We have a nice start to the week over the state, as dry, high pressure remains in control today through Wednesday. We are pushing back the arrival of our next batch of rain by about 12 hours or so. Sunshine will be the main player in our weather pattern through the first half of the week, and temps remain normal to above normal for the period.
Clouds will be on the increase from late Wednesday evening through Thursday afternoon. However, we think that most moisture will be delayed in starting until Thursday evening. Once it starts, though, it will run all the way through Friday and in to early Saturday, likely finishing before sunrise Saturday morning. We expect this system to bring all rain, as temps remain above normal through Friday. Rain totals will be from .2”-.7” over 90% of the state. The map at right shows rain potential for the event through Saturday morning.
We are dry for the balance of Saturday and most of Sunday morning and early afternoon. Much colder air will be blasting into the region, taking temps to below normal levels. We have some news for those of you who have been inquiring about the potential for a white Christmas. Precipitation returns for the overnight Sunday night through early Monday. With the cold air in place, we are looking at snow, with the potential for a coating to an inch of accumulation over about 50% of northern and central Indiana. Cold air stays over the region through at least midweek next week, so while it is not a blanket that will dominate our region, technically, some will be able to claim a white Christmas.
We are dry from Monday night through the 27th. Temps stay cold during that time. However, we start to see south winds develop late the 27th, and precipitation arrives for the 28th, coming as rain. We have a very active remainder of the extended period, with at least 3 waves of moisture coming from the 28th through the 2nd. Liquid equivalent precipitation totals can be from half to 1.25” with coverage at 100% of the state. The predominant precipitation type will be rain, but we can see some snow mixing in over northern Indiana, particularly around New Years Eve and New Years day.