---------------------------------------------------------------------------------
              Database                                    FIXED LENGTH SECTION
              --------
FSL           'FSL' or 'AWIPS'
---------------------------------------------------------------------------------
              Time Window (use 0,0,0 for default)         FIXED LENGTH SECTION
              -----------
0             Number of minutes relative to nominal time at which to start window
0             Number of minutes relative to nominal time at which to end window
0             0 - return all records within the file containing nominal time
              1 - return one record per fixed station, closest to nominal time
              2 - return one record per fixed station, closest to start of window
              3 - return one record per fixed station, closest to end of window
              4 - return all records within *window*
---------------------------------------------------------------------------------
              Providers (see doc/sfc_providers.txt)       VARIABLE LENGTH SECTION
              ---------
0             0 - all providers 
              N - list of N provider names follow this line 
---------------------------------------------------------------------------------
              Domain Filter                               FIXED LENGTH SECTION
              -------------
0             0 - don't filter
              1 - return stations within latitude/longitude corners
              2 - return stations within specified Polar Stereographic grid
              3 - return stations within specified Lambert Conformal Conic grid

              Latitude/Longitude Corners (lines skipped if not Domain Filter 1)
              --------------------------
37.0          SW corner latitude (north)   
-109.0        SW corner longitude (east)
41.0          NE corner latitude (north)
-102.0        NE corner longitude (east)

              Polar Stereo Specification (lines skipped if not Domain Filter 2)
              --------------------------
190500.0      Grid box size (meters)
7.838         Latitude (north) of 1st grid point (lower left = SW)
-141.028      Longitude (east) of 1st grid point (lower left = SW)
-95.0         Orientation longitude (east)                 
33.0          I-coordinate of pole
45.0          J-coordinate of pole
60.0          Lat (north) at which X-Y scale is true
65            Number of grid points in X-direction (I dimension)
43            Number of grid points in Y-direction (J dimension)

              Lambert Conformal Conic Specification (lines skipped if not Domain Filter 3)
              -------------------------------------
40635.25      Grid box size (meters)
12.19         Latitude (north) of 1st grid point (lower left = SW)
-133.459      Longitude (east) of 1st grid point (lower left = SW)
-95.0         Orientation longitude (east)
25.0          Latitude (north) of first Lambert Conformal tangent
25.0          Latitude (north) of second Lambert Conformal tangent
185           Number of grid points in X-direction (I dimension)
129           Number of grid points in Y-direction (J dimension)
---------------------------------------------------------------------------------
              QC Filter                                   FIXED LENGTH SECTION    
              ---------
0              0 - none
               1 - coarse
               2 - screened
               3 - verified
              99 - highest possible
---------------------------------------------------------------------------------
	      Time Selection                              FIXED LENGTH SECTION
              --------------
1             0 - Julian format (YYJJJHHMM)
              1 - Month/Day format (YYYYMMDD_HHMM)
0             0 - Use the nominal time line below
              1 - Use the current time as the nominal time
20090903_1200 Nominal time (in selected format)
---------------------------------------------------------------------------------
	      Station Selection                           FIXED LENGTH SECTION
              -----------------
0             0 - Get all stations
              1 - Get only the station whose name is on the next line
KADC          Single station name
---------------------------------------------------------------------------------
	      Output Options                              FIXED LENGTH SECTION
              --------------
0             0 - Lat/lon with 2 digits after decimal place 
              1 - Lat with 5 digits after decimal place, lon with 4 digits

0             0 - Text output with headers (original format)
              1 - XML output format  
              2 - Comma-separated-variable (CSV) text output without QC info
              3 - CSV text output with QC data descriptors
              4 - CSV text output with full QC information

0             0 - When using CSV, use -99999.000000 for missing fields
              1 - When using CSV, use blanks for missing fields (Excel-friendly)
---------------------------------------------------------------------------------
              Variables (1 per line, until end of file)   VARIABLE LENGTH SECTION
              --------- (see doc/sfc_variable_list.txt)
TD     
RH     
Q      
DPD    
AH
ALTSE  
PT3    
PT3CHR 
SLP    
P      
T      
TV     
DD     
FF     
U      
V      
VIS    
WMOID  
PCPTOTL
PCP5M
PCP15M
PCP1H  
PCP24H 
PCPLM  
PCPUTCM
PCPRATE
PCPINT 
PCPTYPE
SKYCVLB   
FUELM  
FUELT  
SOILM  
SOILMP
SOILT  
DDGUST 
FFGUST 
SST
FSRD15M
FSRD1H 
FSRD24H
DSRD15M
DSRD1H 
DSRD24H
PWV    
GPSTSD 
GPSDSD 
GPSWSD 
GPSMWT 
GPSFE  
GPSWDMF
MLLW
NOBSSC
RDT1 
RDT2 
RDT3 
RDT4 
RDLFT1 
RDLFT2 
RDLFT3 
RDLFT4 
RDLCF1
RDLCF2
RDLCF3
RDLCF4
RDLCP1
RDLCP2
RDLCP3
RDLCP4
RDLIP1
RDLIP2
RDLIP3
RDLIP4
RDLDP1
RDLDP2
RDLDP3
RDLDP4
RDSTA1 
RDSTA2 
RDSTA3 
RDSTA4 
RDSUBT1
RDSUBT2
RDSUBT3
RDSUBT4
SKYCOV    
STALOC
SUBPVDR
