[gradsusr] Incorrect Winds from NCEP NAM file

[Wesley Ebisuzaki]

Hi,

Good news and bad news.   The good news is that the grib files are OK.
The bad news is that it is my problem.  The problem appears to be in the
control file generated by g2ctl. 

pdef 23 23 lccr 28.350752 270.733825 1 1 50.000000 50.000000 253.000000 
32463.000000 32463.000000
xdef 27 linear -89.192830 0.335339824316424

I suspect the lon(x=1) value (-89.1928) has to be within 180 degrees of 
the orientation
longitude (253).

Changing LCCR to LCC is not a fix.  Adding 360 to "-89.192830" in the 
xdef line seems to work.
Expect a new g2ctl next week.

       Wesley



Donald Van Dyke wrote:
> Hi Everyone,
>
> Thanks very much for your comments.  Changing the lccr to lcc does seem 
> to fix the problem for now, and I can easily work around that in my 
> scripts until the issue with the grib files is worked out.  Wesley, I 
> got these files from the real time NOMADS site at 
> http://nomads.ncep.noaa.gov/ using the grib filter for the "NAM North 
> America" option.  Thanks again for your help.
>
> -Don
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