Layman Posted yesterday at 05:13 PM Share Posted yesterday at 05:13 PM 8 minutes ago, dendrite said: Sorta. You can magnify the crystals to see if the hexagonal crystalline structures are still in tact of if they’re broken up into pieces. Imagine the crystal formations on this site https://www.snowcrystals.com and then just seeing fractured pieces in blowing and drifting snow. There’s a reason why those drifts get dense and hard packed. 3 minutes ago, CoastalWx said: So a simple way to think about it would be comparing various events that had light winds vs higher winds. Easier for me here on the coast as most storms have strong winds here. But recall those events that had light winds and good snow growth. You probably remember how it looked after the snow ended with the crystalline structure visible and a fluffy pack that felt like walking on a cloud as you stepped into it. Now think of some of the events that had wind. Sure the snow was dry, but when you step into the pack, it's noticeably denser. It's not the density of heavy wet snow, but it has a little girth to it. We have that here all the time. The wind can pack down the snow by pummeling the crystalline structures. It's rare to have a fluff bomb on light winds, but it does happen. Helpful and easy to understand explanations from you both. I actually have seen that before and know what you mean. I'm not sure if I've noticeably witnessed it in real-time but am thinking I likely have seeing flakes land on my gloved hand and breaking up before. Please pardon my fuzzy memory, it's been a few years since we've gotten a meaningful storm here Link to comment Share on other sites More sharing options...
dendrite Posted yesterday at 05:22 PM Share Posted yesterday at 05:22 PM This may be the best video I’ve seen explaining snow crystal microphysics. Good stuff. 4 2 Link to comment Share on other sites More sharing options...
Layman Posted yesterday at 05:40 PM Share Posted yesterday at 05:40 PM 16 minutes ago, dendrite said: This may be the best video I’ve seen explaining snow crystal microphysics. Good stuff. That was interesting - thanks for sharing. Link to comment Share on other sites More sharing options...
mreaves Posted yesterday at 05:48 PM Share Posted yesterday at 05:48 PM BTV has bumped us up a tad bit. 2 Link to comment Share on other sites More sharing options...
JACKASS Posted 23 hours ago Share Posted 23 hours ago Broken Snowflakes, I like it! Link to comment Share on other sites More sharing options...
moneypitmike Posted 23 hours ago Share Posted 23 hours ago 2 hours ago, ineedsnow said: Hoping for another inch or so but still have some snow left from the other day.. either way looks like a white Christmas So's my wife. 3 Link to comment Share on other sites More sharing options...
das Posted 23 hours ago Share Posted 23 hours ago 1 hour ago, dendrite said: Sorta. You can magnify the crystals to see if the hexagonal crystalline structures are still in tact of if they’re broken up into pieces. Imagine the crystal formations on this site https://www.snowcrystals.com and then just seeing fractured pieces in blowing and drifting snow. There’s a reason why those drifts get dense and hard packed. This conversation got me curious and looking around. There is a ton of peer-reviewed research on the cloud physics of snowflake generation, on decent transformations like riming and even the metamorphosis of snow ice crystals in snowpack on the ground but very, very little about wind-affected transformations as it falls. I only found one hit in the intro of one paper but it was a minimal reference: "Snowflakes falling on the Earth's surface have a mono-crystalline, idiomorphic form (dendrite, for example) or polycrystalline elements with crystals ranging in sizes from 0.1-0.4 mm [1] at very low air temperatures (-50°C - -70°C) to several millimetres at air temperature around 0°C. Depending on the weather conditions (air temperature, moisture, wind velocity) the snowpack is formed under windless conditions from lamellar snowflakes with an initial snow density of 10-80 kgm -3 and idiomorphic contours, or from snowflake 0.2-0.3mm sized fragments formed under windy conditions with a density of about 200- 300 kgm -3." Guseva-Lozinski, E. (1999). Transformation of the snow crystal to a particle of ice. In: Hutter, K., Wang, Y., Beer, H. (eds) Advances in Cold-Region Thermal Engineering and Sciences. Lecture Notes in Physics, vol 533. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0104196 Seems like an interesting topic for an enterprising doctoral candidate. 1 Link to comment Share on other sites More sharing options...
