. Truth may hurt. The pictures show that the Pacific Ocean Warm Pool ( POWP); has already shifted eastward even beyond the Date Line., which according to me indicates that the ENSO is “on”. I am a Scientist from India. I have published a paper in 1990 on POWP shifting and its effect on Indian summer monsoon rainfall. Gopinathan Krishnan .by GopiIndia - Yosemite and the Sierra Nevada. News & Discussion