https://www.pcgamer.com/fortnite-radar-sign-locations/

Time is losing all meaning. Coinciding with Fortnitemares, week five of Fortnite's sixth season is already here, which means there are more challenges to complete for a skin that may or may not look bad. This week we're getting back in the driver's seat and puttering around town to record a speed of 27 or more on different radar signs spread around the map. Going fast enough is one thing—get a big hill and a shopping cart or a quadcrasher for these, if you can—but finding the radar signs is another. No worries, though. We've already found all of Fortnite's radar signs to make your joy ride truly joyful.

Check out the map below for each radar sign location.