The sound of mortars

I left Q-West about seven hours ago and am now at Forward Operating Base Anaconda waiting for a flight to Kuwait. While I was waiting to pick up my bags about an hour ago, I heard three mortar rounds go off in succession. They're pretty loud. I heard this base is a lot more noisier than Q-West, and so far, it has been. Anyway, I have little more than an hour to go before my flight, which means I should get going. Flight times change like the wind over here. Hopefully, it won't be cancelled.