Carvers Gap Posted December 24, 2020 Share Posted December 24, 2020 Any of our Chattanooga folks seeing a changeover? Link to comment Share on other sites More sharing options...
ShawnEastTN Posted December 24, 2020 Share Posted December 24, 2020 Not in Chattanooga but I am SW of Knoxville on the Roane/Meigs line just reported over on the OBS thread I'm getting some mixing here at 36 degrees. Sent from my SM-G965U using Tapatalk 2 Link to comment Share on other sites More sharing options...
Carvers Gap Posted December 24, 2020 Share Posted December 24, 2020 Just now, ShawnEastTN said: Not in Chattanooga but I am SW of Knoxville on the Roane/Meigs line just reported over on the OBS thread I'm getting some mixing here. Sent from my SM-G965U using Tapatalk Looks like the cold front is pushing off the Plateau right now. Precip is filling in quickly. Link to comment Share on other sites More sharing options...
Carvers Gap Posted December 24, 2020 Share Posted December 24, 2020 Also seeing snow in Birmingham, AL, breaking out as the system swings through. Might be the western solutions are looking decent right now? 4 Link to comment Share on other sites More sharing options...
PowellVolz Posted December 24, 2020 Share Posted December 24, 2020 Also seeing snow in Birmingham, AL, breaking out as the system swings through. Might be the western solutions are looking decent right now?This is the content I crave. 1 Link to comment Share on other sites More sharing options...
BlunderStorm Posted December 24, 2020 Share Posted December 24, 2020 It simply puts a smile on my face knowing some areas that far south are getting some flakes for Christmas. : ) 2 Link to comment Share on other sites More sharing options...
PowellVolz Posted December 24, 2020 Share Posted December 24, 2020 Crossville is below freezing and I’m guessing at 99% humidity it’s probably snowing . Link to comment Share on other sites More sharing options...
Dsty2001 Posted December 24, 2020 Share Posted December 24, 2020 That's right you dirty storm, fill that back side up with moisture! 2 Link to comment Share on other sites More sharing options...
BlunderStorm Posted December 24, 2020 Share Posted December 24, 2020 3 minutes ago, PowellVolz said: Crossville is below freezing and I’m guessing at 99% humidity it’s probably snowing . @Shocker0 How are things looking man? Any luck? Link to comment Share on other sites More sharing options...
PowellVolz Posted December 24, 2020 Share Posted December 24, 2020 Winds are picking up now. Front must be getting close. . Link to comment Share on other sites More sharing options...
Carvers Gap Posted December 24, 2020 Share Posted December 24, 2020 Radar showing that the rn/sn line is approaching the I40-75 split in west Knoxville. Link to comment Share on other sites More sharing options...
Dsty2001 Posted December 24, 2020 Share Posted December 24, 2020 Looking at the radar, very impressed with how the moisture is filling out on the back side Link to comment Share on other sites More sharing options...
PowellVolz Posted December 24, 2020 Share Posted December 24, 2020 https://www.spc.noaa.gov/products/md/2020/mcd1875.gif . 2 Link to comment Share on other sites More sharing options...
PowellVolz Posted December 24, 2020 Share Posted December 24, 2020 . 1 1 Link to comment Share on other sites More sharing options...
McMinnWx Posted December 24, 2020 Share Posted December 24, 2020 Snowing here. 2 Link to comment Share on other sites More sharing options...
BhamParker Posted December 24, 2020 Share Posted December 24, 2020 I am living vicariously through this thread. Pulling hard for all you Tennessee folks. It’s 35 in Birmingham with a stiff and steady wind. No ground truth to the snow on radar unfortunately as of yet. I sure would love to be in a cabin tonight with some elevation. Y’all have a Merry Christmas and reel this one in! I’ll be back for another storm before winter is finished. 9 Link to comment Share on other sites More sharing options...
Gr8estShowOnRockytop Posted December 24, 2020 Share Posted December 24, 2020 Snowing in Cleveland! 2 Link to comment Share on other sites More sharing options...
Scottie16 Posted December 24, 2020 Share Posted December 24, 2020 Heavy Snow in Madisonville 3 Link to comment Share on other sites More sharing options...
PowellVolz Posted December 24, 2020 Share Posted December 24, 2020 . 5 Link to comment Share on other sites More sharing options...
PowellVolz Posted December 24, 2020 Share Posted December 24, 2020 Down to 36 at my house. Should be anytime now. . 2 Link to comment Share on other sites More sharing options...
