A plume of Saharan dust stretching from the coast of Africa to the northwestern Caribbean and into the Gulf of Mexico is forecast to reach Florida by Saturday, May 31, 2025. Southern and central parts of the state are expected to experience hazy skies and reduced air quality over the weekend. A denser plume could arrive by mid-next week, with the dust reaching Texas by Tuesday, June 3.
Large-scale pressure changes following a strong sudden stratospheric warming event in mid-March 2025, which caused the collapse of the polar vortex, are expected to drive spring weather patterns across Canada and the United States into May. Northerly winds are expected to bring colder air into parts of North America, while high-pressure zones may lead to warmer conditions in the central U.S. and southern Canada. The shifts in weather patterns are consistent with the typical effects observed following a polar vortex disruption, where the jet stream becomes more erratic, leading to unusual temperature distributions and weather events.
A large plume of Saharan dust is moving across the Mediterranean Sea into southern and central Europe, with peak concentrations expected on April 16. The event is likely to reduce air quality and may cause “blood rain” in areas affected by rainfall.
The final polar vortex collapse of the 2024–25 winter season has begun with one of the strongest sudden stratospheric warming (SSW) events being forecast to develop and bring late-season cold to much of the U.S.
Starlink satellites are re-entering Earth’s atmosphere at an increasing rate, with 120 burning up in January 2025 alone. This has created nightly artificial meteor showers and raised concerns about aluminum oxide accumulation in the atmosphere.
An outbreak of polar stratospheric clouds (PSCs), also known as nacreous clouds, has been observed over the Arctic since December 9, approximately one month earlier than the typical season, which in the Arctic usually spans from January to March.
The Air Quality Index (AQI) of 373 in R.K. Puram, Delhi, shows high pollution levels as of 14:35 LT (09:05 UTC) on Saturday, November 16, 2024. The levels of PM2.5 and PM10 are 318 and 258 indicating serious health risks placing Delhi as the second most polluted city in the world, following Lahore, Pakistan. Other pollutants like ozone (AQI 51), nitrogen dioxide (AQI 13), sulfur dioxide (AQI 1), and carbon monoxide (AQI 8) were also measured but are at lower levels.
An unusual buildup of snow from Siberia to North America in late October could destabilize the polar vortex, leading to colder and snowier conditions across the United States, Canada, and Europe this winter.
The polar vortex forming over the Northern Hemisphere in 2024 is at its weakest point for early October in the last 40 years, with potential consequences for winter weather patterns across North America and Europe. The vortex’s unusual behavior this season could lead to significant disruptions in cold outbreaks in parts of the eastern United States, Canada, and Europe.
Himawari satellite found a series of gravity waves moving towards northwestern Australia over the Indian Ocean on September 11 and 12, 2024.
