First Call Forecast For Tuesday-Wednesday Winter Storm

First Call Forecast For Tuesday-Wednesday Winter Storm

Before we get into the details about Tuesday Evening into Wednesday, a disturbance is still projected to move through the state Tonight and into Tomorrow Morning bringing with it a mix of rain and snow. Our call from last night still stands with this system. If you missed our call, click here>>>https://paweatheraction.com/light-snow-sunday-night-wintry-mix-arrives-mid-week

As for the bigger storm potential, we are tracking a Winter Storm set to begin Tuesday Evening and lasting through Wednesday Morning. A low pressure system will develop in the South and track its way Northward before transferring its energy into a coastal low. Over the last 36-48 hours, guidance has been steadily trending colder and colder for this system. While this still won’t be an all snow event for most of us, this will lead to a longer duration of snow versus rain for many locations.

For a visual on this, below is the Canadian Model valid 7 PM Tuesday Evening.

cmcmc
The further North you are in PA and the higher your elevation is will increase your chances of receiving accumulating snowfall. Many low elevated valleys will receive a slushy mix or just a cold rain.

It is projected as this storm wraps up and the precipitation weakens, most locations end in the form of light rain.

Timing: Tuesday Evening into Wednesday Morning

MAP FORECAST FOR WINTER STORM TUESDAY INTO WEDNESDAY

Area A: 4 to 6 inches of heavy wet snow is possible, ending as a brief period of drizzle. Isolated power outages would be possible in these areas as the snow would weigh on power lines and tree limbs. 

Area B: 2 to 4 inches of wet snow is possible, ending as a period of light rain. 

Area C: 1 to 2 inches of wet snow is possible before changing to a period of rain. 

Area D: Up to 1 inch of wet snow is possible before changing to rain.

Area E: Up to a coating of wet snow is possible before changing to rain.

g227

For future updates regarding this Winter Storm and the rest of this Winter make sure you have us liked on Facebook by clicking here>>>PA Weather Action on Facebook!

Also remember to share the forecast below with your friends and family. Stay safe!

Josh Adams is the founder and lead forecaster of Pennsylvania Weather Action, a regional forecasting site he launched in 2015. With over a decade of experience analyzing weather patterns across Pennsylvania, his forecasts have reached millions of readers throughout the state. Josh specializes in Pennsylvania’s complex microclimates and terrain-driven weather patterns, providing detailed coverage of severe thunderstorms, winter storms, and flooding events. His forecasting focuses on delivering precise, timely information to help Pennsylvanians stay informed and prepared during impactful weather. Last Updated: March 10, 2026