[wxqc] How to correct Baro reading to get MADIS thumbs up?

[Dave Helms]

Hi Stu,

Yah, there are about 6,000 WeatherBug (AWS) stations in the MADIS 
database which are not visible on the MADIS Java page or on Phillip's QC 
Summary page, but are used in the calculation of the MADIS QCMS 
statistics. Could be one of these stations is close to your station, and 
used as part of your station's area pressure analysis. Being in a 
valley, you micro-climate will certainly differ (for min temps 
especially) than other stations that do not have the drainage winds your 
station experiences.

Dave
CW0351

Stu Phillips wrote:

> After several weeks of watching my quality stats at:
>
> http://weather.gladstonefamily.net/site/AS325
>
> I’m trying to figure out the correction for the barometer. MADIS shows 
> me an average of 0.5 mb high but when I look at the graphs, the 
> daytime readings all seem spot on and generally agree with the METAR 
> reports from my nearest airport (KPAO). I tweaked the correction on my 
> Barometer down 0.01” Hg about a week ago but it seems to have made 
> little (no) difference.
>
> As the automated analyzer surmized, this location is indeed in a 
> valley (Canada de Raymundo) and it does get noticeably colder here – 
> taking the temperature measurements a mile away often shows 5-7 
> degrees difference year round.
>
> Can anyone offer some suggestions for me?
>
> Thanks!
>
> Stu
>
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