Your SlideShare is downloading. ×
0
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Weather patterns 24 5
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Weather patterns 24 5

776

Published on

Published in: Education
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
776
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
25
Comments
0
Likes
1
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Weather Patterns 24.5 Air Masses Fronts Storms
  • 2. Air Mass <ul><li>A large body of air with uniform Properties </li></ul><ul><ul><li>Temp—Moisture—Altitude </li></ul></ul><ul><li>Can cover large portions of continent </li></ul>
  • 3. What Influences Air Masses? <ul><li>Influenced by region </li></ul><ul><ul><li>Ex. Gulf of Mexico = Moist hot weather </li></ul></ul><ul><ul><li>Ex. NW Canada = Cold dry weather </li></ul></ul>
  • 4. What Influences Air Masses? <ul><li>Where does it form: </li></ul><ul><ul><li>Over water = moisture </li></ul></ul><ul><ul><li>Over land = dry </li></ul></ul><ul><ul><li>Latitude = polar = cold </li></ul></ul><ul><ul><li>Latitude = tropical / equator = warm </li></ul></ul>
  • 5.  
  • 6. Fronts <ul><li>Boundary between two air masses </li></ul><ul><li>Air masses move because the Jet stream pushes air masses </li></ul><ul><li>Cold Front: when a cold air mass moves over a warm air mass </li></ul>
  • 7. Warm Front: <ul><li>when a warm-air mass over takes a cold dry air mass </li></ul>
  • 8. Fronts <ul><li>Stationary Front: when two fronts overrun each other and it stays… </li></ul><ul><ul><li>no movement </li></ul></ul>
  • 9. Front <ul><li>Occluded Front: when a warm front is caught between two cold fronts/masses </li></ul>
  • 10.  
  • 11. Low and High pressure systems <ul><li>Cyclones have a center of low air pressure. They circulate counterclockwise. </li></ul><ul><ul><li>They are associated with clouds, precipitation and storms. </li></ul></ul><ul><li>Anticyclones have a swirling center of high air pressure </li></ul><ul><ul><li>They are associated with clear skies and calm conditions </li></ul></ul>
  • 12. Storms <ul><li>Thunderstorm includes </li></ul><ul><li>thunder and lightening </li></ul><ul><ul><li>Form when air rises in </li></ul></ul><ul><ul><li>a cumulonimbus cloud </li></ul></ul><ul><li>Tornado is an intense </li></ul><ul><li>windstorm in a rotating </li></ul><ul><li>column of air that touches </li></ul><ul><li>the ground </li></ul>
  • 13. Hurricane is a large tropical cyclone with at least 74 mph winds Hurricane Katrina – Aug. 2005
  • 14.  
  • 15.  
  • 16.  
  • 17.  
  • 18.  
  • 19.  
  • 20.  
  • 21.  
  • 22. Predicting weather 24-6
  • 23. Weather Forecasting <ul><li>Meteorologists are scientists who study weather </li></ul><ul><li>Doppler Radar uses Doppler effect to bounce waves off of precipitation in the atmosphere. </li></ul><ul><li>Weather stations use instruments to gather weather information. </li></ul><ul><li>Computers compile and analyze weather data to help predict forecasts </li></ul>
  • 24. Weather Maps <ul><li>They show predicted temps and indicate cloud cover, precipitation and fronts </li></ul><ul><li>Isotherm is a line on a map that connect points of equal temperatures </li></ul><ul><li>Isobar is </li></ul><ul><li>a line that </li></ul><ul><li>connects </li></ul><ul><li>points of </li></ul><ul><li>equal air </li></ul><ul><li>pressure </li></ul>                                                                                                                     

×