So you report at midnight? RainCheck typically would run by 7AM. If you report at 7 then it is most likely coincidental that they are close. What about a day where there is significant rain between midnight and the reading at 7?
FWIW, I’ve been reporting my CoCoRaHS readings to WF for over two years and I have yet to see what you describe. They have, however, used that information to calibrate my stations and improve the accuracy of the whole Tempest network.
“So you report at midnight? RainCheck typically would run by 7AM. If you report at 7 then it is most likely coincidental that they are close. What about a day where there is significant rain between midnight and the reading at 7?”
That is why I was careful in how I worded my last post…
“This is of course when the rainfall occurs at the “correct” time. i.e. if it all falls the day before… the day before value is adjust close to the cocorahs report. If it all falls after midnight, the current day value will change after my morning cocorahs entry.”
** I assume they also use radar and other weather stations to know when the precip occurred.
If they are using it to calibrate the tempest hardware… then that is great. Won’t have to go to the Rain Report Accumulation webpage anymore.
I don’t understand why it matters what anybody other than you reports. You can see huge differences in just a short distance separation. They should report what ‘you’ measured and what you measured should match the CoCoRAHS authoritative gauge.
George, I had my number for my Tempest first and then went outside and read my CoCoRaHS gauge. There is no way Tempest or Weather Flow knew that number prior to me reporting it later with CoCoRaHS. I’m not inclined to buy what you’re saying.
So you didn’t read the post I linked above. Got it.
NearCast Rain is not a job that runs once a day like the previous RainCheck. It runs all day and will do its work as it goes.
As mentioned earlier it is using several data sources. This help page has some details about it.
Again for some it will be very useful while for others not. All depends your setup. If you have a setup that is ‘ideal’ you can simply turn it off. It is not destructif on your data.
For those that can’t set the Tempest ideally regarding rain, it will help give better data since it looks your neighbourhood and ‘compensates’ your situation. Again you can toggle it ON/OFF and see both numbers (what your Tempest recorded versus what is seen in your neighbourhood)
My weather station “test-bed” in my backyard in Rochester, NY…four stations and counting!
The location is quite terrible for sampling the weather conditions, too many obstructions within just 10-15 feet of the tripod, but I somehow get good SW/W and NW winds. I recently had to add the guy wires because it was swaying so much in gusty winds…PVC is not ideal, but is the cheapest and easiest to transport.
beware the steel cables, those can induce micro vibrations under some wind conditions and induce false rain. Personally I use climbing rope.
Interesting, did not know about that! I can’t trust the rain measurements anyways because there are too many trees in the way above the station(s)
Good to know.
I am just relaying my experiences.
I am aware of how NR works using radar.
I was referring to how they use radar timings and cocorahs reports to reconcile the 7 AM report time with midnight totals, etc…
Just relaying my experiences with Tempest and coco reports.
Well you beat me by 1 station! 
What part of Rochester are you in? My wife is from Irondequoit.
I’m near College Town/U of R!
OK… the colder part of town (in the winter) .
I know your station is surrounded by trees but are you happy with the wind values you are getting?
George
Yeah, i’m happy with the readings I’m getting…just check my WU page and see how accurate the wind is, very consistent direction…speed is lower than it should because of all the trees/obstructions
Greetings from lake Superior.
Wow! Those will capture Gale and/or Storm-Force winds!
Yeah, that happens pretty regularly September-March.
How does the wind measurements compare between the two?
Pretty similar, I do note that the Davis will sometimes record gusts 1-2 knots higher than the tempest. Overall they are very similar.
