Transmition Fluid Help

[Joebones]

Here's the breakdown
Went and played in the snow with my bronco II i negelected to watch my trans fluid temp and stopped at it had hit 290F So i stopped and checked no nasty brown fluid but it smells burnt. So my question is a hot flush and band adjustment nessasary now?
Things to consider, the trans is one from a 94 explorer, and i have a 20,000btu B&M cooler.
Thanks guys

 

[doorgunner]

I vote---change the fluid first & see it it acts up--