How long did the 1999 Bridge Creek-Moore tornado last?

How long did the 1999 Bridge Creek-Moore tornado last? It lasted 1 hour, 25 minutes.

The tornado formed at about 6:23 p.m. CDT on May 3, 1999, and dissipated around 7:48 p.m. That gives it an estimated lifetime of 85 minutes, or one hour and 25 minutes. During that time, it traveled about 38 miles across central Oklahoma.

Its long track carried it from near Amber through Bridge Creek and Moore, then into southeastern Oklahoma City, Del City, and Midwest City. The storm repeatedly fluctuated in intensity, reaching the former F5 rating in multiple areas and producing catastrophic damage along portions of its route.

Duration is not the same as time spent at peak intensity. The tornado was violent for much of its life, but its strength varied as it moved through different environments. It also became rain-wrapped, making its circulation difficult to see. The event caused 36 direct fatalities, five additional indirect deaths, and approximately $1 billion in damage in 1999 dollars.