UK context#synoptic#naming
Storm naming (MO / MÉ / KNMI)
At a glance
The Met Office, Met Éireann and KNMI jointly name extratropical storms that are expected to impact the UK / Ireland / Netherlands. It's about impact-based warning, not convection.
Deep dive
Names run alphabetically through the storm season (September–August) skipping Q, U, X, Y, Z. A storm gets named when it's forecast to produce an amber or red warning for wind, rain, or snow in the three partner countries.
Extratropical storms — low-pressure systems sweeping off the Atlantic — are a different phenomenon to summer convective outbreaks. They're larger-scale, longer-lived, driven by temperature gradients, and dominate UK winter weather. See case-archive for how chaseit catalogues both types.