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Buildingsguide.com Tornado Safety Guide

TORNADO GUDE What is a Tornado? A tornado is a violently rotating column of air in contact with and extending between a cloud and the surface of the earth. Winds in most tornadoes blow at 100 mph or less, but in the most violent, and least frequent, wind speeds can exceed 250 mph. HOW THEY FORM { Rising air withing the thunderstorm updraft tilts the rotating air from horizontal to vertical Before thunderstorms develop, a An area of rotation, 2 -6 miles change in wind direction and an increase in wind speed with wide, now extends through much of the storm. Most strong and increasing height creates an invisible, horizontal spinning effect in the lower atmosphere. violent tornadoes form within this area of strong rotation. Several conditions are required for the development of tornadoes and the thunderstorm clouds with which most tornadoes are associated. Abundant low level moisture is necessary to contribute to the development of a thunderstorm, and a "trigger" (perhaps a cold front or other low level zone of converging winds) is needed to lift the moist air aloft. Once the air begins to rise and becomes saturated, it will continue rising to great heights and produce a thunderstorm cloud, if the atmosphere is unstable. An unstable atmosphere is one where the temperature decreases rapidly with height. Atmospheric instability can also occur when dry air overlays moist air near the earth's surface. Finally, tornadoes usually form in areas where winds at all levels of the atmosphere are not only strong, but also turn with height in a clockwise, or veering, direction. Tornadoes can appear as a traditional funnel shape, or in a slender rope-like form. Some have a churning, smoky look to them, and others contain "multiple vortices" - small, individual tornadoes rotating around a common center. Even others may be nearly invisible, with only swirling dust or debris at ground level as the only indication of the tornado's presence. { Types of Tornadoes Supercell Tornadoes Some of the most violent tornadoes Gustnado Weak and usually short-lived, a develop from supercell thunder- storms. A supercell thunderstorm is a long-lived thunderstorm possessing within its structure a continuously rotating updraft of air. Landspout Generally weaker than a supercell tornado, a landspout is not associated gustnado forms along the gust front with a wall cloud or mesocyclone. It may be observed beneath cumulon- imbus or towering cumulus clouds & is the land equivalent of a waterspout. of a thunderstorm, appearing as a temporary dust whirl or debris cloud. Waterspout A waterspout is a tornado over water. Generally forming in the hot sun Waterspouts are usually less intense & causes far less damage. Rarely more than fifty yards wide, it forms over warm tropical ocean waters, although its funnel is made of fresh- water droplets condensed from water vapor from condensation, not saltwater from the ocean. They Dust Devils Firewhirls Sometimes the intense heat created by a major forest fire or volcanic eruption can create what is known during the late morning or early afternoon hours, these mostly harmless whirlwinds are triggered by as a firewhirl, a tornado-like rotating light desert breezes that create a swirling plume of dust with speeds rarely over 70 mph. These differ from concentrates some initial weak whirl tornadoes in that they are not column of smoke and/or fire. This happens when the fire updraft or eddy in the wind. associated with a thunderstorm (or usually disperse before reaching land. any cloud), and are usually weaker than the weakest tornado. Tornado Safety } WHAT TO LOOK FOR: If you are at home during a tornado: > Dark, often greenish sky, wall cloud, large hail, loud > Go to a windowless interior room on lowest level of your house. Go to a storm cellar or basement if your house has one. If there is no basement, go to an inner hallway or a smaller inner room without windows, such as a bathroom or closet. roar; similar to a freight train. BEFORE THE STORM: > Develop a plan for you and your family for home, work, school and when outdoors. > Get away from the windows. > Go to the center of the room. Stay away from corners because they tend to attract debris. > Have frequent drills. > Know the county/parish in which you live, and keep a highway map nearby to follow storm movement from weather bulletins. > Get under a piece of sturdy furniture such as a workbench or heavy table or desk and hold on to it. > Use your arms to protect head and neck. > Have a NOAA Weather Radio with a warning alarm tone and battery back-up to receive warnings. > If you are in a mobile home, get out and find shelter elsewhere. > Listen to radio and television for information. > If planning a trip outdoors, listen to the latest forecasts & take necessary action if threatening weather is possible. If you are at work or A school during a tornado: If you are outdoors during a tornado: If you are in a car during a tornado: > Go to the basement