A snowplow scrapes route 144, Peppers Ferry Blvd near New River Valley Mall in Christiansburg, Via. Thursday Jan. 17, 2013. A winter storm was making its way across the Southeast on Thursday, dumping 4 inches of snow in Mississippi and playing a role in a traffic fatality there, with the system expected to spread across northern Georgia and into the Washington, D.C., area, according to the National Weather Service. (AP Photo/The Roanoke Times, Matt Gentry)
As of 3 p.m., show had already started falling in Chester and Delaware Counties, signaling a possibly messy homebound commute for Philadelphia area drivers.
Up to three inches could fall around the region, with one to two inches most likely, the National Weather Service predicts.
The heaviest snowfall will come in the late afternoon and evening, and should taper off around midnight, according to the National Weather Service.
This week's bitter-cold temperatures make snowfall more hazardous.
"The snow will accumulate immediately," an advisory said. That means slick travel conditions could develop quickly.
"Be prepared for slippery roads and limited visibilities," the weather service said.
The 23 degrees recorded about 2 p.m. is likely to be the high in the city today.
Philadelphians who have grown tired of this week's cold stretch -- the mercury hasn't risen above 27 dgrees since Monday -- can be encouraged by next week's forecast.
On Tuesday, the weater service says, the area can expect a high of 49 degrees. And for Wednesday, the service is predicting low 50s for the region.
Contact Emily Babay at 215-854-2153 or firstname.lastname@example.org. Follow @emilybabay on Twitter.
Contact the Breaking News Desk at 215-854-2443; BreakingNewsDesk@philly.com. Follow @phillynews on Twitter.