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Winter Predictions


Rjay

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for now these are my weighted analogs...1957-58 came during a high Sun spot period...QBO was slightly positive around January all three years after a very negative previous year...the ao and nao are predicted to go negative to set the stage for the up coming winter...like last year I expect to see the heaviest snows when the AO goes negative...

2018-19 analogs precip.png

2018-19 analogs temp.png

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3 hours ago, North and West said:

Question, because I just got back into the weather follow-up as I've turned my furnace over and the heat has come on at night and in the early morning... why is this year forecast to have a mild December? Thanks.

Nino's traditionally have a later start in the east. The exceptions are usually some of our best winters.

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NYC will beat 95/96, SSTs + Weak/Moderate Nino + Near solar minimum + well AN precip this year + recent record breaking weather will fuel at least 2 massive storms. 

60-75"+ for the metro

December: AN Temps, AN Precip with 5-10"

January: BN Temps, AN Precip with 20-25"

February: Well BN Temps, Well AN Precip with 30-35"

March: BN Temps, Near normal Precip with 5-10"

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the ao and nao better be negative in December or the odds for a cold snowy December will be slim...

the chart below is ave temp and above ave snowfall in blue...black is near ave...negative ao and nao in blue...positive ao/nao in red...the nao and ao were negative for the coldest nine Decembers...six of the nine had above average snowfall...the bottom twelve were all above average in temps and below average in snowfall...only 1987 had a neg ao but positive nao...1957 had above average snowfall despite having a positive ao nao...the snow came early in Dec. 1957 after a negative ao November...

year.....ave temp...snowfall.....ao.....nao

1958.......29.4.........3.8".......-1.687.......-0.70

1976.......29.9.........5.1".......-2.074.......-1.60

1963.......31.2.......11.3".......-1.178.......-1.92

1969.......33.4.........6.8".......-1.856.......-0.28

1968.......34.3.........7.0".......-0.783.......-1.40

1977.......35.7.........0.4".......-0.240.......-1.00

2009.......35.9.......12.4".......-3.413.......-1.93

2002.......36.0.......11.0".......-1.592.......-0.94

1997.......38.3..........T..........-0.071.......-0.96

2004.......38.4........3.0"......+1.230.......+1.21

1972.......38.5..........T........+1.238.......+0.19

1986.......39.0........0.6"......+0.060.......+0.99

1987.......39.5........2.6".......-0.534.......+0.32

1991.......39.6........0.7"......+1.613.......+0.46

1957.......40.2........8.7"......+0.828.......+0.12

2014.......40.5........1.0"......+0.413.......+1.86

1965.......40.5..........T........+0.163.......+1.37

1979.......41.1........3.5"......+1.295.......+1.00

1994.......42.2..........T........+0.894.......+2.02

1982.......42.8........3.0"......+0.967.......+1.78

2006.......43.6..........0........+2.282.......+1.34

2015.......50.8..........T........+1.444........+2.24

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3 minutes ago, bluewave said:

I put together the Islip El Nino stats since 2000 for the posters on Long Island. December generally had the warmest temperature departure of DJF. Even on the years with a cold December temperature departure, it was still a warmer departure than the coldest winter month. The only 2 -NAO/-AO Decembers were 2002 and 2009. They were colder than normal and had 10" or more of snow for the month.

2002-2003.....ISP snowfall missing so BNL was used as a substitute

Seasonal snow.....62.1"

Dec....-2.2.....11.5".....-NAO/-AO

Jan...-4.4

Feb...-4.5

Mar...-2.4

2004-2005

58.8"

Dec....-0.4

JAN....-2.3

Feb....-0.5

Mar....-4.7

2006-2007

9.0"

Dec....+5.5

Jan....+5.3

Feb....-5.7

Mar...-1.0

2009-2010

53.8"

Dec....-1.1.....25.3" .....-NAO/-AO

Jan.....-0.2

Feb....-1.4

Mar....+5.8

2014-2015

63.7"

Dec...+4.0

Jan....-1.9

Feb....-11.2

Mar...-4.1

2015-2016

41.4"

Dec....+12.8

Jan....+2.7

Feb....+2.9

Mar...+6.2

How about Central Park?

sorry to bother you

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1 hour ago, Mojave1946 said:

Snowfall Predictions

2018-19 Winter:

 

Black Hills of S.D.: 100" - 200"

White Plains, NY: 5"

Islip, NY: 4"

LGA: 2"

Central Park: 1"

JFK: Trace

These are historically low numbers for the NYC area. Can you please expand on the elements of your forecast?

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1 hour ago, Snow88 said:

Earthlight's winter forecast

 

https://www.nymetroweather.com/2018/11/02/winter-forecast-2018-2019/

 

Snowfall well above normal for NYC

Thanks for posting 88, Im not going to lie some of it was hard for me to understand but I get the gist and heres to a Snowy Feb if not much more of the winter !!!

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2 hours ago, Snow88 said:

Earthlight's winter forecast

 

https://www.nymetroweather.com/2018/11/02/winter-forecast-2018-2019/

 

Snowfall well above normal for NYC

That's nice and all though I do miss the front loaded stuff of a 10/11.

As great as March was last year we missed out on a lot because of how late in the winter it was. Hopefully we see a repeat of that pattern a month earlier. 

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I’m always more bullish about a Nino winter than a Nina (although those have been good here too lately), and hopefully the west-based Nino and the NAO can help. I’m joining the North Shore crew in a couple weeks-moving to Huntington. Should be an improvement over LB-watch this winter be full of South Shore scrapers. ;) 

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1) Maryland, WV, PA have their wettest years to date since 1895. 

2) The PV has been displaced over Hudson Bay/Great Lakes since 2013

3) El Nino is weak-moderate and west-based. Ideal for snow. 

4) NAO has been positive like 300 straight days. Now looks to go positive again mid-November. Law of averages says -NAO Winter with Stratospheric warming\

5) Pacific looks great right now, +PNA El Nino driven, not allowing -PNA transitory waves. 

6) etc. lots of snow. Global warming has stopped I think

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On 11/3/2018 at 12:03 AM, jm1220 said:

I’m always more bullish about a Nino winter than a Nina (although those have been good here too lately), and hopefully the west-based Nino and the NAO can help. I’m joining the North Shore crew in a couple weeks-moving to Huntington. Should be an improvement over LB-watch this winter be full of South Shore scrapers. ;) 

Wow you went for it! From the least snowy place on Long Island to arguably the most.

My thoughts, 

01/02 as unlikely as 95/96

Several cold stormy/snowy periods and several warm periods. Overall the winter ends up 50% snowier then normal across the board for the region. I like the idea of a couple big nor’easters though they may not all be snow for the coast. That Atlantic Tripol of warmth screams tons of baroclynicity off the coast.

overall while not our coldest or snowiest winter the good old days keep rolling 

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