or to an inside > If possible, get inside a building. hallway at the lowest level. > Never try to drive faster than a tornado in a car or truck. Tornadoes > If shelter is not available lie in a ditch > Avoid places with wide-span roofs such as auditoriums, cafeterias, large hallways, or shopping malls. or low-lying area or crouch near a strong building. Look out for flood waters which may also fill low areas. can change direction quickly and can lift up a car or truck and toss it through the air. > Get out of the car immediately and take shelter in a nearby building. > Get under a piece of sturdy furniture > Use your arms to protect head such as a workbench or heavy table or desk and hold on to it. and neck. > If there is no time to get indoors, get out of the car and lie in a ditch or low-lying area away from the vehicle. Be aware of the potential for flooding. > Use your arms to protect head and neck. { TOP TEN TORNADO FACTS 1 No terrain is safe from tornadoes. In the late 1980's, a tornado swept through Yellowstone National Park leaving a path of destruction up and down a 10,000 ft. mountain. 2 Violent winds and debris slamming into buildings cause most structural damage. Opening windows allows damaging winds to enter the structure. Leave the windows alone; instead, immediately go to a basement, interior room, or bathroom without windows. 69% of all tomadoes are labeled "weak tornadoes" meaning they have a lifetime of 1-10+ minutes and winds less than 110 mph. 29% of all tornadoes are labeled "strong tornadoes" meaning they last 20 minutes or longer and winds reach 110-205 mph. 6 2% of all tornadoes are labeled "violent tornadoes" and can last over an hour. 7 Tornadoes can occur at any time of the year. Tornadoes, often nicknamed "twisters," typically track along the ground for a few miles or less & are less 8 than 100 yards wide, though some monsters can remain in contact with the earth for well over fifty miles & exceed one mile in width. VORTEX is an acronym for Verification of the Origins of Rotation in Tornadoes EXperiment. May 29,31, 2004 close to 170 tornadoes broke out across 16 states, making it the largest outbreak of tornadoes in history. { TOP TEN DEADLIEST AMERICAN TORNADOES { 1 March 18, 1925 - "Tri-State" (Missouri, Illinois and Indiana) - 695 Deaths 2 May 7, 1840 - Natchez, Mississippi - 317 Deaths 3 May 27, 1896 - St. Louis, Missouri and East St. Louis, Illinois - 256 Deaths 4 April 5, 1936 - Tupelo, Mississippi - 216 Deaths 5 April 5, 1936 - Gainesville, Georgia - 203 Deaths 6 April 9, 1947 - Woodward, Oklahoma - 181 Deaths 7 May 22, 2011 - Joplin, Missouri - 161 Deaths 8 April 24, 1908 - Amite, Louisiana and Purvis, Mississippi - 143 Deaths 9 June 12, 1899 - New Richmond, Wisconsin - 117 Deaths 10 June 8, 1953 - Flint, Michigan - 116 Deaths http://eo.ucar.edu/kids/dangerwx/tornado5.htm http://en.wikipedia.org/wiki/Tornado http://www.theweatherchannelkids.com/ http://www.nssl.noaa.gov/edu/safety/tornadoguide.html 1 multiple quotes for building projects buildingsguide.com 00 OD O TORNADO GUDE What is a Tornado? A tornado is a violently rotating column of air in contact with and extending between a cloud and the surface of the earth. Winds in most tornadoes blow at 100 mph or less, but in the most violent, and least frequent, wind speeds can exceed 250 mph. HOW THEY FORM { Rising air withing the thunderstorm updraft tilts the rotating air from horizontal to vertical Before thunderstorms develop, a An area of rotation, 2 -6 miles change in wind direction and an increase in wind speed with wide, now extends through much of the storm. Most strong and increasing height creates an invisible, horizontal spinning effect in the lower atmosphere. violent tornadoes form within this area of strong rotation. Several conditions are required for the development of tornadoes and the thunderstorm clouds with which most tornadoes are associated. Abundant low level moisture is necessary to contribute to the development of a thunderstorm, and a "trigger" (perhaps a cold front or other low level zone of converging winds) is needed to lift the moist air aloft. Once the air begins to rise and becomes saturated, it will continue rising to great heights and produce a thunderstorm cloud, if the atmosphere is unstable. An unstable atmosphere is one where the temperature decreases rapidly with height. Atmospheric instability can also occur when dry air overlays moist air near the earth's surface. Finally, tornadoes usually form in areas where winds at all levels of the atmosphere are not only strong, but also turn with height in a clockwise, or veering, direction. Tornadoes can appear as a traditional funnel shape, or in a slender rope-like form. Some have a churning, smoky look to them, and others contain "multiple vortices" - small, individual tornadoes rotating around a common center. Even others may be nearly invisible, with only swirling dust or debris at ground level as the only indication of the tornado's presence. { Types of Tornadoes Supercell Tornadoes Some of the most violent tornadoes