IsentropicLift Posted February 23, 2013 Share Posted February 23, 2013 Giant ULL sitting over the entire east with multiple vorticies rotating around it in the long range with a massive ridge out west. -10 850 line being pulled all the way down to northern Florida. Multiple areas of disturbed weather (snow showers) scattered about. Paid maps on storm vista show the surface freezing line just about clearing the gulf coast at hr 180, making it to northern FL and New Orleans and the 850 freezing line extending almost to West Palm Beach. The ULL is still centered over Washington DC by hr 204. What an amazing run. Link to comment Share on other sites More sharing options...
CooL Posted February 23, 2013 Share Posted February 23, 2013 The surface is pretty warm. We need a stronger system and stronger precip Link to comment Share on other sites More sharing options...
tombo82685 Posted February 23, 2013 Share Posted February 23, 2013 Major steps towards a big storm this run. Hr 138 low pressure tracking inside the benchmark, about 100 miles east of ACY. Southern NJ into moderate/heavy snow, up to about Staten Island. Light snow extending into New England. you mean moderate rain...the bl is absolutely torched. That is rain for everyone even far nw. Link to comment Share on other sites More sharing options...
IsentropicLift Posted February 23, 2013 Share Posted February 23, 2013 The surface is pretty warm. We need a stronger system and stronger precipreally? Just be happy that it shows a storm and that it's trending more favorable. 850's are well offshore anyway. Link to comment Share on other sites More sharing options...
IsentropicLift Posted February 23, 2013 Share Posted February 23, 2013 you mean moderate rain...the bl is absolutely torched. That is rain for everyone even far nw.Guess so, 850 freezing line is well offshore so I thought it was snow Link to comment Share on other sites More sharing options...
tombo82685 Posted February 23, 2013 Share Posted February 23, 2013 really? Just be happy that it shows a storm and that it's trending more favorable. 850's are well offshore anyway. if you are going to dissect a model run you need to overlay the right facts. It is not showing a snowstorm at all. This is a forum of discussing what can happen. You discussing a storm 6 days away and its impacts holds just as much merit as discussing its temps considering this time of year they are a big issue. Link to comment Share on other sites More sharing options...
ag3 Posted February 23, 2013 Share Posted February 23, 2013 you mean moderate rain...the bl is absolutely torched. That is rain for everyone even far nw. Surface falls for NYC to about 34 degrees. It starts at 45 but falls steadily. It's probably rain to wet snow. Every level is easily below freezing and thicknesses are 530. About .50" of precip falls. Link to comment Share on other sites More sharing options...
tombo82685 Posted February 23, 2013 Share Posted February 23, 2013 Guess so, 850 freezing line is well offshore so I thought it was snow in this situation and in any situation you can't go off the 850s. With that low being parked over lake huron the flow around it brings southerly winds which torches the surface. Link to comment Share on other sites More sharing options...
tombo82685 Posted February 23, 2013 Share Posted February 23, 2013 Surface falls for NYC to about 34 degrees. It starts at 45 but falls steadily. It's probably rain to wet snow. Every level is easily below freezing and thicknesses are 530. About .50" of precip falls. check above your surface. Hr 147 i have surface temps in the 30s while the 925mb temps are above freezing... Link to comment Share on other sites More sharing options...
Dsnowx53 Posted February 23, 2013 Author Share Posted February 23, 2013 Plus, that primary low in the Lakes had occluded a while ago, so there is not nearly as much warm air advection as what you would normally see with a primary low in that location. Link to comment Share on other sites More sharing options...
ag3 Posted February 23, 2013 Share Posted February 23, 2013 check above your surface. Hr 147 i have surface temps in the 30s while the 925mb temps are above freezing... I did Tom. Thanks. It's rain to wet snow. But who cares. It's a setup that was funky and very unlikely to happen the way the gfs showed it. Link to comment Share on other sites More sharing options...
SnoSki14 Posted February 23, 2013 Share Posted February 23, 2013 It's definitely not snow as is depicted, but I'm just paying attention to the setup rather than the BL temps this far out. You absolutely need a stronger more consolidated system to get snow, which the gfs is trying to trend towards. Link to comment Share on other sites More sharing options...
tombo82685 Posted February 23, 2013 Share Posted February 23, 2013 It's definitely not snow as is depicted, but I'm just paying attention to the setup rather than the BL temps this far out. You absolutely need a stronger more consolidated system to get snow, which the gfs is trying to trend towards. The setup is nice with the blocking, we can all agree on that. I just don't like the look of that ULL and where it is at. I would rather it in a 50/50 location than to our west. Link to comment Share on other sites More sharing options...
SnoSki14 Posted February 23, 2013 Share Posted February 23, 2013 The setup is nice with the blocking, we can all agree on that. I just don't like the look of that ULL and where it is at. I would rather it in a 50/50 location than to our west. Agreed, the only good thing is that it's occluded rather than a typical primary low, which less of a warming effect. What if the ULL shifts further sw, that should make things more favorable, right? Link to comment Share on other sites More sharing options...
Hailstorm Posted February 23, 2013 Share Posted February 23, 2013 Any updates on the GGEM and the rolling Euro please? It would be appreciated if a play-by-play with any changes from 12z is recited regarding the Euro. Link to comment Share on other sites More sharing options...
