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Weather Phenomena

Weather Phenomena. By : Rodrigo Velarde Paloma Castellano Sebastián Velarde Juan Fernando Bazo. Stable. Unstable. Stable. Hoar Frost. Rime. Dew. Fog - Advection. Fog - Radiation. Hoar Frost. Looks like a blanket of ice crystals

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Weather Phenomena

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  1. WeatherPhenomena By: Rodrigo Velarde Paloma Castellano Sebastián Velarde Juan Fernando Bazo

  2. Stable Unstable

  3. Stable HoarFrost Rime Dew Fog - Advection Fog -Radiation

  4. HoarFrost • Looks like a blanket of ice crystals • Moisturedirectly condenses ontoanysurfacebelowfreezingpointtemperature • Developsunderclear, calmconditions

  5. Rime • Rime is a frostcausedbysupercooleddropletsin the air • Rime freezesontoanythingsolid • Coverseverysurface in a film of ice

  6. Dew • Leaveswaterdroplets coveringsurfaces in the morning • Occursoncoolnightswhen moisture in the air condenses butitisnotcoldenoughforittofreeze.

  7. Fog - Advection • Warmed air movesover a coldsurface • Air iscooled and condensationresults • Sea fogs are alwaysadvectionfog.

  8. Fog - Radiation • Cloudsthatformneartheground as result of condensation • Coldlandcoolsthe air aboveit, leadingtomoisture in the air condensing

  9. Unstable Rainfall - Frontal Hail Rainfall - Orographic Rainfall - Convectional

  10. Hail • Hail is a form of solid precipitation • Made of ice and measures between 5 and 200 millimeters in diameter • Hailstones generally fall at higher speeds as they grow in size

  11. Rainfall - Orographic • When warm air is forsed to rise due to a barrier like a mountain or a slope • As the air rises it cools until it reaches dew point, when clouds are formed • Rainfall occurs on mountain. Areas on the other side of the mountain often have dry climates (Rain shadow effect)

  12. Rainfall - Convectional • The land heats up the air above it • The air rises, it cools, until it reaches dew point temperature. Condensation of moisture creates cloud and rain follows • The hotter the day, the more likely there will be convectional rainfall

  13. Rainfall – Frontal orCyclonic • Occurs when warm and cold air masses meet • The less dense warm air risesabove the cold air • The rising air cools until dew point, condensation, precipitation • Regularly occurs at 60º North and South on the Tri Celular model

  14. TheEnd

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