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January Forecast Discussion


REDMK6GLI

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2-5" areawide from 126-140 hours on the Euro with that late-developing system.

That looks pretty good, I remember a weekend storm about 8-10 years ago that had a similar evolution, it poured for like 2 days straight with a storm cutting west of us and then some trailing energy moved up the coast and gave us 4-8 inches of snow on Saturday night.
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It will be interesting to see what the models show in a few days as they have been all over the place.

 

The GFS is having problems because its trying to develop a split flow pattern...I'm not sure if that idea is right or not but regardless the GFS and even dating back to the AVN days has had big problems with split flow patterns in the lack of any significant NATL blocking...it will almost always blowtorch everyone in those setups for whatever reason, in the 93-94 winter the AVN showed rain for almost every single event past day 3 up til day 5 which is I believe how far it ran out then...the GFS has those problems still although now it has them past Day 8 vs. inside Day 5...if there is significant NATL blocking it usually will verify a bit better though often still warm...thats my guess as to why the GFS is very warm past Day 10.

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The euro ensembles and control run look great once past Tuesday . There are 2 systems on the map. Plus cold followed by colder.

By the end of the run the maps want to set up a big EC system ( while it takes the EPO neg )

There have been times during this year especially the last cold shot , where the ensembles picks something up early , drops it but brings it back as we got closer. With a Pos PNA and a Neg NAO this period has some promise.

I don't like to buy the Euro or any model past day 5 but its nice to see stuff like this pop up .

The 0z Euro ensembles lose the ridge out west after day 10 , dumps the trough in the west and warms the EC totally opposite of its 12 z from yesterday .

It is prone to do this only to bring it out in future runs .

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Over next 15 days the 500mb pattern is only favorable here bet.  1/14--1/18.   The 850mb. temps. are never better than neutral for the northeast.    Mid-month has a small window for the NAO-PNA combo to be favorable.   EPO and WPO  are just un-favorable  or 'less' un-favorable at times. MJO is muddled. ENSO is barely able to keep southerly jet active enough to be interesting. Stratosphere may be OK for us but where is the beef, or did we already eat it with artic outbreak last week?

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For those wondering about whether this winter will see any additional bouts of severe cold, recent climatology argues in favor of it.

 

During the 1981-2010 climate base period, there were 5 cases when the low temperature in New York City fell 2 or more standard deviations below normal on at least one day during the first half of January. The January 7, 2014 low temperature was 2.242 standard deviations below the January 1981-2010 average low temperature.

 

The lowest temperatures on or after 1/25 for those cases were as follows:

 

1981: 8°, 2/5

1982: 9°, 1/27

1988: 9°, 2/7

1996: 5°, 2/5

2004: 7°, 1/25

 

While there is no assurance of another single-digit low temperature, it is probably very likely that there will be numerous days with low temperatures in the teens, probably 7 or more if those cases are representative.

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For those wondering about whether this winter will see any additional bouts of severe cold, recent climatol

During the 1981-2010 climate base period, there were 5 cases when the low temperature in New York City fell 2 or more standard deviations below normal on at least one day during the first half of January. The January 7, 2014 low temperature was 2.242 standard deviations below the January 1981-2010 average low temperature. The five cases were:

The lowest temperatures on or after 1/25 for those cases were as follows:

1981: 8°, 2/5

1982: 9°, 1/27

1988: 9°, 2/7

1996: 5°, 2/5

2004: 7°, 1/25

While there is no assurance of another single-digit low temperature, it is probably very likely that there will be numerous days with low temperatures in the teens, probably 7 or

more if those cases are representative.

that's great information thank you

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Biggest question is can we time this cold with east coast cyclogenesis at the right time? Its great to have cold available but with nothing to lock it in or time it correctly with an east coast storm in my opinion it is almost a waste of cold. Lets put the cards on the table sub freezing temps with sunny skies is lame without the chance of snow with it

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Biggest question is can we time this cold with east coast cyclogenesis at the right time? Its great to have cold available but with nothing to lock it in or time it correctly with an east coast storm in my opinion it is almost a waste of cold. Lets put the cards on the table sub freezing temps with sunny skies is lame without the chance of snow with it

Agreed.

