Me an Mrs Vito stayed out till 3am watching… saw some great fireballs, but they were always away from were the camera was pointing!
We should get a good show tonite!..
The normal, dependable component of this "old faithful" shower should reach its broad maximum around 17 hours Universal Time on August 12th, which in North America is around the middle of the day (1 p.m. Eastern Daylight Time). So for meteor watchers here, the nights before and after should be about equally good. Fortunately, the Perseids stay active for several days before and after their peak.
In addition, there's a slight chance that a brief extra peak, lasting perhaps a few hours, may arrive around 9 hours UT August 12th (5 a.m. EDT, 2 a.m. PDT). Mikiya Sato in Japan calculates that at that time, Earth may pass through a streamer of material that was shed from the Perseids' parent comet, Swift-Tuttle, during its pass by the Sun in the year 1479. Last year's Perseid shower displayed a very strong extra peak due to a similar streamer shed by the comet in 1862.
http://skyandtelescope.com/observing/objects/meteors/article_1557_1.asp
ANdy