Gustnado Weak and usually short-lived, a develop from supercell thunder- storms. A supercell thunderstorm is a long-lived thunderstorm possessing within its structure a continuously rotating updraft of air. Landspout Generally weaker than a supercell tornado, a landspout is not associated gustnado forms along the gust front with a wall cloud or mesocyclone. It may be observed beneath cumulon- imbus or towering cumulus clouds & is the land equivalent of a waterspout. of a thunderstorm, appearing as a temporary dust whirl or debris cloud. Waterspout A waterspout is a tornado over water. Generally forming in the hot sun Waterspouts are usually less intense & causes far less damage. Rarely more than fifty yards wide, it forms over warm tropical ocean waters, although its funnel is made of fresh- water droplets condensed from water vapor from condensation, not saltwater from the ocean. They Dust Devils Firewhirls Sometimes the intense heat created by a major forest fire or volcanic eruption can create what is known during the late morning or early afternoon hours, these mostly harmless whirlwinds are triggered by as a firewhirl, a tornado-like rotating light desert breezes that create a swirling plume of dust with speeds rarely over 70 mph. These differ from concentrates some initial weak whirl tornadoes in that they are not column of smoke and/or fire. This happens when the fire updraft or eddy in the wind. associated with a thunderstorm (or usually disperse before reaching land. any cloud), and are usually weaker than the weakest tornado. Tornado Safety } WHAT TO LOOK FOR: If you are at home during a tornado: > Dark, often greenish sky, wall cloud, large hail, loud > Go to a windowless interior room on lowest level of your house. Go to a storm cellar or basement if your house has one. If there is no basement, go to an inner hallway or a smaller inner room without windows, such as a bathroom or closet. roar; similar to a freight train. BEFORE THE STORM: > Develop a plan for you and your family for home, work, school and when outdoors. > Get away from the windows. > Go to the center of the room. Stay away from corners because they tend to attract debris. > Have frequent drills. > Know the county/parish in which you live, and keep a highway map nearby to follow storm movement from weather bulletins. > Get under a piece of sturdy furniture such as a workbench or heavy table or desk and hold on to it. > Use your arms to protect head and neck. > Have a NOAA Weather Radio with a warning alarm tone and battery back-up to receive warnings. > If you are in a mobile home, get out and find shelter elsewhere. > Listen to radio and television for information. > If planning a trip outdoors, listen to the latest forecasts & take necessary action if threatening weather is possible. If you are at work or A school during a tornado: If you are outdoors during a tornado: If you are in a car during a tornado: > Go to the basement or to an inside > If possible, get inside a building. hallway at the lowest level. > Never try to drive faster than a tornado in a car or truck. Tornadoes > If shelter is not available lie in a ditch > Avoid places with wide-span roofs such as auditoriums, cafeterias, large hallways, or shopping malls. or low-lying area or crouch near a strong building. Look out for flood waters which may also fill low areas. can change direction quickly and can lift up a car or truck and toss it through the air. > Get out of the car immediately and take shelter in a nearby building. > Get under a piece of sturdy furniture > Use your arms to protect head such as a workbench or heavy table or desk and hold on to it. and neck. > If there is no time to get indoors, get out of the car and lie in a ditch or low-lying area away from the vehicle. Be aware of the potential for flooding. > Use your arms to protect head and neck. { TOP TEN TORNADO FACTS 1 No terrain is safe from tornadoes. In the late 1980's, a tornado swept through Yellowstone National Park leaving a path of destruction up and down a 10,000 ft. mountain. 2 Violent winds and debris slamming into buildings cause most structural damage. Opening windows allows damaging winds to enter the structure. Leave the windows alone; instead, immediately go to a basement, interior room, or bathroom without windows. 