After a day of spring-like warmth and thunder, Old Man Winter will stage a comeback Wednesday. Let’s get right to our snowfall forecast:
Timing:
Snow will overspread north-central parts of the state Wednesday morning. Most of this “initial round” of snow will remain north of the city, itself.
It’s not until we push into Wednesday afternoon and evening that more widespread snow will move through central Indiana, including Indianapolis.
Periods of moderate to locally heavy snow can be expected through central and north-central parts of the state Wednesday evening, especially between the hours of 3p-7p. This will be a wet snow and though the snowfall intensity should be impressive at times, it’ll have a hard time accumulating from what it otherwise could be if the ground was cold. With that said, we do anticipate snowfall rates to overcome initially marginally cold air and “warm” surface temperatures. Our forecast calls for a dusting to 1″ for the city, itself, increasing to 1″-3″ north of the city- encompassing most of north-central Indiana. Roadways will likely become slushy with wet snow accumulation Wednesday evening.
Brief Shot Of Arctic Air:
Temperatures will fall into the middle-upper 10s for most of central Indiana by Thursday morning with highs Thursday only topping out in the lower to middle 20s. The arctic air won’t stick around as we zoom back into the lower 40s Friday after a very cold start (upper 10s).
However the cold air won’t last and milder times will return by the second half of the weekend. This back and forth “tug of war” type regime will remain as cold and warmth (relative to average) continue to battle over the upcoming couple weeks. The latest European ensemble shows this nicely.
This also favors a rather active pattern and confidence is high on a wetter than average period upcoming over the next couple weeks. See the GFS ensembles support this idea. A couple strong storms are also possible Tuesday.
Unfortunately for snow lovers, the majority of significant moisture should fall as rain. Best snow chances appear to come with “backlash” wrap around snow showers and squalls Tuesday night into Wednesday morning. Accumulating snow is possible, but most amounts should be light. We’ll keep an eye on it.
Longer-term, the fight continues deeper into the month. As 
2.) What at one time looked to be a significant weekend storm now may not even deliver any precipitation at all to the region. A flurry is possible, but most should remain precipitation-free this weekend. Expect a gusty southwest wind developing SB Sunday. Highs around freezing Saturday will zoom into the middle 40s Sunday. Lows Saturday morning in the middle 10s will rise into the upper 20s to around 30 Sunday morning.
3.) A more significant storm system will cut for the Great Lakes early next week and this will deliver gusty showers and embedded thunderstorms. A couple of stronger storms aren’t out of the question. Locally heavy rains can be expected, including amounts of 1″-1.5″ (locally heavier totals).
4.) Cold air will rush back into the region behind the storm and snow showers and squalls are likely by Wednesday.
5.) Longer-term, a real fight is developing on the overall direction we’re heading as February evolves. Analog methods and teleconnections (shown below) would yield bullish cold signals and give hope to winter enthusiasts. However, modeling isn’t in agreement on the wintry ideas. In fact, some modeling is very spring-like as mid-Feb nears. Stay tuned as we try and iron out the details this weekend. Updates will come.
