[wxqc] Dew Point errors

[Dave Helms]

Hi Jim,

Your dew point is about 3 F degrees too low (measurements too dry) as 
compared to the analysis (e.g. your adjacent stations).  See here in 
comparison to the Winchester Airport (KOKV) observation:
http://weather.gladstonefamily.net/qchart/C3977?date=20050806&addnl=KOKV&Add+to+charts=Add+to+charts&.cgifields=addnl

The message says that you need to <add> 7 F degrees to your dew point an 
that day to bring it up to the humidity of the nearby stations.  
However, the 7F degree was just a single day's sample.  I suspect your 
are running 3-4F too dry most of the time.


Hope this helps,

Dave
CW0351

P.S.  You still need to update your position in your VWSAPRS software so 
FINDU plots your station in "downtown" Middletown, as per our previous 
email.

Jim Wahler wrote:

> *I recently began sending data from my WM918 to APRS, after about 15 
> months of uploading to Wunderground.  Yesterday I received a message 
> from wxqc listing a series of 'Observerd Errors' in the Dew Point data 
> to APRS/CWOP.  It indicated that my readings were about 7F too high.  
> On checking the graphs I found that I was actually below the analysis, 
> as well as the other stations near me.  I thought that I needed to 
> adjust my Dew Point, but now I'm confused about how, which direction, 
> and IF I really need to do anything at all.*
> ** 
> *Thanks for your help & suggestions.*
> *Jim - C3977*
>
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