2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#241 Postby SFLcane » Mon Apr 20, 2020 8:57 am

cycloneye wrote:
Chris90 wrote:Alright, I mentioned in my post last night that I would post the current oceanic heat content with some comparisons to the oceanic heat content at this point in March for some other seasons which ended up being active.
NOW 2020:
https://i.imgur.com/l9QfPVC.jpg

2017:
https://i.imgur.com/XA1Kmmu.jpg

2010:
https://i.imgur.com/d9iMfdc.jpg

2005:
https://i.imgur.com/g0TgnEU.jpg

From what I can tell, 2010 seems to be about the closest match to the current heat content out in the Atlantic. I believe 2010 set a couple of record warm anomalies in the MDR region in the spring/early summer, it even beat out 2005, and the MDR was active that year, it was a very impressive season.
Now, other factors go into a season besides SST anomalies and the heat content that is available, but with heat content like this currently available, I believe it is quite possible it will continue to build, and we may end up seeing some pretty impressive warmth in the MDR during the hurricane season, and if you look at current SST anomalies, there already is.

On a quick side note, speaking of warm anomalies in the MDR, on a couple of occasions I’ve seen mention of the term Atlantic Nino. Currently along the equator between S. America and Africa, there are quite a few warm anomalies, does anyone know if this is an Atlantic Nino currently? I haven’t seen a lot of info on the subject, so I don’t know if there are any definitions for it, or qualifications that have to be met, or if this is just a loose term that hasn’t really been defined or given a lot of scientific merit.

I haven’t really set down numbers yet in my head, I’m watching other factors too and just waiting patiently to get past the spring predictability barrier, and I know that my numbers will probably change, possibly by quite a bit, once we get into May and we all start posting our numbers in the seasonal numbers thread. One idea I am starting to give more weight too though is the possibility of some pretty decent ACE generation out in the MDR this year. I think we have the potential setting up for some CV long-trackers, and with SSTs and heat content building like this in March, I think they will have a pretty high ceiling, maybe Irma or Isabel-like potential. NOTE: I am not forecasting another Irma or Isabel, just saying I think conditions may be setting up for a storm to potentially reach those kind of heights intensity-wise if all other factors come together in that storm’s favor.
I am really looking forward to when the seasonal thread opens up and everyone starts posting their thoughts and numbers, and I’m looking forward to passing the SPB. It’ll be interesting if forecasts start to flip once we get past that point.


Do you have the link to these Heat Content charts?



To add to this... I've never seen values nearly this high this time of year in the NW Caribbean and FL straits though. :eek:
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#242 Postby cycloneye » Mon Apr 20, 2020 9:31 am

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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#243 Postby chaser1 » Mon Apr 20, 2020 9:43 am

The above graphic brings two questions to mind. Anyone out there happen to know what the earliest date for an Atlantic "Major" hurricane (Cat 3+) on record was? Other question was how many years (if any) had 3 or more Atlantic hurricanes formed prior to August 1st?
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#244 Postby boca » Mon Apr 20, 2020 9:52 am

chaser1 wrote:The above graphic brings two questions to mind. Anyone out there happen to know what the earliest date for an Atlantic "Major" hurricane (Cat 3+) on record was? Other question was how many years (if any) had 3 or more Atlantic hurricanes formed prior to August 1st?


It was hurricane Alma that formed June 8th in 1966
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#245 Postby cycloneye » Mon Apr 20, 2020 12:20 pm

Comming from him that in general is not always bullish is big.

 https://twitter.com/JohnMoralesNBC6/status/1252204113317765120


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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#246 Postby USTropics » Mon Apr 20, 2020 2:03 pm

chaser1 wrote:The above graphic brings two questions to mind. Anyone out there happen to know what the earliest date for an Atlantic "Major" hurricane (Cat 3+) on record was? Other question was how many years (if any) had 3 or more Atlantic hurricanes formed prior to August 1st?


Hurricane Alex in 2010 and Hurricane Audrey in 1957 I believe are tied for lowest pressure systems in the Atlantic for the month of June.

