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Re: 20011210: GEMPAK: mismatched BR and MIFG symbols?

Christian,

The WMO table 4677 explanation of code "45" is fog with the sky coverage
obscurred. That seems to contradict the BKN001 observation below.
There isn't necessariliy a 1 to 1 correlation between METAR weather
observations and Synoptic codes. I have asked NCEP for their input on how to
deal with BR and FG and the associated plotting codes that are returned.

Steve Chiswell
Unidata User Support

On Tue, 11 Dec 2001, Christian Page wrote:

>
> Hello again,
>
> There is still a problem. The FG symbol is plotted as the BR symbol.
> Example, today, 14Z:
>
> EBLG 111350Z 34002KT 0300 R23L/0350N FG BKN001 02/02 Q1036 NOSIG
>    EBLG    011211/1400     10.00
>
> So FG should have been plotted as 45 if I recall well, not 10. 10 is for BR, 
> not
> FG.
>
> So:
>
> MIFG and BR are plotted correctly.
> FG is plotted as BR, which is wrong.
>
> Thanks again,
>
> Christian Page
> UQAM
>
> On Mon, 10 Dec 2001, Steve Chiswell wrote:
>
> >
> > Christian,
> >
> > It appears that there needs to be an update to the ptwnmt.f routine.
> >
> > Attatched is a copy that will change the encoding of MIFG to GF (12)
> > and BR to F (10).
> >
> >
> > Place the attatched ptwnmt.f file in $GEMPAK/source/gemlib/pt. Then
> > update the gemlib with:
> >
> > cd $GEMPAK/source/gemlib/pt
> > make clean
> > make all
> > make clean
> >
> > Then relink the dcmetr decoder so that it recognizes this change:
> >
> > cd $GEMPAK/source/programs/dc/dcmetr
> > make clean
> > make all
> > make install make clean
> >
> > Thanks,
> >
> > Steve Chiswell
> > Unidata User Support
> >
> >
> > On Mon, 10 Dec 2001, Unidata Support wrote:
> >
> > >
> > > ------- Forwarded Message
> > >
> > > >To: <address@hidden>
> > > >From: Christian Page <address@hidden>
> > > >Subject: GEMPAK: mismatched BR and MIFG symbols?
> > > >Organization: UCAR/Unidata
> > > >Keywords: 200112101021.fBAALHN03989
> > >
> > >
> > > Hi,
> > >
> > > I just noticed today that when using sfmap to plot METAR data, I get:
> > > MIFG -> symbol 10
> > > BR -> symbol 12
> > >
> > > Shouldn't it be the reverse?
> > >
> > > Christian Page
> > > UQAM
> > >
> > >
> > >
> > > ------- End of Forwarded Message
> > >
> >
>