I’ve seen several people on several different forums writing this winter off already. Even here on weatheradvance.com But I want to bring out just a few points to why I think otherwise.
Winter Has JUST started: Meteorological winter started December 1st but, officially winter didn’t start until just a few days ago. Yet we have already have had a major snowstorm in Coastal New Jersey, (after sandy) and have just had A major snowstorm in the interior sections of the northeast. Winter actually could be considered ahead of schedule.
Last Few Winters (09′-10′ & 10′-11′) Has Spoiled People: Most people use to be content with a good 3-6″ of snow from a snowstorm and the occasional 4-8″. But after the 3 Blizzards in the 2009-2010 winter in the Mid-Atlantic and Northeast and major snowstorms back to back to back in the 2010-2011 winter, most people think that its a bad winter if you get under 12″ of snow in one storm. But in all actuality could we just be seeing things finally returning back to normal? I think that is what has happened this year. I still think you will see above-average snowfall this winter in the eastern half of the nation especially the east coast but you will see it come in smaller sizes besides in February and March when I think winter will amp up.
November Was Bellow Average Temperature Wise In The Eastern Half Of The Nation: Many people who have said it has been so warm, have already forgotten that November Was MUCH colder than average in the eastern half of the nation. Actually NORTH CAROLINA had its 10th Coldest winter on record. Compared To Last Year Where the Eastern Half of the US was Its 10th WARMEST on record. Folks, this is NOT 2011-2012 winter all over
again. This actually looks closer to the winter of 2002-2003, if you are comparing Novembers. Which ended up being cold and snowier than average as well.
I have constantly compared this winter to the one of 2002-2003 because of its similarities. Be patient folks.
Already Had Several Eastern Major Snowstorms: A lot of people have not noticed that already there have been a few snow storms that have occurred in the Eastern half of the Nation. Lets take a look…
- New Jersey East Coast Snowstorm- It delivered a good 4-6″ plus of snow in eastern areas of Pennsylvania New Jersey and Northern Delaware, including also NYC and Connecticut. 3 Inches fell in Philadelphia and upwards of a foot in New England.
- Christmas Clipper- While this storm was relatively small and left a general 1-3″ Of snow in areas of Pennsylvania its still snow that most did not have last year.
- Post Christmas Snowstorm- This storm left areas from the Big cities (coating to 3″ of snow) To Interior states (6-12″+ of Snow) into Pennsylvania and New York State.
- Lets not forget the potential snow events for 12/28-12/31 and 01/01-01/04 storm. That’s 5 snow systems for some areas of the northeast that did not receive more than 2″ of snow last year,
Long Range Models Show plenty of cold air: The long range models, GFS, Euro are both showing cold air spilling into the eastern half of the nation for the next few weeks. The NAO is positive and the AO is positive, but you must remember that weather is a lot more than just the NAO and AO, If a cold front passes and pulls down cold air behind it and another storm comes right behind it. The previous storm serves as a block, in this case you don’t really need the negative NAO. You just better hope the PNA is positive. There are a lot of factors that go into the storms than just the NAO and AO and PNA. Anyway when you look at the long range models it is cold in the east and warm in the west. Which means that there will be opportunities for snow even in the southeast, including northern Georgia and Carolina.
Models Often Underestimate Cold Air in the Winter: As we have seen with the past two storms over the past 3 days (December 24th-26th) The Models had greatly underestimated the cold air that is present for these storms. This has often been the case in winters past. It continues to be the case this year as well. For example, we at weatheradvance.com preached that I-95 would get snow from this December 26th storm for about 4-5 days before, and that some would stick, contrary to what the models said, why? Because of the cold air that was present, that the models didn’t pick up. They have done that often. Forecasting is so much more than watching models. Its the conditions surrounding the area of weather as well. (Example, is the high pressure to the west or East of the area that the foretasted storm is coming in and how strong is the high, how strong will the low be?)
NAO, AO and PNA: While only the PNA is favorable now the NAO and AO were favorable for about a month. Why isn’t there reason the believe they will be again? When I track the NAO and AO during the summer, its not for no reason at all. You look for the pattern that these get into. I constantly stated that the NAO looks to be in a favorable pattern, the NAO has been for the most part Neutral or Negative. Its popped positive here and there, but nothing drastic. The NAO is projected to be slightly positive for now. But I think that will change as we head into February. The AO seems to have developed a pattern now. It goes negative for about a month, then goes positive for half a month, then goes back negative. Well have to wait and see if this continues but it looks as if it is in its positive half a month period now.
