weathafella Posted February 16, 2021 Share Posted February 16, 2021 Was at Gillette stadium today. Foggy but pack so far intact there. In Dedham now and the fog is gone. A bit more snow here. 1 Link to comment Share on other sites More sharing options...
HoarfrostHubb Posted February 17, 2021 Share Posted February 17, 2021 2 hours ago, weathafella said: Was at Gillette stadium today. Foggy but pack so far intact there. In Dedham now and the fog is gone. A bit more snow here. Vaccine clinic? Winds really picking up here Link to comment Share on other sites More sharing options...
klw Posted February 17, 2021 Share Posted February 17, 2021 Nice squall came through as I was finishing the sleet blowing about 45 minutes ago. Link to comment Share on other sites More sharing options...
dryslot Posted February 17, 2021 Share Posted February 17, 2021 2.3" of sleet, 0.10" ice accretion is the final. Link to comment Share on other sites More sharing options...
weathafella Posted February 17, 2021 Share Posted February 17, 2021 54 minutes ago, HoarfrostHubb said: Vaccine clinic? Winds really picking up here Yup. First one in the bank. 2nd scheduled in exactly 4 weeks. Incredibly efficient process at Gillette! 2 Link to comment Share on other sites More sharing options...
Ginx snewx Posted February 17, 2021 Share Posted February 17, 2021 3 minutes ago, dryslot said: 2.3" of sleet, 0.10" ice accretion is the final. Good base for your epic run 1 Link to comment Share on other sites More sharing options...
metagraphica Posted February 17, 2021 Share Posted February 17, 2021 Nothin' but rain. Fortunately the 50+ temps were short lived and once the cold front passes tonight the pack will turn into a glacier. About 3-4" left. Nice refresher coming up next. Link to comment Share on other sites More sharing options...
dryslot Posted February 17, 2021 Share Posted February 17, 2021 What a bitch to clean this crap up, Tough getting the blower under it to pick it up and throw it, Kept wanting to ride over the top. Link to comment Share on other sites More sharing options...
HoarfrostHubb Posted February 17, 2021 Share Posted February 17, 2021 17 minutes ago, weathafella said: Yup. First one in the bank. 2nd scheduled in exactly 4 weeks. Incredibly efficient process at Gillette! Yeah. I saw they gave their 68000th shot (plus a few hundred). Equal to the capacity of the stadium. Hope this storm shifts north a tad Link to comment Share on other sites More sharing options...
mreaves Posted February 17, 2021 Share Posted February 17, 2021 25 minutes ago, weathafella said: Yup. First one in the bank. 2nd scheduled in exactly 4 weeks. Incredibly efficient process at Gillette! We’re you required to wait 15-30 minutes afterward? Link to comment Share on other sites More sharing options...
powderfreak Posted February 17, 2021 Share Posted February 17, 2021 4 hours ago, ORH_wxman said: High was 39F and temp has fallen back to 37F. Didn't end up losing all that much. About 2 inches and some of that was compaction. AWT. I figured around a foot when you posted that yesterday. 10” at worst left. Pretty embarrassing for those thinking a Xmas torch was event remotely possible, much less even mentioning it. Not even a blip for you. The loss was way out-gained by the SWE addition. Link to comment Share on other sites More sharing options...
dryslot Posted February 17, 2021 Share Posted February 17, 2021 18 minutes ago, powderfreak said: AWT. I figured around a foot when you posted that yesterday. 10” at worst left. Pretty embarrassing for those thinking a Xmas torch was event remotely possible, much less even mentioning it. Not even a blip for you. The loss was way out-gained by the SWE addition. There was no way he was going to lose much, To short a duration and temps and dews remained low. Link to comment Share on other sites More sharing options...
weathafella Posted February 17, 2021 Share Posted February 17, 2021 1 hour ago, mreaves said: We’re you required to wait 15-30 minutes afterward? Yes. It took that long to scan the app amd make the appointment for the 2nd shot lol.. I rolled through the 18z models during the wait.. 2 Link to comment Share on other sites More sharing options...
ORH_wxman Posted February 17, 2021 Share Posted February 17, 2021 2 hours ago, powderfreak said: AWT. I figured around a foot when you posted that yesterday. 10” at worst left. Pretty embarrassing for those thinking a Xmas torch was event remotely possible, much less even mentioning it. Not even a blip for you. The loss was way out-gained by the SWE addition. As soon as there was siggy CAD showing up, we knew it wasn’t going to take a hard hit. The key to pack retention as you are well aware of is basically: 1. Get some liquid equivalent in the pack (check.....already had the high water content 17” storm on Feb 1-2 surrounded by the multiple powder events) 2. Limit the exposure to high dewpoints > 37F (check....had maybe a few hours barely exceeding that number today) 3. Cool the pack back down quickly. If the core temp of the pack is very cold, a day or two of sunny 40-50F weather will do far less damage than if the pack is already pretty mild/soft/ripe. Energy is wasted warming up the pack rather than phase transitioning the ice crystals into water. (Check....very cold air advecting in behind storm) 1 Link to comment Share on other sites More sharing options...
