Update: 9:30 a.m., Wedenesday Weather forecast from the National Weather Service: snow and rain.

Christmas Eve, Wednesday Rain. High near 36. South southeast wind around 14 miles per hour, with gusts as high as 18 miles per hour. Chance of precipitation is 100 percent.

Tonight; Rain before 10 p.m., then snow showers. Snow level 600 feet lowering to 0 feet. Low around 32. South wind between 9 and 13 miles per hour. Chance of precipitation is 90 percent. New snow accumulation of less than a half inch possible.

Christmas Day, Thursday Rain and snow showers, mainly after 10 a.m. High near 38. South southeast wind 6 to 8 miles per hour becoming north northwest. Chance of precipitation is 80 percent. New snow accumulation of less than a half inch possible.

Christmas night; A chance of rain and snow showers before 10 p.m., then a chance of snow showers. Cloudy, with a low around 28. North northwest wind around 10 miles per hour, becoming southwest. Chance of precipitation is 50 percent.

Rain is expected Friday through Tuesday, with highs in the mid 40's and lows in the mid 30's.

Update: 8:45 a.m., Wednesday Today the Seattle Department of Transportation is plowing, de-icing and sanding inbound routes around the city. Three of those trucks are devoted solely to the West Seattle Bridge and the Alaskan Way Viaduct.

The department advises that motorists drive slowly as they move around the city for work and holiday shopping. Arterials are plowed with passable road conditions.

Currently, 18 trucks are plowing, sanding and de-icing city streets.

The city's decision to not use rock salt to de-ice the streets due to its environmentally unfriendly impact to to the Puget Sound, has been a controversial one stranding many people at home as many roads remain impassable.

Crews have been employing sand and de-icer to clear streets during the snowstorm.

Allied Waste/Republic Services is not running any residential service in Seattle this Christmas Eve and just 50 percent of the commercial routes are running.

Update: 5:15 p.m., Tuesday Due to still-icy streets in many areas and the possibility of more snow overnight, Metro will be operating approximately half of its regular weekday service on Wednesday, Dec. 24.