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November 2022


Stormlover74
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2 minutes ago, LibertyBell said:

Wow first freeze wasn't until December in 2010?

When was the latest-- 2001?

Toronto's latest was 2004? That was a very cold and snowy winter.

The latest freeze in NYC was 12-22-98 and at LGA 1-4-16.


 

Frost/Freeze Summary for NY CITY CENTRAL PARK, NY
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
1998 03-23 (1998) 32 12-22 (1998) 22 273
2001 03-28 (2001) 30 12-16 (2001) 32 262
1948 04-04 (1948) 32 12-11 (1948) 31 250
2011 03-29 (2011) 31 12-10 (2011) 32 255
2016 04-10 (2016) 31 12-09 (2016) 29 242
Frost/Freeze Summary for LAGUARDIA AIRPORT, NY
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
2015 03-29 (2015) 27 01-04 (2016) 15 280
2001 03-28 (2001) 31 12-23 (2001) 32 269
1998 03-22 (1998) 31 12-22 (1998) 24 274
2021 04-02 (2021) 29 12-19 (2021) 31 260
2011 03-29 (2011) 32 12-11 (2011) 31 256
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2 minutes ago, bluewave said:

The latest freeze in NYC was 12-22-98 and at LGA 1-4-16.


 

Frost/Freeze Summary for NY CITY CENTRAL PARK, NY
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
1998 03-23 (1998) 32 12-22 (1998) 22 273
2001 03-28 (2001) 30 12-16 (2001) 32 262
1948 04-04 (1948) 32 12-11 (1948) 31 250
2011 03-29 (2011) 31 12-10 (2011) 32 255
2016 04-10 (2016) 31 12-09 (2016) 29 242
Frost/Freeze Summary for LAGUARDIA AIRPORT, NY
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
2015 03-29 (2015) 27 01-04 (2016) 15 280
2001 03-28 (2001) 31 12-23 (2001) 32 269
1998 03-22 (1998) 31 12-22 (1998) 24 274
2021 04-02 (2021) 29 12-19 (2021) 31 260
2011 03-29 (2011) 32 12-11 (2011) 31 256

Was JFK's latest in 2001 Chris?

 

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3 minutes ago, LibertyBell said:

Was JFK's latest in 2001 Chris?

 

It was 12-17-83 at JFK and yesterday at ISP.

 

Frost/Freeze Summary for JFK INTERNATIONAL AIRPORT, NY
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
1983 03-30 (1983) 31 12-17 (1983) 31 261
1998 03-25 (1998) 31 12-14 (1998) 31 263
2016 04-10 (2016) 31 12-09 (2016) 31 242
2009 03-25 (2009) 31 12-07 (2009) 31 256
2006 04-05 (2006) 32 12-04 (2006) 31 242


 

Frost/Freeze Summary for ISLIP-LI MACARTHUR AP, NY
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
2022 03-30 (2022) 25 11-15 (2022) 29 229
1984 04-10 (1984) 30 11-15 (1984) 29 218
2016 04-10 (2016) 32 11-14 (2016) 32 217
1994 04-23 (1994) 32 11-12 (1994) 32 202
1981 04-22 (1981) 32 11-12 (1981) 31 203
1977 04-11 (1977) 32 11-12 (1977) 32 214
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19 minutes ago, SnowGoose69 said:

Trees mostly lost their leaves up there now so shouldn’t be a problem.  This may be their biggest event in November though since the November  20 2000 event  

I believe the 65” in 2014 was the greatest November event for east of Lake Erie. They have pure rocket fuel this time with the record 55° lake temperatures from the recent record warmth. The lake should be in the upper 40s by now. So it will just come down to how long the band stalls in any given location.

 

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2 hours ago, bluewave said:

Toronto just had their latest first freeze on record. But the first freeze this weekend in NYC will be around the average time since 2010. Islip tied their latest first freeze yesterday. Record -EPO will deliver the first widespread 20s of the season. Historic 500 mb heights near Alaska for this time of year. 

