This warmer water creates a weak El Niño condition. NOAA announced that the NOAA National Weather Service, the Meteorological Service of Canada and the National Meteorological Service of Mexico have reached a consensus on an index and definitions for El Niño and La Niña events.. NOAA’s Climate Prediction Center issued an El Nino Advisory today, indicating the climate pattern has taken effect and is likely to continue through the spring. El Niño Rapid Response Field Campaign January – March 2016 The major El Niño of 2015-2016 presented an unprecedented scientific opportunity for NOAA to accelerate advances in understanding and predictions of an extreme climate event and its impacts …

Explore El Niño activity and download our Teacher’s Guide. The March 2020 global land and ocean surface temperature departure from average tied with February 2020 as the highest monthly temperature departure without an El Niño present in the tropical Pacific Ocean. INVESTIGATING EL NIÑO People blame El Niño for all kinds of abnormal weather. While the El Nino is expected to be weak, it may bring wetter conditions across the southern half of the U.S. during the coming months. El Niño-Oscillazione Meridionale, conosciuto anche con la sigla ENSO (El Niño-Southern Oscillation), è un fenomeno climatico periodico che provoca un forte riscaldamento delle acque dell'Oceano Pacifico Centro-Meridionale e Orientale (America Latina) nei mesi di dicembre e gennaio in media ogni cinque anni, con un periodo statisticamente variabile fra i tre e i sette anni. El Niño and the Southern Oscillation, also known as ENSO is a periodic fluctuation (i.e., every 2–7 years) in sea surface temperature (El Niño) and the air pressure of the overlying atmosphere (Southern Oscillation) across the equatorial Pacific Ocean. With so much at stake, it’s critical to be able to monitor and forecast when El Niño or La Niña is developing so governments, businesses, and private citizens can prepare.

This image shows the temperature of the ocean's surface during February 2015. The large area of red shows warmer than average waters in the Pacific Ocean near the equator. Det som gör El Niño så speciellt är att det vanligtvis är en drygt åtta grader kallare ström som driver över havet.
NOAA climatologists closely track the development of these oscillating systems, which typically last between one to two years. One of the ways to detect an El Niño event is to look at sea surface temperature (SST).
In the past, local residents referred to this annual warming as “El Nino,” meaning “The Child,” due to its appearance around the Christmas season. This result becomes more conclu-