PRESENTER: Let's go over some Skew-T basics just to make sure everyone's on the same page. What is a Skew-T provided by UCAR. Lines will be the same as those on Skew-Ts produced by other organizations. But the colors may be different. The horizontal blue lines are pressure levels in millibar [INAUDIBLE]. The temperature lines are tilted 45 degrees to the right and are in degrees C. Dry adiabats, which indicate constant potential temperature, are the red lines, curving upward to the left. And they are marked in degrees Kelvin.

The moist adiabats, which indicate the temperature change of the saturated air parcel, are the green dot dash lines, curving to the left and eventually become parallel to the dry adiabats. They are marked in degrees C. The saturated water vapor mixing ratio is plotted with golden dash lines and has units of grams per kilogramme of dry air.

Of course, this is just a water vapor mixing ratio, it's the temperature is higher than the dew point. Off to the right is the wind speed and direction at different altitudes. Plotted on this diagram are the temperature, the red solid line, and the dew point, the green solid line. Both taken from a radio [INAUDIBLE].