OceanStWx Posted 22 hours ago Share Posted 22 hours ago 27 minutes ago, das said: This conversation got me curious and looking around. There is a ton of peer-reviewed research on the cloud physics of snowflake generation, on decent transformations like riming and even the metamorphosis of snow ice crystals in snowpack on the ground but very, very little about wind-affected transformations as it falls. I only found one hit in the intro of one paper but it was a minimal reference: "Snowflakes falling on the Earth's surface have a mono-crystalline, idiomorphic form (dendrite, for example) or polycrystalline elements with crystals ranging in sizes from 0.1-0.4 mm [1] at very low air temperatures (-50°C - -70°C) to several millimetres at air temperature around 0°C. Depending on the weather conditions (air temperature, moisture, wind velocity) the snowpack is formed under windless conditions from lamellar snowflakes with an initial snow density of 10-80 kgm -3 and idiomorphic contours, or from snowflake 0.2-0.3mm sized fragments formed under windy conditions with a density of about 200- 300 kgm -3." Guseva-Lozinski, E. (1999). Transformation of the snow crystal to a particle of ice. In: Hutter, K., Wang, Y., Beer, H. (eds) Advances in Cold-Region Thermal Engineering and Sciences. Lecture Notes in Physics, vol 533. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0104196 Seems like an interesting topic for an enterprising doctoral candidate. I've also always tended to think about it in terms of aggregates. It's pretty rare to have pure dendrites falling without some clumping, sticking, interlocking, etc. The wind breaks those aggregates apart. But the aggregates are forming down here, not up in the DGZ. 2 Link to comment Share on other sites More sharing options...
tamarack Posted 22 hours ago Share Posted 22 hours ago The 2 big storms of December 2003 had very different characteristics here, and I think that dendrite growth might've been why. Neither storm had any mixing. 12/6 20 5 0.43 6.0 12/7 22 18 1.20 18.0 Total: 1.63" 24.0" Ratio 14.7 Very windy (est 25G40), massive drifting 12/14 15 -15 0.02 0.2 12/15 22 11 1.53 13.0 Total: 1.55" 13.2" Ratio 8.5 Breezy (est 15-25), little drifting Link to comment Share on other sites More sharing options...
mreaves Posted 22 hours ago Share Posted 22 hours ago @powderfreakhas been bumped up to a Winter Storm Warning 3 1 Link to comment Share on other sites More sharing options...
moneypitmike Posted 21 hours ago Share Posted 21 hours ago Reads like GYX will be hoisting advisories. Advisory type snows are expected with this system with an area of 3- 5 inches of snow over northern and eastern portions of our forecast area. Would go slightly higher in some areas however the track of the H8 and H7 low to our north is not favorable at this time. 2 Link to comment Share on other sites More sharing options...
powderfreak Posted 21 hours ago Share Posted 21 hours ago 42 minutes ago, mreaves said: @powderfreakhas been bumped up to a Winter Storm Warning I can feel people’s excitement lol. I like 4-8” personally. 1 3 Link to comment Share on other sites More sharing options...
dryslot Posted 21 hours ago Share Posted 21 hours ago GYX with a bump up for Mtns and Midcoast especially DE ME, Congrats Eastport. 5 Link to comment Share on other sites More sharing options...
moneypitmike Posted 21 hours ago Share Posted 21 hours ago 4 minutes ago, dryslot said: GYX with a bump up for Mtns and Midcoast especially DE ME, Congrats Eastport. Here's the GYX update. Pit2 with the 4-6. 3 Link to comment Share on other sites More sharing options...
mreaves Posted 20 hours ago Share Posted 20 hours ago 1 hour ago, powderfreak said: I can feel people’s excitement lol. I like 4-8” personally. BTV agrees. 2 Link to comment Share on other sites More sharing options...
ineedsnow Posted 20 hours ago Share Posted 20 hours ago 1 hour ago, powderfreak said: I can feel people’s excitement lol. I like 4-8” personally. Link to comment Share on other sites More sharing options...
OceanStWx Posted 20 hours ago Share Posted 20 hours ago 1 hour ago, powderfreak said: I can feel people’s excitement lol. I like 4-8” personally. Scooter is sitting down with his kids tonight and explaining that there are snow starved children in northern New England that need the snow more than they do. 15 Link to comment Share on other sites More sharing options...
tamarack Posted 20 hours ago Share Posted 20 hours ago 1 hour ago, dryslot said: GYX with a bump up for Mtns and Midcoast especially DE ME, Congrats Eastport. Two days ago, the Rt 2 corridor was looking at 2-3"; now that's doubled. 4-5" of 15-20 to 1 fluff would be very nice, just right to pack into the remaining ruts from the 2" RA on 12/11-12. 2 Link to comment Share on other sites More sharing options...
