1 The Tri-State Tornado lasted for 3 1/2 hours, starting down at 1:01pm 3 miles NNW of Ellington, MS and dissipating at 4:30pm 3 miles SW of Petersburg, IN. 2  Average forward speed of this tornado was 62 miles-per-hour with a record setting speed of 73 miles-per-hour at one point.
The side effects of a blown head gasket include oil and coolantmixing, poor performance, and smoking.
A problem again with my Buick Enclave. This time the head gasket blew. I noticed it when it blew oil all over the side of the car. The engine was also blowing white smoke out of the exhaust. GMC shop checked it out and highly recommended replacing the engine as it appeared to more extensive damage than just a head gasket. There is no warranty coverage.