John1122 Posted February 27, 2020 Author Share Posted February 27, 2020 Pretty good NW flow snow going right now. Temp is 28, hopefully I can keep this going until morning. May squeeze out an inch. 1 Link to comment Share on other sites More sharing options...
Holston_River_Rambler Posted February 27, 2020 Share Posted February 27, 2020 Got a nice dusting on some grass and the deck, but that's about it here. 1 Link to comment Share on other sites More sharing options...
John1122 Posted February 27, 2020 Author Share Posted February 27, 2020 3/4th inch here. 6 Link to comment Share on other sites More sharing options...
Daniel Boone Posted February 27, 2020 Share Posted February 27, 2020 Measured 1.6 inches here. More in some grassy areas. 5 Link to comment Share on other sites More sharing options...
John1122 Posted February 27, 2020 Author Share Posted February 27, 2020 Models look like they are keying on the Southern Plateau for a bullseye spot with the next clipper. Outside the Eastern mountains that area shows up as the winner across 6z/0z model runs. 1 Link to comment Share on other sites More sharing options...
Runman292 Posted February 27, 2020 Share Posted February 27, 2020 2 hours ago, John1122 said: 3/4th inch here. I’ve been staying over at my parents’ place in southern Campbell county, and all we got were patches of a very light dusting. 1 Link to comment Share on other sites More sharing options...
John1122 Posted February 27, 2020 Author Share Posted February 27, 2020 3 minutes ago, Runman292 said: I’ve been staying over at my parents’ place in southern Campbell county, and all we got were patches of a very light dusting. Flow snow is fickle. Elevation helped a lot last night too. 1 Link to comment Share on other sites More sharing options...
Carvers Gap Posted February 27, 2020 Share Posted February 27, 2020 12z Euro looked a bit more "robust" with the systems beginning tomorrow afternoon into Saturday. Thought 12z had a little bit of an uptick on a couple of models. Nothing major, but a trend worth watching. Got .5-.75" this AM in west Kingsport. Woke up and looked out the window and thought fog had rolled in. +SN was pouring down. Busses got caught in route. Rest of Kingsport wasn't as bad with just a light dusting. West of I-26 got some nice snow for about 20 mins. Hardest I have seen it snow in a long time. It was ripping. 4 Link to comment Share on other sites More sharing options...
nrgjeff Posted February 27, 2020 Share Posted February 27, 2020 Upper Plateau and points north of I-40 look good for the two waves coming through from Friday morning through Friday night. Diurnal timing will play a role with accumulation. Plateau should have no problem accumulating, temps below freezing many hours. Valley I-40 north will battle temps more. Knoxvegas maybe. Morristown I'd think a little. TRI good. Nashvegas is the real craps table. I'm afraid Huntsville and Chattanooga are relegated to the cheering section again. Maybe snow showers, but I really doubt stick. My head is back to default fade KCHA. My heart is still stuck on 8 Feb. 3 1 Link to comment Share on other sites More sharing options...
John1122 Posted February 28, 2020 Author Share Posted February 28, 2020 OHX seems to be all in for their Eastern counties. WWA for 1-2 inches plus some more Friday night with a 3rd clipper. MRX less enthusiastic. 1 Link to comment Share on other sites More sharing options...
Daniel Boone Posted February 28, 2020 Share Posted February 28, 2020 CMC did best for my area with this last snowfall. Others underforecasted amounts, per usual. Lee County should have been included in the wwa as should we this next go around as should several others with it imo. 1 Link to comment Share on other sites More sharing options...
John1122 Posted February 28, 2020 Author Share Posted February 28, 2020 Sunrise this morning. I love walking on snowy mornings. 8 Link to comment Share on other sites More sharing options...
John1122 Posted February 28, 2020 Author Share Posted February 28, 2020 On the 00z HRRR 700-500mb Lapse rates look to be -7 to -8 in the area into tomorrow. Not absolutely unstable like -10 or more but enough to be considered conditionally unstable. HRRR is .5 to 2 inches over a good part of the Eastern Rim and other areas eastward. The 3+ lollipop shows up in western Cumberland County. The mountains go for 4-8 inches. 2 Link to comment Share on other sites More sharing options...
