Sunny : The adjective classification of the sky when 5/10 or less of the sky is obscured by clouds. Part of the National Fire Danger Rating System (NFDRS)
National Wildfire Coordinating Group (NWCG), Glossary of Wildland Fire Terminology, NWCG Program Management Unit, National Interagency Fire Center, Boise, ID, USA 2014. http://www.nwcg.gov/pms/pubs/glossary/pms205.pdf, (For Fr - Amer) {45}