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Which November will show up? November 2015 obs/discussion


dmillz25

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Good ensemble agreement on a warm start to November. Don't be surprised if temps return

to the 70's Nov 1-7 as the SE Ridge really builds.

 

attachicon.gifecmwf-ens_z500a_namer_11.png

 

attachicon.gifB.png

there have been a few warm starts to November during el nino years...1982 was 79 on election day...2003 was 79 also during the first few days of November...1968 had a few warm days also...all three years had a snowfall before the second half of December...

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there have been a few warm starts to November during el nino years...1982 was 79 on election day...2003 was 79 also during the first few days of November...1968 had a few warm days also...all three years had a snowfall before the second half of December...

 

Yeah, November warmth has been winning out so far for El Nino Novembers in the 2000's.

Milder El Nino Novembers are ahead of cooler ones by a 3 to 2 lead.

 

NYC 2000's El Nino November departures 

 

2014....-2.4

2009...+4.1

2006...+4.8

2004...+1.1

2002....-1.1

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Average heights and 2M temps. over Hudson Bay are slated to rise steadily from early Nov. to mid-Dec., leveling off at +(14-18)F.   Accuweather long range shows just 7 of the next 45 days will be below normal.  I will go with +4---6degs.(a new record if so)F for the month.   A new daily record high will be set for the final 10 days of the month.   Dec. too will be on its way to a record (ala 2001) when temps. crash around X-Mas and spoil the show.   Lovers of cold weather set your alarms for one of last days of the year!

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uncle W, on 30 Oct 2015 - 6:18 PM, said:

October will end up averaging close to 58,2...out of the last 35 Octobers it would be tied for the 11th warmest...from 1940 to 1969 Octobers averaged 58.4...the 1970's-1990's were a degree cooler on average...

Good radiational cooling on many days this month led to coolest Oct here since 2009....avg here will be around 55.5 degrees...significant difference from the 58.2 degree average you mentioned for knyc.

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CIK62, on 31 Oct 2015 - 08:46 AM, said:

Average heights and 2M temps. over Hudson Bay are slated to rise steadily from early Nov. to mid-Dec., leveling off at +(14-18)F.   Accuweather long range shows just 7 of the next 45 days will be below normal.  I will go with +4---6degs.(a new record if so)F for the month.   A new daily record high will be set for the final 10 days of the month.   Dec. too will be on its way to a record (ala 2001) when temps. crash around X-Mas and spoil the show.   Lovers of cold weather set your alarms for one of last days of the year!

Using accuwx 45 day forecasts...tsk tsk.

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Using accuwx 45 day forecasts...tsk tsk.

Yeah, I know how flimsy this is.  Human meteorologists are not really directly involved with this anyway.  It is just the nearest grid point output to a given city(from the analog output)  that you want to know about over the next 45 days.  Then Accuweather post-processes this output with historical records they have amassed for all their customer markets.   This is so the analog does not fall off the wagon and indicate temps. and precip. amts. that have never occurred in the historical record.

I was using Kyle MacRitchie experimental site from now to near year's end for my comments and threw in Accuweather's thoughts.

 

http://www.atmos.albany.edu/student/macritch/showcfs2mplots.php?lat=58.99531118795094&lon=-84.5068359375&z=3

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Good radiational cooling on many days this month led to coolest Oct here since 2009....avg here will be around 55.5 degrees...significant difference from the 58.2 degree average you mentioned for knyc.

 

 

October average was 54.1F here, a full 4 degrees colder than NYC. -0.7 below average. Rainfall also made a comeback with 5.75" total.

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Pretty uniform October from Philly right up the LHV and into SW CT.

 

NYC...+1.1

LGA...+0.3

JFK....+0.8

ISP.....+0.8

BDR...+0.9

EWR..+0.6

TTN....+0.7

PHL....+1.0

POU...+0.8

Kind of reminds me of June, which was a lot closer to normal compared to May, Aug-Sep, and it looks like November will follow the May and September type trends of warmth. Some staggering positive departures the first 10 days. 

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Kind of reminds me of June, which was a lot closer to normal compared to May, Aug-Sep, and it looks like November will follow the May and September type trends of warmth. Some staggering positive departures the first 10 days. 

 

The big ridge stayed far enough to our west in October to avoid the larger temperature departures of previous months.

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Accuweather still showing just 7 days in Nov. will be below normal.   If you ask me, the first 3 weeks of Dec. will have even a worse ratio.  Look at that experimental output I posted earlier in this forum.   Not only is the mean temp. above normal over Hudson Bay for a whole month---till Dec. 20 say---not a single member of the ensemble is below normal during that stretch! 

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