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

#201 Postby TheStormExpert » Mon Apr 13, 2020 8:49 pm

AutoPenalti wrote:Still too early to sound the alarm bells imo, we are still in a spring barrier and this can flip back almost as immediately as this.

We are cutting it close though...

And if that fails, all we could hope for is a complete bust like in 2013. With this and the ongoing Coronavirus this is a potential recipe for disaster just waiting to happen! It gives me chills just thinking about it considering that evacuating to shelters would only worsen and not help the improvement of this virus.
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#202 Postby cycloneye » Tue Apr 14, 2020 9:51 am

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

#203 Postby Kingarabian » Tue Apr 14, 2020 3:47 pm

CyclonicFury wrote:The JJA VP anomaly pattern on the JMA model is similar to recent hyperactive Atlantic hurricane seasons. Let's hope some of these bullish forecasts don't come to fruition, because this is the most favorable the Atlantic has looked in April since at least 2013 (and possibly even 2010)...
https://twitter.com/TylerJStanfield/status/1249841040879759362


Anyone have composites of years that had this sinking motion setup that the JMA is showing but also extending further west and over 120E? Rather than it being from 150E-120W, the Euro 46 day continues this massive sinking motion setup from 120E->120W into June. The Euro has shown this setup has been in place since late March.

Edit: Even into July:
 https://twitter.com/BenNollWeather/status/1249841692477251584




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

#204 Postby cycloneye » Tue Apr 14, 2020 4:49 pm

Kingarabian This is CFSv2 for June, July and August.

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

#205 Postby gatorcane » Tue Apr 14, 2020 8:18 pm

Looks like trouble if you ask me :eek:

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

#206 Postby Hurricaneman » Wed Apr 15, 2020 12:34 am

gatorcane wrote:Looks like trouble if you ask me :eek:

https://i.postimg.cc/4x9nzTzX/anomw-4-13-2020.gif

With a capital T, and with the expected setup of the walker cell things are setting up for multiple long track hurricanes like 2017, 1999, 1998, 2003, 2004, 1995 and 1996 so we’re talking an ACE of between 175 to 200 with possibly higher.

Things could go wrong to slow down the hurricane season like with what happened in 2013 which is what I’m hoping for since we have a global crisis going on right now but it’s not in my top analogs due to that year being stuck in a spring pattern while this year seems to be moving in a more traditional direction if not a bit quicker towards a summer pattern especially in the Southeast US
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#207 Postby Kingarabian » Wed Apr 15, 2020 1:45 am

cycloneye wrote:Kingarabian This is CFSv2 for June, July and August.

[url]https://i.imgur.com/mlU9EsV.png[url]


Yeah pretty worrying stuff.
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#208 Postby chaser1 » Wed Apr 15, 2020 2:58 am

Well we're half way to May so here's my Atlantic tropical "throw-down" for the upcoming season - 19/11/5 225 ACE and 8 or more total landfalls with 5 or more striking the U.S. I've been vacillating back and forth between 19 & 20 named storms for a while but finally settled on the lessor.

I'd suggest that most begin to stock up on toilet paper now but given the shortage in stores, it seems like most of us have already checked THAT off their hurricane check list already :jump:

Overall I think a plethora of genesis will occur in the GOM, Caribbean, Bahamian waters. I do think this year will feature low latitude strong easterly waves however most remaining largely suppressed until until reaching approx. 50W-60W. Mid August I believe we'll see surface and mid level heights begin to slacken throughout the MDR resulting in a couple long trackers (ala Allen) to cruise westward through the Caribbean. Seems to me that the most persistent mid level height anomalies are presently occurring (and forecast) fairly well south with greatest ridging occurring around the Greater Antilles eastward. My guess is that strong westerlies will occur but primarily within the sub-tropical regions north of what I believe will be broad ridging generally occurring between 20N-25N. Sure, April is a long time from peak Hurricane Season but right now my guess is that W. Cuba/Florida Keys, the lower Texas coast, Jamaica, and Yucatan to Belize are apt to be most at risk of getting waxed with honorable mentions going out to Florida and South Carolina and a potential Grand Finale Cat2/3 threat to Cuba & Bahamas around Nov. 1st.
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#209 Postby TheStormExpert » Wed Apr 15, 2020 9:01 am

Hurricaneman wrote:
gatorcane wrote:Looks like trouble if you ask me :eek:

https://i.postimg.cc/4x9nzTzX/anomw-4-13-2020.gif

With a capital T, and with the expected setup of the walker cell things are setting up for multiple long track hurricanes like 2017, 1999, 1998, 2003, 2004, 1995 and 1996 so we’re talking an ACE of between 175 to 200 with possibly higher.

