The National Oceanic and Atmospheric Administration announced Thursday the arrival of La Niña, advising that conditions are expected to last through the Northern Hemisphere winter. NOAA issued a La Niña watch in July, warning that La Niña could form in the fall. La Niña weakens winds between the ocean surface and the upper levels of the atmosphere, which allows hurricanes to more easily grow. La Niña and climate changeWhile El Niño and La Niña events are regular aspects of global weather patterns, increased global temperatures may temper or change their effects. Outside of any impact on hurricanes, climate change may mean that some older temperature patterns associated with El Niño and La Niña no longer apply.

Source: CNN September 10, 2020 19:41 UTC