SUBJECT:        Monthly Raob Data Report of Manual Quality Control


The Raob Report for January, compiled from the Raob Recap statements in the
SDM logs, which does not necessarily include data that were rejected by
automated computer generated quality control, indicates the following:

(1)  Reports from 42 U.S. stations (Blocks 72 and 74) were cited at least
once; 21 were cited at least twice; and 10 were cited at least three times.
Of those, the following were cited more than three times or had two or more no
reports:

                    STATION__ DEL BAS COR XRP EFL SHO TOTAL
                    72694/SLE                  15       15
                    72293/NKX                  12       12
                    72476/GJT                  10       10
                    72426/ILN   1               6        7
                    72493/OAK                   7        6*
                    72649/MPX                   5        5
                    72210/TBW   3               1        4
                    72364/EPZ                   4        4

All equipment failures reported from the stations listed above were ground
equipment failures at various times throughout the January.  All manual
deletions noted above were due to super-adiabatic lapse rates. 

(2)  Reports from 39 stations in blocks 04, 70, 71, 76, 78 and 91 were cited
at least once; 23 were cited at least twice; and 12 were cited at least three
times.  Of those, the following were cited more than three times or had two or
more no reports:

                    STATION__ DEL BAS COR XRP EFL SHO TOTAL
                    78073/NAS                  36       36
                    70308/SNP                  10       10
                    91334/TKK                   8        8
                    91348/PNI   6               1   1    8
                    71082/YLT   4   2               1    6*
                    71926/YBK   4                        4
                    76405/LAP                   4        4

All equipment failures at stations NAS, SNP, TKK, and PNI were ground
equipment failures.  Station LAP reported flight equipment failures on the
10th and 14th through 16th.  A variety of deletions occurred at PNI, YLT,
and YBK.  At station PNI, all deletions were due to super-adiabatic lapse
rates.  At station YLT, heights and temperatures were removed due to low
heights and cold temperatures, and at station YBK, heights and temperatures
were removed due to high heights and warm temperatures. 

* The total differs from the sum of the itemized citations
  because of multiple citations in the same raob(s).


Citation Codes Key:
DEL  All or part of the raob was flagged for deletion.
BAS  A baseline hgt/station press error was corrected or purged.
COR  At least one correction other than baseline was made.
XRP  Station sent no report at all when one was required.
EFL  Equipment failure (codes 10142, 10144, 10158, etc.)
SHO  Raob flight was short; ie, to less than 400 mb.


This and related reports are available on the Web at . . .
http://www.nco.ncep.noaa.gov/pmb/qap/raobqc/