The tropical Pacific has cooled since the end of El Niño this spring, but the pace of cooling had slowed as of August.
September 8, 2016
The odds of La Nina are lower, and forecasters have dropped the La Nina Watch. Our blogger explains what's happening.
Human-caused climate warming increased the chances of the torrential rains that unleashed devastating floods in south Louisiana in mid August by at least 40 percent, according to a team of NOAA an