There is a possibility of a second, perhaps larger event:
Space weather
If I've got the time right, it's not due until after 11pm. You can check activity in real time at:
Aurora watch real-time activity
If the graph is green, not much point looking outside but once it goes orange then look to the north and make sure you spend at least ten minutes in darkness to get acclimatised as any effect is likely to be faint, unless you're in the north of Scotland.
In East Anglia in the past, the best I've seen for any aurora is a faint green glow with red flickers that any street lighting nearby would drown out. It's a really wierd effect - the light is not static at all but dances and flashes.
John
[edit] It looks as some of the alerts have been cancelled -
NOAA alerts