New Area of Focus: Dangerous Weather Systems. New Area of Focus: Dangerous Weather Systems. Copyright © 2010 Ryan P. Murphy

Storms: Rapid changes in air pressure cause a disturbance. Storms: Rapid changes in air pressure cause a disturbance. Copyright © 2010 Ryan P. Murphy

Storms are not just on the planet Earth. Picture of the Giant Red Spot, a huge storm on the planet Jupiter.

Hurricane: A rotating tropical storm with severe winds.

–Winds of 74 miles (119 kilometers) per hour or greater.

Hurricane: A rotating tropical storm with severe winds. –Winds of 74 miles (119 kilometers) per hour or greater. –Usually accompanied by rain, thunder, and lightning.

Hurricane: A rotating tropical storm with severe winds. –Winds of 74 miles (119 kilometers) per hour or greater. –Usually accompanied by rain, thunder, and lightning. –Usually originate near the equator and travel North, or Northwest in the Northern Hemisphere (Coriolis Force).

Hurricane: A rotating tropical storm with severe winds. –Winds of 74 miles (119 kilometers) per hour or greater. –Usually accompanied by rain, thunder, and lightning. –Usually originate near the equator and travel North, or Northwest in the Northern Hemisphere (Coriolis Force). –Categories I-V (V is the largest)

Hurricanes form off the coast of Africa. These smaller storms gain strength in the warm Atlantic. (Video Optional) XxTY XxTY – Yhttp:// _detailpage&v=VF6pOpAXxTYhttp:// be.com/watch?feature=player_detailpage&v=VF 6pOpAXxTY

Before Hurricane

Storm Surge

Coastal Flood: Winds generated from tropical storms and hurricanes can drive ocean water inland and cause significant flooding. Copyright © 2010 Ryan P. Murphy

Coastal Flood: Winds generated from tropical storms and hurricanes can drive ocean water inland and cause significant flooding. – (Video) Copyright © 2010 Ryan P. Murphy

Hurricane Sandy 2012.

New York City after Hurricane Sandy.

Subway system.

New Jersey

NOTES FOR HURRICANE Tropical storm w/ winds over 119 km/ph Formed as warm humid air rises and forms clouds, then more air is drawn in to the system. Winds spiral inward toward one intensely low pressure storm center.

Notes on Hurricanes Formed over Atlantic’s warm waters north of the equator. Can also form in the warm Pacific (called typhoon) and the Indian Ocean (called cyclones). Forms in coastal areas – In the U.S., the coasts of the Atlantic Ocean and the Gulf of Mexico

Notes on Hurricanes Damage: Strong winds and heavy rains Most destructive part is often the storm surge – a huge mass of ocean water. Happens when the sea level rises several feet, backing up rivers and flooding the shore.

Thunderstorm: A storm with thunder and lightning as well as heavy rain or hail

Activity! Thunderstorm in the Classroom. Teacher will go to the middle of the circle and rotate very slowly in a circle around the room. Continue to make the sound effect until the teacher passes you again, where you can make the new sound effect. –Order on next slide.

Absolute Silence Rubbing hands together. Soft clicking / snap with fingers. Soft Clapping with hands. Clap on thighs “Pitter-Pat”. Stomp Feet “Boom!-Boom!” Clap on thighs “Pitter-Pat”. Soft Clapping with hands. Soft clicking / snap with fingers. Rubbing hands together. Absolute Silence

Hail

Freezing Line

Thunderstorms. Learn more at… thunderstorms.htm thunderstorms.htm

Video: Hail Footage in Thunderstorm. –

Lightning Safety.

-No place outside is safe!

Lightning Safety. -No place outside is safe! -If you can hear thunder you can be struck.

Lightning Safety. -No place outside is safe! -If you can hear thunder you can be struck. -Safe shelter is a substantial building or enclosed metal vehicle.

Lightning Safety. -No place outside is safe! -If you can hear thunder you can be struck. -Safe shelter is a substantial building or enclosed metal vehicle. -Remain in shelter for 30 minutes after the last thunder.

Lightning Safety. -No place outside is safe! -If you can hear thunder you can be struck. -Safe shelter is a substantial building or enclosed metal vehicle. -Remain in shelter for 30 minutes after the last thunder.

