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1 hour ago, IrishRob17 said:

GFS has me going below freezing Wednesday morning with the Euro saying its Thursday morning.  The IMBY average first freezing date is 10/21.

Looks like this will be the second  latest freeze at POU after 1995 and 1971. They came close last week but only made it down to 34°. Posters wouldn’t mind if even a fraction of that 1995 analog worked out going forward.;)

 

Frost/Freeze Summary for Poughkeepsie Area, NY (ThreadEx)
Each section contains date and year of occurrence, value on that date.
Click column heading to sort ascending, click again to sort descending.
Year
Last
Value
First
Value
Season Length
1995 - - 11-05 (1995) 32 -
1971 04-24 (1971) 30 11-05 (1971) 30 194
1975 04-22 (1975) 25 10-30 (1975) 31 190
2007 04-21 (2007) 32 10-29 (2007) 27 190
1942 04-14 (1942) 27 10-29 (1942) 32 197
2011 04-22 (2011) 27 10-28 (2011) 28 188
2013 05-14 (2013) 30 10-24 (2013) 31 162
2005 05-13 (2005) 32 10-24 (2005) 31 163
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6 hours ago, uncle W said:

in the winter time after a winter storm there is usually another storm in the forecast...I can remember that going back to the March 1960 storm...most of the time the storm never came or was minor...The video of the 1967 blizzard on you tube says another storm is on the horizen...that turned out to be a 2" event...

Back then it was hard to be accurate 3 days out.Snow tomorrow turned out Partly Cloudy numerous times in the 60's. I remember after the blizzard of 78 they were hyping another snowstorm 3 days out. I guess it went out to sea

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The weather will continue to turn noticeably cooler as the week progresses. Tomorrow will be among the coolest days so far this fall.

The cool weather likely won't be sustained. A warming trend will likely commence during the second week of the month. This warmth could carry over into the start of the third week of November. Overall, the first 10 days of November will average solidly cooler than normal in the Middle Atlantic and southern New England regions.

Recently, Atlantic teleconnections went through an unusual combination for the second half of October where the AO was +0.750 or above and the NAO was -0.750 or below for a record four consecutive days during the second half of October. There were three clusters of cases with one or more such days during the second half of October (1950-2020), two of which favored warmth in the East in November.

Cluster 1 (1961, 1973, 1975): Warm East, Cool West
Cluster 2 (1970, 2006): Warm Northeast/Cool Southeast, Warm West
Cluster 3 (2008): Cool East, Warm West

The evolution of the PNA could be crucial. For both Cluster 1 and 2, the PNA averaged negative during November. For Cluster 3, the PNA averaged above +1.000. The latest guidance shows the PNA descending to neutral levels by mid-month.

Fall 2021 will likely be wetter to much wetter than normal in the northern Middle Atlantic region. Since 1869, there have been 9 August cases where New York City picked up 20.00" or more rainfall during the summer. Two thirds of those cases (and 4/5 of those with summer mean temperatures of 73.0° or above) had 17.00" or more fall precipitation in New York City. 2011 is probably the closest match in terms of precipitation and a nearly identical summer mean temperature. Mean fall precipitation for those 9 cases was 14.86". The median was 17.35". The 1991-2020 normal value is 12.27". Fall rainfall through November 1 4 pm is 15.29".

Following very wet July-September periods, winter (December-February) precipitation has typically been near or below normal. The most recent exception was winter 2018-19.

The ENSO Region 1+2 anomaly was -0.6°C and the Region 3.4 anomaly was -1.1°C for the week centered around October 27. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -0.05°C and the ENSO Region 3.4 anomaly has averaged -0.65°C. La Niña conditions will likely persist through at least mid-winter.

The SOI was -1.53 today.

The preliminary Arctic Oscillation (AO) figure was -0.666 today.

On October 30 the MJO was in Phase 1 at an amplitude of 0.861 (RMM). The October 29-adjusted amplitude was 0.981 (RMM).

 

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2 hours ago, KEITH L.I said:

Back then it was hard to be accurate 3 days out.Snow tomorrow turned out Partly Cloudy numerous times in the 60's. I remember after the blizzard of 78 they were hyping another snowstorm 3 days out. I guess it went out to sea

the only storm that was bigger or even to the first one was in Feb. 1994...

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50 minutes ago, bluewave said:

The extended EPS and GEFS have a blocky look around Thanksgiving and possibly some early season flakes.

 

B46F675A-5462-4275-A27C-25B0C1205F79.thumb.jpeg.0e9898cda8deba45a8cd2c08b2cb4e62.jpeg

 

A7BD347D-4404-487F-91CC-9C9221112A84.thumb.png.88d1d69d452f6f9e7d9f916c82f1adf4.png

 

We'll need blocking whenever we can get it this winter to force cold air down. You can already see the roaring Nina Pacific getting started on the models for late this week/next week that will want to keep it zonal and flood the continent with mild air. 

