We are seeing a lot of tweeting in the path of Irene. The North Eastern coast of the United States is normally high for tweeting, but this is very high for a Saturday morning. Or as they say in the movie Social Network, 'it's high for half-time during the Super Bowl' high.
Good sign is that network coverage has not been visibly broken. We are one of many groups tracking the social media response to the Hurricane.
Washington DC Clima.Me score. Score is out of 100. A score of 80 or more is high, even in a fairly large city.