Introduction to the Skew-T log (P) Diagram - 2nd edition (now shipping)

Preview the new Skew-T log (p) Program

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Thermodynamic diagrams are one of the absolute best power tools in the pilot's toolbox.  Specifically, the Skew-T log (p) diagram tells more about what a pilot can expect than any other single chart or diagram.  Icing potential, cloud bases, cloud tops, cloud layers, turbulence, non-convective low level wind shear, haze, instability, thunderstorm potential, precipitation type, cloud type, fog and visibility are just some of the weather elements that can be inferred by this diagram. 

The Skew-T diagram depicts the actual atmospheric temperature, dew point and wind (speed and direction) as a function of pressure (altitude) from NWS radiosonde (weather balloon) launch sites.  More importantly, the diagram can be generated from the output of a forecasting model (such as the Rapid Update Cycle) to depict a forecast of temperature, dew point and wind as a function of pressure for many airports throughout the U.S.  Having a forecast of these three basic elements can tell us a tremendous amount about the weather we might face.

As a result, this eLearning opportunity offers an introduction to the Skew-T diagram.  Here is a short list of the topics that will be addressed in this presentation:

1.   The origin and use of each and every line on the diagram
2.  Parcel theory and how it applies to atmospheric stability
3.  How to determine the bases of stratus and cumulus clouds at an airport including the Lifted Condensation Level (LCL)
4.  How to calculate the lifted index and convective available potential energy (CAPE)
5.  How to assess convective potential or thunderstorm potential.
6.  How to assess the freezing level to recognize the potential for freezing rain, freezing drizzle and supercooled liquid water
7.  How to determine dew point depression to assess cloud layers and the potential for fog
8.  How to recognize the potential for radiation fog and other temperature inversions
9.  How to assess the potential for non-convective low level wind shear associated with warm-air advection and overrunning
10.  How to  use the ESRL/GSD (formerly FSL) Forecast Sounding Java tool found at http://rucsoundings.noaa.gov
11.  Quizzes are included at the end of each training module to test your comprehension. 

Running length of the second edition of this CD is 2 hours and 15 minutes.

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Also consider our prepaid Private e-Learning Session hours. Pay only $600 and receive 12 session hours (or 20 hours for $995).  These prepaid hours can be used for any online e-Learning opportunity or Private e-Learning Session offered by Chesapeake Aviation Training. 

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Last modified: 03/26/09