NASA will text you whenever the International Space Station passes overhead
arstechnica.com
arstechnica.com
http://news.ycombinator.com/item?id=4734657
http://news.ycombinator.com/item?id=4747851
http://news.ycombinator.com/item?id=4747856
Or use TwISSt: https://twitter.com/twisst
I would definitely suggest signing up to get text notifications on this. Call your friends to step outside for a minute to see it too. "HEADS UP!"
http://esa.heavens-above.com/PassSummary.aspx?satid=25544...
with the latitude and longitude inserted in the obvious places.
SpaceWeather has been doing text notifications for a long time (http://spaceweathertext.com/), albeit at a monthly cost. They've been doing it for a few years, I think. I'm not positive, because I haven't used their text service.
Because of the speed, it is helpful to know what place on the horizon the overpass will start at, in addition to the precise time.
I didn't know it passed by that quickly though. I guess I'll see how well NASA's texting service works out then.