Re: [weewx-user] outTemp, windchill & heatindex all registering the same temp.

[Brad Tucker]

Thanks for the info Tom. This would explain it then as the Acurite 5n1 does 
not record its own windchill or heat index. We are over 80 today here in 
socal but only 12% humidity so I can't test it out...

Thanks Again,
Brad

On Thursday, November 3, 2016 at 12:07:53 PM UTC-7, Tom Keffer wrote:
>
> If you asked weewx to calculate windchill and heatindex 
> , they will differ 
> from outTemp only if certain criteria are met:
>
> windchill: temperature must be below 50F, and wind speed above 3mph (ref: 
> http://www.nws.noaa.gov/om/winter/windchill.shtml)
>
> heatindex: temperature must be above 80F, and relative humidity over 40% 
> (ref: http://www.wpc.ncep.noaa.gov/html/heatindex_equation.shtml)
>
> If you asked weewx to use hardware values, then weewx uses whatever value 
> is emitted from your Acurite.
>
> -tk
>
>
> On Thu, Nov 3, 2016 at 11:59 AM, Brad Tucker  > wrote:
>
>> outTemp, windchill & heatindex are all registering the same temp. on my 
>> system. Anyone have any ideas on where to look? When I look at the 
>> myAcurite web display they are al different but for some reason whew is 
>> reporting them all the same. I thought maybe the value where just drawing 
>> on top of themselves so I decided to look in the SQLite database and sure 
>> enough they are all exactly the same values all the time with no 
>> differences.
>>
>> Thanks!
>> Brad
>>
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>
>

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Re: [weewx-user] outTemp, windchill & heatindex all registering the same temp.

[Thomas Keffer]

If you asked weewx to calculate windchill and heatindex
, they will differ
from outTemp only if certain criteria are met:

windchill: temperature must be below 50F, and wind speed above 3mph (ref:
http://www.nws.noaa.gov/om/winter/windchill.shtml)

heatindex: temperature must be above 80F, and relative humidity over 40%
(ref: http://www.wpc.ncep.noaa.gov/html/heatindex_equation.shtml)

If you asked weewx to use hardware values, then weewx uses whatever value
is emitted from your Acurite.

-tk


On Thu, Nov 3, 2016 at 11:59 AM, Brad Tucker  wrote:

> outTemp, windchill & heatindex are all registering the same temp. on my
> system. Anyone have any ideas on where to look? When I look at the
> myAcurite web display they are al different but for some reason whew is
> reporting them all the same. I thought maybe the value where just drawing
> on top of themselves so I decided to look in the SQLite database and sure
> enough they are all exactly the same values all the time with no
> differences.
>
> Thanks!
> Brad
>
> --
> You received this message because you are subscribed to the Google Groups
> "weewx-user" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to weewx-user+unsubscr...@googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.
>

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[weewx-user] outTemp, windchill & heatindex all registering the same temp.

[Brad Tucker]

outTemp, windchill & heatindex are all registering the same temp. on my 
system. Anyone have any ideas on where to look? When I look at the 
myAcurite web display they are al different but for some reason whew is 
reporting them all the same. I thought maybe the value where just drawing 
on top of themselves so I decided to look in the SQLite database and sure 
enough they are all exactly the same values all the time with no 
differences.

Thanks!
Brad

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