69% of all tomadoes are labeled "weak tornadoes" meaning they have a lifetime of 1-10+ minutes and winds less than 110 mph. 29% of all tornadoes are labeled "strong tornadoes" meaning they last 20 minutes or longer and winds reach 110-205 mph. 6 2% of all tornadoes are labeled "violent tornadoes" and can last over an hour. 7 Tornadoes can occur at any time of the year. Tornadoes, often nicknamed "twisters," typically track along the ground for a few miles or less & are less 8 than 100 yards wide, though some monsters can remain in contact with the earth for well over fifty miles & exceed one mile in width. VORTEX is an acronym for Verification of the Origins of Rotation in Tornadoes EXperiment. May 29,31, 2004 close to 170 tornadoes broke out across 16 states, making it the largest outbreak of tornadoes in history. { TOP TEN DEADLIEST AMERICAN TORNADOES { 1 March 18, 1925 - "Tri-State" (Missouri, Illinois and Indiana) - 695 Deaths 2 May 7, 1840 - Natchez, Mississippi - 317 Deaths 3 May 27, 1896 - St. Louis, Missouri and East St. Louis, Illinois - 256 Deaths 4 April 5, 1936 - Tupelo, Mississippi - 216 Deaths 5 April 5, 1936 - Gainesville, Georgia - 203 Deaths 6 April 9, 1947 - Woodward, Oklahoma - 181 Deaths 7 May 22, 2011 - Joplin, Missouri - 161 Deaths 8 April 24, 1908 - Amite, Louisiana and Purvis, Mississippi - 143 Deaths 9 June 12, 1899 - New Richmond, Wisconsin - 117 Deaths 10 June 8, 1953 - Flint, Michigan - 116 Deaths http://eo.ucar.edu/kids/dangerwx/tornado5.htm http://en.wikipedia.org/wiki/Tornado http://www.theweatherchannelkids.com/ http://www.nssl.noaa.gov/edu/safety/tornadoguide.html 1 multiple quotes for building projects buildingsguide.com 00 OD O TORNADO GUDE What is a Tornado? A tornado is a violently rotating column of air in contact with and extending between a cloud and the surface of the earth. Winds in most tornadoes blow at 100 mph or less, but in the most violent, and least frequent, wind speeds can exceed 250 mph. HOW THEY FORM { Rising air withing the thunderstorm updraft tilts the rotating air from horizontal to vertical Before thunderstorms develop, a An area of rotation, 2 -6 miles change in wind direction and an increase in wind speed with wide, now extends through much of the storm. Most strong and increasing height creates an invisible, horizontal spinning effect in the lower atmosphere. violent tornadoes form within this area of strong rotation. Several conditions are required for the development of tornadoes and the thunderstorm clouds with which most tornadoes are associated. Abundant low level moisture is necessary to contribute to the development of a thunderstorm, and a "trigger" (perhaps a cold front or other low level zone of converging winds) is needed to lift the moist air aloft. Once the air begins to rise and becomes saturated, it will continue rising to great heights and produce a thunderstorm cloud, if the atmosphere is unstable. An unstable atmosphere is one where the temperature decreases rapidly with height. Atmospheric instability can also occur when dry air overlays moist air near the earth's surface. Finally, tornadoes usually form in areas where winds at all levels of the atmosphere are not only strong, but also turn with height in a clockwise, or veering, direction. Tornadoes can appear as a traditional funnel shape, or in a slender rope-like form. Some have a churning, smoky look to them, and others contain "multiple vortices" - small, individual tornadoes rotating around a common center. Even others may be nearly invisible, with only swirling dust or debris at ground level as the only indication of the tornado's presence. { Types of Tornadoes Supercell Tornadoes Some of the most violent tornadoes Gustnado Weak and usually short-lived, a develop from supercell thunder- storms. A supercell thunderstorm is a long-lived thunderstorm possessing within its structure a continuously rotating updraft of air. Landspout Generally weaker than a supercell tornado, a landspout is not associated gustnado forms along the gust front with a wall cloud or mesocyclone. It may be observed beneath cumulon- imbus or towering cumulus clouds & is the land equivalent of a waterspout. of a thunderstorm, appearing as a temporary dust whirl or debris cloud. Waterspout A waterspout is a tornado over water. Generally forming in the hot sun Waterspouts are usually less intense & causes far less damage. Rarely more than fifty yards wide, it forms over warm tropical ocean waters, although its funnel is made of fresh- water droplets condensed from water vapor from condensation, not saltwater from the ocean. They Dust Devils Firewhirls Sometimes the intense heat created by a major forest fire or volcanic eruption can create what is known during the late morning or early afternoon hours, these mostly harmless whirlwinds are triggered by as a firewhirl, a tornado-like rotating light desert breezes that create a swirling plume of dust with speeds rarely over 70 mph. These differ from concentrates some initial weak whirl tornadoes in that they are not column of smoke and/or fire. This happens when the fire updraft or eddy in the wind. associated with a thunderstorm (or usually disperse before reaching land. any cloud), and are usually weaker than the weakest tornado. Tornado Safety } WHAT TO LOOK FOR: If you are at home during a tornado: > Dark, often greenish sky, wall cloud, large hail, loud > Go to a windowless interior room on lowest level of your house. Go to a storm cellar or basement if your house has one. If there is no basement, go to an inner hallway or a smaller inner room without windows, such as a bathroom or closet. roar; similar to a freight train. BEFORE THE STORM: > Develop a plan for you and your family for home, work, school and when outdoors. > Get away from the windows. > Go to the center of the