Storm prep

[somerfriend.livejournal.com]

For Somerville and Boston, other than wet basements and potential power outages, do we have anything else to worry about?   In particular, broken windows, how likely is that? 

This page on the city's website is a little alarming:
http://ci.somerville.ma.us/alerts/important-hurricane-information

It is saying we should board up our windows, but I'm assuming this is some generic info they pasted.  Still I'm a little frustrated by not being able to find specific information about Boston.  Most of the news is faced on the Cape/Springfield.   I understand that is where the drama is but I want to know what prep I need to take here too.