If your stuck outside. (This is a last resort)

–Avoid peaks and hills. Get to low ground

If your stuck outside. (This is a last resort) –Avoid peaks and hills. Get to low ground –Don’t be out in the open / on ponds, lakes, rivers or…

If your stuck outside. (This is a last resort) –Avoid peaks and hills. Get to low ground –Don’t be out in the open / on ponds, lakes, rivers or… Golf Courses

If your stuck outside. (This is a last resort) –Avoid peaks and hills. Get to low ground –Don’t be out in the open / on ponds, lakes, rivers or.. Golf Courses. –Stay away from objects that conduct electricity.

If your stuck outside. (This is a last resort) –Avoid peaks and hills. Get to low ground –Don’t be out in the open / on ponds, lakes, rivers or… Golf Courses. –Stay away from objects that conduct electricity. –Don’t use a tree for shelter.

If your stuck outside. (This is a last resort) –Avoid peaks and hills. Get to low ground –Don’t be out in the open / on ponds, lakes, rivers. –Stay away from objects that conduct electricity. –Don’t use a tree for shelter. –Don’t lay flat.

If your stuck outside. (This is a last resort) –Avoid peaks and hills. Get to low ground –Don’t be out in the open / on ponds, lakes, rivers. –Stay away from objects that conduct electricity. –Don’t use a tree for shelter. –Don’t lay flat. Use this crouch because …

this is better than…

Video! Lightning – wsMhttp:// wsM

NOTES ON THUNDERSTORMS Heavy rainstorm with thunder & lightning Formed anywhere Formed when warm air is forced upward rapidly at a cold front Damage: hail, high winds, lightning & floods

It’s late at night, dark, rainy, and then a flash of lightning…

TORNADOS

Tornado: A mobile, destructive vortex of violently rotating winds having the appearance of a funnel-shaped cloud and advancing beneath a large storm system.

–Can be small (80meters across) to more than several kilometers.

Tornado: A mobile, destructive vortex of violently rotating winds having the appearance of a funnel-shaped cloud and advancing beneath a large storm system. –Can be small (80meters across) to more than several kilometers. –Wind speeds from 177 km/h to more than 300 km/hr.

Tornado: A mobile, destructive vortex of violently rotating winds having the appearance of a funnel-shaped cloud and advancing beneath a large storm system. –Can be small (80meters across) to more than several kilometers. –Wind speeds from 177 km/h to more than 300 km/hr. –Categories F0 to F5 (F5 most destructive)

L L H H Strong updrafts of air come close to an unusually strong downdraft.

Vortex

Advancing Storm System

Some Tornado Safety –Be aware of storm systems and tornado warnings. –Stay Inside. Some homes such as mobile homes are not safe. –Go to the lowest point, and away from any windows or doors. Hide under a staircase, sturdy desk, bathroom. If you have no basement an interior room or hallway is best. –Last Resort! If stranded outside find a ditch and lay in it with your hands over your head.

Some Tornado Safety –Be aware of storm systems and tornado warnings. –Stay Inside. Some homes such as mobile homes are not safe. –Go to the lowest point, and away from any windows or doors. Hide under a staircase, sturdy desk, bathroom. If you have no basement an interior room or hallway is best. –Last Resort! If stranded outside find a ditch and lay in it with your hands over your head.

Some Tornado Safety –Be aware of storm systems and tornado warnings. –Stay Inside. Some homes such as mobile homes are not safe. –Go to the lowest point, and away from any windows or doors. Hide under a staircase, sturdy desk, bathroom. If you have no basement an interior room or hallway is best. –Last Resort! If stranded outside find a ditch and lay in it with your hands over your head.

Some Tornado Safety –Be aware of storm systems and tornado warnings. –Stay Inside. Some homes such as mobile homes are not safe. –Go to the lowest point, and away from any windows or doors. Hide under a staircase, sturdy desk, bathroom. If you have no basement an interior room or hallway is best. –Last Resort! If stranded outside find a ditch and lay in it with your hands over your head.

Video! Tornado Footage QM_chttps:// QM_c

NOTES ON TORNADOES Whirling funnel shaped cloud that touches down on the ground Tornado Alley is in the Great Plains (from Texas to the midwestern U.S., including Iowa, Kansas, Nebraska & Ohio.

NOTES on TORNADOS Forms when a thunderstorm meets horizontal winds at high altitudes. Spring & early summer, often late in the afternoon Damage: high speed winds; also from debris from the winds.