Meteorology and weather Meteorology is the study of

Meteorology and weather

Meteorology Ø- is the study of weather and the atmosphere. Ø- the study of the atmosphere, processes that cause weather, and the life cycle of weather systems

Weather - is the state of the atmosphere, at precise time and given position. It is given by observed atmospheric phenomena such as temperature, moisture, wind, barometric pressure, clouds

Meteorological phenomena including § § § turbulence wind precipitation + icing clouds visibility pressure

Turbulence - happens when the smooth flow of air is disturbed by something in its part of the ground or by rising or descending air - mechanical, thermic, CAT, wake turbulence

Wind - a pilot needs to know two thing about the wind Ø its direction Ø its sped - the words use to describe how strong the wind is: Ø Ø Ø calm breese strong gale storm

Precipitation Ø Ø Ø intensity, time, form amount light, moderate, heavy continuous, intermittent rain, shower, drizzle, thunderstorm, sleet snow, freezing rain or drizzle, blizard, hail and pellets, snow flurry icing

Clouds � Low level - stratus � Medium level – alto � Hight level – cirrus � CB Amount of clouds Ø no clouds Ø 1 -4 octas Ø 5 -7 octas Ø 8 octas

Visibility Ø meteorolical, vertical, flight visibility, RVR Ø unlimited, excelent, haze, mist, fog Ø phenomene reducing visibility

Colour code § § colour system is used to discribe weather at airfield BLU, WHT, GRN, YLO, AMB, RED, BLACK

Pressure QNH, QFE, Standard atmospheric pressure

Intensity of phanomena Ø Ø Ø Precipitation – light - moderate - heavy Wind shear - moderate - strong Other phenomena – light - moderate - severe

Reports § METAR – actual report § TAF – weather forecast § SPECI – extra report § SNOWTAM

Source of meteorological information Ø Ø meteorological briefing radar screen ledis screen pilot’s and ATCo’s report

Thank you for your attantion.