We had a similar incident in Raleigh in 2005.
Forecasters predicted light dusting, no sticking. Even as it was sticking they were telling us it wasn’t. Only about 1-1/2” actually fell. and it stuck. It had been cold for a day or two.
People started leaving work around 2 pm. Streets were untreated, no plowing.
The first few folks had no trouble but the snow was compacted down into ice.
By the time officials decided to let schools out most of the road were ice and gridlocked. Too late. Kids slept in school. People spent the night in their cars stuck on the thoroughfares. Eight, twelve hours wasn’t unusual.
This round of weather the schools were closed Tues. with zero precip. coming in until evening.
Officials were overcautious this time.
here in central P.A this happens about every day. Havent missed a day at work in 45 years.