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Davis Instruments Weather Stations / Re: Davis bucket calibration
« Last post by weatherc on Today at 08:34:43 AM »
Six inches an hour (2.5mm/minute) is way up there and beyond what most gauges would ever see on any regular long term basis.

I dis-agree on this, rates more than 150 mm/hr are nothing that unusual during thunderstorms. My record-rainrate, this in south Finland and with 10 years of data, are 400+ mm/hr. Yes, it REALLY rained then  :lol:
Custom Website Templates / Meteotemplate - Block Update Database Info 3.0
« Last post by Jchym on Today at 08:30:27 AM »
Block Update Database Info 3.0

Hi guys,

I decided to redesign this block and show some extra info. First of all I changed the way the duration of measurements is displayed. Instead of showing something like 6 years = 72 months = . days etc. it now shows something like 6 yrs, 2 months, 3 days etc.

Next I also added a more section, which shows all the parameters that are being logged and I also implemented the new alldataExtra table, so if you are saving data from any extra sensors, it will appear in the table as well.


A reasonable feed arrangement can be made using a irrigation dripper, some drippers work ok some don't, it takes a little experimenting to find one that works ok, adjustable for different feed rates which typically need to be 60 minutes plus, the more time allowed will be more typical of most rain rates. For standard Davis cone & 0.2mm tippers run 425ml which should click over a tad under 100 tips, round out to the next tip with a syringe and calc things back from this.

I don't find this true. I started with the slow drip and gauges rarely matched. In fact Novalynx out of California recommends and calibrates all new tipping buckets at 6" per hour rate.

Here is NovaLynx quote: For the rain gauges manufactured by NovaLynx, the factory calibrated flow rate is six
inches per hour, unless otherwise specified.

Another: Factory calibration uses the 1/16" diameter orifice at 6"
per hour for an 8" rain gauge. This rate gives a good overall results.

As we know from many studies and reports tipping gauges are not constant across the range of very low to medium to heavy rain rates. Six inches an hour (2.5mm/minute) is way up there and beyond what most gauges would ever see on any regular long term basis. NovaLynx may do this for some specific reason, have no background with NovaLynx but have spent many hours over many years calibrating & comparing Davis gauges and have enough figures to know what works and what doesn't.

I have a little experience calibrating also and know the slower rate calibration doesn't follow my 8" STG and have found the Novalynx recommended calibration works best on both the 8" Texas Electronics and 8" Rainwise.
I stopped chasing the calibration on Davis buckets long time ago because they were all over the place non consistent and unreliable can't recommend to anyone. 
I've never tried the aeroCone and don't plan on it when a quality 8" rainwise replaces and works great. They are consistent and as accurate as many high end buckets if calibrated at 6" per/hr rate.

Edit: I should say this 6" hr rate actually shows about 5 1/2" per the Davis console. Why it works best? I'm not sure, but even after an inch of rain with this calibration I can have zero error or within .02 on the 8". It just works, I was first skeptical and now I understand why they recommend it.

VERSION 3.4-X5 (Friday 21st July 2017) Updated
  - New Cloudbase "Relative" Indicator" simple one line jquery and a few lines of css with SVG . doesnt get any simpler than that.
  - CSS files updated
  - easyweathersetup.php updated to reflect new module requires full update including settings1.php !! .
  - UVINFO pop included brief description of World Health Organization recommendations and protections .
  - New alerts added for aurora for those in northern latidudes 49 deg and above based on KP index value
  - PLEASE NOTE * FULL UPDATE is required many files updated and download remains under 3mb at 2.64mb !! .. ...

Tech Corner / Re: Adding LED (or?) to shield fan help
« Last post by Bashy on Today at 01:13:12 AM »
Hi Mick,

None of my fans state the max mA or any mA for that matter, i know one needed about 1A going by the meter on my psu

Added  a options for night  mode  LDR is to switch the fan off  automatically

Is there an option for lower voltage (slow the fan) instead, some fan movement will be better than none i think

Just wondering if to have an option to add a 12v fuse on the 12v dc  power input?

why? in case of over voltage? wired wrong etc?
WeatherUnderground / WU displays wrong location on home page
« Last post by billadler on Today at 12:32:29 AM »
When I visit Weather Underground,, I see in big, bold letters the name of a station and weather that's not mine, Budokan, Japan. (The temperature is also much higher than the correct temperature. Budokan is a sports arena.)

I've reset my home location and favorites multiple times, but this location, Budokan, Japan keeps showing up on Nothing I seem to be able to do fixes this problem of seeing the wrong location.

Can anyone tell me how to fix Wunderground's incorrect opening page location?



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Weather Conditions Discussion / Re: Solar Eclipse 2017
« Last post by WX4GPS on Today at 12:15:44 AM »
I have reached out to this astronomer, thank you.  This was something I was exactly looking for.
Meteohub/Meteobridge / Re: Meteobridge software
« Last post by okieman98 on Yesterday at 11:35:54 PM »
Weather Conditions Discussion / Re: Summer/Winter 2017
« Last post by ValentineWeather on Yesterday at 11:24:41 PM »
I'll take 110F with a 45F dewpoint any day over this... It's supposed to be hotter tomorrow.

Same here but the airport was 112 at 52 dp. Heat index 110.
My station was was a mild 108 heat index
I have the SHT31 mounted in a non-aspirated shield at 0.5 meter (1.5 feet) above the ground directly underneath my ISS (24 hour FARS) also with the SHT31 mounted at 2 meters (~6 feet). Today the 0.5m temp rose to 97F while the 2m temp rose to only 93.3F. You will also see substantial differences at 10m (33 feet). We have a setup of 4 Vaisala sensors on campus at UAH. See the 0.5m, 1m, 2m, and 10m temp sensors and data here:

*Note: the RH sensor (and calculated dewpoint) currently has a low bias.

**Note 2: all radiation shields at the site on campus are identical and non-aspirated.
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