MJO812 Posted February 23, 2013 Share Posted February 23, 2013 Well out to sea with the March 1st storm on the Euro. Link to comment Share on other sites More sharing options...
Absolute Humidity Posted February 23, 2013 Share Posted February 23, 2013 Euro shows a few inches for NW Jersey around 100h. CMC looks like GFS with a light precip over southern half of NJ at 132. Might be rain. Link to comment Share on other sites More sharing options...
atownwxwatcher Posted February 23, 2013 Share Posted February 23, 2013 Euro shows a few inches for NW Jersey around 100h. CMC looks like GFS with a light precip over southern half of NJ at 132. Might be rain. GGEM looks like nothing over Southern NJ at 132... Boundary layer is pretty well torched on the GFS as well in Jersey with temps in the 40s... Link to comment Share on other sites More sharing options...
Absolute Humidity Posted February 23, 2013 Share Posted February 23, 2013 It sure does here. http://www.weatheroffice.gc.ca/data/model_forecast/colour_images/00_054_G1_north@america@zoomout_I_4PAN_CLASSIC@012_132.jpg Link to comment Share on other sites More sharing options...
bluewave Posted February 23, 2013 Share Posted February 23, 2013 The OP Euro broke toward the ensemble last night with the idea of shearing out or delaying the energy coming in behind. I guess that's why the euro ensembles have been less amplified than the OP the last few days.The OP could be holding too much energy back on this run but we'll see. Any delay in development will favor eastern sections like we have seen all season so far. Link to comment Share on other sites More sharing options...
MJO812 Posted February 23, 2013 Share Posted February 23, 2013 0z NAEFS BRRR for the south Link to comment Share on other sites More sharing options...
PB GFI Posted February 23, 2013 Share Posted February 23, 2013 120 hr 12Z GFS sniffing a little low pressure off the NJ shore Link to comment Share on other sites More sharing options...
Heisy Posted February 23, 2013 Share Posted February 23, 2013 I like the wave showing up around Day 8-9 on the EURO, you can also see it trailing the closed ULL on the 144hr GFS. It has more space to amplify compared to the one we're tracking right now. Plus colder air in place. Link to comment Share on other sites More sharing options...
PB GFI Posted February 23, 2013 Share Posted February 23, 2013 Develops too late in the ocean. No , its in response to the ULL coming east , as per the 12z GFS , Enough moisture printed out there at 120 and 126 . The issue is the surface , the 850`s look ok . So the GFS mayb picking up some enhancement and away from the coast it looks a little better . Link to comment Share on other sites More sharing options...
earthlight Posted February 23, 2013 Share Posted February 23, 2013 The overnight models have taken an ugly turn with the handling of the cutoff low over the Ohio Valley around Days 5-7. With most models now moving it northeastward towards New England over time, this will essentially squash any chance of amplification for the shortwave we were watching around 130-140 hours. Things can change once again, obviously, but should these solutions come to fruition our best chance would then be to hope that cutoff low elongates and moves towards the 50/50 position. Link to comment Share on other sites More sharing options...
Edge Weather Posted February 23, 2013 Share Posted February 23, 2013 Develops too late in the ocean. Don't you mean it develops right over us? The GFS starts to develop a 998mb low right along the Jersey coast at 120 hrs, then deepens it to 994mb over eastern Long Island at 126 hrs, then to 992mbs over eastern CT at 132 hrs, then to 989 as it is elongated and caught into the block from 100 miles east of Cape Cod to eastern Long Island, with moderate precip all the way back to central New York State, unfortunately it develops a bit too far north for us. What is amazing to me, is how the models showed a low developing right off the NJ Coast 10 days ago, and I guess that is exactly what will happen. Unfortunately, it will end up being a hit just to the north of us apparently. Link to comment Share on other sites More sharing options...
Heisy Posted February 23, 2013 Share Posted February 23, 2013 The overnight models have taken an ugly turn with the handling of the cutoff low over the Ohio Valley around Days 5-7. With most models now moving it northeastward towards New England over time, this will essentially squash any chance of amplification for the shortwave we were watching around 130-140 hours. Things can change once again, obviously, but should these solutions come to fruition our best chance would then be to hope that cutoff low elongates and moves towards the 50/50 position. Tom I agree, I actually think this one is starting to look bleak, HOWEVER...Last night and now 12z today the models are picking up on a wave that follows this storm as it lifts to the Northeast...This one could have room to amplify especially since the block is in place now. Link to comment Share on other sites More sharing options...
Heisy Posted February 23, 2013 Share Posted February 23, 2013 You can see the wave I'm talking about forming on the GFS @ 189 hrs. Link to comment Share on other sites More sharing options...
Weathergun Posted February 23, 2013 Share Posted February 23, 2013 Lots of changes on the 12z GFS on handling ULL/trough over the East, after 132hr. But it still looks to broad and disorganized to produce any major storm. Link to comment Share on other sites More sharing options...
NEG NAO Posted February 23, 2013 Share Posted February 23, 2013 120 hr 12Z GFS sniffing a little low pressure off the NJ shore too warm at the surface and the hours after that still too warm - ULL is in the wrong place for NYC Metro snow http://raleighwx.americanwx.com/models/gfs/12zgfspmsl10mwinds2mtemps120.gif Link to comment Share on other sites More sharing options...
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