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Biggest question is can we time this cold with east coast cyclogenesis at the right time? Its great to have cold available but with nothing to lock it in or time it correctly with an east coast storm in my opinion it is almost a waste of cold. Lets put the cards on the table sub freezing temps with sunny skies is lame without the chance of snow with it

The good thing is...there is really no end in sight to the cold shots, as the -EPO seems poised to just reload one pulse after another. In my mind it isn't a matter of if we will cash in, just when. 

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The good thing is...there is really no end in sight to the cold shots, as the -EPO seems poised to just reload one pulse after another. In my mind it isn't a matter of if we will cash in, just when.

I agree and many in this region wonder what would be if we had cooperation from the atlantic and pacific in tandem with the this -EPO. These past several weeks werent that far off from delivering some of the best winter weather stretches in our region in recent history. The transient blocking helped the new years week storm. I would just like a couple more legit shots at winter storms this season and i will be happy.

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Biggest question is can we time this cold with east coast cyclogenesis at the right time? Its great to have cold available but with nothing to lock it in or time it correctly with an east coast storm in my opinion it is almost a waste of cold. Lets put the cards on the table sub freezing temps with sunny skies is lame without the chance of snow with it

I said this 3 weeks ago bring the Cold and the snow will follow. Looks like this week we transition and step down. Next week looks better on the EC. Nothings a done deal but the pattern has been first we get cold then it snows. So patience is required but the next cold shot at day 10 mayb aimed here could rival the last cold shot

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I agree and many in this region wonder what would be if we had cooperation from the atlantic and pacific in tandem with the this -EPO. These past several weeks werent that far off from delivering some of the best winter weather stretches in our region in recent history. The transient blocking helped the new years week storm. I would just like a couple more legit shots at winter storms this season and i will be happy.

Yep. Simply put, we would have another 95-96 winter. So far, I'm loving this winter. There's been something to track every 3-4 days. Even the 15/16th system was interesting for a few days. Now, we turn our attention to the 18th, then the 20th and so on. This is a fun winter so far. It's hard not to be excited about the end of Jan into Feb. All indices are moving into more favorable territory. We're getting something.

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Anyway to stay just cold for an extended period of time, to go from zero to 50 or 60 in a few days hurts.

 

Always, a warm front poised to head our way or a system cutting up to the lakes that takes a cold snap then torches us.

 

What do we need for truly sustained cold like December, 1989 where I believe everyday it went below 32 degrees.?

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Yep. Simply put, we would have another 95-96 winter. So far, I'm loving this winter. There's been something to track every 3-4 days. Even the 15/16th system was interesting for a few days. Now, we turn our attention to the 18th, then the 20th and so on. This is a fun winter so far. It's hard not to be excited about the end of Jan into Feb. All indices are moving into more favorable territory. We're getting something.

Agreed the pattern may yeild a nice book end to this winter with the direction the teleconnectos are forecast to head. If im not mistaken wasnt there a KU in january/ february in the 2000's the almost immediately followed a warm up?

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Anyway to stay just cold for an extended period of time, to go from zero to 50 or 60 in a few days hurts.

 

Always, a warm front poised to head our way or a system cutting up to the lakes that takes a cold snap then torches us.

 

What do we need for truly sustained cold like December, 1989 where I believe everyday it went below 32 degrees.?

As of now, there is no indication that we headed for a cutter pattern. A -NAO or -AO would help reinforce that though. Give it time.

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Could happen again, sure. But, we are dealing with longer days now, so it'll be harder. If the LR ens are right, we're going to see some serious cold later this month.

I really don't think that's an issue right now. I'm sure famous February cold snaps caused plenty of freezing over those areas. The long day theories are on par with the sun angle theories and both don't play a big role until late February and March. We're just getting into the coldest part of the season with regards to climatology. 

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