Southwest Flight Diverted to Baltimore After Flying Dangerously Close to LaGuardia Tower

FAA is investigating a Southwest Airlines flight that flew dangerously close to the control tower at LaGuardia Airport last month
Plane flew off course due to bad weather as it approached to land, circling once before flying as low as 300 feet
Air traffic controller urgently told pilots to climb to 2000 feet as plane was not lined up with runway
Flight was diverted to Baltimore, where it landed safely before returning to LaGuardia
Southwest said plane encountered turbulence and low visibility; FAA and NTSB also investigating incident