If the 2010 Pakistan Flood Had Hit Portland Instead

The BBC microsite How Big Really? has created an application to put the size of this disaster into geographic context relative to anywhere else in the world. Had this massive disaster hit Portland, the affected area would’ve stretched from the Bay Area nearly to Calgary, Alberta:
I don’t know which relief charity is best, but please make a donation of any kind however you can. This might be the worst catastrophe of our lifetimes, including this year’s Haitian earthquake or even the 2004 Indonesian tsunami. Hurricane Katrina was a light shower compared to this. The number of deceased and displaced children is an unfathomable tragedy.