When It Snows in the District Response to Wintry Weather Conditions Storm Level I Snow up to 2 Inches (Winter Weather Advisory) Snowfall of less than 2 inches is not plowed. Major roads and residential streets are continuously treated with salt during snowfall and afterwards, as necessary. Salting is completed on all streets within 4 hours (major roads) to 8 hours (residential streets) after the end of each storm. Quality assurance teams are dispatched to each ward during the storm to assess needs. Trash and recycling collection remains on schedule. Metrobus operations are normal. Service requests for additional street salting will not be taken until 8 hours following the end of the snowfall. Please give us time to cover our routes. Storm Level II 2-4 Inches of Snow (Winter Weather Advisory) Salting begins on major roads and residential streets as soon as snow starts falling. Plowing begins after an accumulation of more than 2 inches. Plowing to bare pavement is completed on main roads within 6 hours following the end of snowfall. Residential streets will be made passable within 12 hours following the end of the storm, though may not be plowed to bare pavement. Quality assurance teams are dispatched to each ward during the storm to assess needs. Trash and recycling service may be delayed but will be collected on the scheduled day. Metrobus operations are normal. Service requests for additional street salting or plowing will not be taken until 12 hours after the end of the storm. Please give us time to cover our routes.