John1122 Posted February 28, 2020 Author Share Posted February 28, 2020 Speaking earlier about location during upslope, LeConte is a few miles from Newfound Gap but picked up 7 inches of snow into this morning. Newfound Gap only got an inch. Link to comment Share on other sites More sharing options...
Holston_River_Rambler Posted February 28, 2020 Share Posted February 28, 2020 Radar looks promising upstream if it all holds together: 2 Link to comment Share on other sites More sharing options...
John1122 Posted February 28, 2020 Author Share Posted February 28, 2020 One difference from tonight into tomorrow vs yesterday, we had been above freezing and had to work our way below freezing on a warmer ground. No worries about that tonight. Link to comment Share on other sites More sharing options...
Icy Hot Posted February 28, 2020 Share Posted February 28, 2020 Radar not impressive at all this morning. Link to comment Share on other sites More sharing options...
John1122 Posted February 28, 2020 Author Share Posted February 28, 2020 1 hour ago, Icy Hot said: Radar not impressive at all this morning. Looks like the best shot of anything sticking lower that 1500ft will be tonight after dark with the second wave. Link to comment Share on other sites More sharing options...
Holston_River_Rambler Posted February 28, 2020 Share Posted February 28, 2020 Kinda looks like it is picking up in a band south of Nashville and just around the radar site: Link to comment Share on other sites More sharing options...
John1122 Posted February 28, 2020 Author Share Posted February 28, 2020 Having some virga here. Maybe a flurry or two. Link to comment Share on other sites More sharing options...
John1122 Posted February 28, 2020 Author Share Posted February 28, 2020 MRX actually added my area to the WWA but for elevations higher than me. Holding at 31 degrees up from 25 as the atmosphere tries to saturate. The ground is nicely frozen after being sub freezing for the last 12 hours. Just need to see the moisture actually reach the surface. Link to comment Share on other sites More sharing options...
bearman Posted February 28, 2020 Share Posted February 28, 2020 Looking at MRX radar is not encouraging right now. Link to comment Share on other sites More sharing options...
John1122 Posted February 28, 2020 Author Share Posted February 28, 2020 2 minutes ago, bearman said: Looking at MRX radar is not encouraging right now. Looks like decent returns in middle Tennessee, just not sure of the ground truth to them right now. They should be in Crossville next update. They are moving almost due East so may he good if they don't get downsloped off the Plateau and temps cooperate in the central valley. Link to comment Share on other sites More sharing options...
John1122 Posted February 28, 2020 Author Share Posted February 28, 2020 Saw photos from the southern Plateau, big flakes and white ground pretty quickly. Link to comment Share on other sites More sharing options...
Chattownsnow Posted February 28, 2020 Share Posted February 28, 2020 Light snow/flurries between red bank and Chattanooga right now. Decent snow shower now actually 2 Link to comment Share on other sites More sharing options...
bearman Posted February 28, 2020 Share Posted February 28, 2020 Unfortunately the sun is shining brightly in Knoxville diminishing the chance that anything will stick. Link to comment Share on other sites More sharing options...
bearman Posted February 28, 2020 Share Posted February 28, 2020 Snowing hard in Crossville and the ground is turning white. 2 Link to comment Share on other sites More sharing options...
nrgjeff Posted February 28, 2020 Share Posted February 28, 2020 The last two systems illustrate the importance of cold air and surface, I know kind of duh, but these last two systems really accentuate it. I'll add cold air in place vs JIT junk. I observed first flakes in Downtown Chattanooga around 8:30 Eastern, but not doing much attm. Actually I observed driver flakes on the way in too, but that's another topic... 1 1 Link to comment Share on other sites More sharing options...
Holston_River_Rambler Posted February 28, 2020 Share Posted February 28, 2020 Absolutely pouring here now 1 Link to comment Share on other sites More sharing options...
Holston_River_Rambler Posted February 28, 2020 Share Posted February 28, 2020 Big factors here are temps and flake size. Drove out to do a run at Frozen head. Snow was making it down to about 1800' around 830 AM: Hit pixie dust about 1600' Finally hit some better snow, as I drove back home, but flake size makes the difference bewteen this: Or this: 1 Link to comment Share on other sites More sharing options...
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