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20 minutes ago, snowman19 said:

This has been the risk all along…warmer as we get further along in time….the models keep overestimating the “cold” in the long range. The beat goes on……November most likely turns out to be another AN month…..

November isn't a winter month 

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10 hours ago, uncle W said:

in the winter time after a winter storm there is usually another storm in the forecast...I can remember that going back to the March 1960 storm...most of the time the storm never came or was minor...The video of the 1967 blizzard on you tube says another storm is on the horizen...that turned out to be a 2" event...

remember after April 1982 there was another storm in the forecast a week later, and we got an inch of snow instead of the 3-6 that was predicted

 

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50 minutes ago, jm1220 said:

We'll need blocking whenever we can get it this winter to force cold air down. You can already see the roaring Nina Pacific getting started on the models for late this week/next week that will want to keep it zonal and flood the continent with mild air. 

with all this talk of warming climate and warming oceans, how are we still getting la ninas?  They'll likely be a thing of the past in the future when our oceans are boiling year round

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19 minutes ago, LibertyBell said:

with all this talk of warming climate and warming oceans, how are we still getting la ninas?  They'll likely be a thing of the past in the future when our oceans are boiling year round

La Niña happens when trade winds are stronger than usual in the tropical Pacific. I haven’t seen any research about whether global warming would weaken or strengthen trade winds. I don’t think we’re more or less predisposed to Nina or Nino these days. 2 winters ago was a Nino I think and it was a disaster. 

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Just now, jm1220 said:

La Niña happens when trade winds are stronger than usual in the tropical Pacific. I haven’t seen any research about whether global warming would weaken or strengthen trade winds. I don’t think we’re more or less predisposed to Nina or Nino these days. 2 winters ago was a Nino I think and it was a disaster. 

I remember reading somewhere that super el ninos have become more likely and connected that to climate change, not sure about the likelihood of the other enso phases.

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26 minutes ago, LibertyBell said:

remember after April 1982 there was another storm in the forecast a week later, and we got an inch of snow instead of the 3-6 that was predicted

 

there was one predicted after the Dec 1995 snowstorm that never materialized...the other one was after the blizzard of 96 that gave us 1-3" and turned to rain...

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3 minutes ago, uncle W said:

last year was the warmest Nov on record...the winter had almost 40" and had two major storms...

amazing some of these great winters and the mild Novembers that preceded them:

using the list of 40+ winters between 1950 and 1994.....

1960-61, 1966-67, 1977-78, 1993-94 (50+)

1957-58, 1963-64 (40+)

they all had mild Novembers (6/6).....

 

 

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12 minutes ago, LibertyBell said:

amazing some of these great winters and the mild Novembers that preceded them:

using the list of 40+ winters between 1950 and 1994.....

1960-61, 1966-67, 1977-78, 1993-94 (50+)

1957-58, 1963-64 (40+)

they all had mild Novembers (6/6).....

 

 

I think November could be a little above average before a possible colder December...these are the years that had Sept/Oct/Nov above average...there were years with two above and a near average month that I left off...

1946...

1953...

1961...

1970...

1973...

1985...

2016...

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5 hours ago, bluewave said:

Not much of a change on the extended EPS from last week. Cool down for the first week of November with coldest departures remaining to our SW. Then we see a rebound in temperatures for the second week of the month.


Nov 1-8


2955DC63-7A64-4AEB-8C08-933FF25C591D.thumb.png.fc070697c021be86d41b796e87a6b6b6.png

 

Nov 8-15


AB0A5D62-98FD-42B1-950B-BB6064C025FC.thumb.png.896d0cddd2b6624deeec948462cd4a92.png

 

 

Awesome! Like last November, it was a cold first week then hit 70 during the second week of the month. I would love some late season stripe bass fishing in a t shirt again 

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9 minutes ago, Allsnow said:

Awesome! Like last November, it was a cold first week then hit 70 during the second week of the month. I would love some late season stripe bass fishing in a t shirt again 

November 1993..........

widespread freeze and heavy frost in the first week (down to 28 here just SE of JFK)....then we hit 80 on November 15th for the latest 80 we've ever had, and a day after the marathon where many were overcome by heat.

and the winter, as they say, was historic

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1 hour ago, uncle W said:

there was one predicted after the Dec 1995 snowstorm that never materialized...the other one was after the blizzard of 96 that gave us 1-3" and turned to rain...

There was a storm on 1/2/96 that was a I-90 snowstorm and down here was ice/rain mostly which is what you’re referring to. Thankfully the pattern reoriented and the blizzard happened 6 days later. 

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