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Weather PowerPoint Presentation

Weather

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Weather

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Presentation Transcript

  1. Weather

  2. What is weather? • Set of all phenomena occurring at a given time in the atmosphere. • example: wind, atmospheric pressure, humidity

  3. Climate • Sum of weather conditions for a region over a long period of time.

  4. Front • a boundary between two air masses of different density, moisture content, or temperature.

  5. Stationary front • Front does not move or barely moves. Has similar characteristics to warm fronts.

  6. Cold Front • Replace warm air with cold air. Associated with severe weather

  7. Warm Front • Warm air replaces cold air. Long light showers typically, some severe weather.

  8. Occluded front • Mixing of air. Cold fronts move faster than warm fronts. Can have characteristics of either cold or warm fronts

  9. Cold Fronts

  10. Cold Front

  11. Warm Front

  12. Station Model

  13. Cloud Cover Symbols

  14. Wind Speed Symbols

  15. Weather Isolines • Isotherms – Lines of equal temperature • Isodrosotherms – Lines of equal dew point temperature.

  16. Surface map 70 degree isotherm

  17. Rain Shadow Effect

  18. Heat Index Chart

  19. Wind Chill Index

  20. Wall Cloud

  21. Supercell

  22. Useful Weather Links • http://www.nssl.noaa.gov/ • http://www.theweatherchannelkids.com/ • http://www.wunderground.com/ • http://www.kjrh.com/weather/default.aspx • http://www.mesonet.org/ • http://radar.srh.noaa.gov/fire/