ATL: OTTO - Post-tropical - Discussion

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cycloneye
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Re: ATL: INVEST 97L - Discussion - (Code Orange)

#101 Postby cycloneye » Thu Sep 30, 2010 6:47 pm

8 PM TWO=Remains at 30%

A LARGE AND COMPLEX AREA OF DISTURBED WEATHER ...ASSOCIATED WITH TWO
TROPICAL WAVES...EXTENDS FROM THE LESSER ANTILLES EASTWARD INTO THE
ATLANTIC FOR SEVERAL HUNDRED MILES. THIS SYSTEM SHOWS SOME SIGNS
OF ORGANIZATION...AND UPPER-LEVEL WINDS ARE FORECAST TO BE
MARGINALLY FAVORABLE FOR DEVELOPMENT AS THE SYSTEM MOVES WESTWARD
TO WEST-NORTHWESTWARD AT 15 TO 20 MPH. THERE IS A MEDIUM
CHANCE...30 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE
DURING THE NEXT 48 HOURS.

Image

Look at that circle, how big it is.
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Re: ATL: INVEST 97L - Discussion - (Code Orange)

#102 Postby msbee » Thu Sep 30, 2010 7:08 pm

cycloneye wrote:8 PM TWO=Remains at 30%

A LARGE AND COMPLEX AREA OF DISTURBED WEATHER ...ASSOCIATED WITH TWO
TROPICAL WAVES...EXTENDS FROM THE LESSER ANTILLES EASTWARD INTO THE
ATLANTIC FOR SEVERAL HUNDRED MILES. THIS SYSTEM SHOWS SOME SIGNS
OF ORGANIZATION...AND UPPER-LEVEL WINDS ARE FORECAST TO BE
MARGINALLY FAVORABLE FOR DEVELOPMENT AS THE SYSTEM MOVES WESTWARD
TO WEST-NORTHWESTWARD AT 15 TO 20 MPH. THERE IS A MEDIUM
CHANCE...30 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE
DURING THE NEXT 48 HOURS.

Image

Look at that circle, how big it is.


with the size of that, no way that a lot of the islands aren't going to get a good dose of bad weather.
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#103 Postby HURAKAN » Thu Sep 30, 2010 7:12 pm

Image

Latest - looking very impressive
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#104 Postby northjaxpro » Thu Sep 30, 2010 7:12 pm

Looking at WV imagery, I am amazed at the size also of the very large TUTT moving west over the Central Atlantic as it is now approaching Bermuda. I am wondering if it will continue moving west and put the 'ole squeeze" on the trough axis already along the East Coast. I haven't looked at the model runs today, but to me it seems that TUTT could play a major role with things going into the next several days for weather on the East Coast and also wrt 97L.

Just a thought.
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Re: ATL: INVEST 97L - Discussion - (Code Orange)

#105 Postby Weatherfreak000 » Thu Sep 30, 2010 7:20 pm

Image

Vorticity is fantastic....30% is too small imo...
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Re: ATL: INVEST 97L - Discussion - (Code Orange)

#106 Postby cycloneye » Thu Sep 30, 2010 7:27 pm

00z Best Track

AL, 97, 2010100100, , BEST, 0, 125N, 531W, 25, 1009, DB

ftp://ftp.tpc.ncep.noaa.gov/atcf/tcweb/ ... 010.invest
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#107 Postby Vortex » Thu Sep 30, 2010 7:30 pm

:uarrow: looks good luis..the models that develop this system have placement right there...
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#108 Postby plasticup » Thu Sep 30, 2010 7:32 pm

Vortex wrote::uarrow: looks good luis..the models that develop this system have placement right there...

Those models are still in the minority. A wave this size may not be able to organize in time.
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#109 Postby Gustywind » Thu Sep 30, 2010 7:35 pm

Image
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#110 Postby Gustywind » Thu Sep 30, 2010 7:41 pm

Image
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Re: ATL: INVEST 97L - Discussion - (Code Orange)

#111 Postby OURAGAN » Thu Sep 30, 2010 7:50 pm

But for me, the system at 12,5 N / 45 W seems to have a much better opportunity and looks much better organized.
What do you tkinK?
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Re: ATL: INVEST 97L - Discussion - (Code Orange)

#112 Postby Macrocane » Thu Sep 30, 2010 8:05 pm

I think 30% is right, the marginally favorable winds and its size will make it a slow organizing system, remember that the chances are 30% in 48 hours beyond that they could be higher.
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Re: ATL: INVEST 97L - Discussion - (Code Orange)

#113 Postby hurricaneCW » Thu Sep 30, 2010 8:07 pm

The whole Caribbean and Western Atlantic are covered by very low pressures and widespread convection. In fact, it looks nothing like the Atlantic you would typically see. Normally you have one or two smaller areas of convection and either they consolidate or not. However, 97L is massive, the remaining convection in the Caribbean is massive, the whole gyre is like the western Pacific. If the Atlantic was actually somewhat larger, we would have probably seen an insane super typhoon like storm develop in our basin.

