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Azores #96L fails to complete transition into a Sub-Tropical Storm. Elsewhere, weak low pressure in Caribbean may linger into next week.
Days since last H. Landfall - US: Any 46 (Nate) , Major: 64 (Maria) Florida - Any: 74 (Irma) Major: 74 (Irma)
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Archives >> 2012 Storm Forum

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Ed DunhamAdministrator
Former Meteorologist & CFHC Forum Moderator (Ed Passed Away on May 14, 2017)


Reged: Sun
Posts: 2565
Loc: Melbourne, FL
Area of Interest - Hurricane Nadine in the Central Atlantic
      #93977 - Mon Sep 10 2012 12:48 AM

At 10/04Z, Invest 91L was located in the central Atlantic near 15N 35W and it was moving west at about 20 knots. Convection around the low center has increased on Sunday and additional slow development is possible over the next couple of days. Windshear is low, but dry air surrounds the system everywhere except to the south. SSTs are 28C. A west to west northwest movement should continue for a few days.
ED

(Title changed to reflect current storm status.)

Edited by Ed Dunham (Sat Sep 15 2012 01:16 AM)


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Ed DunhamAdministrator
Former Meteorologist & CFHC Forum Moderator (Ed Passed Away on May 14, 2017)


Reged: Sun
Posts: 2565
Loc: Melbourne, FL
Re: Area of Interest - Invest 91L in the Central Atlantic [Re: Ed Dunham]
      #93980 - Mon Sep 10 2012 11:51 PM

At 11/03Z, Invest 91L was located near 15.7N 42W. After a decline in convection on Monday, some increase is noted in the past few hours but the system is still somewhat disorganized. Movement continues to the west and once again the forward speed has increased to about 20 knots. The slower rate of organization should keep the system on a more west to west northwesterly track on Tuesday with projected track adjustments a little further to the west.

Windshear remains light, the dry air to the west has diminished a little and the SSTs along the track are still at 28C so additional development is still expected.
ED


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Ed DunhamAdministrator
Former Meteorologist & CFHC Forum Moderator (Ed Passed Away on May 14, 2017)


Reged: Sun
Posts: 2565
Loc: Melbourne, FL
Re: Area of Interest - Tropical Depression 14 in the Central Atlantic [Re: Ed Dunham]
      #93981 - Tue Sep 11 2012 09:53 AM

At 11/12Z, Invest 91L was located at 16.0N 42.6W with winds of 30 knots, central pressure at 1006MB and a movement to the west at 9 knots. Although no significant changes are visible since yesterday, NHC is again about to upgrade the system to a Tropical Depression. TD14 is approaching a col or weakness between two high pressure systems and the storm slowed down considerably last night. TD14 is another fairly large system that will be slow to develop and likely to remain at sea. SSTs are still at 28C.
ED


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MichaelA
Weather Analyst


Reged: Thu
Posts: 855
Loc: Pinellas Park, FL 27.83N 82.69W
Re: Area of Interest - Tropical Storm Nadine in the Central Atlantic [Re: Ed Dunham]
      #93985 - Thu Sep 13 2012 01:16 PM

Nadine, like so many others this year, is struggling with shear and dry air intrusion. The forecast track is a good one as far as I can tell - high pressure to the NE and an old frontal trough to its NW - so, right up the middle. Potential strength? Maybe Nadine will make minimal hurricane strength before shear gets the better of it.

(Just a title update to reflect current storm status.)

Edited by Ed Dunham (Thu Sep 13 2012 02:18 PM)


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srquirrely
Weather Watcher


Reged: Sat
Posts: 32
Loc: SARASOTA 27.27N 82.53W
Re: Area of Interest - Tropical Storm Nadine in the Central Atlantic [Re: MichaelA]
      #93986 - Thu Sep 13 2012 02:58 PM

... and then NOAA satellite images went offline ?!?!?

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MichaelA
Weather Analyst


Reged: Thu
Posts: 855
Loc: Pinellas Park, FL 27.83N 82.69W
Re: Area of Interest - Tropical Storm Nadine in the Central Atlantic [Re: srquirrely]
      #93996 - Mon Sep 17 2012 10:00 AM

It's looking like Nadine will be with us for another several days meandering near the Azores with a couple of the models turning it SW and West at days 4 and 5. NHC even has low confidence that Nadine will become post/extratropical by day 5. At any rate, the Azores are in for a prolonged period of nasty weather.

--------------------
Michael
2017: 15/9/4
2017 Actual: 17/10/6


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