|Fogbow with multiple supernumeraries
Imaged by Alex Tudorica on La Palma, Spanish Canary Islands.
©Alex Tudorica, shown with permission
This fogbow is unusual for its many well defined and coloured supernumerary arcs – a sign of generation by droplets having a very narrow range of diameters.
Supernumeraries – when present – are a good gauge of droplet sizes. Smaller droplets give more widely spaced supernumeraries and a broader primary fogbow.
|Whenever a fogbow is seen, search for the accompanying glory.|