We saw plenty of unusual weather phenomena last week including a 'fogbow' which user Shelagh Molyneux captured in Liverpool.

Appearing on the day of Storm Dudley’s arrival, the arching light shines overhead in Liverpool.

Also known as a ghost rainbow, fogbows form in a similar way to rainbows with sunlight refracted through water droplets in the sky. The only difference is the size of the water droplets.

In fog, the droplets are much smaller, typically less than 0.1mm. This means the sunlight doesn’t quite have enough room in the droplet to refract. Instead, the light simply diffracts, or spreads out.

This is why fogbows are usually completely white.

If you see anything unusual near you, be sure to send it in by tapping the image icon in the top-right of the app or use our dedicated uploader.