Caution must be taken when using the radiosonde data. In some cases, data are
missing and flagged as "999.0". These are due to the loss of the GPS signal
during flight. These cases are:

08/20/2010 06Z, 09/08/2010 18Z, 09/17/2010 06Z

In other cases, the sensors might have malfunctioned or merely died. This 
concerns mainly the moisture fields. These cases are:

08/14/2010 19Z, 09/02/2010 18Z