These are just a few reasons you should not be so quick to give up on this winter of 2012-2013 as there are a lot of positive things here already this year that were not here last year. And this winter is looking similar to the one that we had in 2002-2003 which really did not pick up until late January and that carried on until Early March. I think the same will happen this year. Winter is just getting started folks and it looks to be on the right track!




45 comments
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armando
December 26, 2012 at 11:33 pm (UTC -4) Link to this comment
Dan
December 27, 2012 at 2:05 am (UTC -4) Link to this comment
Eric
December 27, 2012 at 2:07 pm (UTC -4) Link to this comment
chris v
January 8, 2013 at 9:06 pm (UTC -4) Link to this comment
Rick
January 8, 2013 at 9:41 pm (UTC -4) Link to this comment
http://www.cpc.ncep.noaa.gov/products/precip/CWlink/MJO/enso.shtml
Maranda Gotcher
January 8, 2013 at 11:05 pm (UTC -4) Link to this comment
Yamahas
January 9, 2013 at 9:59 am (UTC -4) Link to this comment
Yamahas
January 9, 2013 at 10:09 am (UTC -4) Link to this comment
Rick
January 9, 2013 at 11:25 am (UTC -4) Link to this comment
Rick
January 9, 2013 at 11:36 am (UTC -4) Link to this comment
Yamahas
January 9, 2013 at 11:37 am (UTC -4) Link to this comment
Rick
January 9, 2013 at 11:49 am (UTC -4) Link to this comment
Yamahas
January 9, 2013 at 11:52 am (UTC -4) Link to this comment
Yamahas
January 9, 2013 at 11:56 am (UTC -4) Link to this comment
derickeugeneree
January 9, 2013 at 1:31 pm (UTC -4) Link to this comment
Rick
January 9, 2013 at 1:32 pm (UTC -4) Link to this comment
Mike D
January 9, 2013 at 3:27 pm (UTC -4) Link to this comment
Tim Johnson
January 9, 2013 at 3:40 pm (UTC -4) Link to this comment
Tim Johnson
January 9, 2013 at 4:07 pm (UTC -4) Link to this comment
Mike D
January 9, 2013 at 4:24 pm (UTC -4) Link to this comment
This is a very difficult pattern to predict. You are probably right, a model error. It hasn’t shown it the past week except for now, yet even its ensemble members are still showing cold in the coming weeks. Since it is only the operational that is showing that trend, I make a note, but until other models show the same trend, don’t buy it just yet.
Wasi
January 9, 2013 at 4:48 pm (UTC -4) Link to this comment
AutoFill Rob
January 9, 2013 at 5:55 pm (UTC -4) Link to this comment
AutoFill Rob
January 9, 2013 at 6:01 pm (UTC -4) Link to this comment
Nathan Sinclair
January 9, 2013 at 6:56 pm (UTC -4) Link to this comment
Mike D
January 9, 2013 at 8:19 pm (UTC -4) Link to this comment
18z GFS Ensemble member for 228 hours on Friday, January 18, 2013. For all the snow lovers on the east coast, this may be the one. This member pretty much sums up my ideas, though I think the snow axis may be a bit farther NW.
Tim Johnson
January 9, 2013 at 8:36 pm (UTC -4) Link to this comment
Mike D
January 9, 2013 at 8:45 pm (UTC -4) Link to this comment
Nathan Sinclair
January 9, 2013 at 9:11 pm (UTC -4) Link to this comment
Tim Johnson
January 9, 2013 at 9:53 pm (UTC -4) Link to this comment
Mike D
January 9, 2013 at 9:55 pm (UTC -4) Link to this comment
Mike D
Rod Houston
January 9, 2013 at 9:58 pm (UTC -4) Link to this comment
Mike D
January 9, 2013 at 10:02 pm (UTC -4) Link to this comment
Yamahas
January 9, 2013 at 11:41 pm (UTC -4) Link to this comment
Derickeugeneree
January 10, 2013 at 1:45 am (UTC -4) Link to this comment
AutoFill Rob
January 10, 2013 at 2:10 am (UTC -4) Link to this comment
Eric
January 10, 2013 at 6:51 am (UTC -4) Link to this comment
I have been extremely busy this week due to studies, and will not be able to get to your questions until Friday evening.
