CoastalWx Posted September 1, 2014 Share Posted September 1, 2014 You can see how the strong winds blossomed in the lower levels from 21z to 00z. It's a good spot to be when you are on the nrn edge. Those cells can utilize what is probably a good shear zone, and you sort of could see that as the storms were slow to move east and didn't want to move away from the LLJ feeding right into that area. Link to comment Share on other sites More sharing options...
OceanStWx Posted September 1, 2014 Share Posted September 1, 2014 That's interesting... One thing I noticed is that once the anvil rains passed by us (I think we got .25 to perhaps a third of an 1" up here around Rt 2) is that the temps and DP were above 70. Was there perhaps even weakly defined warm boundary in play that was offering some SRH to boot? Yea, if the meso had a vertical representation it's hard to discount that. Even a slight differential heating boundary might have been enough of a feature to latch onto. Link to comment Share on other sites More sharing options...
Guvna Posted September 1, 2014 Share Posted September 1, 2014 Most shut down above 45 mph. There is also a Walmart on Rte 146 with a bunch of small turbines in the parking lot. Wonder if those were affected Yeah...those are much smaller and further South of the tiny circulation. Link to comment Share on other sites More sharing options...
JJBASHB Posted September 1, 2014 Share Posted September 1, 2014 You can see the tornado clearly as it moves out of view. Link to comment Share on other sites More sharing options...
TalcottWx Posted September 1, 2014 Author Share Posted September 1, 2014 Hrrr says pike south Link to comment Share on other sites More sharing options...
OceanStWx Posted September 1, 2014 Share Posted September 1, 2014 You can see the tornado clearly as it moves out of view. Kind of tough to see anything, but I agree around 32 seconds it appears to move from the right center of the frame to the right off camera. Link to comment Share on other sites More sharing options...
JJBASHB Posted September 1, 2014 Share Posted September 1, 2014 Kind of tough to see anything, but I agree around 32 seconds it appears to move from the right center of the frame to the right off camera. hah, yeah, clearly was a bad choice of words... but it's convincing. Weak, embedded in precipitation, I'm surprised someone actually got somewhat concrete footage. Link to comment Share on other sites More sharing options...
OceanStWx Posted September 1, 2014 Share Posted September 1, 2014 hah, yeah, clearly was a bad choice of words... but it's convincing. Weak, embedded in precipitation, I'm surprised someone actually got somewhat concrete footage. Cameras are everywhere these days, good for verification purposes though. Link to comment Share on other sites More sharing options...
Tornadomachine Posted September 1, 2014 Share Posted September 1, 2014 That thing was odd. No lightning, or very little by the time the TOR event took place. I'm up here in Ayer, which as the crow flies was plenty close enough for a SC's pulsing illuminations to be seen. Yet, I saw nothing...nadda. Not one flash. I was wondering if the fact that geopotential heights are around 582 to 588, with dm thickness well over 570 might have something to do with it, in that cloud tops were only partially glaciating. But that's speculation... I was also wondering if the TOR was a momentum transfer/curl thing, that had less to do with an actual updraft -- can that be identified by rad? In other words, if there was sufficient downdraft that tugged some of the mid level wind field down, and at less than meso-scale it curled around the hilly topography of Worcester, could that have mimicked a tornadic event?? There is a phenomenon known as "gustnado", which is just that ... when downburst/outflow winds curl into land-spouts, not associated with sustained updraft. I suppose in the end it wouldn't matter. At night, in sheets of horizontal wind...with transformers sparking and timbre cracking, who the hell cares. Mini-supercell? Sounds like a fairly tropical environment, and they're often embedded in other rain. Kinda like the CT tobacco net twister last year? Link to comment Share on other sites More sharing options...
Ginx snewx Posted September 1, 2014 Share Posted September 1, 2014 hah, yeah, clearly was a bad choice of words... but it's convincing. Weak, embedded in precipitation, I'm surprised someone actually got somewhat concrete footage.I was surprised at the quality for time of day Link to comment Share on other sites More sharing options...
bobbutts Posted September 1, 2014 Share Posted September 1, 2014 That thing was odd. No lightning, or very little by the time the TOR event took place. I'm up here in Ayer, which as the crow flies was plenty close enough for a SC's pulsing illuminations to be seen. Yet, I saw nothing...nadda. Not one flash. I was wondering if the fact that geopotential heights are around 582 to 588, with dm thickness well over 570 might have something to do with it, in that cloud tops were only partially glaciating. But that's speculation... I was also wondering if the TOR was a momentum transfer/curl thing, that had less to do with an actual updraft -- can that be identified by rad? In other words, if there was sufficient downdraft that tugged some of the mid level wind field down, and at less than meso-scale it curled around the hilly topography of Worcester, could that have mimicked a tornadic event?? There is a phenomenon known as "gustnado", which is just that ... when downburst/outflow winds curl into land-spouts, not associated with sustained updraft. I suppose in the end it wouldn't matter. At night, in sheets of horizontal wind...with transformers sparking and timbre cracking, who the hell cares. No time stamp on this, but I think it's indicating significant lightning from the cell that produced the tornado around the same time. Link to comment Share on other sites More sharing options...
