Extreme heat, heavy storms, long -lasting dry or unexpected floods. The weather is becoming increasingly erratic. As the website states, we are facing sharp weather changes again. Behind these fluctuations are often there are two natural phenomena, El Niño (warm phase) a la niña (cold phase). These climatic phenomena affect the ocean temperature and air flow, thereby changing weather conditions on the whole planet.
La Niña’s phenomenon has already reached its peak in the Pacific Ocean. However, along with the current stratospheric warming, it will still have a lasting impact on the atmosphere and weather development over North America. Later during the year, the phenomenon of El Niño may occur, which will affect the winter season. Both phenomena are extremely sensitive to even slight changes in temperature and wind, and therefore the forecast can change quickly.
Usually the change between La Niña and El Niño phenomena occurs approximately every 1 to 3 years. Each phase (cold/warm) usually develops from the end of summer to early autumn and usually lasts until spring. However, some phenomena may last up to two or three years, as we saw it a few years ago. In addition to temperatures, one of the main differences between the phases is the pressure zone.
According to the latest analyzes, cooler waters are in the middle part of the Pacific Ocean, indicating the constant occurrence of La Niña phenomenon. However, an unusual warm anomaly has recently appeared towards the eastern region, which surprised meteorologists. This started about two weeks ago the break -up of La Niña, but in its central parts there is still a strong cold area.
The La Niña phase may still have an impact on the transition from winter to spring, especially if the polar whirlpool is attached. While the current period is captured by the La Niña phenomenon, some long -term predictions are beginning to show the first signs that the El Niño phenomenon could appear in the 2025/2026 season.
Just mentioned the anomaly in the Pacific Ocean may indicate its arrival. In long -term forecasts, these anomalies would could discover in early summer and later during the year they could develop.
The most typical pressure effect of El Niňa is the low pressure area in the northern Pacific. It usually expands and strengthens the subtropical flow over the south of the United States, which brings lower pressure, lower temperatures and more humidity. El Nino is typical of higher humidity and rainfall, so it has an important effect on the course of temperatures and snow during the winter.
