theweathernetwork.com has a cloud cover overlay for their maps, it's in the drop down on the top left. Is there any way your team can incorporate this somehow with your maps, as cloud cover is an important factor in seeing an aurora. Maybe contact them for information? Perhaps you can find the data elsewhere as well?
Finally, I want to add a thank you, your site helped me see my first aurora!
Thank you, so glad you got to see your first aurora! The cloud cover is something we are looking for and will check into the use of the map you mention. It’s been on a long list of improvements.