climate international El Niño goes, La Niña comes El Niño conditions have prevailed in the equatorial Pacific in recent months. However, more and more cool deep water is currently reaching the surface off the west coast of South America and cooling it down. The transition from El Niño to La Niña is in full swing and will take place in the coming months. Klaus Marquardt 01.04.2026 11:38 weather international Weather NewsFlash World Every day, the weather makes headlines somewhere in the world, whether it's due to storms, new records or unusual phenomena. We cover the most significant events in detail in our own MeteoBlogs. We continuously summarise exciting and important weather news that is also relevant to the current situation in this NewsFlash. Reto Vögeli 25.03.2026 13:11 weather lexicon An Overview of Different Starts to Spring The start of spring varies depending on the definition: There is the astronomical or calendar start of spring, which occurs this afternoon at 3:46 p.m.; the meteorological spring, which always begins on March 1; and the phenological spring, which depends on the growth of plants. Roger Perret 20.03.2026 12:59 weather international Historic Spring Heat Wave in the U.S. Currently, a heat dome is causing summer-like temperatures across large parts of the United States. During this historic event, high temperatures in some areas are 20 degrees above average, and in some places, all-time April records are even being broken in March. Michael Eichmann 18.03.2026 13:00 weather international Current sea ice extent in the Antarctic and Arctic Typically, the lowest point of summer sea ice extent is reached in Antarctica between mid- and late February, with the winter maximum in the Arctic occurring somewhat later in March. Conversely, the lowest sea ice extent is recorded in the Arctic in mid-September, while the Antarctic reaches its maximum at this time. We are currently at the lowest levels of global sea ice extent since records began. Michael Eichmann 11.03.2026 12:53 weather international Tornado Season USA 2026 There were already a few tornadoes in the US in January and February, three of which even reached category EF2. However, most were weaker and caused only minor damage to property. In the meantime, however, activity has picked up significantly and reached a first negative peak last week, with eight people losing their lives on March 5 and 6. Today another explosive development is looming! Klaus Marquardt 10.03.2026 13:12 weather lexicon The sun is gaining strength, the UV index is rising The days are getting longer. Compared to the shortest days around the winter solstice in December, the sun is now shining around three hours longer at the beginning of March. As the days get longer and the sun rises higher in the sky, exposure to harmful UV radiation increases again. Sun protection is therefore becoming increasingly important, especially for activities in the mountains, which are still covered in snow. Roger Perret 06.03.2026 12:36 weather international Relatively cold winter in Northern Europe In Northern Europe, temperatures have been below average in recent weeks, causing sea ice in the Baltic Sea to expand to a relatively large extent. This was mainly due to recurring and persistent high-pressure systems, whereas in our region, air pressure was at record lows for a prolonged period. Michael Eichmann 20.02.2026 13:50 weather international Cyclone Gezani and the tropical storm season in the southwest Indian Ocean After reaching and crossing Madagascar, Cyclone Gezani is currently over the Strait of Mozambique and gaining power again . However, according to the models, the storm will soon turn south and only marginally affect the African mainland. Michael Eichmann 13.02.2026 12:14 weather international Winter Olympics in Milan and Cortina d'Ampezzo The XXV Olympic Winter Games are taking place in Milan and Cortina d'Ampezzo. In this live ticker, we will keep you up to date on the weather conditions at the various competition venues. Michael Eichmann 11.02.2026 12:17 weather international Heavy rainfall in southwestern Europe and Morocco There have been heavy rainfalls in parts of the Iberian Peninsula and Morocco recently, more heavy precipitation is expected in the coming days! Klaus Marquardt 03.02.2026 13:48 climate international Polar vortex and first winter trend 25/26 In late autumn and winter, attention repeatedly turns to the stratospheric polar vortex. Its intensity and behaviour also have a delayed influence on the actual weather layer – the troposphere. After a period of weakness in November, the polar vortex recovered, and now something is happening again. Here is an update! Klaus Marquardt 30.01.2026 13:44 weather international The great cold wave of 2012 Fourteen years ago, one of the most severe cold spells in Europe began, with the first two weeks of February 2012 dominated by Frost. The cold spell hit Eastern Europe and the Balkans hardest, claiming several hundred lives. Klaus Marquardt 27.01.2026 13:14 weather international Significant snow and ice storm in the USA Arctic air masses are increasingly flowing into the United States from Canada. This is resulting in heavy snowfall in many places, while freezing rain is occurring in a transition zone. These ice accumulations in particular are likely to cause significant problems in some regions, with widespread power outages. Michael Eichmann 25.01.2026 19:00 weather international Harry Brings Storms and Heavy Rain to the Mediterranean Region Storm system Harry is currently bringing exceptionally large amounts of precipitation to wide parts of the Mediterranean region. In some areas, the measured 24-hour rainfall totals exceed the January average by three times. This precipitation event is accompanied by strong winds and high wave activity. Michael Eichmann 20.01.2026 14:26
