I've been tracking the developing system that will bring a wintry mix our way Friday night and Saturday. While the model data is still in flux, some patterns have persisted, so I thought I would show you my latest forecast for what we can expect on Friday night and Saturday.
First of all, here is a look at the RPM model for Friday afternoon. Our forecast high on Friday is 35-40 degrees, so any precip at the beginning of the event should be rain, as seen by the green areas over the Tri-State.
As the temperature drops below freezing, we'll see a changeover to snow or a sleet/snow mix mainly north of the Ohio river by midnight:
At this point, the window of opportunity for snow is relatively small...about 4-6 hours from late Friday night through early Saturday morning. As winds kick around to the southwest, warmer air will overrun the Tri-State, and we should be back into rain by Saturday morning.
Sub-freezing air will remain in place over central Indiana through Saturday, so everything should come as snow north of US 50 Vincennes-Washington-Loogootee. Here is a look at the forecast accumulations:
It is hard to say how much snow we will actually net out of the system, since early & late rain will likely melt whatever falls during the window of freezing temps. It looks like a light accumulation of 1-2" will remain over central Indiana, so if you must travel north on Saturday, you'll want to check the weather or your 14 First Alert weather app before heading out.
We're still more than 48 hours out, so this forecast may change between now and then. Keep checking this blog and our forecasts on 14News to get the latest info.