NaoPos Posted February 8, 2013 Share Posted February 8, 2013 Closed off southern stream? Link to comment Share on other sites More sharing options...
hazwoper Posted February 8, 2013 Share Posted February 8, 2013 Snow picking up here at rest stop just north of Kingston. I better get back on the road. Link to comment Share on other sites More sharing options...
HM Posted February 8, 2013 Share Posted February 8, 2013 Yes, that was a likely possibility. As the northern s/w dives into the Mid Atlantic, it will begin to transport some easterly momentum to the southern wave in a few hours. We have to watch closely then how much of a push eastward will occur (say starting 3-4 PM) because it will make a difference for northern areas / NE areas. Link to comment Share on other sites More sharing options...
tombo82685 Posted February 8, 2013 Share Posted February 8, 2013 Yes, that was a likely possibility. As the northern s/w dives into the Mid Atlantic, it will begin to transport some easterly momentum to the southern wave in a few hours. We have to watch closely then how much of a push eastward will occur (say starting 3-4 PM) because it will make a difference for northern areas / NE areas. I'm assuming less easterly movement the better as whole for the region? Link to comment Share on other sites More sharing options...
NaoPos Posted February 8, 2013 Share Posted February 8, 2013 ahh, KDIX is down.... Link to comment Share on other sites More sharing options...
HM Posted February 8, 2013 Share Posted February 8, 2013 I'm assuming less easterly movement the better as whole for the region? Yes. It will increase the overall amount of southern s/w moisture that gets involved, which cannot be a bad thing once the temps cool sufficiently. I do believe there will be banding structures with the northern s/w and deformation zone later, so additional moisture will help reduce the amount of people who get screwed (e.g. miss bands). There is a give and take here between the southern wave's internal dynamics / convection which wants to act to reduce forward speed and then the increasing easterly push from the arrival of the northern wave. Link to comment Share on other sites More sharing options...
PoconoD Posted February 8, 2013 Share Posted February 8, 2013 30.8 in snowing lightly. It's been snowing lightly all morning. The radar for the pocs does not look too promising to me ATTM. At one point last night we were sitting at 10-16" by Saturday morning. We are slowly joggng down with forecast totals and are now at 6-12". I am beginning to wonder it I am too far west for that amount. My cncern is the transfer of energy between the low to the west and coastal log which might leave NEPA in the screw zone. ~D~ Link to comment Share on other sites More sharing options...
tombo82685 Posted February 8, 2013 Share Posted February 8, 2013 Yes. It will increase the overall amount of southern s/w moisture that gets involved, which cannot be a bad thing once the temps cool sufficiently. I do believe there will be banding structures with the northern s/w and deformation zone later, so additional moisture will help reduce the amount of people who get screwed (e.g. miss bands). There is a give and take here between the southern wave's internal dynamics / convection which wants to act to reduce forward speed and then the increasing easterly push from the arrival of the northern wave. Wouldn't a closed off low, which bri posted resist the easterly push more than an open s/w? Link to comment Share on other sites More sharing options...
iceman56 Posted February 8, 2013 Share Posted February 8, 2013 Precipitation shield has shifted eastward markedly in last hour from Chesco's western boundary to now bisecting county N-S. Link to comment Share on other sites More sharing options...
jdamobile Posted February 8, 2013 Share Posted February 8, 2013 Yes. It will increase the overall amount of southern s/w moisture that gets involved, which cannot be a bad thing once the temps cool sufficiently. I do believe there will be banding structures with the northern s/w and deformation zone later, so additional moisture will help reduce the amount of people who get screwed (e.g. miss bands). There is a give and take here between the southern wave's internal dynamics / convection which wants to act to reduce forward speed and then the increasing easterly push from the arrival of the northern wave. So it will slow down or speed up? I get that it will kick east a bit but shouldn't it slow down once it gets captured? I'm confused. Link to comment Share on other sites More sharing options...
NaoPos Posted February 8, 2013 Share Posted February 8, 2013 Yes. It will increase the overall amount of southern s/w moisture that gets involved, which cannot be a bad thing once the temps cool sufficiently. I do believe there will be banding structures with the northern s/w and deformation zone later, so additional moisture will help reduce the amount of people who get screwed (e.g. miss bands).There is a give and take here between the southern wave's internal dynamics / convection which wants to act to reduce forward speed and then the increasing easterly push from the arrival of the northern wave. Sounds promising. Any thoughts on the image i posted above? Could just be temporary i suppose, but I'm sure it helps western zones? Didn't see any of the recent models show it closing off that early, unless it was between frames.. Link to comment Share on other sites More sharing options...
