1 / 54

Clouds

Clouds. Formation of Clouds Flow Chart: Create a flow chart describing the formation of clouds, correctly ordering the statements below . Air eventually becomes saturated Millions of droplets of liquid water collect to form a cloud Warm air rises and cools.

chance
Download Presentation

Clouds

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Clouds

  2. Formation of Clouds Flow Chart: Create a flow chart describing the formation of clouds, correctly ordering the statements below • Air eventually becomes saturated • Millions of droplets of liquid water collect to form a cloud • Warm air rises and cools. • Water vapor condenses on smoke, dust, salt and other small particles suspended in the air • Water vapor is added to the air (evaporation)

  3. How Does a Cloud Form?

  4. Cloud Cornell Notes

  5. Clouds • A cloud is a collection of millions of tiny water droplets or ice crystals

  6. Different Types of Clouds • There are three main categories of clouds:- Cumulus clouds- Stratus clouds- Cirrus clouds

  7. Cumulus Clouds • Puffy, white clouds with flat bottoms • Generally mean fair weather

  8. Cumulonimbus • When cumulus clouds get bigger they produce dark, puff cumulonimbus clouds which indicate thunderstorms

  9. Stratus Clouds • Form in layers • Cover large areas of the sky and can block out the sun • Caused by a gentle lifting of a large body of air

  10. Nimbostratus & Fog • Nimbostratus clouds: are dark and usually produce continuous rain • Fog: When stratus clouds form near the ground, it is called fog

  11. Cirrus Clouds • Thin, feathery, white clouds found at high altitudes • Form when the wind is strong • Can indicate bad weather if they thicken

  12. Practice • Versatiles: High Sign of Weather

  13. Severe Weather

  14. Storms Cornell Notes

  15. THUNDERSTORMS

  16. Brainpop: Thunderstorm

  17. Thunderstorms • Thunderstorms are caused by the vertical movement of warm air • Thunderstorms develop in three stages:

  18. CUMULUS STAGE • Cumulus stage- warm air moves upward which produces moist winds

  19. MATURE STAGE 2. Mature stage- a cumulonimbus cloud releases heavy precipitation (rain, sleet, or snow)

  20. DISSIPATING STAGE • Dissipating stage- air begins to move downward which causes the thunderstorm to end

  21. Thunderstorms In the United States the western half of the country has the least amount of thunderstorm activity because warm, moist tropical air is not common in this area.

  22. THUNDER and LIGHTENING Air builds up + and – electrical charges; current flows between opposite charges and lightening is produced. Rapid heating of air around a lightning bolt creates Thunder

  23. TORNADOES

  24. Brainpop: Tornado

  25. Tornadoes • Tornados: Violent whirling wind that stretch from the cloud to the ground • Most occur in North America

  26. Formation of Tornadoes • Warm air masses from Gulf of Mexico move north and meet cold, dense air and form thunderstorms • Strong upward movement of air cause a vertical cylinder of rotating air, also called a mesocyclone to form.

  27. Hurricanes • http://gpb.pbslearningmedia.org/resource/ess05.sci.ess.watcyc.hurricane/hurricanes-new-tools-for-predicting/ • http://gpb.pbslearningmedia.org/resource/nves.sci.earth.hurricane/water-vapor-fuels-hurricanes/

  28. Check for Understanding: order these pictures 1-4

  29. Hurricane Flow Map

  30. Hurricane Flow Map

  31. Checks for Understanding • Interactive online quiz • http://www.pbs.org/teachers/connect/resources/238/preview/

  32. Share---what happened to this town? 

  33. Tropical Cyclone

  34. Cyclone, Hurricane, Typhoon… oh my Same type of storm, just form and occur in different oceans! • Hurricane= Atlantic ocean, Eastern pacific including Hawaiian islands • Typhoon = Western pacific • Cyclone = Southern pacific and Indian ocean • Check for understanding: What do we call our storm?