JJBASHB Posted September 1, 2014 Share Posted September 1, 2014 I was surprised at the quality for time of day This too, moreso than the other factors. Link to comment Share on other sites More sharing options...
HoarfrostHubb Posted September 1, 2014 Share Posted September 1, 2014 You can get a rough idea with the "by state" numbers here http://www.spc.noaa.gov/climo/online/monthly/2014_annual_summary.htmlThanks Chris! Link to comment Share on other sites More sharing options...
Quincy Posted September 1, 2014 Share Posted September 1, 2014 Enhanced low-level helicity was noted last night around the time of the spin-up. The 00z OKX sounding indicates that the RAP mesoanalysis may have been on the conservative side. The sounding sampled 180 m2s-2 of 0-1km helicity, along with 47 knots of 0-6km shear (which matches up close to the mesoanalysis.) Although not directly over Worcester, I think it's a fair representation of the general environment that was in place. Looks like another low CAPE/moderate shear event. While nighttime tornadoes are fairly uncommon, there have been multiple cases of tornadoes around 01-02z in the Worcester area. SPC sounding with more parameters: http://www.spc.noaa.gov/exper/soundings/14090100_OBS/OKX.gif Link to comment Share on other sites More sharing options...
CoastalWx Posted September 1, 2014 Share Posted September 1, 2014 Can see that weenie cell to me SE nicely. Link to comment Share on other sites More sharing options...
weathafella Posted September 1, 2014 Share Posted September 1, 2014 The coast is gonna be cloudy and foggy all day. We see sun inland. Coast won't see much What a terrible forecast! Hot and sunny all day. Link to comment Share on other sites More sharing options...
CoastalWx Posted September 1, 2014 Share Posted September 1, 2014 Another Kevin fail. Link to comment Share on other sites More sharing options...
Damage In Tolland Posted September 1, 2014 Share Posted September 1, 2014 Coast got ripped with storms . And dews dried out inland to 72. Lol able Link to comment Share on other sites More sharing options...
Ginx snewx Posted September 2, 2014 Share Posted September 2, 2014 Great day Link to comment Share on other sites More sharing options...
CoastalWx Posted September 2, 2014 Share Posted September 2, 2014 On that video after 20 seconds you can also see stuff moving from right to left on the top right part of the screen too. Link to comment Share on other sites More sharing options...
TalcottWx Posted September 2, 2014 Author Share Posted September 2, 2014 Another Kevin fail.A full 24 hours of straight fail. Well actually he said Monday was capped about a week out which made no sense in the first plave with the setup so I guess it was like a week of fail. Link to comment Share on other sites More sharing options...
TalcottWx Posted September 2, 2014 Author Share Posted September 2, 2014 Could be slow moving sub severe boomers for some today Link to comment Share on other sites More sharing options...
CoastalWx Posted September 2, 2014 Share Posted September 2, 2014 HRRR and RPM are trying to pop a few cells assoc with weak s/w moving through and a WF type feature. Link to comment Share on other sites More sharing options...
TalcottWx Posted September 2, 2014 Author Share Posted September 2, 2014 hires products actually look surprisingly good for today. Keep the windows in your cars closed. I think it favors eastern half of SNE. Late day MCS wants to affect far, far western ct late today on hrrr. Don't buy that. Link to comment Share on other sites More sharing options...
eekuasepinniW Posted September 2, 2014 Share Posted September 2, 2014 What a weird place for a minicell to pop. Link to comment Share on other sites More sharing options...
CoastalWx Posted September 2, 2014 Share Posted September 2, 2014 Models actually had some stuff pop there too. Link to comment Share on other sites More sharing options...
TalcottWx Posted September 2, 2014 Author Share Posted September 2, 2014 Models actually had some stuff pop there too. Turning into a nice stretch of chances of rain. Hope you see more today lol. Grass completely burned out at pope john paul park by neponset I noticed. Looked dry closer to you when I went to south shore mall last weekend. Link to comment Share on other sites More sharing options...
CoastalWx Posted September 2, 2014 Share Posted September 2, 2014 Turning into a nice stretch of chances of rain. Hope you see more today lol. Grass completely burned out at pope john paul park by neponset I noticed. Looked dry closer to you when I went to south shore mall last weekend. Just bad luck missing out. I normally wouldn't care much, but when you work hard in the Spring to make it look nice and it becomes like the Sahara...it's frustrating to say the least. Link to comment Share on other sites More sharing options...
powderfreak Posted September 2, 2014 Share Posted September 2, 2014 Maybe we can get some booms later today... Link to comment Share on other sites More sharing options...
Damage In Tolland Posted September 2, 2014 Share Posted September 2, 2014 Here come the bangs into SNE Link to comment Share on other sites More sharing options...
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