Good Friday, folks. Your friendly weather dude is a happy, but tired man after the wicked weather of Thursday. The happy part comes because things worked out well with the forecast. The tired comes from the hours I put in during nasty events. There’s no rest for the weary… it gets a whole lot worse as we head into late this weekend and through next week.

Let’s begin with today and roll forward.

Temps to start will be in the single digits and low teens for many areas. Gusty winds will create wind chills of -5 to -10 at times. Leftover flurries and snow showers may be noted across eastern Kentucky. The power of a true upslope flow is often overlooked.

After a windy and chilly Saturday… it’s full steam ahead toward a system rolling in for Sunday. This will be a snow maker… but how much is the question. No matter how much falls where you live… the headline continues to be the life-threatening cold that comes behind it.

A arctic front will be located on top of the state Saturday night and early Sunday. A wave of low pressure will develop along this front and roll northeastward across the region. A band of heavy snow will develop along and west of the track of this system. Here’s where the GFS tracks the low…

GFS

This not going to be a deep area of low pressure and these waves often end up flatter than forecast because the models tend to underplay the eastward push of arctic air behind them. Models like the Canadian and European had a stronger system a few days ago, but are now coming in flatter with the wave.

How far east that front is as the wave works along it will determine how much snow can fall where you live. I suspect we won’t get a complete picture of that until tonight. Several inches will be likely to the left of the track of the low.

Regardless… this type of a setup is prime to produce a line of snow directly behind the arctic front. I have seen similar situations produce what amounts to a squall line of snow and whiteout conditions for a time. Will this one do the same as it rolls across the state? That’s a possibility.

Temps behind this front are going to drop off the charts in a hurry. A 20 to 30 degree temperature drop in an hour or two is likely. Winds will go wild and temps by Monday morning will likely drop below 0 for many. Temps during the day may not move much at all and some could stay below 0 right on through Tuesday morning. I wonder if this can even squeeze out arctic snowflakes during this time?

Gusty winds are going to combine with those temps to give us something we haven’t seen in MANY years. Extreme wind chill readings. Look at the numbers from the GFS…

GFS 2

This is a potentially life-threatening situation taking shape. You should respect the cold potential and take any necessary precautions in advance.

The bitter cold lifts out on Wednesday and is likely to be replaced by a snow or ice system by Wednesday night and Thursday…

GFS 3

I will have updates later today. Stay safe if you’re traveling and take care.