Dr. Jeff Masters' WunderBlog

You only die twice: Atlantic's 2nd longest TS of all-time is dead
Posted by: Dr. Jeff Masters, 3:14 PM GMT on October 04, 2012 +39
The interminable, long-lived, pesky, persistent, perpetual, never-say-day, tenacious, non-stop, I'm-not-dead-yet, Energizer-bunny-like Methuselah of Atlantic tropical cyclones, Tropical Storm Nadine, finally met its permanent doom this morning, but not before bringing tropical storm conditions to the northwest Azores Islands. Sustained winds of 43 mph, gusting to 54 mph, were recorded at Lajes at 8 am local time, as Nadine was completing its transition to an extratropical storm. Today is Nadine's 2nd death; the storm also became extratropical for just over a day on September 22. Nadine logged 21.75 days as a tropical or subtropical cyclone as of 2 am today, making it the fifth longest-lived Atlantic tropical cyclone of all-time (tropical cyclones include tropical depressions, tropical storms, and hurricanes, but not extratropical storms.) Nadine's 21.25 days as a tropical or subtropical storm make it tied with Hurricane Ginger of 1971 as the Atlantic's second longest tropical storm on record. Only the San Ciriaco Hurricane of 1899 (28 days) was longer-lived. About one-quarter of this year's total Accumulated Cyclone Energy (ACE) in the Atlantic basin so far is due to Nadine. According to the official HURDAT Atlantic database, which goes back to 1851, here are the four previous Atlantic tropical cyclones have lasted longer than Nadine (thanks go to Brian McNoldy for these stats):

1) San Ciriaco Hurricane of 1899: 28 days
2) Ginger, 1971: 27.25 days
3) Inga, 1969: 24.75 days
4) Kyle, 2002: 22 days
5) Nadine, 2012: 21.75 days

The National Hurricane Center issued 88 advisories on Nadine, and lucky NHC hurricane specialist Lixion Avila got to write the final epitaph in today's 11 am EDT advisory: "Bye bye Nadine...what a long strange trip its been." See you again in 2018, Nadine.


Figure 1. MODIS satellite image of Hurricane Nadine taken at 11:35 am EDT September 30, 2012. At the time, Nadine was at peak strength, with top winds of 90 mph. Image credit: NASA.

Oscar becomes the 15th named storm of 2012
The first new tropical storm in the Atlantic since September 12 is Tropical Storm Oscar, which was upgraded to a 40 mph tropical storm on Wednesday night. Oscar won't be around very long, and will not be a threat to any land areas. The storm is already suffering significantly from moderate wind shear of 15 - 20 knots, which has exposed the low-level center to view, and pushed all of Oscar's heavy thunderstorms well away from the center of circulation, to the storm's east side. Wind shear is expected to rise to a high 20 - 25 knots tonight, and ocean temperatures will cool from 28°C today to 27°C by Friday. All of the computer models show Oscar ceasing to exist by Saturday, as the storm becomes absorbed by a cold front attached to a large extratropical storm. Oscar is a classic example of a weak, short-lived tropical cyclone that would have gotten missed before satellites came around. Oscar's formation brings this year's tally of named storms to fifteen, tying 2012 for 11th place for most tropical storms in a year. This puts 2012 in the top 10% of busiest Atlantic hurricane seasons for number of storms, since record keeping began in 1851. Despite the large number of named storms this year, we've had a pretty average number of strong hurricanes, so this year's Accumulated Cyclone Energy (ACE) is only about 20% higher than average for this time of year.


Figure 2. Morning satellite image of Tropical Storm Oscar.

Elsewhere in the Atlantic
None of the computers is predicting development of a new tropical cyclone over the Atlantic in the coming seven days. We will need to watch the waters between the Bahama Islands and Bermuda early next week, though, where the tail end of a cold front pushing off the U.S. East Coast may serve as the focal point for development of a tropical disturbance.

Jeff Masters
Categories: Hurricane
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402. KEEPEROFTHEGATE (Mod) 1:43 PM GMT on October 05, 2012    


Member Since: July 15, 2006 Posts: 143 Comments: 40383
404. JLPR2 1:45 PM GMT on October 05, 2012    
Quoting CaribBoy:
OOps sorry it's 1002MB



Deep into fantasy land, but still interesting.
Member Since: September 4, 2007 Posts: 7 Comments: 7487
405. trHUrrIXC5MMX 1:46 PM GMT on October 05, 2012    
would TWC eventually have something in their winter page like this..???

