A snow emergency parking ban that went into effect at 2 p.m. Sunday ended at 5 p.m. Monday, city officials said, after the ebbing of a storm that brought two days of heavy snowfall.

When a snow emergency is declared, parking is prohibited on streets marked “No Parking During Snow Emergency.” Police advise people with cars to check signs carefully and move vehicles from prohibited streets immediately. A car found in violation will be ticketed and towed to one of three impound lots in Cambridge or Somerville and will be returned only with a hefty payment — usually $90 for the first day with an additional $20 for every new day it is left on the lot. The ticket is paid separately.

A list and map of prohibited streets can be viewed by clicking on the Snow Storm Procedures link of the Traffic Department website at cambridgema.gov/traffic.  Some parking garages provide free parking for a limited time during a declared snow emergency.

More information is on the Public Works website at cambridgema.gov/snow.

This post took significant material from a press release. It was updated Dec. 27 with the lifting of the ban.