The National Institute of Meteorology (Inmet) issued a warning this Tuesday (9) for conditions favorable to a new episode of El Niño. This global climate phenomenon results from increases in winds and sea surface temperatures over the tropical Pacific Ocean. Related news: Minister highlights actions against El Niño and environmental advances. El Niño: UN asks the world to prepare for the risk of extreme heat. Santa Catarina declares climate alert due to El Niño. According to Inmet, an El Niño event occurs when the Relative Oceanic Niño Index (Roni) remains equal to or greater than 0.5°C for at least five quarters. “Based on data observed in May and projections, it is possible to infer that the first quarter to reach this threshold will be April-May-June”, informs the Inmet bulletin. Monitoring The institute monitors conditions in the Equatorial Pacific Ocean, regarding Sea Surface Temperature (SST), as well as other atmospheric and oceanic indicators associated with the El Niño phenomenon. At the same time, it evaluates forecasts and bulletins issued by the main international meteorological centers specializing in climate monitoring. The forecast is that Inmet will release, at the end of this week, a new technical note on the possible evolution of the phenomenon.