OceanStWx Posted 20 hours ago Share Posted 20 hours ago 1 minute ago, tamarack said: Two days ago, the Rt 2 corridor was looking at 2-3"; now that's doubled. 4-5" of 15-20 to 1 fluff would be very nice, just right to pack into the remaining ruts from the 2" RA on 12/11-12. I wouldn't call the lift strong be any means, but the DGZ or near-DGZ is deep (which helps because the core of the DGZ is quite high in the atmosphere despite the surface air mass). 2 Link to comment Share on other sites More sharing options...
HoarfrostHubb Posted 19 hours ago Share Posted 19 hours ago 54 minutes ago, tamarack said: Two days ago, the Rt 2 corridor was looking at 2-3"; now that's doubled. 4-5" of 15-20 to 1 fluff would be very nice, just right to pack into the remaining ruts from the 2" RA on 12/11-12. I wish the other Rte 2 corridor was getting some. Enjoy it! 2 1 Link to comment Share on other sites More sharing options...
Chrisrotary12 Posted 18 hours ago Share Posted 18 hours ago On 12/20/2024 at 9:54 PM, 512high said: Yes! (3) Maybe we can get to 2” on the year tomorrow. 1 Link to comment Share on other sites More sharing options...
dryslot Posted 18 hours ago Share Posted 18 hours ago 1 hour ago, OceanStWx said: Scooter is sitting down with his kids tonight and explaining that there are snow starved children in northern New England that need the snow more than they do. Then he gets up, Opens the window, And tosses the tree and all the gifts into the driveway and drives over them, Over and over again. 1 Link to comment Share on other sites More sharing options...
CoastalWx Posted 18 hours ago Share Posted 18 hours ago 1 hour ago, OceanStWx said: Scooter is sitting down with his kids tonight and explaining that there are snow starved children in northern New England that need the snow more than they do. 1 minute ago, dryslot said: Then he gets up, Opens the window, And tosses the tree and all the gifts into the driveway and drives over them, Over and over again. Hallelujah…Holt Shit!! Where’s the Tylenol. 4 Link to comment Share on other sites More sharing options...
Sugarloaf1989 Posted 18 hours ago Share Posted 18 hours ago 1 minute ago, CoastalWx said: Hallelujah…Holt Shit!! Where’s the Tylenol. Jelly of the month club. 2 Link to comment Share on other sites More sharing options...
CoastalWx Posted 18 hours ago Share Posted 18 hours ago 2 minutes ago, CoastalWx said: Hallelujah…Holt Shit!! Where’s the Tylenol. 1 14 1 1 Link to comment Share on other sites More sharing options...
dendrite Posted 18 hours ago Share Posted 18 hours ago Is Santa bringing Bryce binoculars so he can see the snow out his west side window? 3 Link to comment Share on other sites More sharing options...
HIPPYVALLEY Posted 17 hours ago Share Posted 17 hours ago 1 hour ago, HoarfrostHubb said: I wish the other Rte 2 corridor was getting some. Enjoy it! Might be a coating at best for us. Radar looks meager. 1 Link to comment Share on other sites More sharing options...
Damage In Tolland Posted 17 hours ago Share Posted 17 hours ago 11 minutes ago, HIPPYVALLEY said: Might be a coating at best for us. Radar looks meager. You’ve got a solid 2” coming . So does Hunch . NYC to HFD is getting an inch. Our snow is coming from the squalls in Ohio 2 Link to comment Share on other sites More sharing options...
Johnno Posted 17 hours ago Share Posted 17 hours ago 54 minutes ago, CoastalWx said: God damn, that is a tough pill especially this week 2 Link to comment Share on other sites More sharing options...
CoastalWx Posted 17 hours ago Share Posted 17 hours ago 23 minutes ago, Johnno said: God damn, that is a tough pill especially this week I’m right at the bottom part of the letter “y”. My son has been pissed. 2 Link to comment Share on other sites More sharing options...
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