I saw it too! It was amazing. I was going north over the I-205 bridge at about 820 or so last night, on my way home from the Oregon Duck game (Go Ducks!). I saw it it the same north/nw direction in the sky as it ascended nearly straight down. Bright green with a tale and then fizzled out.

I thought it was a meteor, but wasn't certain... It was defiantly a WOW moment. The only other explanation I could think of was that some dumb-ass was lighting leftover fireworks in Vancouver ( it is extremely dry and high fire danger right now). I am glad to now confirm what it was I saw!