildings to more durable buildings or to civil defense defenses.
How to act during a hurricane, storm, tornado. In the building, move away from the windows and take a safe place against the walls of the interior rooms. Put out the fire in the stoves, turn off the electricity, close the taps on the gas networks. At night, use lanterns, lamps, candles. Turn on the radio to receive information from the civil defense and emergency department and the emergency commission If possible, stay in a deep shelter, in shelters, cellars, etc. transmission lines. To protect against flying debris and glass fragments, use plywood sheets, cardboard and plastic boxes, boards and other improvised means
How to act during a hurricane, storm, tornado. When you receive a signal that a tornado is approaching, you must immediately go down to the shelter, the basement of the house or the cellar. Do not stay in the vehicle, get out and take cover as above.
After a hurricane, storm, tornado: Be careful around broken wires. Watch out for fallen trees, swinging shutters, signs, banners, gas leaks in the house, power outages (use electric lights until checking). Electrical appliances may only be used after they have been dried and checked. If the storm is accompanied by a thunderstorm, avoid electric shocks.
Consequences The consequences of hurricanes, storms and tornadoes are floods, destruction of buildings, violation of the living conditions of the population.
Consequences Powerful hurricanes with rains, storms and tornadoes often lead to human casualties. A large number of public, economic and industrial facilities and residential buildings are damaged. The damage can reach billion rubles.
Summer 2002 Crimean coast. Windows and doors were shattered in apartments, roofs were torn off hundreds of houses. The wind knocked down trees, bent traffic lights and street lighting poles, as if with toys it was cracking down on newsstands and food stalls. The electricity and heat supply failed. People were left without light, water and heat. Television and radio broadcasting was silenced. It was impossible to convey the necessary information to the population. Mudflows that descended from the mountains washed away car campings into the sea along with cars, tents and people.
Summary The most common natural disasters in Europe are storms, hurricanes and, as a result, floods. In terms of economic losses and the volume of subsequent insurance payments, hurricanes and floods are the most financially significant. Hurricanes Lota and Martin in December 1999 caused damage estimated at 5 billion euros, damaging crops, forests and the infrastructure of settlements.
Homework Prepare a summary of the lesson learned using the following diagram
The territory of any region is exposed to hazardous natural phenomena, the development and negative manifestation of which in the form of catastrophes and natural disasters annually causes enormous damage and leads to human casualties. The most dangerous are tornadoes and hurricanes. The territory of any region is exposed to hazardous natural phenomena, the development and negative manifestation of which in the form of catastrophes and natural disasters annually causes enormous damage and leads to human casualties. The most dangerous are tornadoes and hurricanes.
From the cloud, cold air descends to the surface of the earth, towards the warm air rising up. There is a rotational movement of air - a tornado. Inside the tornado, the pressure drops dramatically. The tornado, having descended to the surface of the earth, spins with noise and, like a giant vacuum cleaner, sucks dust, sand, water, grass, stones and other objects into itself.
Tornadoes move at the speed with which they are driven by the wind: km / h. The average distance that a tornado travels is about 25 km, and the average tornado capture width is 150 m.
The tornado is estimated in points from 0 to 5 depending on its intensity and the consequences (destruction) caused. The intensity of the tornado is determined by the speed of the internal wind, which can range from 18 to 140 meters per second. Therefore, the nature of the destruction caused by a tornado is very different - from weak to catastrophic.
in America and Western Europe the terms "tornado" and "thrombus" are used. These words are synonymous with the word "tornado", because. denote the same phenomenon - a rotating vortex. By the way, the direction of rotation of air in the funnel of a tornado in the northern hemisphere is counterclockwise, and in the southern hemisphere it is clockwise.
With the receipt of information about the approach of a hurricane, doors, attics, and windows should be closed. Glue the glass with strips of paper. Remove objects from window sills that could cause injury if they fall. Turn off the gas. Prepare lanterns and candles. Create a supply of water and food for 2-3 days. Prepare medicines. Keep radios and televisions constantly on: they can transmit various messages and orders.