Things could go wrong to slow down the hurricane season like with what happened in 2013 which is what I’m hoping for since we have a global crisis going on right now but it’s not in my top analogs due to that year being stuck in a spring pattern while this year seems to be moving in a more traditional direction if not a bit quicker towards a summer pattern especially in the Southeast US

Or the NAO goes negative and most storms recurve into the open Atlantic a lot like 2010.
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#210 Postby AutoPenalti » Wed Apr 15, 2020 9:35 am

gatorcane wrote:Looks like trouble if you ask me :eek:

https://i.postimg.cc/4x9nzTzX/anomw-4-13-2020.gif

Sort of reminds me of 2017
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#211 Postby cycloneye » Wed Apr 15, 2020 11:12 am

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

#212 Postby aspen » Wed Apr 15, 2020 11:29 am


Well, if there’s some good news, it looks like they’re predicting slightly higher than average shear in the eastern MDR.
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#213 Postby TheStormExpert » Wed Apr 15, 2020 3:12 pm

aspen wrote:

Well, if there’s some good news, it looks like they’re predicting slightly higher than average shear in the eastern MDR.

That’s bad news, as it would likely delay development until the Caribbean or on approach similar to 2005 in a sense meaning more landfalling storms.
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#214 Postby TheStormExpert » Wed Apr 15, 2020 3:13 pm


That precipitation plume would suggest that the Gulf Coast is at highest risk of seeing a landfalling storm in the U.S.
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#215 Postby KAlexPR » Wed Apr 15, 2020 3:29 pm

aspen wrote:

Well, if there’s some good news, it looks like they’re predicting slightly higher than average shear in the eastern MDR.

Actually, the above normal shear is most likely easterly shear, which signals a stronger African Easterly Jet. This favors stronger tropical waves. Although this map does not show vectors, Ben Noll compared this projection to the CFSv2 and both are spatially similar and shows easterly shear.

 https://twitter.com/BenNollWeather/status/1250510409456484352


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

#216 Postby aspen » Wed Apr 15, 2020 3:37 pm

TheStormExpert wrote:
aspen wrote:

Well, if there’s some good news, it looks like they’re predicting slightly higher than average shear in the eastern MDR.

That’s bad news, as it would likely delay development until the Caribbean or on approach similar to 2005 in a sense meaning more landfalling storms.

I should’ve known I was trying too hard to find some good news in this.

Umm...there might be more SW Caribbean shear?
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#217 Postby OuterBanker » Wed Apr 15, 2020 3:40 pm

cycloneye wrote:Kingarabian This is CFSv2 for June, July and August.

https://i.imgur.com/mlU9EsV.png



This map has piqued my interest. If I were to read what I see I would be concerned on early threats this season. The wet weather in the central to eastern Gulf and southeast coast suggests tropical origin. My main question will be if it originates from the exceptionally warm Gulf or from the very warm Atlantic. The dry slot indicated between 40 and 60 west seems to me that most Atlantic waves (if there are any) will wait till after 60w to fully develop.

Of course, it also could simply mean a wet pattern for the areas with no tropical influence.

And it is also simply a model, and it’s in the future. Taken with just a grain of salt. FWIW.
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#218 Postby psyclone » Wed Apr 15, 2020 3:48 pm

it seems like the gulf is about 4 to 6 weeks ahead of schedule in terms of temps. While this may not make much of a difference at peak season (the gulf is always plenty warm then)...it could make the gulf more hospitable to early season chicanery where ohc is often lacking. Here locally in the tampa bay area our water temps are already in the low 80's in mid April. These temps are more typical of late May so we're a full month and a half ahead of schedule. Monday morning I had a low of 80...the earliest I have ever observed such a warm low.. For comparative purposes a normal low temp in July is around 75.
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#219 Postby ScottNAtlanta » Wed Apr 15, 2020 4:21 pm

I watched the live stream that Mark had with Ben Noll and he seems to be pretty bullish on a busy Atlantic this season
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Re: 2020 Indicators: SST's / SAL / MSLP / Steering / Shear / Instability / Sat Images

#220 Postby Kazmit » Thu Apr 16, 2020 10:45 am

Supposing this year is an active season, that would be 5 consecutive years of above-normal activity, starting in 2016. When's the last time there were at least 5 years in a row of above-normal seasons?
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