About Cloud Free Night

Cloud Free Night is a non-profit online weather forecast information service, for the benefit of the Australian and New Zealand astronomy community. It is unique in offering a comparison of the widely available forecasts from the United States GFS global model with higher resolution forecasts from the Australian Bureau of Meteorology ACCESS model.

Where does my weather forecast come from?

Almost every weather website and app you have ever heard of is providing data from the United States (NCEP) GFS model, because it is freely available, even for commercial use allowing anybody around the world to resell weather services using the same underlying data. However, as a global model this is far from the best source of forecasts for the Australian regions and New Zealand, particularly for short-term outlooks.

Cloud Free Night is the only service currently providing detailed cloud forecast information from the Australian Bureau of Meteorology ACCESS model which includes higher resolution regional and city models. Forecast maps over specific Australian regions and New Zealand, and meteograms summarising the forecast over the next ten days for particular locations are available. The maps allow you to toggle between the GFS and ACCESS models at any point while the meteograms (time-series graphs) present detailed cloud information or a summary comparison of the two models. To identify dark sky night opportunities, meteogram-style, Dark Sky images present hourly ACCESS and GFS cloud forecast and moon phase information.

To further increase your forecast confidence, check out the Norwegian weather agency at yr.no, which is the only freely available service providing detailed cloud forecasts from the European global model (ECMWF) for Australian and New Zealand locations. Each Meteogram page on Cloud Free Night has a link to the corresponding location via yr.no, in addition to links to the Australian Bureau of Meteorology official 7-day forecast, Weatherzone three-hourly cloud cover probability for the next 48 hours, OzForecast ADFD meteogram and sunrise, sunset and moon times for each particular location.

Cloud Free Night forecast meteograms cover locations throughout Australia and New Zealand, use the Australian Bureau of Meteorology's ACCESS model data, and include comparison with the United States GFS model.
Meteograms summarising the forecast over the next ten days for particular locations.

Where does the weather observations come from?

Cloud Free Night displays the latest radar images and high-resolution Japanese Himawari-8 satellite images via the Australian Bureau of Meteorology, including animation of the most recent images. The radar images are presented without location names using a modified colour palette for greater clarity. The high-definition satellite images are conveniently matched to the forecast map regions.

How can I access all this information?

Cloud Free Night has multiple levels of access to information on the website: Public (free/no login required), Member (free/login required) and Supporter (contribution/login required). What's available in myCFN? presents a summary of the products/functionality available with these levels of access. Login is via myCFN for a personalised CFN experience with Member or Supporter access. Existing Public (or new) Cloud Free Night users are encouraged to complete the Feedback Survey. You will be registered for myCFN (personalised CFN experience) and rewarded with one month of (no obligation) Supporter access to all features. This is the best way to appreciate the value of all the features in Cloud Free Night.

The People

Cloud Free Night is a personal project by Robert Dahni (retired Meteorologist) with the advice and support from Phil Hart and the Australian and New Zealand astronomy community. Please contact us if you would like a meteogram for your home town location or your club's observing site. We would like to hear your suggestions to enhance the Cloud Free Night service or the website experience.
Cloud Free Night service for the Australian and New Zealand astronomy community. Please consider donating towards the server leasing costs.
Contributions to help cover running costs are most welcome.

©2017 - Cloud Free Night. All rights reserved. - October 24, 2017, 00:57 - 23/10/2017 14:57 UTC