Feb 15
* Your full, updated, 7-Day Forecast will be published later tonight. 1.) In the long range, credit the Canadian model for being spot on with yesterday’s snow storm. It was…
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Feb 12
With today’s latest forecast model runs in house, we have excellent run-to-run consistency, the only problem is, that run-to-run consistency amongst each model continues to disagree with one another. We…
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Permanent link to this article: https://indywx.com/snowy-weekend-ahead-or-not/
Feb 05
Good morning! After a night complete with impressive snow totals, lightning and thunder reported downtown shortly after 6am, and significant drifting in the open country, things have “calmed” as of this post. That said, the accumulating snow isn’t finished and will rotate back into central Indiana by late morning.
We think an additional 1-2″ of snow will fall with the highlighted area of snow below as it tracks east-northeast. This snow is courtesy of the upper level low moving through the region. Our storm total here at IndyWx.com HQ- 5 miles northwest of Zionsville is at 8.6″ so far.
Permanent link to this article: https://indywx.com/accumulating-snow-isnt-finished/
Feb 04
11:00p update
Snowfall has been falling to “beat the band” the past couple hours across central Indiana. Just within the past 54 minutes we’ve added 1.2″ here at IndyWx.com HQ in southeast Boone County. Storm totals thus far are approaching 7″ as of this report.
While you’ll note the drier push of air invading portions of south-central Indiana, it’s likely accumulating snow continues across central Indiana, especially from the I-70 corridor and points north, becoming more widespread and growing in intensity yet again during the overnight. The culprit? The highlighted upper low which will “carry” accumulating snow east through the night into Wednesday…
6:00p update
A major winter storm is underway and currently producing snowfall rates in excess of 1″ per hour across most of central Indiana. We already have snowfall reports of 4-5″ coming in and those numbers will grow deeper and expand as we progress through the night.
This is a widespread winter storm and impacting a huge chunk of territory. Here’s a look at the radar at 6:30, via Intellicast:
Notice the moisture connection with the Gulf of Mexico. Moisture-rich air continues to stream north into the cold air mass in place and resulting in extreme snowfall rates of 1-2″ per hour…these will continue through the evening before intensity improves late tonight.
The Storm Prediction Center has had to issue a mesoscale discussion to account for the heavy snow ratios. Additionally, don’t be shocked if you hear a rumble or two of thunder tonight in the heavier snow bands.
As we move forward, the dry slot, common with a mature cyclone, and discussed here originally Sunday will move northeast and result in a break in the snow across the region towards the 11 o’clock hour from the southwest.
That said, snow will “fill” back in across central Indiana early Wednesday morning and produce additional accumulations.
Much more later!
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Feb 03
Yet another winter storm is bearing down on the region and will promise a snowy time of things here Tuesday evening into Wednesday.
Surface low pressure will begin to organize over the lower Mississippi River Valley Tuesday morning and move northeast…eventually into PA before a secondary low takes over off the Northeast coast Wednesday. We like our track of the storm below.
This will really be the first storm that’s tapped into Gulf of Mexico moisture since the major winter storm that pounded our area early last month. Moisture will be plentiful with this system and, when combined with the cold air, will lead to significant snow accumulation for most of central Indiana, with significant ice accumulation expected downstate across southern sections of Indiana.
We think snow begins to develop across central Indiana as early as early to mid afternoon Tuesday, but the heaviest of the snow will fall Tuesday night into the wee morning hours Wednesday. In fact, snowfall rates may approach 1″ per hour for a time Tuesday night, especially where the heavy snow bands set up. Just exactly where do these heavy bands of snow develop? It’s a very tough call, but thinking at this juncture would suggest mainly north of Indianapolis. Additionally, latest data suggests a thundersnow report or two may occur tomorrow night within the heavy snow bands. Snow will begin to taper from west to east Wednesday morning, but the open country will have to deal with some blowing and drifting through the day Wednesday as the low departs northeast. We’ll then enjoy a dry and cold couple of days as arctic high pressure builds in before our next winter storm develops for the weekend…
We forecast widespread 4-8″ (localized 8″+ totals possible within convective heavy snow bands) of snow to accumulate by the time all is said and done across central Indiana and our call right now is for the greatest chance of those 8″ reports to fall within the highlighted zone below.
Quick Bullet Point Thoughts:
The dry slot, originally mentioned here Sunday, will likely impact southern and south-central Indiana late Tuesday night into Wednesday morning and will essentially shut off the accumulating snow threat south of I-70 during the wee morning hours Wednesday with some light freezing rain and/ or freezing drizzle glazing over the snow that falls. Meanwhile, accumulating snow will begin to taper Wednesday morning north of I-70. The latest high resolution NAM simulated radar, courtesy of Weatherbell Analytics, shows this well.
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