This is a nice synopsis of the 1998 ice event and the meteorology behind it.
https://www.weather.gov/btv/25th-Anniversary-of-the-Devastating-1998-Ice-Storm-in-the-Northeast
Major ice storm set ups are tenuous at best.
1998 had a low stalled out over the lakes and high pressure in just the right place in Quebec. That’s what allowed a good fetch of gulf moisture to ride into the Arctic air for days.,
Brisk night. 20F with a fresh breeze and some good gusts. I'll probably go test/measure the ice on a local lake on Sunday. Should be several inches of black ice by then.