Notable seasons with early hurricane activity (May-July) for modern satellite era:

1966 - 4 hurricanes, 5 total storms
Image

2005 - 3 hurricanes, 7 total storms
Image


Notable seasons with early hurricane activity (May-July) for pre-modern satellite era:

1886 - 4 hurricanes, 5 total storms
Image

1916 - 3 hurricanes, 3 total storms
Image

1933 - 2 hurricanes, 5 total storms
Image

1934 - 3 hurricanes, 3 total storms
Image

1959 - 3 hurricanes, 5 total storms
Image
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#247 Postby TheStormExpert » Mon Apr 20, 2020 4:00 pm

cycloneye wrote:Comming from him that in general is not always bullish is big.

https://twitter.com/JohnMoralesNBC6/status/1252204113317765120

Like I said before, just hope that -NAO finally turns up in August and September or else things might get ugly. :eek:
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#248 Postby TheStormExpert » Mon Apr 20, 2020 4:03 pm

USTropics wrote:
chaser1 wrote:The above graphic brings two questions to mind. Anyone out there happen to know what the earliest date for an Atlantic "Major" hurricane (Cat 3+) on record was? Other question was how many years (if any) had 3 or more Atlantic hurricanes formed prior to August 1st?


Hurricane Alex in 2010 and Hurricane Audrey in 1957 I believe are tied for lowest pressure systems in the Atlantic for the month of June.

Notable seasons with early hurricane activity (May-July) for modern satellite era:

1966 - 4 hurricanes, 5 total storms
https://i.imgur.com/2IiCFjG.png

2005 - 3 hurricanes, 7 total storms
https://i.imgur.com/g1VhpeY.png


Notable seasons with early hurricane activity (May-July) for pre-modern satellite era:

1886 - 4 hurricanes, 5 total storms
https://i.imgur.com/prjQizL.png

1916 - 3 hurricanes, 3 total storms
https://i.imgur.com/y58ldbH.png

1933 - 2 hurricanes, 5 total storms
https://i.imgur.com/7jn3QZc.png

1934 - 3 hurricanes, 3 total storms
https://i.imgur.com/luYkA3Z.png

1959 - 3 hurricanes, 5 total storms
https://i.imgur.com/6671zjP.png

I’m starting to think 1933 and 2005 are the closest analog years on that list at the moment, hopefully I’m wrong!
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#249 Postby toad strangler » Mon Apr 20, 2020 5:07 pm

cycloneye wrote:Comming from him that in general is not always bullish is big.

https://twitter.com/JohnMoralesNBC6/status/1252204113317765120


Morales is notoriously hard to impress when it comes to the tropics. Color me VERY intrigued at NOAA's forecast a month from now.
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#250 Postby Steve » Mon Apr 20, 2020 9:30 pm

Kazmit wrote:
TheStormExpert wrote:

What exactly is he saying!? :lol:

I couldn't comprehend that tweet either. :lol:


Phases 2 and 3 of the MJO coupled with forcing mechanisms due to sea surface temperature profiles in the Pacific. Plus everything else.

Hey StormExpert - 1933 and 2005 is like the kiss of death. haha. Hopefully not.
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#251 Postby USTropics » Tue Apr 21, 2020 6:34 am

Continuing the discussion of early season activity and possible indicators, I've created 2 subsets of composites for the months of June and July only. The first subset will be active years, particularly weighted towards active MDR seasons that had at least one MDR storm before August (see list below for details). This has also been weighted towards the modern satellite era. The second subset will be inactive years that had very limited MDR activity or early season activity. The first image will always be the active years selected, followed by inactive years selected.

Active years selected (10 total)
1959 - 5 tropical systems (3 hurricanes) developed before August
1966 - Record 4 hurricanes developed before August
1969 - 4th most active Atlantic season, 2 MDR systems before August
1989 - Active early MDR (2 hurricanes)
1990 - 8 hurricanes total in season and active MDR before August
1995 - 2 hurricanes and 5 total storms before August
2003 - 2 hurricanes and 7 total storms before August
2005 - Most active Atlantic season, 3 hurricanes (2 major) before August
2008 - 2 hurricanes (1 MDR) before August
2010 - 3rd most active Atlantic season, heavy MDR activity

Inactive years selected (10 total)
1977, 1982, 1983, 1986, 1987, 1992, 1994, 2002, 2006, 2014

Sea Surface Temperature Anomalies
Image
Image

Sea Level Pressure
Image
Image

Surface Precipitable Water
Image
Image

500mb Geopotential Height
Image
Image

Relative Humidity
300mb
Image
Image

500mb
Image
Image

850mb
Image
Image

Vector Wind
200mb
Image
Image

500mb
Image
Image

850mb
Image
Image

Zonal Wind
200mb
Image
Image

500mb
Image
Image

850mb
Image
Image

Potential Temperature
850mb
Image
Image
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#252 Postby SFLcane » Tue Apr 21, 2020 8:01 am

