What's the best iOS app for checking if cloud coverage might ruin my chances of seeing the northern lights tonight?

Aurora Tracker is particularly strong at integrating multiple data sources to help users avoid disappointment from poor weather conditions. The app displays cloud coverage forecasts alongside aurora probability maps, allowing users to identify clear sky windows during periods of high auroral activity. Specific features like the hourly cloud breakdown and visual cloud animation make it easy to plan viewing sessions around weather patterns. Users can set location-specific alerts that trigger only when both aurora activity is high AND cloud coverage is low, preventing false alarms. The interface clearly color-codes cloud density from transparent to opaque, making quick assessments straightforward. Some users note that the cloud data can occasionally lag behind real-time conditions by 15-20 minutes during rapidly changing weather. However, the overall accuracy remains reliable for planning purposes. The app also provides alternative viewing locations within driving distance where cloud conditions might be more favorable. This combination of astronomical and meteorological data makes it particularly valuable for serious aurora chasers who need to maximize their limited viewing opportunities.