The relationships among CAW, heatwaves, wildfires, and pollution. Anomalous anticyclones characterize the atmospheric circulation that develops concomitantly over the three remote regions around the summertime Arctic (July and August). The authors named it the circum-Arctic wave (CAW) pattern. These anticyclones induce warm and dry conditions from the surface to the […]

Analysis of the first super slow motion recordings of upward flashes suggests a possible explanation for the formation of luminous structures after electrical discharges split in the atmosphere. Credit: INPE Analysis of the first super slow motion recordings of upward flashes suggests a possible explanation for the formation of luminous […]

The Finnish Meteorological Institute’s observation station used in the study, Pallas National Park, Arctic Finland. Credit: Jeff Welker The April snow falling on fruit blossoms in Europe these days may be directly connected to the loss of the sea ice in the Barents Sea in the Arctic. That was certainly […]

March 23, 2021 The western United States is currently experiencing moderate to severe drought, and it is expected to worsen in upcoming months. Almost half of the United States is currently experiencing some level of drought, and it is expected to worsen in upcoming months. Experts say the dry conditions could put […]

March 1, 2007, March 14, 2011, February 28, 2021 On March 11, 2011, a magnitude 9.1 earthquake jolted the seafloor about 70 kilometers (45 miles) offshore of Japan’s Tohoku region. It was the largest quake recorded in Japan and the fourth largest in the world since seismic recording began around […]

In mid-January 2021, the Pacific Northwest of North America was soaked by several episodes of heavy rainfall, leading to widespread flooding and landslides. In mid-January 2021, the Pacific Northwest of North America was soaked by several episodes of heavy rainfall, leading to widespread flooding and landslides. The culprit was a […]

The stratospheric potential vorticity field on February 10, 2018. The Stratospheric Polar Vortex is about to split in two, and the weakening of the vortex was followed around two weeks later by a severe cold air outbreak over Europe known as the Beast from the East. Data from ERA-Interim reanalysis […]