NCEP UPPER AIR RECEIPT MESSAGE FOR 20090113 18 UTC:
 TIME OF EXECUTION  Tue Jan 13 19:45:00 UTC 2009
 This webpage is updated every 30 min from 1:45 to 3:15 after 00 06 12 and 18 UTC.
 
 20674      21824      21946      23330 AB   23955 AB   24125 AB  
 24266 AB   24343 AB   24641      24688 AB   24726      24944 AB  
 24959 AB   25123 AB   25400 AB   25428 AB   25913 AB   28275     
 28698 AB   29231      29572      29612      29634      29839     
 29862      30054      30554      30758      31004 A    31369 A   
 31538 A    31736      31770 A    31873      31977 A    32389     
 32540      

    
Group A (TTAA); Group B (TTBB [and PPBB]); Group C (TTCC, TTDD, [and PPDD]).
[Some stations report no PPBB/PPDD but report sig wind data in TTBB/TTDD.]
THKS means all required parts were in at this time with sufficient data. THANKS!
A capital letter means all required parts had data at this time for that group.
A small letter means reports received but some part had no data for the group.
A space means one or more required parts were missing from the group.
This message measures NCEP data receipt and reflects total system throughput.
Please retransmit missing reports, but DO NOT MAKE NUMEROUS RETRANSMISSIONS.
Check SDM and Gateway administrative messages for news on any comms problems.
Reference the "Thanks" Criteria for further details.