For selected clear sky clocks, I've added a page that summarsizes the distribution of all of the past forecasts (for which I have records). (Some people have...
The powerfailure of last summer gave an accidental experiement where it was observed that without all the power generation, air pollution goes down quite a...
I'm often asked to create CSCs for europe. My answer is always 1. CMC dosent forecast astronomy-weather for europe and 2. I dont know of another cloud forecast...
Allan and Attilla, I'm curious if either of you have things in the works that will show up in the CMC forecasts or the Clear Sky Clocks. I think your work has...
Hi Over here in Europe we are very jealous of the CSC. We have one or two relatively poorly implemented astro forecasts of very questionable accuracy. Is...
The Clear Sky Clock website doesn't seem to be available anymore. Is it a technical or financial problem? If it is the latter, I promise to change my selfish,...
I have made (or rather updated) a page about the "astronomical weather" of Crete, Greece: http://home.no.net/jonbent/Sky.html It contains my attempt at...
Hi all, I have a set of seeing observations that I would like to correlate to meteorological conditions. I used to live close to an airport where a weather...
... Good morning Attilla Well.... I checked and all images were produced last night. I have just transfered them to the web site and I saw all transfer...
There is a temporary problem with the domain cleardarksky.com But here is a temporary workaround to see the clock images. 1. Find the url you usually use to...
Hi As you all know, I have developped a new version of the transparency forecast which is now including smog. I was waiting for feedback or smog episode over...
It is me again... I didn't ask help from Ontario and southern Quebec regions due to smoke from forest fires which reduce the transparency to 2/4 depiste ...
Hi Attilla and all the astro-weather yahoo group. You will find two new files under "files" section... transparency 1 and transparency test. The transparency 1...
Starting June 20th... hourly transparency forecast instead of 3 hours interval forecast are now available on my web site and Attilla CSC web site. I am working...
Hi, Attilla and I are pleased to announce that we are now providing hourly forecast for the cloud field all across north america. This was the most requested...
CMC implemented a new REGIONAl DM model today which is a version running on the new IBM super computer (replacing NEC SX6). This model has many importent...
... Hi Clif... The seeing forecast I developped is based on visual observations. I have the impression the CCD seeing and visual seeing corrolation isn't that ...
... Steve, Does your 18" have fans in the back of the mirror to coll it down? My 22" scope has 4 fans blowing air on the back of the mirror. It does improve ...
Hi, Has anybody tried using an archive of the old maps to compare potential locations for an observatory? I'd be interested in looking back through the maps...
... Hi David, Thanks for your interest about the transparency forecast. I actually use the spread between the dew point and temperature from the surface up to ...
... I agree with you Mike, the time step is too long for fast moving low clouds streamers from the great lakes. This is a limitation of the CSC in forecasting...
I just wanted to say thanks to Allan and Atilla for this excellent service. I've been a user for sometime and glad to see Colorado has the most clocks. I've...
... Oops. I meant "Mr. Gary". That reminds me. As I mentioned. I've been quoting to people your previous accuracy summary of 83% accuracy in the first 15...
Hello A long time ago I made statistics of the average cloud cover during the night. I had 30 years data from all hours from a station at 58N 17E. To my...
This Leonid weather page has an internesting map of cloudiness fraction for the month of november. http://home.cc.umanitoba.ca/~jander/Leonids/leonids.htm ...
I dragged myself out of bed at 4 a.m. for a look at the planets. As usual, I put the 10-inch out into the night air before I went to bed, so its temperature...