THE WEATHER CHANNEL IS ISSUING ADVISORIES ON WINTER STORM EUCLID...LOCATED ABOUT 45 MILES WEST-SOUTHWEST OF CHICAGO, IL.

A WINTER STORM APPEARS TO BE DEVELOPING ABOUT 35 MILES NORTH OF
OKLAHOMA CITY...AND IF THIS TREND CONTINUES ADVISORIES
WILL BE INITIATED LATER TODAY ON WINTER STORM FREYR. THIS LOW HAS A HIGH CHANCE...70 PERCENT...OF BECOMING A WINTER STORM DURING THE NEXT 12 TO 24 HOURS AS IT DRIFTS SLOWLY WESTWARD


lol
Member Since: April 23, 2011 Posts: 32 Comments: 7875
406. trHUrrIXC5MMX 1:49 PM GMT on October 05, 2012    
there will be more than 100 people in that chat..
Member Since: April 23, 2011 Posts: 32 Comments: 7875
407. AussieStorm 1:51 PM GMT on October 05, 2012    
Quoting trHUrrIXC5MMX:
there will be more than 100 people in that chat..

When, not now. lol
Member Since: September 30, 2007 Posts: 5 Comments: 13270
408. MTWX 2:03 PM GMT on October 05, 2012    
Quoting AussieStorm:


How about you to have few of these together.


What??!! They make PEACH Fresca??!!?? Gotta find me some of that!
Member Since: July 20, 2009 Posts: 22 Comments: 1215
409. GTcooliebai 2:03 PM GMT on October 05, 2012    
Good morning...almost all of the GFS Ensemble members are showing some type of development in the Caribbean at the end of the run. Link
Member Since: August 31, 2009 Posts: 0 Comments: 5166
410. TropicalAnalystwx13 2:03 PM GMT on October 05, 2012    
Surprised the GFS isn't showing anything substantial in the Caribbean of Gulf of Mexico with these pressure falls by the end of the run.

Member Since: July 6, 2010 Posts: 89 Comments: 25148
411. hydrus 2:09 PM GMT on October 05, 2012    
To far out, but neat to look at.
Member Since: September 27, 2007 Posts: 1 Comments: 14243
412. AussieStorm 2:10 PM GMT on October 05, 2012    
Quoting TropicalAnalystwx13:
Surprised the GFS isn't showing anything substantial in the Caribbean of Gulf of Mexico with these pressure falls by the end of the run.


isn't that just showing -2mb from the mean average?
Member Since: September 30, 2007 Posts: 5 Comments: 13270
413. AussieStorm 2:11 PM GMT on October 05, 2012    
Quoting hydrus:
To far out, but neat to look at.

nice cold front
Member Since: September 30, 2007 Posts: 5 Comments: 13270
414. hydrus 2:15 PM GMT on October 05, 2012    
Quoting AussieStorm:

nice cold front
Nice enough to kill me plants..;O
Member Since: September 27, 2007 Posts: 1 Comments: 14243
415. AussieStorm 2:24 PM GMT on October 05, 2012    
Quoting hydrus:
Nice enough to kill me plants..;O

We had a very nice on come through Sydney today, dropped the temps from 34C to 21C in just over 30mins.
Member Since: September 30, 2007 Posts: 5 Comments: 13270
416. hydrus 2:30 PM GMT on October 05, 2012    
Quoting AussieStorm:

We had a very nice on come through Sydney today, dropped the temps from 34C to 21C in just over 30mins.
There forecasting the first widespread frost for the Ohio and Tennessee Valleys this Sunday evening and Columbus Day. I will try to save some of the plants as this is about three weeks earlier than average. The extended outlook actually shows a cold and wet winter for us, which would be the complete opposite of last years virtual non winter. There have been fall seasons that were almost as cold as the Winter of 2011-12 in our region.
Member Since: September 27, 2007 Posts: 1 Comments: 14243
417. WunderAlertBot (Admin) 2:31 PM GMT on October 05, 2012    
JeffMasters has created a new entry.
418. TropicalAnalystwx13 2:33 PM GMT on October 05, 2012    
Quoting AussieStorm:

isn't that just showing -2mb from the mean average?

Yes, but my point is that pressure are going to be falling within a large region during the middle of October. Classic development set-up if this were to pan out.
Member Since: July 6, 2010 Posts: 89 Comments: 25148
419. bappit 2:34 PM GMT on October 05, 2012    
Did someone say West Nile virus?

Member Since: May 18, 2006 Posts: 3 Comments: 4356

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About JeffMasters
Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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