 

73DC3CD9-8774-4704-93D5-181E0FD575A3.png.ccb5ebad849b2603baea9c973b4f9311.png

 


 

Frost/Freeze Summary for NY CITY CENTRAL PARK, NY
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
Minimum 03-01 (2020) 10-31 (2020) 215
Mean 03-28 11-19 235
Maximum 04-16 (2014) 12-10 (2011) 255
2021 04-03 (2021) 32 11-23 (2021) 32 233
2020 03-01 (2020) 25 10-31 (2020) 32 243
2019 03-18 (2019) 32 11-08 (2019) 29 234
2018 04-09 (2018) 32 11-14 (2018) 32 218
2017 03-23 (2017) 23 11-10 (2017) 25 231
2016 04-10 (2016) 31 12-09 (2016) 29 242
2015 04-01 (2015) 32 11-24 (2015) 32 236
2014 04-16 (2014) 31 11-18 (2014) 24 215
2013 03-23 (2013) 32 11-12 (2013) 31 233
2012 03-27 (2012) 30 11-06 (2012) 31 223
2011 03-29 (2011) 31 12-10 (2011) 32 255
2010 03-27 (2010) 29 12-04 (2010) 32 251



 

 

Those super (record) warm SSTs north of Australia is going to have a really profound effect on the global heat budget. The MJO/tropical forcing is going to want to continue to redevelop over and over in phases 4-6, in a positive feedback loop, basically a standing wave. The La Niña base state is only serving to re-enforce that even more 

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11 minutes ago, snowman19 said:

Those super warm SSTs north of Australia is going to have a really profound effect on the global heat budget. The MJO/tropical forcing is going to want to continue to redevelop over and over in phases 4-6, in a positive feedback loop, basically a standing wave. The La Niña base state is only serving to re-enforce that even more 

The rapid expansion of the Western Pacific warm pool has been slowing the MJO in phases 5-7.

 


Here we show that rapid warming over the tropical oceans during 1981–2018 has warped the MJO life cycle, with its residence time decreasing over the Indian Ocean by 3–4 days, and increasing over the Indo-Pacific Maritime Continent by 5–6 days. We find that these changes in the MJO life cycle are associated with a twofold expansion of the Indo-Pacific warm pool, the largest expanse of the warmest ocean temperatures on Earth. The warm pool has been expanding on average by 2.3 × 105 km2 (the size of Washington State) per year during 1900–2018 and at an accelerated average rate of 4 × 105 km2(the size of California) per year during 1981–2018

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24 minutes ago, snowman19 said:

Those super (record) warm SSTs north of Australia is going to have a really profound effect on the global heat budget. The MJO/tropical forcing is going to want to continue to redevelop over and over in phases 4-6, in a positive feedback loop, basically a standing wave. The La Niña base state is only serving to re-enforce that even more 

That sounds like we might be headed to a semi permanent la nina state (at least until average temperatures get re-calibrated.)

However the enso response may be unconventional in terms of sensible weather because we are seeing major alterations in sea currents and SST in other parts of the world too (including the western Atlantic and the Gulf Stream.)

 

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13 minutes ago, LibertyBell said:

That sounds like we might be headed to a semi permanent la nina state (at least until average temperatures get re-calibrated.)

However the enso response may be unconventional in terms of sensible weather because we are seeing major alterations in sea currents and SST in other parts of the world too (including the western Atlantic and the Gulf Stream.)

 

Yeah, we have entered a semi permanent La Niña background state since the super El Niño in 15-16 with giant La Niña ridges south of Alaska and along the East Coast. So the last 7 winters have all been warmer to record warm across the area. Snowfall has been modulated by how much blocking we get.