ORH_wxman Posted February 17, 2021 Share Posted February 17, 2021 9 hours ago, White Rain said: You have some decent pack there left. To your point on number 3. Wouldn’t the snow temperature largely be irrelevant compared with the fact that after the pack is completely frozen versus ripe as you say, more mass of snow would need to phase transition (enthalpy of fusion) and this is the reason the pack takes significantly more energy to melt out. The energy needed from the temperature difference would be mostly negligible in comparison? My background on this is as a ChE but enjoy thermodynamics discussion. Specific heat of ice at 0C is 2.108 J/g C (less at lower temperatures) so say the snow is at 14F (18F below freezing or 10C), this amounts to ~ 21 J per gram compared with the 334J per gram needed to phase transition the snow to water at 32F. The temperature being at 14F vs 32F would result in only a 6% increase in energy needed to melt. You are definitely correct LE is by far the more important factor. That’s why fluff melts out so much faster regardless of how cold it may have been the day before. I still consider a variable that may be 5-10% part of the equation as mattering though. Link to comment Share on other sites More sharing options...
tamarack Posted February 17, 2021 Share Posted February 17, 2021 13 hours ago, dryslot said: What a bitch to clean this crap up, Tough getting the blower under it to pick it up and throw it, Kept wanting to ride over the top. We had all sleet, 2.0" from 0.76" LE. With decent ratios that's a 8-12" dump. Some very light frdz at the end but no effect on the surface. Worst part of clearing was the unstable footing from those tiny ball bearings. Would've been easier to clear the 8-12. 1 Link to comment Share on other sites More sharing options...
dryslot Posted February 17, 2021 Share Posted February 17, 2021 9 minutes ago, tamarack said: We had all sleet, 2.0" from 0.76" LE. With decent ratios that's a 8-12" dump. Some very light frdz at the end but no effect on the surface. Worst part of clearing was the unstable footing from those tiny ball bearings. Would've been easier to clear the 8-12. Definitely would have preferred snow, Does not seem to want to do that this year, I had a little zr on top of that and by the time i was able to get to it, You could walk right on top of it and i knew that was a bad sign, 150' driveway was a chore even for the JD tractor, I had to actually push down on the handle to force the leading edge to get underneath it. Link to comment Share on other sites More sharing options...
tamarack Posted February 17, 2021 Share Posted February 17, 2021 3 minutes ago, dryslot said: Definitely would have preferred snow, Does not seem to want to do that this year, I had a little zr on top of that and by the time i was able to get to it, You could walk right on top of it and i knew that was a bad sign, 150' driveway was a chore even for the JD tractor, I had to actually push down on the handle to force the leading edge to get underneath it. Many years ago (mid 60s) while I was at our NNJ home during semester break, we had 3" of IP followed by about 0.4" zr. Had to wear the creepers to climb the small hill from lake to house and kids were skating in their back yards. I couldn't mar the surface with a heel-stomp and I was nearly as big then as now. 1 Link to comment Share on other sites More sharing options...
HoarfrostHubb Posted February 17, 2021 Share Posted February 17, 2021 Our side road is an icy mess. They treated it numerous times yesterday but temps into the kid teens froze it up pretty good Link to comment Share on other sites More sharing options...
CoastalWx Posted February 17, 2021 Share Posted February 17, 2021 9 minutes ago, White Rain said: Thanks for the reply. I agree its not completely negligible, especially on cooler days where you resist phase change longer. Bigger point was it is minimal compared with the un frozen liquid water in the pack that make it ripe and release. I assumed fluff also melted out faster due to more surface area being exposed to ambient, not sure if this is a significant contributor. I never noticed this as much as I did in March 2015. Because of 8"+ in the pack and how dense it was, even in the March sun it seemed like it took forever to melt. Compare that to now where even this time of year, fluff goes quick in the sun. Frankly I was astonished how tenacious it was back then. I know people think higher elevations melt out slower due to temps, and part of that is true. But at higher elevations (even interior low spots) more water in the pack makes it harder. Link to comment Share on other sites More sharing options...
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