Clear Sky Chart

What’s This?

It’s the astronomer’s forecast. At a glance, it shows when it will be cloudy or clear for up to the next two days. It’s a prediction of when Robert Ferguson Observatory, CA, will have good weather for astronomical observing. The data comes from a forecast model developed by Allan Rahill of the Canadian Meteorological Centre. CMC’s numerical weather forecasts are unique because they are specifically designed for astronomers.

Click on the image below to see up to date information about RFO sky conditions.