            I01     READINP    PROCESSING STAGE 2
 METPREP    W80     PBL_TEST   MISMATCH OF UPPERAIR DATA PERIOD        0-       0 AND METPREP DATA PERIOD 20160101-20161231
 UPPERAIR   I20     UP_PROC    UPPER AIR EXTRACTION BEGIN 20230912 20:31:23
 UPPERAIR   E31     READ_EXT   ERROR READING STATION INFORMATION; LINE *% UPPERAIR
 UPPERAIR   I23     UP_PROC    NUMBER OF EXTRACTED SOUNDINGS:     0
 UPPERAIR   I24     UP_PROC    NUMBER OF UNIQUE VALID SOUNDINGS:     0
 UPPERAIR   I25     UP_PROC    NUMBER OF DUPLICATE SOUNDINGS:     0
 UPPERAIR   I26     UP_PROC    NUMBER OF SKIPPED SOUNDINGS:     0
 UPPERAIR   I20     UP_PROC    UPPER AIR EXTRACTION END 20230912 20:31:23
