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The 96% I hit was only a few days ago, without the correction, I was at 98% with the temp at 59.9F, dew, 59.3. The dew remained there for about 11 hours, then seemed to respond fine to the drying air later the next morning.
What Weather Station Should I Buy? / Re: Cell weather stations
« Last post by METARMan on Today at 04:35:34 PM »
I'd like to have the data available to the public in near real time.  WUnderground is fine but another cloud service would be nice as well.
This has been my exact observation in the 10 months my 31 has been in use. I used my Belford 566 as my reference. Hopefully Davis will find a solution to the problem. I would be willing to pay more for better accuracy.
What Weather Station Should I Buy? / Re: Cell weather stations
« Last post by johnd on Today at 04:29:22 PM »
Just two quick comments:

Don't forget the Davis Enviromonitor systems - these are intended more for agricultural applications with many sensors, but there's no reason not to use simply an EM gateway plus a cabled VP2 ISS. The cost is not very different to a Davis Connect + wireless ISS and there's the small advantage of not needing to worry about the ISS battery.

And, as long as it's a cell system, I wouldn't worry too much about whether it's 3G or 4G (or even 2G) - the data rate is pretty low for weather applications and so there's no practical  benefit to 4G - it's a completely different application to smartphones.
Aviation Weather / Re: Official weather and METAR
« Last post by PaulMy on Today at 04:20:43 PM »
I can't exactly recall, but as we were talking and he was answering my many questions he mentioned he needed to go and do an observation and asked if I wanted to come along.  There were many different types of cloud conditions around us and he observed some snow clouds coming from the north west - Lake Huron and also changing clouds from the south east, Lake Erie.  I thought maybe 8 or 9 oktas but have nil knowledge on that (only what I have read in the METAR descriptions) but he noted 2 layers of clouds and some small pockets of blue sky so he came up with the conditions - but I pushed the button ;) .

Enjoyed it!
What Weather Station Should I Buy? / Re: Cell weather stations
« Last post by havtrail on Today at 04:18:51 PM »
My township has an Onset Computer HOBO station, which I have adopted and revived as a volunteer. It's a rugged system, designed for remote operation using solar power and cellular communication (3G). It's toward the higher end, but I don't know how it compares to a Dynacon. While the logging, transmitting and data integrity functions have worked flawlessly for us, I am not sure I'd recommend it, for the following reasons:

1. Requires a $150/year subscription to the Onset host site at Someone has to budget for that bill every year.
2. There is no way to "calibrate" the sensor readings using numerical offsets to the raw data, as some less-expensive personal weather station systems can. Sensor replacement is the only option, and that's an expensive option.
3. How do you want to make your weather info available to the village and its inhabitants? With a HOBO system, there's your station's own HOBOlink webpage, and an option to feed data to the Weather Underground site. No other options, like CWOP and other websites, unless you want to try to program your own. You should think about this with any system you evaluate.
4. How current do you want the data to be, and how often do you expect it to update? With the sites mentioned above, the most recent readings are slow to show up on and therefore on too. A lot of time seems to pass before updates happen - up to a half-hour delay from real time is our norm, which I find unsatisfactory.

In short, great for gathering data, but not so great for public and timely presentation of the data. Weather Underground has been having its own set of issues too, over the last year or so. You can check my website link below.

Rich K.
My thinking about all of this maybe we need to add dewpoint temperature when we talk about Relative Humidity being its only relative to the ambient temperature and not a good indicator of actual moisture content in the air which IMO is the issue.
100% at 32F (0c) for days is still very little moisture and won't oversaturate the sensor membrane is my thinking. Now take 85% at 65+dp the sensor membrane is absorbing lots of moisture in just hours.

Aviation Weather / Re: Official weather and METAR
« Last post by Otis on Today at 04:08:37 PM »
Cool Paul, thanks for sharing.
WeatherUnderground / Re: Status Message Gone
« Last post by havtrail on Today at 03:57:21 PM »
Already reported by others starting on Oct. 13 in the WU - Let us know your issues thread:

Rich K.
CWOP Forum / Re: Bad analysis data / WXQC Mailing List?
« Last post by galfert on Today at 03:52:06 PM »
It isn't just the graphs with thousands of degrees analysis that is off it is also the analysis data.

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