Similar to earlier this week we are still looking at two main scenarios for the upcoming winter storm. Steadier snowfall is expected to begin Saturday afternoon and evening and continue into Monday. The scenarios will be broken down further in comments on this post.
(1/6) Scenario #1 Heavy snow occurs areawide.

If the colder air stays locked into the region, then heavy snowfall upwards of 8-12" with localized accumulations possibly as high as 18" becomes increasingly likely for much of the area.

(1/12) "What's the forecast for this weekend?" If you recall from yesterday, we had a discussion about long range snowfall forecasting. We discussed the closer you get to an event, the more we can narrow down the amount of potential scenarios that may play out....

https://twitter.com/NWSPittsburgh/status/2013671189047091659

(2/12) Over the last 24 hours, the scenario with no snow has been completely thrown out. Only 2 scenarios remain out of the original 3. Let's call these our new scenario #1 and our new scenario #2. In both scenarios we receive snowfall, but the main question is how much?

With wind chills forecast to drop to between -15°F and -35°F Friday and Saturday, frostbite is possible in as little as 10-30 minutes to exposed skin. If possible, plan to avoid any outdoor exposure. If you must go outside, use extreme caution. Bundle up and cover up. Here are some precautionary actions you can take now to keep you and your family safe:

(1/7) ...so you may have heard that we're going to have a winter storm at the end of the week. How is it going to affect us? Are we going to have a White Christmas? Read below and let's find out.

https://twitter.com/NWSWPC/status/1604947272579665930

❄️(2/7) Very cold and rapidly falling temperatures! A strong cold front will move through our region Friday morning. Temperatures will quickly drop from the upper 30s and lower 40s before dawn to the 10s... by noon! 🥶