The alert made a loud siren-like sound when delivered to devices, lasting for around 10 seconds.
The message, written in Welsh and English, suggested “gathering torches, batteries, a mobile phone power pack and other essential items you already have at home”, in case of power cuts.
It warned people to stay indoors due to the risk of falling trees, flying debris and large waves around coastal areas.
The notification was sent by the government and it was the largest use yet of the UK warning system.
The alert was sent to every smart device phone within range of communication masts in the at-risk area.
Storm Darragh is the fourth named storm of the year, after Ashley, Bert and Conall.
Did you get the alert on your phone? Has Storm Darragh affected your area?
Let us know how you are passing the time staying safe indoors using the comments section below.