Mitchell West
January 11, 2013 at 7:17 am (UTC -4) Link to this comment
AutoFill Rob
January 11, 2013 at 7:58 pm (UTC -4) Link to this comment
Eric
January 11, 2013 at 8:44 pm (UTC -4) Link to this comment
Also, this sudden increase in sunspots and solar flux may have an effect on the sudden strengthening of the MJO over the tropics, as more energy is received to earth’s surface, and considering that the greatest amount of sunlight energy is focused towards the tropics, this could possibly explain the sudden increase in rising motion over western Pacific, which has led to an increase in thunderstorms and a strengthening MJO. The MJO is currently over the western Pacific towards Octants 5 and 6, which favors warmth over much of the US, especially towards the eastern US, with any cool weather occurring towards the western US and sometimes into the Plains. However, this is what normally occurs, and what we are seeing in this instance is a displacement of the polar vortex (due to the stratospheric warming event which was caused by the Kelvin Wave over the Pacific in early-mid December) In fact, the current stratosphere temperatures at 10 and 50 millibars are at all time record highs for this date http://www.cpc.ncep.noaa.gov/products/stratosphere/temperature/05mb9065.gif interestingly, this would put this current warming event in comparison to what we saw in 1984-85. Now, there is concern from what I understand about the MJO remaining in the western Pacific as being shown by the GFS and its ensembles, and this would mean that warmth would try to fight against the impending cold coming from the displaced polar vortex. However, I have a few reasons why I don’t think this is to be believed. You have to understand that we are dealing with models here trying to forecast the MJO out to 2 weeks in advance, and lately, the verification of the models on MJO has been horrific, with the GFS and GFES two weeks ago having the MJO stay in the “igloo” or barely into Octant 4 and 5, of course, the MJO is now approaching Octant 6. Considering that the MJO is a tropical oscillation, in which the increased temperatures means a greater difference in energy per degree, and since we are also dealing with the tropical oceans (Oceans have 1000 x the heat capacity of air), this difference in energy is significantly amplified, and thus, this is why it is important to look at the tropics, before PNA, AO, NAO and other associated mid and high latitude oscillations because it is the tropics and the solar cycles which ultimately control the pattern, and these other oscillations are just indicators, not dictators of the pattern.
A tip I like to use when trying to predict MJO is to look at the temperature anomalies for the global tropical oceans, and by doing so, you can see there are large regions of colder and warmer than normal water over the tropics. It is over these areas with the highest anomalies from normal over the tropics that have a tendency to see the upward phase of the MJO go over that particular region of the globe. (link) http://weather.unisys.com/surface/sst_anom_new.gif This is the case because with warmer waters in place, it naturally warms the surrounding air, and since warmer air has a natural tendency to rise and force pressures to fall thanks to the air particles within warmer air moving more freely about, causing less air molecules to packed into the same amount of space. In our current situation, the MJO has moved quite quickly out of the Indian Ocean and towards the eastern Pacific, however, as time progresses the models show the MJO trying to hang around in the western Pacific, and if this occurred, it would be a warm pattern for the US. However, this does not make sense given that the Atlantic Ocean is deep into its warm AMO, and naturally, the MJO would have a tendency to force upward motion over the Atlantic due to the waters being warmer than normal, and with the eastern Pacific being colder than normal, it would seem that the models in this case trying to keep the MJO over the western Pacific, are having problems pushing the MJO towards the Atlantic because there is a a disconnect with the eastern Pacific being cooler than normal. (also this is the opposite of last year when the deep tropical Atlantic was cooler than normal) Now, when the MJO does move out of the western Pacific, we will have to keep a lookout for any potential Kelvin Waves, we saw less than a week ago, the SOI tried to crash negative, however the upward MJO pulse prevented this Kelvin Wave from strengthening because as the increase in thunderstorm activity occurred over the western Pacific, this lowered surface pressures, and with pressures over the eastern Pacific in relation being higher than normal, this induces a more east-west flow across the tropics where air from the region of naturally higher pressures over the eastern Pacific flows towards the region of general low pressure over the western Pacific. This east-west flow is associated with “normal” conditions over the Pacific, in which it follows the natural wind patterns over the tropics are induced by the Coriolis Effect. However, realizing that like the Kelvin Wave (which helped to lead to the current stratospheric warming event, and it’s the stratospheric warming event causing the polar vortex to become dislodged and is leading to the very cold weather being experienced over Asia) the MJO is one of the few things that can travel west-east in the tropics, it is very important to watch the MJO to help lookout for Kelvin Waves. My suspicion is that when the MJO starts to come towards the Atlantic, that with it backing off in the western Pacific forcing pressures to rise, and pressures lower towards the eastern Pacific, this could lead to the formation