PowellVolz

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My point and click went from 2-4” to 3-5” .

Looks like MRX went up a little around Knoxville .

If RadarScope is handling this, the transition has really accelerated over the past hour. .

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MRX just did a YouTube video saying a boundary will setup just west of 75 and east of that line will be convective snow bands. .

About 30 min ago .

https://www.spc.noaa.gov/products/md/md0023.html .

Good chance the Plateau holds that Arctic air up some. Maybe since there’s a wave hooked to it, the front will maintain speed? .

Very similar to Christmas Eve last year. Rates overcame ground temps quickly .

I never like it when MRX does this. Kiss of death .

MRX goes WSW east of 75 .

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It’s sad that we can remember a non historic snow that happened 9 years ago. We are due .

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Temp? .

I’m 5 miles east of 75 so usually it doesn’t effect me. I’m also at 1300’ so if get a little bit of elevation .

Warm air in the valley gets banked up against the plateau? We had a situation several years ago where cold air north and west of Knoxville got trapped up against the plateau in the valley and WAA never won out. I was supposed to get a couple of inches from a front end thump but ended up with 8” because it never changed over. .

Agree with you. Rates will overcome BL issues .

Well I could see that boundary you drew in blue but I thought maybe that was some kind of inverted trough on top of the mountains. .

Clearing is rapidly moving north across the State line now. .

It definitely feels warmer in Knoxville. Wonder where the WF is? .

Are you talking about in that area out west where the clouds are moving NW in that clearing area? .

Be nice if this tracked a little north of Atlanta .

Here we go…. “...D7-8/Sat-Sun - Portions of the Southeast... The last several runs of the ECMWF and GFS show advancement of the western CONUS upper-level trough which moves eastward across the CONUS as a positively tilted trough. This would be higher amplitude than any of the shortwave troughs which are forecast to cross the Plains this week. An amplified mid-level trough interacting with a broad warm sector with mid to upper 60s dewpoints could lead to a significant severe-weather episode. There are still considerable differences in the timing and amplitude of this advancing upper-level trough, which can be seen comparing not only the operational long-range model suite, but also the varying solutions within the GEFS. However, despite these differences, virtually all the members show the potential for a severe weather event sometime on Saturday or Sunday. The lack of run-to-run model consistency and timing differences are too great to include probabilities at this time. However, if these uncertainties become more clear in the coming days, probabilities may need to be added” .