room. Stay away from corners because they tend to attract debris. > Have frequent drills. > Know the county/parish in which you live, and keep a highway map nearby to follow storm movement from weather bulletins. > Get under a piece of sturdy furniture such as a workbench or heavy table or desk and hold on to it. > Use your arms to protect head and neck. > Have a NOAA Weather Radio with a warning alarm tone and battery back-up to receive warnings. > If you are in a mobile home, get out and find shelter elsewhere. > Listen to radio and television for information. > If planning a trip outdoors, listen to the latest forecasts & take necessary action if threatening weather is possible. If you are at work or A school during a tornado: If you are outdoors during a tornado: If you are in a car during a tornado: > Go to the basement or to an inside > If possible, get inside a building. hallway at the lowest level. > Never try to drive faster than a tornado in a car or truck. Tornadoes > If shelter is not available lie in a ditch > Avoid places with wide-span roofs such as auditoriums, cafeterias, large hallways, or shopping malls. or low-lying area or crouch near a strong building. Look out for flood waters which may also fill low areas. can change direction quickly and can lift up a car or truck and toss it through the air. > Get out of the car immediately and take shelter in a nearby building. > Get under a piece of sturdy furniture > Use your arms to protect head such as a workbench or heavy table or desk and hold on to it. and neck. > If there is no time to get indoors, get out of the car and lie in a ditch or low-lying area away from the vehicle. Be aware of the potential for flooding. > Use your arms to protect head and neck. { TOP TEN TORNADO FACTS 1 No terrain is safe from tornadoes. In the late 1980's, a tornado swept through Yellowstone National Park leaving a path of destruction up and down a 10,000 ft. mountain. 2 Violent winds and debris slamming into buildings cause most structural damage. Opening windows allows damaging winds to enter the structure. Leave the windows alone; instead, immediately go to a basement, interior room, or bathroom without windows. 69% of all tomadoes are labeled "weak tornadoes" meaning they have a lifetime of 1-10+ minutes and winds less than 110 mph. 29% of all tornadoes are labeled "strong tornadoes" meaning they last 20 minutes or longer and winds reach 110-205 mph. 6 2% of all tornadoes are labeled "violent tornadoes" and can last over an hour. 7 Tornadoes can occur at any time of the year. Tornadoes, often nicknamed "twisters," typically track along the ground for a few miles or less & are less 8 than 100 yards wide, though some monsters can remain in contact with the earth for well over fifty miles & exceed one mile in width. VORTEX is an acronym for Verification of the Origins of Rotation in Tornadoes EXperiment. May 29,31, 2004 close to 170 tornadoes broke out across 16 states, making it the largest outbreak of tornadoes in history. { TOP TEN DEADLIEST AMERICAN TORNADOES { 1 March 18, 1925 - "Tri-State" (Missouri, Illinois and Indiana) - 695 Deaths 2 May 7, 1840 - Natchez, Mississippi - 317 Deaths 3 May 27, 1896 - St. Louis, Missouri and East St. Louis, Illinois - 256 Deaths 4 April 5, 1936 - Tupelo, Mississippi - 216 Deaths 5 April 5, 1936 - Gainesville, Georgia - 203 Deaths 6 April 9, 1947 - Woodward, Oklahoma - 181 Deaths 7 May 22, 2011 - Joplin, Missouri - 161 Deaths 8 April 24, 1908 - Amite, Louisiana and Purvis, Mississippi - 143 Deaths 9 June 12, 1899 - New Richmond, Wisconsin - 117 Deaths 10 June 8, 1953 - Flint, Michigan - 116 Deaths http://eo.ucar.edu/kids/dangerwx/tornado5.htm http://en.wikipedia.org/wiki/Tornado http://www.theweatherchannelkids.com/ http://www.nssl.noaa.gov/edu/safety/tornadoguide.html 1 multiple quotes for building projects buildingsguide.com 00 OD O TORNADO GUDE What is a Tornado? A tornado is a violently rotating column of air in contact with and extending between a cloud and the surface of the earth. Winds in most tornadoes blow at 100 mph or less, but in the most violent, and least frequent, wind speeds can exceed 250 mph. HOW THEY FORM { Rising air withing the thunderstorm updraft tilts the rotating air from horizontal to vertical Before thunderstorms develop, a An area of rotation, 2 -6 miles change in wind direction and an increase in wind speed with wide, now extends through much of the storm. Most strong and increasing height creates an invisible, horizontal spinning effect in the lower atmosphere. violent tornadoes form within this area of strong rotation. Several conditions are required for the development of tornadoes and the thunderstorm clouds with which most tornadoes are associated. Abundant low level moisture is necessary to contribute to the development of a thunderstorm, and a "trigger" (perhaps a cold front or other low level zone of converging winds) is needed to lift the moist air aloft. Once the air begins to rise and becomes saturated, it will continue rising to great heights and produce a