News about sightings of ice buildup in the buffalo plane crash

I recently got the news on the internet that just before the crash at the recent buffalo plane crash, there was ice sighted by the crew members of the plane and later to that the plane began to get out of control until it ultimately targeted the unlucky single home nose heading right onto it.

I couldn't understand where ice sighting is being reported to have been built up. Check out this particular news briefing on the internet which is located at this particular address and it is being reported that the ice was visible by the crew members and others onboard.