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.
Another clue: Turn on the heater; often when the head gasket is blown an odor of antifreeze and synthetic rubber will emanate from the heater vents. Many of the symptoms of a blown head gasket can be caused by some other problem in the cooling system, without the head gasket being damaged. Conversely, other problems with the cooling system can cause a blown head gasket and/or warped head.