What Causes Sun Dogs?
What causes sun dogs? Learn how ice crystals create these beautiful mock suns and how to spot and photograph them.
Shelf Cloud vs Wall Cloud: How to Tell the Difference
Shelf clouds and wall clouds are both dramatic storm features, but they form in very different parts of a thunderstorm and can indicate very different weather conditions.
Why Are Storm Clouds Green?
Discover why storm clouds sometimes turn green, what causes the unusual colour, and whether green skies are linked to severe weather or tornadoes.
What Are Mammatus Clouds? The Science Behind These Strange Pouch-Like Clouds
Mammatus clouds are among the most dramatic cloud formations in the sky. Learn how they form, what they mean for weather, and why photographers love them.
What Are Altocumulus Clouds? A Complete Guide for Weather Watchers and Photographers
Altocumulus clouds are one of the most visually striking cloud types. Learn how they form, what they mean for the weather, and how to photograph them.
Severe Weather Risk Levels Explained: Marginal to High Risk Meaning
What do severe weather risk levels really mean? Learn the difference between marginal, slight, enhanced, moderate and high risk—and how to read the sky like a weather observer.
You’ve Probably Already Filmed Something That Could Sell
Turn the weather footage you’ve already captured into something more—earn from your videos and get a £10 bonus on your first sale.
What Are Cirrus Clouds? Formation, Types and Weather Signs
Cirrus clouds form high above the weather, shaped by ice and fast winds. Learn how to recognise them, what they reveal, and why they reward careful observation.
Featured Meteorologist Alex Kirchner
Alex Kirchner reflects on forecasting Wisconsin’s wildly varied weather, managing high-stakes storm coverage, and the long-term changes that could reshape the region in the years ahead.
Polar Vortex Weakening: Sudden Stratospheric Warming Explained
A weakening polar vortex could trigger a Sudden Stratospheric Warming, increasing the risk of extreme winter weather. Learn what this means for the UK, Europe, and North America.
The North Atlantic Oscillation and its Effects on Climate and Climate Change
1. Introduction: Defining the North Atlantic Oscillation (NAO)
The North Atlantic Oscillation
Photo of The Week Competition 21st February 2025
The winning image for the weather and landscape photo of the week competition on the 21st February 2025, plus the best of the rest.