Incident
A flight encountered turbulence while descending toward its destination. The first officer contacted the flight attendant and advised securing the cabin due to possible turbulence. While descending through 4,000 feet, the airplane experienced "moderate or greater chop." During the encounter, the flight attendant was thrown to the floor while attempting to secure the galley. The captain elected to divert the flight to an alternate airport, where it landed uneventfully.
Weather Conditions
Weather recorded at the destination airport around the time of the incident included surface winds at 17 knots, gusting to 22 knots. The conditions featured decreasing thunderstorms, scattered cumulonimbus clouds at 4,200 feet, a broken cloud layer at 9,500 feet, and an overcast layer at 11,000 feet.
Aftermath
The flight diverted and landed without further incident at the alternate airport.