Dr. Jeff Masters' WunderBlog

Tropical Depression Eight no threat to land
Posted by: Dr. Jeff Masters, 12:24 PM GMT en Septiembre 26, 2009 +2
Tropical Depression Eight formed last night near the coast of Africa, but is not destined to threaten land, and has only about a 50/50 chance of becoming Tropical Storm Grace. While wind shear is a moderate 10 - 20 knots, Sea Surface Temperatures (SSTs) are right at the threshold for tropical storm formation--26°C. There is only a small amount of dry air that is interfering with the storm, but the combination of cool SSTs and moderate wind shear will make TD 8 slow to organize. By Monday, shear is expected to reach a very high 25 - 30 knots, and this should tear the storm apart.

None of the computer models are forecasting tropical storm formation elsewhere in the Atlantic over the next seven days.


Figure 1. Current satellite image of Tropical Depression Eight.

Jeff Masters
Categories: Hurricane
  Permalink | A A A
Reader Comments
Display: 0, 50, 100, 200 Sort: Newest First - Order Posted
Viewing: 351 - 401

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14Blog Index

351. Drakoen 12:19 AM GMT en Septiembre 27, 2009    
The consensus among the climate models is for conditions to be colder than average across the mid-Atlantic states and the southeast. With wetter conditions in these regions as Miller-B type systems form in the south. This type of pattern generally increases the snowfall for the southeast and the mid-Atlantic states.
Member Since: Octubre 28, 2006 Posts: 57 Comments: 29010
352. Tazmanian 12:20 AM GMT en Septiembre 27, 2009    
i have not seen iceman55 on here all day look like he may have got in banned from last night fight on here
Member Since: Mayo 21, 2006 Posts: 5088 Comments: 111341
353. Dakster 12:20 AM GMT en Septiembre 27, 2009    
Weather456 - and here I thought the secrete society of Weather Mets controlled the storms...

You mean there is no Knights Templar for Hurricanes?

Member Since: Marzo 10, 2006 Posts: 0 Comments: 4932
354. mikatnight 12:20 AM GMT en Septiembre 27, 2009    
Hurricane season must be over - they've started showing Christmas commercials again already! (Arghhhhh)
Member Since: Octubre 18, 2005 Posts: 0 Comments: 1966
355. Cavin Rawlins 12:23 AM GMT en Septiembre 27, 2009    
Quoting Dakster:
Weather456 - and here I thought the secrete society of Weather Mets controlled the storms...

You mean there is no Knights Templar for Hurricanes?



lol, sorry no secrete society of Mets that control storms; just those who tell and try to forecast what Mother Nature's gonna do next.
Member Since: Julio 24, 2005 Posts: 407 Comments: 19076
356. Cavin Rawlins 12:24 AM GMT en Septiembre 27, 2009    
Quoting mikatnight:
Hurricane season must be over - they've started showing Christmas commercials again already! (Arghhhhh)


ah! Tis the Season to be brotherly.
Member Since: Julio 24, 2005 Posts: 407 Comments: 19076
357. PcolaDan 12:25 AM GMT en Septiembre 27, 2009    
Quoting mikatnight:
Hurricane season must be over - they've started showing Christmas commercials again already! (Arghhhhh)




I have good timing don't I?
Member Since: Agosto 22, 2008 Posts: 12 Comments: 6008
358. mikatnight 12:26 AM GMT en Septiembre 27, 2009    
Quoting Weather456:


lol, sorry no secrete society of Mets that control storms; just those who tell and try to forecast what Mother Nature's gonna do next.


He said hastily, knowing full well of the man in the shadows behind him…
Member Since: Octubre 18, 2005 Posts: 0 Comments: 1966
359. mikatnight 12:27 AM GMT en Septiembre 27, 2009    
Hi Dan!
Member Since: Octubre 18, 2005 Posts: 0 Comments: 1966
360. Dakster 12:31 AM GMT en Septiembre 27, 2009    
UF's superman is down...
Member Since: Marzo 10, 2006 Posts: 0 Comments: 4932
361. PcolaDan 12:33 AM GMT en Septiembre 27, 2009    
Quoting mikatnight:


He said hastily, knowing full well of the man in the shadows behind him…




Hi!
Member Since: Agosto 22, 2008 Posts: 12 Comments: 6008
362. winter123 12:33 AM GMT en Septiembre 27, 2009    
yawn. season is over. there will be no g storm. NEXT. (season)
Member Since: Julio 29, 2006 Posts: 28 Comments: 1700
363. IKE 12:34 AM GMT en Septiembre 27, 2009    
Quoting Dakster:
UF's superman is down...


Yeah, he got his bell rung and ESPN goes to a commercial as he finally gets up.

Entire team is on the field.

Didn't someone predict a Kentucky upset on here? No.

Just had some rain as the first cold front is moving through this evening.

