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TPC Probability plotting
http://www.weathergraphics.com/forum/viewtopic.php?f=7&t=1420
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Author:  Craig4Wx [ Wed Aug 13, 2008 12:57 am ]
Post subject:  TPC Probability plotting

Hi Jeff,

I'm trying to decode some of the NHC/TPC grib files, specifically the tpcprblty files located at ftp://ftp.tpc.ncep.noaa.gov/wsp/

I've inserted parmeter 191 HURR in gridparm.dat but the probs plot as flat lines in PCGRIDDS32 ver 3.4 09/2007

Any ideas?

Thanks,

Craig

The NGB2PCG32 output is as follows:

NGRB2PCG32 PCGRIDDS32 VERSION 3.8 01/07/2008

OUTPUT DATA DIRECTORY: c:\PCGRIDDS32\GRIDDATA\
FILE: tpcprblty.2008081218.grib2
---NEW GRIB DATA FILE OPENED

===== BEGIN READ ===== IGB100( 1 & 2) COPIED TO 1 & 2
===== BEGIN NEW GRIB EDITION 2 RECORD =====
REC#,SIZE = 1 77418
NBYTES,IRDRC7,IRDREC= 77418 774 774
IRDST/IRDEND/IGRBZZ= 3 773 3
DISCIPLINE = 0
******* Simple Unpacking
KENS = 1 5 0 0 255
KPDS= 7 30 255 128 191 105 10 8 8 12 18 0 1 0 0 4 0 2 2
ACCUM 0 0 4 0 HURR HUR0
INPUT YR/MO/DY/HR/FHR/LVL=2008/ 8/12/18/ 0/ 10M - PARAM=191 (HUR0 10M)
GRID DEFINITIONS OBTAINED FROM GRIB GDS SECTION
... OUTPUT FILE= c:\PCGRIDDS32\GRIDDATA\AUG120818.MRFEWHL00 255
REQUESTED GRID BEING PROCESSED
--- ADDING GRID-> 2 HUR0 10M 2008 8 12 18 0 2
A,NX,NY= 0.0000000E+00 519 119
GRN,GRX,RANGE= -100.0007 100.0005 1.123602
--- ADDING GRID-> 3 MSG00000 2008 8 12 18 0 18
A,NX,NY= 1.000000 519 119
GRN,GRX,RANGE= -1.0000000E-25 9.1084400E-44 5.6179776E-28
--- ADDING GRID-> 4 MSG10000 2008 8 12 18 0 34
A,NX,NY= 0.0000000E+00 519 119
GRN,GRX,RANGE= -1.0000000E-25 9.1084400E-44 5.6179776E-28
MAP PROJECTION = LTLN
GRID DESCRIPTION SECTION = 0 519 119
1000 100000 128 60000 359000 500
500 64 0 0 0 0
0 0 0 0 255 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
255
NPTS = 61761
GRID PROJECTION TYPE = LTLN
--- ADDING GRID-> 5 ALAT0000 2008 8 12 18 0 50
A,NX,NY= 60.00000 519 119
GRN,GRX,RANGE= -0.5000058 9.1084400E-44 2.8090212E-03
--- ADDING GRID-> 6 ALON0000 2008 8 12 18 0 66
A,NX,NY= -100.0000 519 119
GRN,GRX,RANGE= -0.5000058 359.5020 2.022483
--- ADDING GRID-> 7 DMAP0000 2008 8 12 18 0 82
A,NX,NY= 27777.77 519 119
GRN,GRX,RANGE= 1.3592595E-43 418.7989 2.352803
--- ADDING GRID-> 8 FFFF0000 2008 8 12 18 0 98
A,NX,NY= 1.2595821E-04 519 119
GRN,GRX,RANGE= -1.2489728E-06 9.1084400E-44 7.0167010E-09
--- ADDING GRID-> 9 EDIR0000 2008 8 12 18 0 114
A,NX,NY= 0.0000000E+00 519 119
GRN,GRX,RANGE= -1.0000000E-25 9.1084400E-44 5.6179776E-28
--- ADDING GRID-> 10 GRDX0000 2008 8 12 18 0 130
A,NX,NY= 1.000000 519 119
GRN,GRX,RANGE= 1.3592595E-43 1.000008 5.6180209E-03
--- ADDING GRID-> 11 GRDY0000 2008 8 12 18 0 146
A,NX,NY= 1.000000 519 119
GRN,GRX,RANGE= 1.3592595E-43 1.000008 5.6180209E-03