 

3212BC14-DCE4-49B0-A918-20DD06B681A9.png.520b520df73b21e48ccfcd53caf10f54.png

 

 

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18 minutes ago, EastonSN+ said:

Yeah the La Nina background state has not been ideal since 2016. Kind of amazing we had 3 above normal snowfall winters in this timeframe (17/18 almost 200% of average IMBY). 

One of our greatest snowstorms of all time in January 2016 occurred after the +13.3 December. This was followed by the snowiest March on record for Long Island in 2018 following the 80° at Newark in February. The 16-17 winter had record 60s warmth the day before the February blizzard. Last winter ACY was in the 60s the day before their record January snowfall. So warm winters can be great for snow if the blocking decides to show up between the record warmth. But we can always strikeout in the snowfall department like in 18-19 and 19-20 if there is no blocking.  But even both those years had record November and May snows. 

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29 minutes ago, bluewave said:

One of our greatest snowstorms of all time in January 2016 occurred after the +13.3 December. This was followed by the snowiest March on record for Long Island in 2018 following the 80° at Newark in February. The 16-17 winter had record 60s warmth the day before the February blizzard. Last winter ACY was in the 60s the day before their record January snowfall. So warm winters can be great for snow if the blocking decides to show up between the record warmth. But we can always strikeout in the snowfall department like in 18-19 and 19-20 if there is no blocking.  But even both those years had record November and May snows. 

Well we may have blocking in December this year which should help as long as the Pacific isn't a complete dumpster fire like last year

MJO going to 7 to end November and then slow down but there are some hints it could go to 8. 

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On 11/15/2022 at 6:32 PM, bluewave said:

The big December climate shift occurred around 2011 following the epic run of cold and snowy Decembers from 2002 to 2010. The SSTs were much colder north of Australia back during those years. Also much more Atlantic blocking and colder SSTs east of our area. 
 

Since 2011, we had had the warmest run of Decembers on record. Plenty of MJO 5-6 forcing and a very +AO and +NAO pattern. Also notice the record warm pool east of New England. This record warm pool north of Australia had become a reoccurring theme. Notice the VP anomalies all focused in the 5-6 MJO region over the last decade.
 

E63D444B-E1B7-4ED7-A257-B5A82A8334CA.png.ec7515cb8a789e402132c0253e74d0a0.png

AE364E7A-2859-4A7F-8316-86B3F00FBEEC.png.2bfc73d882b978a299db0bbed99ca809.png

FEF94AD7-20DD-45C2-A767-8BD088AD1816.png.f34d2794e15a6f36b37b0a69fa046947.png

 


A336F837-568C-4826-8304-1EAB75B62BE7.png.8affbb53ed212cb88eda38dc6185feb7.png


C3E819DA-D341-4911-AE66-0CFAFBED0E9D.png.c5ea8acd25261a7fde8b824c6c0d8864.png

 


FF7A2246-9ECD-4D3A-83EB-6AB63F31F21B.png.1a934e4318b80eae92a6d6b3c9ead387.png

As a follow-up to the climate shift you mentioned since around 2011, this is interesting:
 

 

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46 minutes ago, jconsor said:

As a follow-up to the climate shift you mentioned since around 2011, this is interesting:
 

 

I wonder if the recent change to +AO/+NAO is related to the change in tropical forcing and west PAC warm pool (Ninas) we discussed earlier today with those super warm SSTs north of Australia the last several years

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3 hours ago, bluewave said:

Probably will need a big enough Great Lakes system around Thanksgiving for a decent wave break to pump the Greenland block into early December. Then it comes down to whether the Pacific wants to play ball or not. It’s been a challenge getting a favorable Pacific during our Atlantic blocking intervals since last winter. 
 

A379A995-53B0-4FA5-A56E-35DB5164223F.thumb.png.a62bc0cc8b184b0317c06ccdcc8a2f64.png

98C1BC6C-97CB-4A53-8828-0CB05AE73648.thumb.png.616eb0263d39c41a8c3c93bd924be351.png


 

 

Yes possible big rain storm around thanksgiving with very warm temps

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