Please, this is not (yet) a war in Lebanon. We use to call that limited military operations, and the targets are not civilians. The Lebanese are not preparing for an evacuation, they´re not going to be bombed out. Tanks are not expected to roll through Beirut.
The best suggestion is to do what the locals do, and have the luggage packed, being ready to go. Flashlights are useful, and batteries. There´s enough food, etc in the hotels available. Our fellow FReeper will be home within the next 4 days I think.
The power has gone out three times during the last four hours. But, then again, it keeps coming back on.