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February 19, 2019

Winter storm warning posted for parts of Philly suburbs

Winter weather advisory declared for rest of the region

Weather Snow
Carroll - Snow Police Car Thom Carroll/PhillyVoice

A Philadelphia police car travels south along 2nd Street in Northern Liberties during Thursday's windy snowstorm.

The western suburbs of Philadelphia are under a winter storm warning ahead of Wednesday's snowfall.

Snow accumulations of 2-4 inches and a light glaze of ice are expected in Chester County and western Montgomery County, according to National Weather Service forecasters. The warning will be in effect from 10 a.m. Wednesday to 1 a.m. Thursday.

A winter weather advisory has been declared in Philadelphia, Delaware County, eastern Montgomery County and Lower Bucks County, from 7 a.m. to 9 p.m. Wednesday, forecasters said. Snow accumulations of 2-4 inches and a light glaze of ice are expected across that area as well.

Slippery, hazardous road conditions could impact the evening commute.


MORE NEWS: Philly public, parochial schools closed on Wednesday

Forecasters say they have relatively high confidence the precipitation will begin as snow. With the arrival of a warm front, the precipitation type becomes less certain, but the snow should begin a transition to sleet. Though there is a threat of freezing rain if there is more warming. 

There is considerable uncertainty still with snow and ice accumulations that are dependent on the timing of changeovers.

Here is the 7-day forecast for Philadelphia from the weather service:

Tuesday night: Increasing clouds, with a low around 26. Northwest wind around 5 mph becoming calm in the evening.


MORE ON STORM: Where to find snow day specials in Philly

Wednesday: Snow, mainly after 10 a.m. High near 35. East wind 5 to 8 mph. Chance of precipitation is 90 percent. New snow accumulation of 2 to 4 inches possible.

Wednesday night: Rain and sleet, possibly mixed with freezing rain before 7 p.m., then rain and sleet till 10 p.m., then rain afterwards. Low around 34. East wind 6 to 8 mph. Chance of precipitation is 90 percent. Little or no ice accumulation expected. New sleet accumulation of less than a half inch possible.

Thursday: Rain, mainly before 7 a.m. High near 55. West wind 5 to 11 mph. Chance of precipitation is 80 percent. New precipitation amounts of less than a tenth of an inch possible.

Thursday night: Mostly cloudy, with a low around 33. Northwest wind 6 to 10 mph.

Friday: Partly sunny, with a high near 47.

Friday night: Mostly cloudy, with a low around 32.

Saturday: A chance of rain. Mostly cloudy, with a high near 46. Chance of precipitation is 50 percent.

Saturday night: Rain likely. Cloudy, with a low around 38. Chance of precipitation is 70 percent.

Sunday: Rain likely. Mostly cloudy, with a high near 56. Chance of precipitation is 70 percent.

Sunday night: Mostly cloudy, with a low around 38.

Monday: Mostly sunny, with a high near 50.

Monday night: Mostly clear, with a low around 31.

Tuesday: Mostly sunny, with a high near 46.

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