NOAA (or is it NASA) routinely flies airplanes into hurricanes. If they can withstand that, they can withstand turbulence.

My most memorable turbulence experience was at the start of "parked at the gate for four hours" weather delay. A massive thunderstorm rolled through right before we were scheduled to push back, with high winds and hail. That's the only time I've felt turbulence on the ground, and the plinking of the hail on the hull was pretty memorable too. Once we finally took off I had fabulous window-seat views of the storm all the way from MSP to ATL. Over Hartsfield we did a spectacular high-speed dive through a hole in the clouds to get back under the weather.

We got in so late they sent a special train just for us; it was an express that took us from Concourse D to the main terminal without stopping at C, B, or A. ^ But we still had to wait just as long at the baggage carousel.