UPDATE: Winter returns with chance for sticking snow

10:25PM UPDATE:  Evening computer models are beginning to come in and on initial look, the models seem to be adjusting their projected track of the clipper.

Projected Storm Tracks: Orange/Green lines from Saturday AM computer models | Yellow/pink lines from Saturday PM computer models

This would suggest the rain/snow line would be further north than what earlier computer model runs suggested.  I'm not terribly surprised by this as the evening computer model runs are finally able to sample the storm over land.  As I mentioned earlier in the blog, once the energy is over land computer models will be able to better sample the atmosphere.  Oftentimes they will make adjustments to their projected tracks.

I will be interested to see how the Sunday morning computer model runs do as the energy should begin to move out of the Rocky Mountains.

PREVIOUS POST FROM 8:35PM: A Freeze Warning continues for southern counties of the CBS4 viewing area (Greene, Jackson, Jennings, and Lawrence).  The warning is in effect until 1pm Sunday.

With clear skies overnight temperatures will drop in to the teens to near 20° early Sunday morning.

Forecast low temperatures Sunday.

Expect to have sunny skies Sunday morning.  I expect mid to high level clouds to arrive from the northwest by mid-afternoon.  That should turn skies partly sunny.

Forecast high temperatures Sunday.

Temperatures will reach the middle to upper 30°s.  Winds will remain light until late afternoon/early evening.

ALBERTA CLIPPER DIVING TOWARDS MIDWEST

We are watching upper-level energy arriving in southwest Canada this evening.  Computer models suggest this will develop in to an Alberta Clipper and dive southeast towards the Midwest in the next 24-36 hours.

Latest data suggests the clipper will bring a chance for snow to areas along and north of I-70, rain/snow to the area south of I-70 and north of State Road 46, and mainly rain south of State Road 46.

Computer model snowfall accumulation projections for Indianapolis through 7am Tuesday. -- NOT A FORECAST

An early look at snowfall projection from various computer models shows a range from 1" to 3" of snow falling in Indianapolis Monday morning through Tuesday morning.

To be honest, I think it is a little early to be able to forecast an accurate snowfall amount with this system.  The energy is just beginning to move onshore this evening and computer models have not had a chance to sample the energy while overland.  I think tonight's computer model runs and Sunday morning's computer model runs will have a better grasp of what we can expect from the system.

What we can say with confidence is the potential for a measurable snow Monday in to Tuesday remains.  The Monday afternoon/evening may get messy as snow could be falling during the commute home.  Stay tuned to forecasts through the rest of the weekend!

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