Introduction The territory of any region is subject to the complex impact of dozens of hazardous natural phenomena. The most characteristic natural phenomena in terms of frequency depending on the time of year and leading to the occurrence of emergencies are hurricanes, storms and tornadoes. Let's consider these phenomena. The photo shows a view of the storm from space.
Storm A storm is a type of hurricane and storm. Hurricanes and storms differ in wind speed, which reaches 120 km/h or more during a hurricane, and km/h during a storm. Damage from a hurricane is greater than from a storm.
How to act before a hurricane, storm, tornado. After receiving a storm warning signal, proceed to: reinforce the roof, chimneys and ventilation pipes; sealing windows in attic spaces (shutters, boards or plywood shields); the release of balconies and the territory of the yard from fire hazardous objects; to collect stocks of food and water for 2-3 days in case of evacuation to a safe area, as well as autonomous sources of lighting (lanterns, kerosene lamps, candles); move from light buildings to more durable buildings or to civil defense defenses.
How to act during a hurricane, storm, tornado. In the building, move away from the windows and take a safe place against the walls of the interior rooms. Put out the fire in the stoves, turn off the electricity, close the taps on the gas networks. At night, use lanterns, lamps, candles. Turn on the radio to receive information from the civil defense and emergency department and the emergency commission. If possible, stay in a deep shelter, in shelters, cellars, etc. On the streets of a settlement, stay as far away from light buildings, buildings, bridges, overpasses transmission lines. To protect against flying debris and glass fragments, use plywood sheets, cardboard and plastic boxes, boards and other improvised means
How to act during a hurricane, storm, tornado. When you receive a signal about the approach of a tornado, you must immediately go down to the shelter, the basement of the house or the cellar. Do not stay in the vehicle, get out and take cover as above.
After a hurricane, storm, tornado: Be careful around broken wires. Watch out for fallen trees, swinging shutters, signs, banners, gas leaks in the house, power outages (use electric lights until checking). Electrical appliances may only be used after they have been dried and checked. If the storm is accompanied by a thunderstorm, avoid electric shocks.
Summer 2002 Crimean coast. Windows and doors were shattered in apartments, roofs were torn off hundreds of houses. The wind knocked down trees, bent traffic lights and street lighting poles, as if with toys it dealt with newsstands and food stalls. The electricity and heat supply failed. People were left without light, water and heat. Television and radio broadcasting was silenced. It was impossible to convey the necessary information to the population. Mudflows that descended from the mountains washed away car campings into the sea along with cars, tents and people.
Summary The most common natural disasters in Europe are storms, hurricanes and, as a result, floods. In terms of economic losses and the volume of subsequent insurance payments, hurricanes and floods are the most financially significant. Hurricanes Lota and Martin in December 1999 caused damage estimated at 5 billion euros, damaging crops, forests and human settlements infrastructure.
Homework Prepare a summary of the lesson learned using the following diagram
complex impact of dozens of dangerous
natural phenomena. The most characteristic
natural phenomena by frequency in
depending on the time of year and leading
hurricanes and storms cause emergencies
The cause of hurricanes and storms is the formation of cyclones in the atmosphere.
THE CAUSE OF HURRICANSAND STORMS IS EDUCATION IN
ATMOSPHERE OF CYCLONES.
A cyclone is an area of low pressure in the atmosphere.
CYCLONE IS A REGIONREDUCED PRESSURE IN
ATMOSPHERE.
Areas where tropical cyclones originate
GENERATION AREASTROPICAL CYCLONES A hurricane is an atmospheric vortex
big size with speed
winds up to 120 km / h, and in a squat
layer up to 200 km/h.
Types of hurricanes:
TYPES OF HURRICANS:Hurricane (115-140 km/h)
Strong hurricane (140-170 km/h)
Severe hurricane (over 170 km/h) STORM - long, very strong
wind with a speed of more than 20 m/s.
Storm types:
STORM TYPES:Composition
By speed
wind
By color
particles
Sandy
Storms (20m/s)
black
Dust
strong storms
(28m/s)
Red
snowy
Violent storms
(30.5m/s or more)
yellow-red
White
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