thunderstorm cloud, if the atmosphere is unstable. An unstable atmosphere is one where the temperature decreases rapidly with height. Atmospheric instability can also occur when dry air overlays moist air near the earth's surface. Finally, tornadoes usually form in areas where winds at all levels of the atmosphere are not only strong, but also turn with height in a clockwise, or veering, direction. Tornadoes can appear as a traditional funnel shape, or in a slender rope-like form. Some have a churning, smoky look to them, and others contain "multiple vortices" - small, individual tornadoes rotating around a common center. Even others may be nearly invisible, with only swirling dust or debris at ground level as the only indication of the tornado's presence. { Types of Tornadoes Supercell Tornadoes Some of the most violent tornadoes Gustnado Weak and usually short-lived, a develop from supercell thunder- storms. A supercell thunderstorm is a long-lived thunderstorm possessing within its structure a continuously rotating updraft of air. Landspout Generally weaker than a supercell tornado, a landspout is not associated gustnado forms along the gust front with a wall cloud or mesocyclone. It may be observed beneath cumulon- imbus or towering cumulus clouds & is the land equivalent of a waterspout. of a thunderstorm, appearing as a temporary dust whirl or debris cloud. Waterspout A waterspout is a tornado over water. Generally forming in the hot sun Waterspouts are usually less intense & causes far less damage. Rarely more than fifty yards wide, it forms over warm tropical ocean waters, although its funnel is made of fresh- water droplets condensed from water vapor from condensation, not saltwater from the ocean. They Dust Devils Firewhirls Sometimes the intense heat created by a major forest fire or volcanic eruption can create what is known during the late morning or early afternoon hours, these mostly harmless whirlwinds are triggered by as a firewhirl, a tornado-like rotating light desert breezes that create a swirling plume of dust with speeds rarely over 70 mph. These differ from concentrates some initial weak whirl tornadoes in that they are not column of smoke and/or fire. This happens when the fire updraft or eddy in the wind. associated with a thunderstorm (or usually disperse before reaching land. any cloud), and are usually weaker than the weakest tornado. Tornado Safety } WHAT TO LOOK FOR: If you are at home during a tornado: > Dark, often greenish sky, wall cloud, large hail, loud > Go to a windowless interior room on lowest level of your house. Go to a storm cellar or basement if your house has one. If there is no basement, go to an inner hallway or a smaller inner room without windows, such as a bathroom or closet. roar; similar to a freight train. BEFORE THE STORM: > Develop a plan for you and your family for home, work, school and when outdoors. > Get away from the windows. > Go to the center of the room. Stay away from corners because they tend to attract debris. > Have frequent drills. > Know the county/parish in which you live, and keep a highway map nearby to follow storm movement from weather bulletins. > Get under a piece of sturdy furniture such as a workbench or heavy table or desk and hold on to it. > Use your arms to protect head and neck. > Have a NOAA Weather Radio with a warning alarm tone and battery back-up to receive warnings. > If you are in a mobile home, get out and find shelter elsewhere. > Listen to radio and television for information. > If planning a trip outdoors, listen to the latest forecasts & take necessary action if threatening weather is possible. If you are at work or A school during a tornado: If you are outdoors during a tornado: If you are in a car during a tornado: > Go to the basement or to an inside > If possible, get inside a building. hallway at the lowest level. > Never try to drive faster than a tornado in a car or truck. Tornadoes > If shelter is not available lie in a ditch > Avoid places with wide-span roofs such as auditoriums, cafeterias, large hallways, or shopping malls. or low-lying area or crouch near a strong building. Look out for flood waters which may also fill low areas. can change direction quickly and can lift up a car or truck and toss it through the air. > Get out of the car immediately and take shelter in a nearby building. > Get under a piece of sturdy furniture > Use your arms to protect head such as a workbench or heavy table or desk and hold on to it. and neck. > If there is no time to get indoors, get out of the car and lie in a ditch or low-lying area away from the vehicle. Be aware of the potential for flooding. > Use your arms to protect head and neck. { TOP TEN TORNADO FACTS 1 No terrain is safe from tornadoes. In the late 1980's, a tornado swept through Yellowstone National Park leaving a path of destruction up and down a 10,000 ft. mountain. 2 Violent winds and debris slamming into buildings cause most structural damage. Opening windows allows damaging winds to enter the structure. Leave the windows alone; instead, immediately go to a basement, interior room, or bathroom without windows. 