===== BEGIN READ ===== IGB100( 774 & 775) COPIED TO 1 & 2
READING NEW GRIB RECORD = 776
===== BEGIN NEW GRIB EDITION 2 RECORD =====
REC#,SIZE = 2 216
NBYTES,IRDRC7,IRDREC= 216 2 776
IRDST/IRDEND/IGRBZZ= 777 775 3
DISCIPLINE = 0
UNABLE TO PROCESS GRID - NO GDS

===== BEGIN READ ===== IGB100( 2 & 3) COPIED TO 1 & 2
READING NEW GRIB RECORD = 778
===== BEGIN NEW GRIB EDITION 2 RECORD =====
REC#,SIZE = 3 216
NBYTES,IRDRC7,IRDREC= 216 2 778
IRDST/IRDEND/IGRBZZ= 779 777 3
DISCIPLINE = 0
UNABLE TO PROCESS GRID - NO GDS

===== BEGIN READ ===== IGB100( 2 & 3) COPIED TO 1 & 2
READING NEW GRIB RECORD = 780
===== BEGIN NEW GRIB EDITION 2 RECORD =====
REC#,SIZE = 4 77418
NBYTES,IRDRC7,IRDREC= 77418 774 1552
IRDST/IRDEND/IGRBZZ= 781 1551 3
DISCIPLINE = 0
******* Simple Unpacking
KENS = 1 5 0 0 255
KPDS= 7 30 255 128 191 105 10 8 8 12 18 0 1 0 0 4 0 2 2
ACCUM 0 0 4 0 HURR HUR0
INPUT YR/MO/DY/HR/FHR/LVL=2008/ 8/12/18/ 0/ 10M - PARAM=191 (HUR0 10M)
GRID DEFINITIONS OBTAINED FROM GRIB GDS SECTION
... OUTPUT FILE= c:\PCGRIDDS32\GRIDDATA\AUG120818.MRFEWHL00 255
GRID ALREADY IN OUTPUT FILE - NOT PROCESSED

===== BEGIN READ ===== IGB100( 774 & 775) COPIED TO 1 & 2
READING NEW GRIB RECORD = 1554
===== BEGIN NEW GRIB EDITION 2 RECORD =====
REC#,SIZE = 5 216
NBYTES,IRDRC7,IRDREC= 216 2 1554
IRDST/IRDEND/IGRBZZ= 1555 1553 3
DISCIPLINE = 0
UNABLE TO PROCESS GRID - NO GDS

===== BEGIN READ ===== IGB100( 2 & 3) COPIED TO 1 & 2
READING NEW GRIB RECORD = 1556
===== BEGIN NEW GRIB EDITION 2 RECORD =====
REC#,SIZE = 6 216
NBYTES,IRDRC7,IRDREC= 216 3 1557
IRDST/IRDEND/IGRBZZ= 1557 1556 3
DISCIPLINE = 0
UNABLE TO PROCESS GRID - NO GDS

===== BEGIN READ ===== IGB100( 3 & 4) COPIED TO 1 & 2
READING NEW GRIB RECORD = 1559
===== BEGIN NEW GRIB EDITION 2 RECORD =====
REC#,SIZE = 7 77418
NBYTES,IRDRC7,IRDREC= 77418 774 2331
IRDST/IRDEND/IGRBZZ= 1560 2330 3
DISCIPLINE = 0
******* Simple Unpacking
KENS = 1 5 0 0 255
KPDS= 7 30 255 128 191 105 10 8 8 12 18 0 1 0 6 4 0 2 2
ACCUM 0 6 4 6 HURR HUR6
INPUT YR/MO/DY/HR/FHR/LVL=2008/ 8/12/18/ 6/ 10M - PARAM=191 (HUR6 10M)
GRID DEFINITIONS OBTAINED FROM GRIB GDS SECTION
... OUTPUT FILE= c:\PCGRIDDS32\GRIDDATA\AUG120818.MRFEWHL00 255
REQUESTED GRID BEING PROCESSED
--- ADDING GRID-> 12 HUR6 10M 2008 8 12 18 6 162
A,NX,NY= 0.0000000E+00 519 119
GRN,GRX,RANGE= -100.0007 100.0005 1.123602

Author:  jkrob [ Thu Aug 21, 2008 10:02 am ]
Post subject: 

Hey Craig,

Sorry for the slow reply - Thanks for the info. I did not even know these files were around. I'll look into them & see what's up.

Jeff Krob
WINGRIDDS System Developer

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