A link between the solar wind and the occurrence of large tornado outbreaks is found. The solar wind coupling to the Earth’s magnetic field deposits energy into the upper atmosphere at high latitudes. We consider the role of aurorally generated atmospheric gravity waves in the release of instabilities contributing to development of synoptic-scale weather conditions favoring formation of supercells in a strong wind shear environment and high tornado occurrence. 

Weather forecasts that include uncertainty can be difficult to interpret and apply to real decisions. This study presents simplified and user-friendly tools developed in collaboration with professionals to make probabilistic forecasts more accessible. Tested to heat stress during the Paris 2024 Olympic and Paralympic Games and late frost in vineyards, these tools help anticipate risks and support earlier, more informed, and more effective responses.

Efforts to meet the Paris climate goals are falling short. This letter proposes seven ways to boost public engagement and better decisions: clearer scientific reports, hopeful messages, countering false information, climate education, local action in workplaces, open and fair leadership, and focusing on adapting to climate change to also encourage cutting emissions. These strategies blend communication, policy, and community action for a stronger global climate response.

Measurements are crucial for understanding atmospheric processes, water cycles, and climate. This paper focuses on optical disdrometer measurements to study precipitation complexity at the surface, analyzing precipitation episodes in the Basque Country. Using 1-minute disdrometer data, key characteristics like duration, intensity, particle count, and rain amount are examined for episodes previously established through aggregation of minute data.

Our study investigates how air pollution affects lower troposphere behavior. While the overall height of this layer did not change significantly under heavy pollution, we found a slight delay in the start of air movement and a rapid rise of warm air pockets. We also found out that absorbing aerosols warms the air despite blocking sunlight. For the layer height, no dominant effect was found. This research improves our understanding of how pollution influences atmospheric dynamics.

Renewable energy is becoming more common, but its variability creates challenges in keeping electricity supply stable. This study examines how changes in energy generation, known as ramps, occur, how they can be modelled and the associated skill. By analyzing wind and solar power in Ireland, we find that using a mix of sources reduces extreme fluctuations and helps supply stability. Our results also stress the benefits of energy diversity and the challenges of modelling changes at a local scale.

This paper explores the projected changes on wind, relative humidity and solar radiation in future scenarios for the Basque Country. This work is part of the UrbanKlima2050 initiative and aims to provide a more comprehensive characterization of future climate change impacts in the region, and thus, improve the resiliency of the territory. The main results show a decrease in both wind and relative humidity by the end of this century, while solar radiation tends to increase.

To better predict offshore wind energy in Belgium, we improved the Royal Meteorological Institute (RMI) weather model by directly incorporating the effects of wind turbines. We also used AI to account for wind farm wake effects, where turbines slow down wind for other turbines. By combining physics-based models with a neural network trained on observations from the Belgian Offshore Zone, we achieved more accurate forecasts. This helps ensure a stable power grid and supports the growing role of offshore wind in our energy mix.

In this study, the quality of 10 and 100 m wind speeds from three different reanalyses (global and regional) are evaluated along the different coasts of France. The evaluation show that Copernicus Regional Reanalysis for Europe (CERRA) has a high skill for surface wind speed on the three French seafronts, as well as for offshore wind speed at 100 m. Thus, CERRA appears to be the optimal reanalysis to use as a reference for offshore wind studies over the French maritime zone.

The question of how to best evaluate and communicate the value of weather warnings was addressed by a survey. This included questions with respect to the relevance of various aspects of a warning, the potential benefit of providing information on warning quality, the type of useful information and suitable ways of providing such information. Apart from the core information of warnings (time, place and severity) impact information and behavioural advice are seen to add value to a warning.