Seasonal Indicators (Beyond Day 16): Instability / SST's / MSLP / Steering / Sal

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stormwise

Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#441 Postby stormwise » Mon May 16, 2016 10:54 pm

wxman57 wrote:
stormwise wrote:http://www.youtube.com/watch?v=S3SKHuP0hW8
Interesting.


A bit overly dramatic, and incorrect in several areas. PDO is currently positive (warm), not negative, and current AMO is negative (cold), not positive. I'm seeing nothing to suggest ACE over 200 this season. However, I still say we need to watch the western Caribbean & Gulf for major hurricane activity this year.



Not seeing a cold AMO since the mid-1990s we have been in a warm phase ,PDO is positive retrograde atm yes but we are in the transition phase to nina. I think around August we will have a clearer picture with the PDO being matched or miss-matched.



Image
AMO Calculated by NOAA/ESRL (CDC) (last update 15-APR-2016).
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#442 Postby wxman57 » Tue May 17, 2016 7:11 am

stormwise wrote:
wxman57 wrote:
stormwise wrote:http://www.youtube.com/watch?v=S3SKHuP0hW8
Interesting.


A bit overly dramatic, and incorrect in several areas. PDO is currently positive (warm), not negative, and current AMO is negative (cold), not positive. I'm seeing nothing to suggest ACE over 200 this season. However, I still say we need to watch the western Caribbean & Gulf for major hurricane activity this year.



Not seeing a cold AMO since the mid-1990s we have been in a warm phase ,PDO is positive retrograde atm yes but we are in the transition phase to nina. I think around August we will have a clearer picture with the PDO being matched or miss-matched.



]http://i67.tinypic.com/28qqgt0.gif
AMO Calculated by NOAA/ESRL (CDC) (last update 15-APR-2016).


The AMO went cold in 2014 and is now the coldest it's been since 1950, using the Klotzbach/Gray method. Their method looks at temperatures farther north than the standard way of calculating, as they've found it's the far northern Atlantic that is a better indicator.

The graphics below only go out to mid 2015. I'll get the new data from Phil. I believe he tweeted that temps now are even cooler.

Image

Image
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#443 Postby cycloneye » Tue May 17, 2016 7:21 am

Revealing stat by Dr Phil Klotzbach about U.S landfalls.

Philip Klotzbach ‏@philklotzbach ·

The United States has been impacted by over twice as many hurricanes in #LaNina compared with #ElNino.

Image
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#444 Postby wxman57 » Tue May 17, 2016 7:24 am

This is the area Klotzbach/Gray look at for AMO status - from 50N-60N and 10W-50W. As you can see, temps are much cooler than normal.

Image
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#445 Postby stormwise » Tue May 17, 2016 7:40 am

Apologizes and i stand corrected , thankyou for your explanation 57.
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#446 Postby WPBWeather » Tue May 17, 2016 7:50 am

cycloneye wrote:Revealing stat by Dr Phil Klotzbach about U.S landfalls.

Philip Klotzbach ‏@philklotzbach ·

The United States has been impacted by over twice as many hurricanes in #LaNina compared with #ElNino.

Image


Sort by of goes against his more conservative number guesses for this year?
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#447 Postby Yellow Evan » Tue May 17, 2016 8:19 am

WPBWeather wrote:
Sort by of goes against his more conservative number guesses for this year?


Yes, but we have other factors (SST EPAC configuration, AMO) that offset the La Nina this year, hence the conservative numbers.
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#448 Postby wxman57 » Tue May 17, 2016 9:07 am

stormwise wrote:Apologizes and i stand corrected , thankyou for your explanation 57.


No apology necessary. There are 2 ways of calculating AMO. One way looks at temps farther south (which are warm) and the other (Klotzbach/Gray) focuses on temps between 50-60N.
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#449 Postby NDG » Wed May 18, 2016 7:41 am

All I know is that the same area Dr Phil uses for their AMO index has warmed up in the past 45 days, perhaps the reason why the MDR has not cooled down that much yet as they predicted?

Image
Image
Image
Image
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#450 Postby SFLcane » Wed May 18, 2016 4:56 pm

NDG so did 2013.. :(
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#451 Postby tarheelprogrammer » Wed May 18, 2016 5:12 pm

SFLcane wrote:NDG so did 2013.. :(


Here is the May 2013 SST Anomaly Map. Some similarities but not quite as warm all around the Atlantic.

Image
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#452 Postby Darvince » Wed May 18, 2016 5:53 pm

In 2013, the SSTs were not the problem. It was literally everything else that went wrong.
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#453 Postby NDG » Wed May 18, 2016 8:30 pm

Lol, 2013 is like talking about 2005, the opposite of it.
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#454 Postby tarheelprogrammer » Wed May 18, 2016 9:05 pm

NDG wrote:Lol, 2013 is like talking about 2005, the opposite of it.


Agreed though some similarities to both this season. No where near either one in my opinion. I am no MET so not a forecast. Just posted image above of 2013 to show what SST anomalies were.
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#455 Postby Yellow Evan » Wed May 18, 2016 9:44 pm

Darvince wrote:In 2013, the SSTs were not the problem. It was literally everything else that went wrong.


Yes it was. The warmest SST's anomalies were confided to the subtropics, allowing for sinking air over the tropics.
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#456 Postby WPBWeather » Wed May 18, 2016 9:59 pm

NDG wrote:All I know is that the same area Dr Phil uses for their AMO index has warmed up in the past 45 days, perhaps the reason why the MDR has not cooled down that much yet as they predicted?

Image
Image
Image
Image


As I understand it, the Gray PK area is one of TWO areas Pro Mets can use. It is not the definitive measurement area however.
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#457 Postby cycloneye » Fri May 20, 2016 4:13 pm

And the parade begins.

Image
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#458 Postby tarheelprogrammer » Fri May 20, 2016 4:18 pm

cycloneye wrote:And the parade begins.

Image


What does the map show?
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#459 Postby WPBWeather » Fri May 20, 2016 4:25 pm

tarheelprogrammer wrote:
cycloneye wrote:And the parade begins.

http://i.imgur.com/cG6IcKS.gif


What does the map show?


Tropical waves, lower right>
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Re: 2016 indicators: Instability / SST's / MSLP / Steering / Sal

#460 Postby tarheelprogrammer » Fri May 20, 2016 4:30 pm

Do they normally start rolling off this early in the year?
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