NEW: Western Wildfire Season 2021 Northwest Pacific Heat Wave Western Drought 2020-2021 Tweet: Plot of annual Atlantic Multi-decadal Oscillation index by Philip Klotzbach on Twitter Original tweet: Plot of annual Atlantic Multi-decadal Oscillation index using @ColoradoStateU definition since 1878. Trending negative over past few years. Go to Site Related Climate Signals Intense Atlantic Hurricane Frequency Increase
