1990 Jeep Wrangler Sreeching noise upon start of movement

When I start my Jeep when it is cold, it behaves normal until I engage the clutch and start to move at which point there is a load screeching nosie like a belt or a bearing.
I dressed the belts and checked tightness so I doubt it is those.
Would it possibly be the throw out bearing on the clutch or do you think something else?
When I push the clutch in and rev up the rpm's, I can get the noise to stop and then it rarely does it again until the next cold start.
It seems to be getting worse with time.

Thoughts?