69% of all tomadoes are labeled "weak tornadoes" meaning they have a lifetime of 1-10+ minutes and winds less than 110 mph. 29% of all tornadoes are labeled "strong tornadoes" meaning they last 20 minutes or longer and winds reach 110-205 mph. 6 2% of all tornadoes are labeled "violent tornadoes" and can last over an hour. 7 Tornadoes can occur at any time of the year. Tornadoes, often nicknamed "twisters," typically track along the ground for a few miles or less & are less 8 than 100 yards wide, though some monsters can remain in contact with the earth for well over fifty miles & exceed one mile in width. VORTEX is an acronym for Verification of the Origins of Rotation in Tornadoes EXperiment. May 29,31, 2004 close to 170 tornadoes broke out across 16 states, making it the largest outbreak of tornadoes in history. { TOP TEN DEADLIEST AMERICAN TORNADOES { 1 March 18, 1925 - "Tri-State" (Missouri, Illinois and Indiana) - 695 Deaths 2 May 7, 1840 - Natchez, Mississippi - 317 Deaths 3 May 27, 1896 - St. Louis, Missouri and East St. Louis, Illinois - 256 Deaths 4 April 5, 1936 - Tupelo, Mississippi - 216 Deaths 5 April 5, 1936 - Gainesville, Georgia - 203 Deaths 6 April 9, 1947 - Woodward, Oklahoma - 181 Deaths 7 May 22, 2011 - Joplin, Missouri - 161 Deaths 8 April 24, 1908 - Amite, Louisiana and Purvis, Mississippi - 143 Deaths 9 June 12, 1899 - New Richmond, Wisconsin - 117 Deaths 10 June 8, 1953 - Flint, Michigan - 116 Deaths http://eo.ucar.edu/kids/dangerwx/tornado5.htm http://en.wikipedia.org/wiki/Tornado http://www.theweatherchannelkids.com/ http://www.nssl.noaa.gov/edu/safety/tornadoguide.html 1 multiple quotes for building projects buildingsguide.com 00 OD O TORNADO GUDE What is a Tornado? A tornado is a violently rotating column of air in contact with and extending between a cloud and the surface of the earth. Winds in most tornadoes blow at 100 mph or less, but in the most violent, and least frequent, wind speeds can exceed 250 mph. HOW THEY FORM { Rising air withing the thunderstorm updraft tilts the rotating air from horizontal to vertical Before thunderstorms develop, a An area of rotation, 2 -6 miles change in wind direction and an increase in wind speed with wide, now extends through much of the storm. Most strong and increasing height creates an invisible, horizontal spinning effect in the lower atmosphere. violent tornadoes form within this area of strong rotation. Several conditions are required for the development of tornadoes and the thunderstorm clouds with which most tornadoes are associated. Abundant low level moisture is necessary to contribute to the development of a thunderstorm, and a "trigger" (perhaps a cold front or other low level zone of converging winds) is needed to lift the moist air aloft. Once the air begins to rise and becomes saturated, it will continue rising to great heights and produce a thunderstorm cloud, if the atmosphere is unstable. An unstable atmosphere is one where the temperature decreases rapidly with height. Atmospheric instability can also occur when dry air overlays moist air near the earth's surface. Finally, tornadoes usually form in areas where winds at all levels of the atmosphere are not only strong, but also turn with height in a clockwise, or veering, direction. Tornadoes can appear as a traditional funnel shape, or in a slender rope-like form. Some have a churning, smoky look to them, and others contain "multiple vortices" - small, individual tornadoes rotating around a common center. Even others may be nearly invisible, with only swirling dust or debris at ground level as the only indication of the tornado's presence. { Types of Tornadoes Supercell Tornadoes Some of the most violent tornadoes Gustnado Weak and usually short-lived, a develop from supercell thunder- storms. A supercell thunderstorm is a long-lived thunderstorm possessing within its structure a continuously rotating updraft of air. Landspout Generally weaker than a supercell tornado, a landspout is not associated gustnado forms along the gust front with a wall cloud or mesocyclone. It may be observed beneath cumulon- imbus or towering cumulus clouds & is the land equivalent of a waterspout. of a thunderstorm, appearing as a temporary dust whirl or debris cloud. Waterspout A waterspout is a tornado over water. Generally forming in the hot sun Waterspouts are usually less intense & causes far less damage. Rarely more than fifty yards wide, it forms over warm tropical ocean waters, although its funnel is made of fresh- water droplets condensed from water vapor from condensation, not saltwater from the ocean. They Dust Devils Firewhirls Sometimes the intense heat created by a major forest fire or volcanic eruption can create what is known during the late morning or early afternoon hours, these mostly harmless whirlwinds are triggered by as a firewhirl, a tornado-like rotating light desert breezes that create a swirling plume of dust with speeds rarely over 70 mph. These differ from concentrates