  35. What Is a Hurricane? • A Hurricane is a large, swirling, low pressure system that forms over tropical oceans. • Has wind speeds of at least 74 mph • In other countries they are also known as typhoons and cyclones What states they hit: http://www.nhc.noaa.gov/prepare/ http://www.brainpop.com/science/weather/hurricanes/

  36. HURRICANES • The wall that is created from the air rising is called an eye wall. • The eyeis the center of the hurricane. • In the eye there are no winds or precipitation. • Only calm spot in the storm.

  37. http://www.cbsnews.com/htdocs/natural_disasters/hurricanes/framesource_flash.htmlhttp://www.cbsnews.com/htdocs/natural_disasters/hurricanes/framesource_flash.html

  38. When do hurricane’s happen? • Critical Thinking: What season do you think is Hurricane season in the US? (hint: think about warm waters or make a life-connection and think about when you have heard about them on the news!) • The Atlantic Ocean, Caribbean Sea and Gulf of Mexico hurricane season runs from June 1 through Nov. 30. • Most hurricanes occur from around the middle of August through the middle of October

  39. Can anything stop these powerful storms? • Critical Thinking: Hurricanes depend on the tropical warm water and the evaporation in order to keep shape… so what do you think could stop them? As hurricanes travel over colder water or over land they lose their evaporation which causes them to weaken.

  40. Just shy of hurricane: • Tropical DepressionAn organized system of clouds and thunderstorms with a defined surface circulation and maximum sustained winds* of 38 mph or less • Tropical StormAn organized system of strong thunderstorms with a defined surface circulation and maximum sustained winds of 39-73 mph

  41. Hurricane Categories: • Category One Hurricane (Sustained winds 74-95 mph, 64-82 kt, or 119-153 km/hr)-- Very dangerous winds will produce some damage • Category Two Hurricane (Sustained winds 96-110 mph, 83-95 kt, or 154-177 km/hr)--Extremely dangerous winds will cause extensive damage • Category Three Hurricane (Sustained winds 111-130 mph, 96-113 kt, or 178-209 km/hr)-- Devastating damage will occur • Category Four Hurricane (Sustained winds 131-155 mph, 114-135 kt, or 210-249 km/hr)--Catastrophic damage will occur • Category Five Hurricane (Sustained winds greater than 155 mph, greater than 135 kt, or greater than 249 km/hr).-- Catastrophic damage will occur

  42. Damage Caused by Hurricanes http://www.nhc.noaa.gov/prepare/ • Hurricane winds can knock down trees and telephone poles • However, the most damage during a hurricane comes from flooding due to heavy rain and storm surges • A storm surge is a wall of water that builds up over the ocean and can be up to 20 feet before it crashes onto the shore

  43. Hurricane Names

  44. Hurricane Katrina—New OrleansLet’s see what it looks like! Why was Hurricane Katrina so devastating compared to other hurricanes? http://video.nationalgeographic.com/video/environment/environment-natural-disasters/hurricanes/katrina/ http://www.pbs.org/teachers/connect/resources/238/preview/ ^^Video The Storm that Drowned the City—show first (2 minutes preview whole movie, first 8 minutes on predicting and tracking and formation of storm, 27 minutes starts storm hitting footage, 41 minutes starts damage footage from day after)

  45. Practice • Hurricane Worksheet: Use the Hurricane readings to answer the Hurricane worksheet (front and back) • Finish reading questions tomorrow • Work on Meteorology Review Worksheet when finished • Page 1 & 2: Due Monday • Page 3 & 4: Due Tuesday • Test: Wednesday

  46. What do you know about… • Precipitation? • How does it form? • What types are there? • Things other than water falling from the sky? • Evaporation- can anything other than water evaporate? • Jot down your current ideas

  47. Fish Are Falling On My Head! • Have you ever heard of fish falling from the sky? Well, check this out!

More Related