Since our basin is much smaller, we get several lows that compete against each other and in this type of setup, by the time one low begins to take over, they are torn apart by unfavorable conditions and cooler water temperatures. This is why we struggled to hard just to get a name out of that mess in the Caribbean last week and now most of this week, and after all that, we barely got a named storm. The same idea will probably happen with this one, it's a large area of convection and low pressure that will struggle to organization because of its size and other lows around it fighting for the same energy.

I could see 97L becoming the next named storm, but I doubt it becomes anything more than another tropical storm although it will be another large one packed with tons of moisture.
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Re: ATL: INVEST 97L - Discussion - (Code Orange)

#114 Postby cycloneye » Thu Sep 30, 2010 8:12 pm

large one packed with tons of moisture.


If it comes towards the Eastern Caribbean,it would be dumping more rain on top of what some of the islands have recieved this year (Record Rainfall totals)

Here is an example of one place.

CLIMATE...SEPT 2010 WILL LIKELY RANK AS THE 10TH WETTEST SEPT ON
RECORD AT THE SJU LMM INTL ARPT WITH A TOTAL OF 8.86 INCHES OF RAIN
ASSUMING NO MEASURABLE PRECIP FALLS AT THE ARPT TODAY. A TOTAL OF
66.22 INCHES OF RAIN HAS BEEN MEASURED SO FAR THIS YEAR. WITH STILL
THREE MONTHS LEFT IN THE CALENDAR YEAR 2010 ALREADY RANKS AS THE 9TH
WETTEST YEAR ON RECORD AND CONTINUES WELL ON TRACK TO FINISH AS THE
WETTEST YEAR ON RECORD.
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Re: ATL: INVEST 97L - Discussion - (Code Orange)

#115 Postby abajan » Thu Sep 30, 2010 8:27 pm

cycloneye wrote:
large one packed with tons of moisture.


If it comes towards the Eastern Caribbean,it would be dumping more rain on top of what some of the islands have recieved this year (Record Rainfall totals)

Here is an example of one place.

CLIMATE...SEPT 2010 WILL LIKELY RANK AS THE 10TH WETTEST SEPT ON
RECORD AT THE SJU LMM INTL ARPT WITH A TOTAL OF 8.86 INCHES OF RAIN
ASSUMING NO MEASURABLE PRECIP FALLS AT THE ARPT TODAY. A TOTAL OF
66.22 INCHES OF RAIN HAS BEEN MEASURED SO FAR THIS YEAR. WITH STILL
THREE MONTHS LEFT IN THE CALENDAR YEAR 2010 ALREADY RANKS AS THE 9TH
WETTEST YEAR ON RECORD AND CONTINUES WELL ON TRACK TO FINISH AS THE
WETTEST YEAR ON RECORD.

This has been the wettest September ever recorded in Barbados (at least at the airport): 315.3 mm (12.4 inches). More rain will likely be added to that total tonight, compliments of 97L (which BTW has mysteriously vanished from the graphic at the top of this forum!)
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Re: ATL: INVEST 97L - Discussion - (Code Orange)

#116 Postby AnnularCane » Thu Sep 30, 2010 8:49 pm

Why is 97L missing from the Active Storms map?
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Re: ATL: INVEST 97L - Discussion - (Code Orange)

#117 Postby HURAKAN » Thu Sep 30, 2010 8:53 pm

AnnularCane wrote:Why is 97L missing from the Active Storms map?


Software error bc it hasn't been upgraded
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Re: ATL: INVEST 97L - Discussion - (Code Orange)

#118 Postby srainhoutx » Thu Sep 30, 2010 8:59 pm

HURAKAN wrote:
AnnularCane wrote:Why is 97L missing from the Active Storms map?


Software error bc it hasn't been upgraded



I'd choose to do the upgrade in off season. Being down in season just wouldn't be the best timing, would it? :wink:
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Re: ATL: INVEST 97L - Discussion - (Code Orange)

#119 Postby HURAKAN » Thu Sep 30, 2010 9:01 pm

srainhoutx wrote:
HURAKAN wrote:
AnnularCane wrote:Why is 97L missing from the Active Storms map?


Software error bc it hasn't been upgraded


I'd choose to do the upgrade in off season. Being down in season just would be the best timing, would it? :wink:


lol, I mean that 97L hasn't been upgraded, not the software. I didn't even know it had not been upgraded!!
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#120 Postby gatorcane » Thu Sep 30, 2010 9:03 pm

Looking better tonight. Wow a storm that may head into the Caribbean? Where is everybody???? It's a ghost town on here :eek:
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