Philadelphia snow: How many inches could fall Monday night?

Rittenhouse Square with snow in winter, Philadelphia, Pennsylvania, USA. (Photo by: Jumping Rocks/Universal Images Group via Getty Images)

It's been almost a month since the Philadelphia area's last snowfall, in a storm that finally snapped the city's nearly 2-year snowless streak!

However, winter weather is making its grand return as a nor'easter roars through the area this week.

When will the potential snowstorm begin?

The transition begins Monday night as rain turns to a wintry mix, then snow for some of the Delaware Valley.

Tuesday has the most potential for snowfall, with the Poconos seeing anywhere from 6 to 10 inches, and 4 to 6 inches falling in the Lehigh Valley

The City of Philadelphia is expected to see a brief snowfall followed by a wintry mix, while mainly rain is set to fall across South Jersey.

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How many inches of snow will fall?

Here are the projected snowfall totals for the Delaware Valley, according to FOX 29's Weather Authority:

  • Northwest suburbs and Berks County: 2-4 inches
  • Philadelphia: 1–2 inches
  • West Chester, Chester: 1–2 inches
  • Wilmington: 1–2 inches
  • Glassboro: Less than an inch

On January 16, Philadelphia saw 1–3 inches accumulate on sidewalks and streets, and a measurement of 1.5 inches at the Philadelphia International Airport.

For the rest of the Delaware Valley, 1–4 inches fell in Pennsylvania and New Jersey, and 2 inches or fewer across Delaware.

How long will the storm last?

A wintry mix and wet snow are expected to last through early Tuesday morning, impacting the commute for most drivers across the region.

In addition to potential snow, damaging wind gusts up to 30 to 40 mph will blow across the region as flooding threatens beaches in New Jersey and Delaware and inland along the Delaware River.

Temperatures will continue to drop after the storm, with temperatures struggling to make it out of the 30s by the end of the week.

Are any watches or warnings in effect?

Winter Storm Warnings, Watches and advisories have already been issued for several counties across Pennsylvania and New Jersey.

A Coastal Flood Watch is also in effect for moderate flooding in New Jersey, Delaware and inland along the Delaware Valley.