In my years of tracking hurricanes i don't think i have seen sst's around FL and the bahamas this extreme warm ( this early). If things don't change it may very well have consequences if any tropical identity gets in there. :eek:

Image
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#253 Postby NotSparta » Tue Apr 21, 2020 8:43 am

I'm kind of seeing a +AMO pattern, but stopping around Spain's latitude. Generally cool subtropics in the west, but warm east, w/ tropics generally leaning warm

Image
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#254 Postby chaser1 » Tue Apr 21, 2020 8:48 am

boca wrote:
chaser1 wrote:The above graphic brings two questions to mind. Anyone out there happen to know what the earliest date for an Atlantic "Major" hurricane (Cat 3+) on record was? Other question was how many years (if any) had 3 or more Atlantic hurricanes formed prior to August 1st?


It was hurricane Alma that formed June 8th in 1966


Pretty early. That's a date that would be pretty hard to beat.
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#255 Postby SFLcane » Tue Apr 21, 2020 9:01 am

NotSparta wrote:I'm kind of seeing a +AMO pattern, but stopping around Spain's latitude. Generally cool subtropics in the west, but warm east, w/ tropics generally leaning warm

https://uploads.disquscdn.com/images/ba5be984a6b39dc2d8508295fff23d7288c1fefb97964b428b55c55c417e1f93.png


Just wow on the western part of the basin.
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#256 Postby DorkyMcDorkface » Tue Apr 21, 2020 9:03 am

NotSparta wrote:I'm kind of seeing a +AMO pattern, but stopping around Spain's latitude. Generally cool subtropics in the west, but warm east, w/ tropics generally leaning warm

https://uploads.disquscdn.com/images/ba5be984a6b39dc2d8508295fff23d7288c1fefb97964b428b55c55c417e1f93.png


According to this chart, it technically qualifies as one, but it's not a classic "EOF #1" signature. More like EOF #3, particularly in the western and far north Atlantic.
Image
Still, unlike the past two years, the subtropics aren't hogging most of the warmth this year.
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#257 Postby SFLcane » Tue Apr 21, 2020 9:15 am

DorkyMcDorkface wrote:
NotSparta wrote:I'm kind of seeing a +AMO pattern, but stopping around Spain's latitude. Generally cool subtropics in the west, but warm east, w/ tropics generally leaning warm

https://uploads.disquscdn.com/images/ba5be984a6b39dc2d8508295fff23d7288c1fefb97964b428b55c55c417e1f93.png


According to this chart, it technically qualifies as one, but it's not a classic "EOF #1" signature. More like EOF #3, particularly in the western and far north Atlantic.
https://i.ibb.co/tpKxhk0/EAPS5y3-Xo-A0-Twdt.jpg
Still, unlike the past two years, the subtropics aren't hogging most of the warmth this year.


That's about right...Not a classic +AMO because of the cool waters near Greenland. But definitely moreso than the last few years.
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#258 Postby aspen » Tue Apr 21, 2020 10:51 am

I’m getting a really bad feeling about the Gulf and nearby parts of the Caribbean. If it’s still running several degrees warmer than normal during the peak of the season, something really big can blow up really fast. I wouldn’t even be surprised if we get a June or July hurricane in there, especially since there are signs pointing towards early-season activity.
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#259 Postby cycloneye » Tue Apr 21, 2020 12:27 pm

SFLcane wrote:In my years of tracking hurricanes i don't think i have seen sst's around FL and the bahamas this extreme warm ( this early). If things don't change it may very well have consequences if any tropical identity gets in there. :eek:

https://i.imgur.com/y9008vE.png


Much closer look by screenshot.

Image
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#260 Postby Hurricaneman » Tue Apr 21, 2020 1:45 pm

DorkyMcDorkface wrote:
NotSparta wrote:I'm kind of seeing a +AMO pattern, but stopping around Spain's latitude. Generally cool subtropics in the west, but warm east, w/ tropics generally leaning warm

https://uploads.disquscdn.com/images/ba5be984a6b39dc2d8508295fff23d7288c1fefb97964b428b55c55c417e1f93.png


According to this chart, it technically qualifies as one, but it's not a classic "EOF #1" signature. More like EOF #3, particularly in the western and far north Atlantic.
https://i.ibb.co/tpKxhk0/EAPS5y3-Xo-A0-Twdt.jpg
Still, unlike the past two years, the subtropics aren't hogging most of the warmth this year.


Looks like a mix of EOF 1 and EOF 3
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