From space.com :

The annual Leonid meteor shower could produce a strong outburst this weekend for residents of eastern North America and Western Europe. A brief surge of activity is expected begin around 11:45 p.m. ET Saturday, Nov. 18. In Europe, that corresponds to early Sunday morning, Nov. 19 at 4:45 GMT. The outburst could last up to two hours. At the peak, people in these favorable locations could see up to 150 shooting stars per hour, or more than two per minute. "We expect an outburst of more than 100 Leonids per hour," said Bill Cooke, the head of NASA's Meteoroid Environment Office. Cooke notes that the shooting stars during this peak period are likely to be faint, however, created by very small meteoroid grains. Elsewhere people will see the typically enjoyable Leonid display of a few meteors each hour, weather permitting and assuming dark skies away from city lights How to watch Precise prediction of meteor showers is an infant science, so those in position to observe the possible outburst should plan to head out a half-hour before the predicted peak, allowing eyes time to adjust to the dark, and stay out for up to a half hour after the expected peak. No special equipment is needed. Telescopes and binoculars are of no use. A lounge chair or blanket and warm clothes are all you need [meteor watching tips]. Find a dark location with a clear view of the Eastern horizon. Lie back, face East, and scan as much of the sky as you can . You never know exactly where a Leonid will appear.

Just for those interested - it could be a really impressive spectacle !