One last blast of winter on Monday dropped a couple of inches of snow on the city and caused numerous accidents and other issues on the evening commute.

Snow began in most parts of the city in the early evening, with huge flakes falling. The National Weather Service issued a winter weather advisory, warning of snow-covered roads, slippery conditions and limited visibility.

That didn’t help drivers who had gotten caught in what most expected to be just a dusting but which turned out to be closer to 2 inches.

At 6:19 p.m., a jackknifed tractor-trailer closed all westbound lanes of Route 58 just before the Godwin Boulevard exit. There were no injuries, according to a city press release.

Later in the evening, a tree fell across Route 58 eastbound east of downtown and blocked traffic temporarily before crews were able to clear it.

From 6 to 10 p.m. Monday, 57 weather-related accidents were reported in Suffolk, including several with minor injuries, city spokeswoman Diana Klink wrote in an email.

Public Works had deployed staff to deal with the unexpected event, Klink wrote. Crews were unable to pre-treat bridges and overpasses, but two dozen snowplows and salt and sand spreaders had hit the streets Monday evening to treat limited areas, focusing on bridges, elevated surfaces and primary roadways, Klink said.

“Snow in many areas has been deep enough to actually start plowing,” Klink wrote.

“There’s a storm off the mid-Atlantic coast that’s intensifying,” meteorologist Tim Gingrich said. “The northern winds that are coming in behind this system are causing this precipitation.”

Gingrich said the storm was expected to move off the coast by 10 or 11 p.m. Monday.

The high temperature on Tuesday is expected to be 49 degrees, followed by 47 degrees on Wednesday. Highs in the mid-50s the rest of the week will then be topped off by a high of 60 on Sunday.