NaoPos Posted February 8, 2013 Share Posted February 8, 2013 Havent seen it yet, but euro is coming in stronger with the southern vort, and a decent bit NW of the 0z run? Link to comment Share on other sites More sharing options...
jdamobile Posted February 8, 2013 Share Posted February 8, 2013 Southern stream vort is also stronger and closed off on the EURO.. I think that answered your question Irish.. Link to comment Share on other sites More sharing options...
HM Posted February 8, 2013 Share Posted February 8, 2013 Wouldn't a closed off low, which bri posted resist the easterly push more than an open s/w? It helps a little bit. So it will slow down or speed up? I get that it will kick east a bit but shouldn't it slow down once it gets captured? I'm confused. You're confused because you probably are under the impression that the capture happens near us. These systems don't truly phase until this time tomorrow off the NE coast. As the western wave dives in, it will initially nudge the coastal low more seaward before they begin to wrap up. The amount of nudging will determine what happens across our area basically. Will it be widespread mod-heavy snow from PHL north or will it be broken bands of heavier snow embedded with lighter snow? This nudge could make the difference for many in the PHL-NYC corridor. Link to comment Share on other sites More sharing options...
tombo82685 Posted February 8, 2013 Share Posted February 8, 2013 Havent seen it yet, but euro is coming in stronger with the southern vort, and a decent bit NW of the 0z run? yea the qpf is up a hair. I can't determine how much is frozen Link to comment Share on other sites More sharing options...
jdamobile Posted February 8, 2013 Share Posted February 8, 2013 Ah.. gotcha thanks HM. Yea that's exactly why I was confused. Link to comment Share on other sites More sharing options...
Quakertown needs snow Posted February 8, 2013 Author Share Posted February 8, 2013 Link to comment Share on other sites More sharing options...
HM Posted February 8, 2013 Share Posted February 8, 2013 LOL oh and since this is an obs thread, heard from someone that there is some sleet/rain mix going on in Princeton. I know at this stage, our warmth aloft is maximizing, so it may not mean much. Link to comment Share on other sites More sharing options...
famartin Posted February 8, 2013 Share Posted February 8, 2013 EC verification thru 18Z is way wetter than reality. Just FYI. Link to comment Share on other sites More sharing options...
jdamobile Posted February 8, 2013 Share Posted February 8, 2013 ouch. and the snow stopped. Looks like a couple hours with no snow now according to that radar.. Link to comment Share on other sites More sharing options...
NaoPos Posted February 8, 2013 Share Posted February 8, 2013 EC verification thru 18Z is way wetter than reality. Just FYI. Think its too wet? Link to comment Share on other sites More sharing options...
johnc Posted February 8, 2013 Share Posted February 8, 2013 Rain has been mod / heavy the past hour here. Probably at just under a half-inch so far. Puddles all over the grass. Link to comment Share on other sites More sharing options...
goombatommy Posted February 8, 2013 Share Posted February 8, 2013 Snow has eazed up a little in Easton. Link to comment Share on other sites More sharing options...
famartin Posted February 8, 2013 Share Posted February 8, 2013 Think its too wet? Way too wet. Had 0.45" at PHL thru 18Z, only 0.21" fell. Link to comment Share on other sites More sharing options...
Bluescat1 Posted February 8, 2013 Share Posted February 8, 2013 Sleet is now mixing in at TTN, first frozen precipitation of the day, temp 37,1. Link to comment Share on other sites More sharing options...
PhillyBlizzard17 Posted February 8, 2013 Share Posted February 8, 2013 Does anyone have euro snow amounts for Philly FWIW? Link to comment Share on other sites More sharing options...
famartin Posted February 8, 2013 Share Posted February 8, 2013 Does anyone have euro snow amounts for Philly FWIW? Looks like about 3" snow on the EC. However, as noted the EC is verifying wetter than reality. I don't have maps yet but I'm guessing its too far west with the QPF. Sooo... keep that in mind. Link to comment Share on other sites More sharing options...
goombatommy Posted February 8, 2013 Share Posted February 8, 2013 Looks like about 3" snow on the EC. However, as noted the EC is verifying wetter than reality. I don't have maps yet but I'm guessing its too far west with the QPF. Sooo... keep that in mind. what about ABE? Link to comment Share on other sites More sharing options...
famartin Posted February 8, 2013 Share Posted February 8, 2013 what about ABE? About 6". Of course they should've had nearly 2" by now. Looks like they've had less than 1. Link to comment Share on other sites More sharing options...
goombatommy Posted February 8, 2013 Share Posted February 8, 2013 About 6". Of course they should've had nearly 2" by now. Looks like they've had less than 1. Thank you sir. Yea, theres barely a dusting/coating on non-pavement surfaces here and its been snowing since around 8:30AM. Link to comment Share on other sites More sharing options...
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