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<br />9<'E..T/~-P lAUD 12X111lC 121:mnoo3 ~J1
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<br />Figure 2.4 Upper-air soundin2 (taken b)-' a weather balloon) at Grand Junclion,
<br />CO at 0500 I\1ST on the mornin~ of Decemher 30~ 2003. The red solid line represents
<br />temperature. and the green solid line is the dcwpoint. Blue lines are pressure levels in
<br />millibars (horizontal) and temperature in degrees C (diagonal). Red and green dotted
<br />lines represent nomlal temperature lapse rates (i.e., change with height). Wind barbs on
<br />the right show wind speed and direction at various levels. This panicular sounding
<br />shows a temperature of about -10 degrees C al the 700-mb level, which is a good
<br />temperature for cloud seeding. However, the lower atmosphere is rather stable in this
<br />sounding, making cloud seeding practical only at select locations.
<br />
<br />9
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