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Outgoing long-wave radiation anomalies for the past year. Regions with more clouds and rain than average are shown in purple; areas with fewer clouds and less rain are shown in orange. Each row in this type of image is the departure from average (1974-2020) at that time. The drier-than-average signature of La Niña in the central tropical Pacific is visible as the large orange area that ends in April 2021. NOAA Climate.gov image, based on data provided by the Climate Prediction Center.