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January 30-February 1 Winter Storm Part 2


Hoosier
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5 minutes ago, Sciascia said:

Thanks for the updates. Maybe HRRR wasn’t off it’s rocker this time for the lake effect potential. At least for SE WI, NE IL yet to be fully realized.

It was overdone QPF-wise. Many runs were showing 1.5”+ of liquid equivalent. Models were nearly unanimous in showing the lake enhancement with this one. Lake effect parameters aren’t great, but when you have dendrites falling into the layer it’s a much more efficient process. Most guidance shows 700 mb lift increasing over NE IL later this morning into the afternoon, right when the fetch is most favorable. Likely we’ll see mod to at times heavy snow as a result in the city. ORD also struggling with blowing/drifting snow this morning. 

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2 minutes ago, hawkeye_wx said:

My final storm total is 6.4" (6.1" if I use the snow board total that has compacted since 7pm).  I'm shocked we ended up with that much. :snowing:

Congrats! :snowing:

You guys are about 20" ahead of us now for the season.  You've had over 15" since last weekend.  How much do you have OTG now?  

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We got 2" last night, Maybe another .5" overnight before changing to rain. We'll see what the backside adds to this tonight. 

At the height, with the heaviest bands, it was snowing like crazy. That was around 2000-2030hrs EST Saturday. It was definitely interesting driving to get home. 

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KLOT Update

.UPDATE...
1042 AM CST

Periods of snow will continue this afternoon, before winding down
this evening, especially over northeastern IL and northwestern
IN. With this in mind, we currently do not plan any changes to the
going head lines, though admittedly we may be able to drop our
western counties across north central IL out of the warning in the
next few hours.

Water vapor imagery late this morning shows the center of the
mid-level system now over parts of northern IN. To the north and
northwest of this feature, we will continue to experience
isentropic upglide and even some enhanced areas of mid-level
frontogenesis in associated with the TROWAL airstream. This looks
to be the most impactful over eastern sections of the area
(especially east of the Fox Valley). This in combination with some
lake enhancement over parts of far northeastern IL could result
in additional snow amounts in the 1 to 4 inch range before it
ends areawide this evening. The highest amounts are expected near
the lake, with lighter amounts well inland over northern IL.
Overall, this is likely to push storm totals to around, or even a
bit above, a foot over at least portions of far northeastern IL
into northwestern IN, with amounts closer to the 7 to 10 inch
range over the western suburbs.
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