[wxqc] FW: Wind Question

[Aledo Weather]

Hi Dave,
It's Keith Clark, CW2758. Sorry about that.....
I try and keep a close watch on KMLI (Moline, IL.), KDVN (Davenport, Ia),
KMUT (Muscatine, Ia.), and KGBG Galesburg, Il,) as I'm just about centered
25 Miles from each of them, Its difficult to get all their measurements at
the same time using Wunderground so I try and check them through Noaa.gov,
but there is still from time to time some good variations.

-----Original Message-----
From: wxqc-bounces at lists.gladstonefamily.net
[mailto:wxqc-bounces at lists.gladstonefamily.net] On Behalf Of Dave Helms
Sent: Monday, June 11, 2007 8:26 PM
To: Discussion of weather data quality issues
Subject: Re: [wxqc] FW: Wind Question

Hi,

What is your CWOP ID??  Tough to say regarding the wind performance.  
You can watch the local ASOS/AWOS and see how your wind observations 
compare with their's which presumably are siting on an open runway.  
Necessarily, the difference between your anemometer elevation above 
ground level (20 ft) and the desired elevation of 33 ft (10 meters) will 
reduce your winds some, but the real problem for most folks is blockage 
from trees, etc, at and above their anemometer height.

Great that you have made the siting and shielding changes for your 
temp/RH sensors.  We don't encourage people "tweaking" their 
observations for measurements (except for pressure), could be you may a 
correction to a bias that is actual weather for your local climate.  
Russ has a large collection of shielding information at this link:  
http://www.wxqa.com/shields.html

Regards,

Dave
CW0351

Aledo Weather wrote:

>  
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> ------------------------------------------------------------------------
>
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> *To:* 'wxqc at lists.gladstonefamily.net'
> *Subject:* Wind Question
>
>  
>
> I have my anemmeter mounted on a pole 20 feet high and 35 feet from 
> the nearest trees. Is this still too close to avoid the turbulent zone 
> around and at the top of
> these obstructions that will skew your readings?
>
>  
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> I just recently made some changes in my weather station location, 
> moving it out away from the house and installing the temp/hygrometer 
> sensors in a radiation shield I purchased from Ambient Weather. This 
> made a big difference in the reliability of the reading which I hope 
> to tweak a little better. Getting it out in the open is definitely the 
> way to go. Does anyone have a suggestion on how to do this and still 
> provide them some protection?
>
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