climate international El Niño goes, La Niña comes El Niño conditions have prevailed in the equatorial Pacific in recent months. However, more and more cool deep water is currently reaching the surface off the west coast of South America and cooling it down. The transition from El Niño to La Niña is in full swing and will take place in the coming months. Klaus Marquardt 01.04.2026 11:38
weather international Weather NewsFlash World Every day, the weather makes headlines somewhere in the world, whether it's due to storms, new records or unusual phenomena. We cover the most significant events in detail in our own MeteoBlogs. We continuously summarise exciting and important weather news that is also relevant to the current situation in this NewsFlash. Reto Vögeli 25.03.2026 13:11
weather lexicon An Overview of Different Starts to Spring The start of spring varies depending on the definition: There is the astronomical or calendar start of spring, which occurs this afternoon at 3:46 p.m.; the meteorological spring, which always begins on March 1; and the phenological spring, which depends on the growth of plants. Roger Perret 20.03.2026 12:59
weather international Historic Spring Heat Wave in the U.S. Currently, a heat dome is causing summer-like temperatures across large parts of the United States. During this historic event, high temperatures in some areas are 20 degrees above average, and in some places, all-time April records are even being broken in March. Michael Eichmann 18.03.2026 13:00
weather international Current sea ice extent in the Antarctic and Arctic Typically, the lowest point of summer sea ice extent is reached in Antarctica between mid- and late February, with the winter maximum in the Arctic occurring somewhat later in March. Conversely, the lowest sea ice extent is recorded in the Arctic in mid-September, while the Antarctic reaches its maximum at this time. We are currently at the lowest levels of global sea ice extent since records began. Michael Eichmann 11.03.2026 12:53
weather international Tornado Season USA 2026 There were already a few tornadoes in the US in January and February, three of which even reached category EF2. However, most were weaker and caused only minor damage to property. In the meantime, however, activity has picked up significantly and reached a first negative peak last week, with eight people losing their lives on March 5 and 6. Today another explosive development is looming! Klaus Marquardt 10.03.2026 13:12
weather lexicon The sun is gaining strength, the UV index is rising The days are getting longer. Compared to the shortest days around the winter solstice in December, the sun is now shining around three hours longer at the beginning of March. As the days get longer and the sun rises higher in the sky, exposure to harmful UV radiation increases again. Sun protection is therefore becoming increasingly important, especially for activities in the mountains, which are still covered in snow. Roger Perret 06.03.2026 12:36
weather international Relatively cold winter in Northern Europe In Northern Europe, temperatures have been below average in recent weeks, causing sea ice in the Baltic Sea to expand to a relatively large extent. This was mainly due to recurring and persistent high-pressure systems, whereas in our region, air pressure was at record lows for a prolonged period. Michael Eichmann 20.02.2026 13:50
weather international Cyclone Gezani and the tropical storm season in the southwest Indian Ocean After reaching and crossing Madagascar, Cyclone Gezani is currently over the Strait of Mozambique and gaining power again . However, according to the models, the storm will soon turn south and only marginally affect the African mainland. Michael Eichmann 13.02.2026 12:14
weather international Winter Olympics in Milan and Cortina d'Ampezzo The XXV Olympic Winter Games are taking place in Milan and Cortina d'Ampezzo. In this live ticker, we will keep you up to date on the weather conditions at the various competition venues. Michael Eichmann 11.02.2026 12:17
weather international Heavy rainfall in southwestern Europe and Morocco There have been heavy rainfalls in parts of the Iberian Peninsula and Morocco recently, more heavy precipitation is expected in the coming days! Klaus Marquardt 03.02.2026 13:48
climate international Polar vortex and first winter trend 25/26 In late autumn and winter, attention repeatedly turns to the stratospheric polar vortex. Its intensity and behaviour also have a delayed influence on the actual weather layer – the troposphere. After a period of weakness in November, the polar vortex recovered, and now something is happening again. Here is an update! Klaus Marquardt 30.01.2026 13:44
weather international The great cold wave of 2012 Fourteen years ago, one of the most severe cold spells in Europe began, with the first two weeks of February 2012 dominated by Frost. The cold spell hit Eastern Europe and the Balkans hardest, claiming several hundred lives. Klaus Marquardt 27.01.2026 13:14
weather international Significant snow and ice storm in the USA Arctic air masses are increasingly flowing into the United States from Canada. This is resulting in heavy snowfall in many places, while freezing rain is occurring in a transition zone. These ice accumulations in particular are likely to cause significant problems in some regions, with widespread power outages. Michael Eichmann 25.01.2026 19:00
weather international Harry Brings Storms and Heavy Rain to the Mediterranean Region Storm system Harry is currently bringing exceptionally large amounts of precipitation to wide parts of the Mediterranean region. In some areas, the measured 24-hour rainfall totals exceed the January average by three times. This precipitation event is accompanied by strong winds and high wave activity. Michael Eichmann 20.01.2026 14:26