The World Meteorological Organization released a new version of the “Global Seasonal Climate Update” stating that the La Niña phenomenon has formed. This year’s La Niña phenomenon is expected to be moderate to strong and will continue into next year, affecting temperatures, precipitation and storm patterns in many parts of the world.
La Niña refers to the central equatorial Pacific and large-scale cooling of ocean surface temperatures in the east, accompanied by changes in tropical atmospheric circulation (i.e., winds, pressure, and rainfall). Its effects on weather and climate are generally opposite to those of El Niño.
The picture comes from the World Meteorological Organization
The latest from the World Meteorological Organization Seasonal climate forecasts indicate that tropical Pacific sea surface temperatures are likely to remain at La Niña levels through the end of 2020 (90% probability) and may continue into the first quarter of 2021 (55% probability).
The most significant precipitation anomalies associated with the 2020 La Niña event will occur in: below-normal rainfall in the greater Horn of Africa and Central Asia, while in Southeast Asia, some Pacific islands and Northern parts of South America experienced above-normal rainfall.
The World Meteorological Organization pointed out that it should be noted that El Niño and La Niña phenomena are not the only factors driving global and regional climate development. Every La Niña or El Niño event is different, and their impact on regional climate can vary depending on the time of year and other factors. Therefore, decision makers should always monitor the latest seasonal forecasts for the most up-to-date information.
Governments can use global announcements of La Niña events to mobilize planning in climate-sensitive sectors such as agriculture, health, water resources and disaster management. At the same time, as response capabilities are affected by the COVID-19 epidemic, the World Meteorological Organization is vigorously strengthening support and consultation for international humanitarian agencies and working hard to reduce the impact on the most vulnerable groups.
The picture comes from the World Meteorological Organization
Talas, Secretary-General of the World Meteorological Organization, said that the El Niño phenomenon and La Niña are the main natural drivers of the Earth’s climate system, but all current naturally occurring climate events occur in the context of human-induced climate change, which exacerbates extreme weather and affects the water cycle.
Talas also pointed out that La Niña typically has a cooling effect on global temperatures, but the heat trapped in the atmosphere by greenhouse gases is enough to offset this effect. As a result, 2020 will remain one of the warmest years on record, and 2016 to 2020 is expected to be the five warmest years on record. Current La Niña years are even warmer than past years with strong El Niño conditions.
Some time ago, stimulated by foreign orders, shopping festivals and the expectation of cold winter, the down jacket category in the textile industry ushered in a wave of craze. Many people I started to place orders for down jacket fabrics and ready-made clothes. However, the World Meteorological Organization revealed the forecast for a warm winter this time. In addition, orders have gradually cooled down. Maybe some people will repeat the mistake of hoarding masks in large quantities in the first half of the year.
Here, the editor reminds: market conditions are elusive, and simple expectations of temperature should not be a reference for decisions such as placing orders and stocking up. Currently, many Western countries have once again adopted lockdown measures. The foreign trade prospects are also somewhat unclear due to the measures taken by the city. The specific details still need to be paid attention to.
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