AEROGRAPHER'S MATE 3 & 2 



200- 



200- 



/ 



?/ / / / 



/ 



/ &/ / / / 



/ & ■ / / / / 



/ .*v / / / 



/ / / 



/ *y / 



/ 



/ 



/ 



/ 



/ 



/ / / 

 / / 

 / / / 



/ / 



/ 



/ 



/ 



/ 



' i >' 



? / 



/ 7 / / / 7 / 7 / / / 1 



/ / / / / / / / i i , i i i i 



y n / / ./ / / / i i i i 1 1 i 



: L l L L L L L L I I I I I 



/ 



209.412 



Figure 11-34.— Example of saturation mixing-ratio linos on the SKEW-T Diagram. 



6. OTHER DATA-Miscellaneous data, such as 

 layer thickness curve and tropopause data, as 

 prescribed by local command or the forecaster, 

 may also be plotted on the chart. 



COMPUTATIONS ON THE DIAGRAM 



Computations on the SKEW-T Diagram that 

 you make will serve as the primary tools used 

 by the forecaster in preparing the daily fore- 

 cast. It can be used to analyze an air mass 



or a front, and it may also be used to fore- 

 cast maximum and minimum temperatures, thun- 

 derstorms, fog, icing, and a host of other 

 parameters. 



Some of the parameters that can be de- 

 termined by using the SKEW-T Diagram and the 

 procedures for computing them are as follows: 



1. LIFTING CONDENSATION LEVEL (LCL)- 

 This is the height at which a parcel of air 



236 