some initial weak whirl tornadoes in that they are not column of smoke and/or fire. This happens when the fire updraft or eddy in the wind. associated with a thunderstorm (or usually disperse before reaching land. any cloud), and are usually weaker than the weakest tornado. Tornado Safety } WHAT TO LOOK FOR: If you are at home during a tornado: > Dark, often greenish sky, wall cloud, large hail, loud > Go to a windowless interior room on lowest level of your house. Go to a storm cellar or basement if your house has one. If there is no basement, go to an inner hallway or a smaller inner room without windows, such as a bathroom or closet. roar; similar to a freight train. BEFORE THE STORM: > Develop a plan for you and your family for home, work, school and when outdoors. > Get away from the windows. > Go to the center of the room. Stay away from corners because they tend to attract debris. > Have frequent drills. > Know the county/parish in which you live, and keep a highway map nearby to follow storm movement from weather bulletins. > Get under a piece of sturdy furniture such as a workbench or heavy table or desk and hold on to it. > Use your arms to protect head and neck. > Have a NOAA Weather Radio with a warning alarm tone and battery back-up to receive warnings. > If you are in a mobile home, get out and find shelter elsewhere. > Listen to radio and television for information. > If planning a trip outdoors, listen to the latest forecasts & take necessary action if threatening weather is possible. If you are at work or A school during a tornado: If you are outdoors during a tornado: If you are in a car during a tornado: > Go to the basement or to an inside > If possible, get inside a building. hallway at the lowest level. > Never try to drive faster than a tornado in a car or truck. Tornadoes > If shelter is not available lie in a ditch > Avoid places with wide-span roofs such as auditoriums, cafeterias, large hallways, or shopping malls. or low-lying area or crouch near a strong building. Look out for flood waters which may also fill low areas. can change direction quickly and can lift up a car or truck and toss it through the air. > Get out of the car immediately and take shelter in a nearby building. > Get under a piece of sturdy furniture > Use your arms to protect head such as a workbench or heavy table or desk and hold on to it. and neck. > If there is no time to get indoors, get out of the car and lie in a ditch or low-lying area away from the vehicle. Be aware of the potential for flooding. > Use your arms to protect head and neck. { TOP TEN TORNADO FACTS 1 No terrain is safe from tornadoes. In the late 1980's, a tornado swept through Yellowstone National Park leaving a path of destruction up and down a 10,000 ft. mountain. 2 Violent winds and debris slamming into buildings cause most structural damage. Opening windows allows damaging winds to enter the structure. Leave the windows alone; instead, immediately go to a basement, interior room, or bathroom without windows. 69% of all tomadoes are labeled "weak tornadoes" meaning they have a lifetime of 1-10+ minutes and winds less than 110 mph. 29% of all tornadoes are labeled "strong tornadoes" meaning they last 20 minutes or longer and winds reach 110-205 mph. 6 2% of all tornadoes are labeled "violent tornadoes" and can last over an hour. 7 Tornadoes can occur at any time of the year. Tornadoes, often nicknamed "twisters," typically track along the ground for a few miles or less & are less 8 than 100 yards wide, though some monsters can remain in contact with the earth for well over fifty miles & exceed one mile in width. VORTEX is an acronym for Verification of the Origins of Rotation in Tornadoes EXperiment. May 29,31, 2004 close to 170 tornadoes broke out across 16 states, making it the largest outbreak of tornadoes in history. { TOP TEN DEADLIEST AMERICAN TORNADOES { 1 March 18, 1925 - "Tri-State" (Missouri, Illinois and Indiana) - 695 Deaths 2 May 7, 1840 - Natchez, Mississippi - 317 Deaths 3 May 27, 1896 - St. Louis, Missouri and East St. Louis, Illinois - 256 Deaths 4 April 5, 1936 - Tupelo, Mississippi - 216 Deaths 5 April 5, 1936 - Gainesville, Georgia - 203 Deaths 6 April 9, 1947 - Woodward, Oklahoma - 181 Deaths 7 May 22, 2011 - Joplin, Missouri - 161 Deaths 8 April 24, 1908 - Amite, Louisiana and Purvis, Mississippi - 143 Deaths 9 June 12, 1899 - New Richmond, Wisconsin - 117 Deaths 10 June 8, 1953 - Flint, Michigan - 116 Deaths http://eo.ucar.edu/kids/dangerwx/tornado5.htm http://en.wikipedia.org/wiki/Tornado http://www.theweatherchannelkids.com/ http://www.nssl.noaa.gov/edu/safety/tornadoguide.html 1 multiple quotes for building projects buildingsguide.com 00 OD O

Buildingsguide.com Tornado Safety Guide

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Tornadoes can have devastating effects on homes, buildings, and communities as a whole. The tornado guide includes facts and information about tornadoes such as how tornadoes form, types of tornadoes,...

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