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October 2014


Rtd208

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I think October gradually gets cooler not colder but since it'll be on the wet side as fall should be technically autumns that are dry end up having a colder winter. This is why I think it will not get cold right away. For NYC I expect this month temperature to be below a (-1) degree. As this late October should bring nice snows through ohio valley and build that snow pack. Poconos will get some mixture at the end of the month but snows should cover some Southern Michigan and Ohio valley. Hope you enjoy your day...

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I think October gradually gets cooler not colder but since it'll be on the wet side as fall should be technically autumns that are dry end up having a colder winter. This is why I think it will not get cold right away. For NYC I expect this month temperature to be below a (-1) degree. As this late October should bring nice snows through ohio valley and build that snow pack. Poconos will get some mixture at the end of the month but snows should cover some Southern Michigan and Ohio valley. Hope you enjoy your day...

Snowpack in October? It can snow but it won't stick around that early

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GEFS even more bullish today than yesterday on a big -AO drop.

If a drop that big verifies, it would have the lowest readings since

March into early April 2013.

 

Lowest daily AO reading  4-6-13 to 10-1-14.....2014 1 27 -2.605

 

today

 

 

yesterday

 

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Snowpack in October? It can snow but it won't stick around that early

 

 

 

The longest duration autumn snowpack I can recall was when I lived in SE PA for the October 29-30th event of 2011, the precursor to a craptastic winter. We had about 5" of snow with temps around 32F and the plows going down the highway in midday. That snow cover lasted for a good 5 days, into early November, as temperatures were well below normal.

 

Not something I'd like to see repeated.

 

http://www.raymondcmartinjr.com/weather/2012/29-Oct-11.html

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with the ao forecast to plunge here are the winters with the highest ao minimum for the season...

1988-89...-0.318...

1974-75...-1.695

1972-73...-2.044

1999-00...-2.118

2006-07...-2.184

1992-93...-2.228

1987-88...-2.314

2007-08...-2.468

1991-92...-2.597

2013-14...-2.605

1960-61...-2.719

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The longest duration autumn snowpack I can recall was when I lived in SE PA for the October 29-30th event of 2011, the precursor to a craptastic winter. We had about 5" of snow with temps around 32F and the plows going down the highway in midday. That snow cover lasted for a good 5 days, into early November, as temperatures were well below normal.

 

Not something I'd like to see repeated.

 

http://www.raymondcmartinjr.com/weather/2012/29-Oct-11.html

Please ... No Oct snow, that event laid 3.5" of snow and sleet here and lasted three days and that was the highlight of that awful winter. 79 was similar but lasted less and the winter stunk.
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late October 2002 we got two consecutive nights with sleet that stuck in some places...That winter wasn't to bad...1925 had an inch near the end of the month and NYC got two 10"+ storms in a one week period in February...1962, 1979 and 1972 had some measurable snow in places and the winter stunk...

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My high was 68...I am seeing low to perhaps some mid 70s on my forecast for next week...only one day of real cool on Sunday and then moderating nicely

Things do still look quite warm despite the negative AO/NAO which I guess still isn't enough to override the pattern.

I think we'll see a couple more days in the 80s next week.

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The GFS ensembles are hinting at the first -3 or lower AO reading since March into April 2013.

So we should easily clear the -2 hurdle.

 

NYC seasonal snowfall totals since 2002 following October daily AO reading below -2:

 

02-03........49.3"

03-04........42.6"

04-05........41.0"

06-07........12.4" plenty of sleet but later blocking lead to cold February with a -6.3 temperature departure

09-10........51.4"

10-11........61.9"

12-13........26.1".....Islip 46.9" with February 2013 blizzard jackpot

 

 

 

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The GFS ensembles are hinting at the first -3 or lower AO reading since March into April 2013.

So we should easily clear the -2 hurdle.

 

NYC seasonal snowfall totals since 2002 following October daily AO reading below -2:

 

02-03........49.3"

03-04........42.6"

04-05........41.0"

06-07........12.4" plenty of sleet but later blocking lead to cold February with a -6.3 temperature departure

09-10........51.4"

10-11........61.9"

12-13........26.1".....Islip 46.9" with February 2013 blizzard jackpot

 

 

 

attachicon.gifao.sprd2.gif

Interestingly enough, a similar but lesser (than currently forecast) dive in the AO took place around 10/10 in 2009 as an El Niño was taking hold. Currently, an El Niño may be in the early stages of development, though the SSTAs are somewhat cooler than where they were in 2009. A little less than two weeks later, another impressive block developed in 2009. It will be interesting to see how things evolve this time around.

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Interestingly enough, a similar but lesser (than currently forecast) dive in the AO took place around 10/10 in 2009 as an El Niño was taking hold. Currently, an El Niño may be in the early stages of development, though the SSTAs are somewhat cooler than where they were in 2009. A little less than two weeks later, another impressive block developed in 2009. It will be interesting to see how things evolve this time around.

 

Yeah, we also saw a late September rise in the AO like this year before the drop in October.

 

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