The typhoon remained very powerful until September 17 when the storm Catastrophe 's outflow weakened Cause_change_of_strength .

Warm waters and favorable outflow allowed Preventing_or_letting the storm to quickly intensify Cause_change_of_strength to peak maximum sustained winds of 175 km/h ( 110 mph ) on May 15 .

After becoming Becoming disorganized due Causation to wind shear from a nearby upper-level low , Mitch quickly intensified Cause_change_of_strength in response Response to improving Cause_to_make_progress conditions which included Cause_to_be_included warm waters and good outflow .