of a new Kelvin Wave where the air over the Pacific under this scenario naturally rushes west to east, just like the natural propagation of the Kelvin Wave. If this does happen, then I would not be too surprised to see a reinforcing shot of warmth into the already warm stratosphere, and this could mean even more deterioration of the polar vortex, helping to drive the NAO and AO considerably negative. Also, with the 30 day sunspot cycles near their peak now, they should begin to drop off, and knowing the inverse correlation with sunspot cycles and PNA, the lower portion of the 30 day cycle that will come towards late January will lead to the PNA becoming positive, and with a strongly negative AO and NAO from the stratosphere, this would set-up a pattern in which it could get very cold and snowy over the US towards late January and February. Interestingly, the models agree with me in this instance, and they show the polar vortex currently located over extreme northern Canada becoming very displaced and heading towards southern Canada and the northern US in the longer ranges, and the reason the vortex will be coming south will be because of the increasing warming in the stratosphere over arctic, forcing the vortex to move southward to avoid complete collapse (like what happened in 1984-85), and with a strong gyre of low pressure forming over eastern Canada and the Canadian Maritimes, this will create a “fujiwhara” with the other strong region of low pressure (this strong region of low pressure being the polar vortex containing some of the coldest air in the northern hemisphere), and since the polar vortex is located to the northwest of this developing gyre of low pressure, this means that since fujiwhara of low pressure regions in the northern hemisphere goes in a counter-clockwise motion, this area of low pressure (polar vortex )would be forced to move southward in response. Interestingly, the timing on when this would occur would ironically be almost at the exact same time when the severe arctic outbreak in 1985 plunged into the US. (around and just after January 20th) This winter is not over by a long shot, and I will continue on my ideas for cold and the worst of winter to come towards late Jan-Feb.
Central New Jersey Weather
January 11, 2013 at 9:22 pm (UTC -4) Link to this comment
Karl, Forecaster, and I (biggamefisherman1000) forecast on that website.
Eric
January 11, 2013 at 10:26 pm (UTC -4) Link to this comment
I have heard about the storm on the 20th, but there’s a lot of uncertainty as to exactly when a storm will hit, although we could easily see a wave of low pressure develop along a very strong cold front associated with a positively tilted trough that extends all the way into the polar vortex which will be nearing the Hudson Bay within a week’s time. This cold front will have arctic air infused into it since it will be attached to the polar vortex and I will feel more confident in a precise storm system when we start to see the feedback from this cold air into the models. Regardless, with the polar vortex moving down into Quebec and Ontario (as I explained in my post above) this will infuse vast amounts of cold air into the pattern, and with residual mild air (in comparison) to the south, this will create a strong temperature and pressure gradient (helps to fuel mid-latitude cyclones), so we are bound to get some significant storm system(s) out of this pattern, its just a matter of precisely when and where they strike.
AutoFill Rob
January 11, 2013 at 10:36 pm (UTC -4) Link to this comment
Eric Webb
January 11, 2013 at 10:46 pm (UTC -4) Link to this comment
Yeah, I have been busy of late, and I will still somewhat busy early this week, but I should start blogging more frequently by late this upcoming week. This is good news, and if this does indeed happen where the polar vortex dips into the northern US, would verify my ideas all the way back on December 9th for this to be comparable to 1984-85, and through all of the model discrepancies, ridicule, etc.., I have not budged from my initial ideas from early December for the worst of winter to come later, now that’s consistency, lol. If this verifies, wow, would be simply amazing. In saying this, still have a little ways to go before these ideas are tested and things can change, but I like how things are playing out right now.
AutoFill Rob
January 12, 2013 at 2:15 am (UTC -4) Link to this comment
Mike D
January 12, 2013 at 11:28 am (UTC -4) Link to this comment
I read your comments whether they are to me or not. I have a few questions for you. I understand you are busy with studies so whenever you can please answer (don’t worry, they’re not that urgent)
What do you think of the new Korean run for 30 days out starting January 21st? It was on Joe Bastardi’s video today, and it had a major heat wave in Europe and a positive AO.
Do you think me area could receive any snow on Tuesday? Most weather prediction websites and models have the precipitation staying south or only cold rain here.
I know you and Autofill Rob have been discussing the storm on the 20th, but I have seen otherwise. I know Stephen Boyle thinks the storm on the 20th is going to be so strong its dangerous. I just don’t see the storm phasing because of the other storm just in front of it on the 16th. On the models, it almost looks like there is a piece of energy in the southeast, a piece of that breaks off for the 16th storm, and then the other piece strengthens but goes out to sea. I think the problem is that there is not enough space between the two storms for the arctic blast to come in. Instead, the arctic air pushes the 20th storm out to sea. What are your thoughts on this?
Lastly, what are Kelvin Waves, where do they form, and what do they do?