Image (IMAGE) University of Tsukuba Caption University of Tsukuba researchers identified warm conditions in the Indian Ocean as a major factor driving both warm winters and extreme summer rainfall in central China and Japan. An anomalous anticyclone in the subtropical western Pacific was strongly associated with the provision of moisture to sustain the extreme rainfall, leading to catastrophic flooding events. These observations could be applied to future forecasting and prediction of extreme summer rainfall in East Asia. Credit University of Tsukuba Usage Restrictions Unauthorized use is prohibited License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.