You can add a marquee strip across the top of your site, with a link if necessary. This can be useful for inclement weather announcements, major onsales or subscription announcements. 

To activate the Marquee, go to Theme Settings >> Announcements

The entire marquee will be linked if you add a Marquee Link; there is not currently an option to link just part of the text. 

If you'd like users to be able to close the Marquee, activate Allow Dismissal.