Carvers Gap Posted December 24, 2020 Share Posted December 24, 2020 For posterity.... National Weather Service Morristown TN 258 PM EST Thu Dec 24 2020 .SHORT TERM (Tonight and Friday)... Obs and webcams around the Cumberland Plateau and eastern KY are showing that the change to snow is beginning. Radar shows precip is blossoming, likely in response to increasing midlevel frontogenetic forcing. Over the next few hours, cold advection will continue to strengthen across the area and the changeover line will push east, with all precip in our area expected to be snow by 00Z. Snow banding will be possible as negative EPV values will coincide with the strong frontogenesis zone over NE TN and SW VA from 23-02Z. A rumble of thunder cannot be ruled out in that area, and snowfall rates near or above 1 inch per hour will be possible. The dynamic forcing will exit our area by midnight, but we will continue to have very steep lapse rates under the mid/upper level closed low that will keep scattered to numerous snow showers going through the night. As this low slows progresses over the area, the chance of snow showers and flurries will persist into Christmas Day for locations north of I- 40, although additional accumulations will be very light and mainly confined to the mountains. The trend of the most recent model runs has been to reduce snow amounts slightly. This forecast package will follow that trend, with just a slight reduction in snow totals for the TN Valley from the previous forecast. Expecting 1-3 inch amounts in the Advisory area, with 3-5 inches in the lower elevations of the warning area, and 5- 10 inches in the higher elevations. The Warning and Advisory areas will not be changed. Travel conditions tonight continue to look very poor as heavy snowfall rates this evening will reduce visibility, and the very cold temperatures coming in tonight will create an icy layer underneath snow-covered roads. Wind chill values tonight will be dangerously low, in the range of - 5 to -15 F, and the Wind Chill Advisory will be continued. 1 Link to comment Share on other sites More sharing options...
PowellVolz Posted December 24, 2020 Share Posted December 24, 2020 . Link to comment Share on other sites More sharing options...
PowellVolz Posted December 24, 2020 Share Posted December 24, 2020 For posterity....National Weather Service Morristown TN258 PM EST Thu Dec 24 2020.SHORT TERM (Tonight and Friday)...Obs and webcams around the Cumberland Plateau and eastern KY areshowing that the change to snow is beginning. Radar shows precip isblossoming, likely in response to increasing midlevel frontogeneticforcing. Over the next few hours, cold advection will continue tostrengthen across the area and the changeover line will push east,with all precip in our area expected to be snow by 00Z. Snow bandingwill be possible as negative EPV values will coincide with thestrong frontogenesis zone over NE TN and SW VA from 23-02Z. A rumbleof thunder cannot be ruled out in that area, and snowfall rates nearor above 1 inch per hour will be possible. The dynamic forcing willexit our area by midnight, but we will continue to have very steeplapse rates under the mid/upper level closed low that will keepscattered to numerous snow showers going through the night. As thislow slows progresses over the area, the chance of snow showers andflurries will persist into Christmas Day for locations north of I-40, although additional accumulations will be very light and mainlyconfined to the mountains.The trend of the most recent model runs has been to reduce snowamounts slightly. This forecast package will follow that trend, withjust a slight reduction in snow totals for the TN Valley from theprevious forecast. Expecting 1-3 inch amounts in the Advisory area,with 3-5 inches in the lower elevations of the warning area, and 5-10 inches in the higher elevations. The Warning and Advisory areaswill not be changed. Travel conditions tonight continue to look verypoor as heavy snowfall rates this evening will reduce visibility,and the very cold temperatures coming in tonight will create an icylayer underneath snow-covered roads.Wind chill values tonight will be dangerously low, in the range of -5 to -15 F, and the Wind Chill Advisory will be continued.Takes them days to adjust when mods are showing an increase in snow but one run of showing a slight decrease in snow amounts gets a full paragraph in the AFD. . 2 4 Link to comment Share on other sites More sharing options...
snowbird1230 Posted December 24, 2020 Share Posted December 24, 2020 Wow..guess I know nothing about modeling.." the trends in most model runs reduces snow amounts ".. What are we doing wrong? Link to comment Share on other sites More sharing options...
PowellVolz Posted December 24, 2020 Share Posted December 24, 2020 Snowing in Farragut . Link to comment Share on other sites More sharing options...
PowellVolz Posted December 24, 2020 Share Posted December 24, 2020 https://twitter.com/nwsmorristown/status/1342204121714028546?s=21. Link to comment Share on other sites More sharing options...
PowellVolz Posted December 24, 2020 Share Posted December 24, 2020 19z HRRR I believe has ticked back up. . Link to comment Share on other sites More sharing options...
PowellVolz Posted December 24, 2020 Share Posted December 24, 2020 Snow in MBY now. 3 Link to comment Share on other sites More sharing options...
PowellVolz Posted December 24, 2020 Share Posted December 24, 2020 My son just now... “daddy check da wadar”. 5 1 Link to comment Share on other sites More sharing options...
Carvers Gap Posted December 24, 2020 Share Posted December 24, 2020 12kNAM has filled in/upped totals in lower elevations of NE TN. 3k NAM is slightly down. SW VA nice increase on the 12k. 2 Link to comment Share on other sites More sharing options...
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