Those mid 50 lows in a few days will be nice.
Member Since: Junio 9, 2005 Posts: 23 Comments: 37044
364. JLPR 12:35 AM GMT en Septiembre 27, 2009    
Ironic that when the system looses its LLC it develops the biggest strongest convection it has had :P

Member Since: Septiembre 4, 2007 Posts: 36 Comments: 5223
365. winter123 12:36 AM GMT en Septiembre 27, 2009    
but what kind of drugs is nhc on to call this a tropical wave? Yes its heavily sheared but it's bombing

Member Since: Julio 29, 2006 Posts: 28 Comments: 1700
366. BurnedAfterPosting 12:36 AM GMT en Septiembre 27, 2009    
Quoting Dakster:
UF's superman is down...


If he is hurt you can kiss UFs chance at a title goodbye

then again I thought Kentucky would beat them tonight so what do I know

guess I was too bold, thought I staying at a holiday inn express but what happened was someone put a holiday inn sign over a days in logo. Hate when they do that
367. stormpetrol 12:37 AM GMT en Septiembre 27, 2009    
Td8ex firing convection tonight
Member Since: Abril 29, 2007 Posts: 0 Comments: 6396
368. JLPR 12:37 AM GMT en Septiembre 27, 2009    
Quoting Tazmanian:
i have not seen iceman55 on here all day look like he may have got in banned from last night fight on here


yep I checked the blog from last night and all his posts are gone, he was banned
Member Since: Septiembre 4, 2007 Posts: 36 Comments: 5223
369. Drakoen 12:38 AM GMT en Septiembre 27, 2009    
Tonight's Quickscat pass confirms that 08L is a tropical wave.
Member Since: Octubre 28, 2006 Posts: 57 Comments: 29010
370. JLPR 12:39 AM GMT en Septiembre 27, 2009    
No LLC



Lets see if it manages to get a new one
Member Since: Septiembre 4, 2007 Posts: 36 Comments: 5223
371. Cavin Rawlins 12:41 AM GMT en Septiembre 27, 2009    
Quoting JLPR:
No LLC



Lets see if it manages to get a new one


very nice QS
Member Since: Julio 24, 2005 Posts: 407 Comments: 19076
372. PcolaDan 12:41 AM GMT en Septiembre 27, 2009    
Quoting IKE:


Yeah, he got his bell rung and ESPN goes to a commercial as he finally gets up.

Entire team is on the field.

Didn't someone predict a Kentucky upset on here? No.

Just had some rain as the first cold front is moving through this evening.

Those mid 50 lows in a few days will be nice.


You keep saying that, I keep waiting.
Member Since: Agosto 22, 2008 Posts: 12 Comments: 6008
373. wunderkidcayman 12:42 AM GMT en Septiembre 27, 2009    
hi guy how old is this

UW - CIMSS
ADVANCED DVORAK TECHNIQUE
ADT-Version 7.2.3
Tropical Cyclone Intensity Algorithm

----- Current Analysis -----
Date : 27 SEP 2009 Time : 001500 UTC
Lat : 18:52:15 N Lon : 36:15:20 W


CI# /Pressure/ Vmax
2.2 /1007.4mb/ 32.0kt


Final T# Adj T# Raw T#
(3hr avg)
2.2 2.3 2.3

Latitude bias adjustment to MSLP : +0.0mb

Center Temp : +15.7C Cloud Region Temp : -6.0C

Scene Type : SHEAR (0.57^ TO DG)

Positioning Method : LINEAR EXTRAPOLATION

Ocean Basin : ATLANTIC
Dvorak CI > MSLP Conversion Used : ATLANTIC

Tno/CI Rules : Constraint Limits : NO LIMIT
Weakening Flag : OFF
Rapid Dissipation Flag : OFF
Member Since: Junio 13, 2009 Posts: 2 Comments: 5408
374. Dakster 12:42 AM GMT en Septiembre 27, 2009    
Quoting BurnedAfterPosting:


If he is hurt you can kiss UFs chance at a title goodbye

then again I thought Kentucky would beat them tonight so what do I know

guess I was too bold, thought I staying at a holiday inn express but what happened was someone put a holiday inn sign over a days in logo. Hate when they do that


They just played the replay, that was a hard and nasty hit. Hopefully just knocked the wind out of him. (I don't like to see any player get hurt..)
Member Since: Marzo 10, 2006 Posts: 0 Comments: 4932
375. Tazmanian 12:43 AM GMT en Septiembre 27, 2009    
Quoting JLPR:


yep I checked the blog from last night and all his posts are gone, he was banned



oh wow
Member Since: Mayo 21, 2006 Posts: 5088 Comments: 111341
376. Cavin Rawlins 12:44 AM GMT en Septiembre 27, 2009    
Quoting wunderkidcayman:
hi guy how old is this

UW - CIMSS
ADVANCED DVORAK TECHNIQUE
ADT-Version 7.2.3
Tropical Cyclone Intensity Algorithm

----- Current Analysis -----
Date : 27 SEP 2009 Time : 001500 UTC
Lat : 18:52:15 N Lon : 36:15:20 W


CI# /Pressure/ Vmax
2.2 /1007.4mb/ 32.0kt


Final T# Adj T# Raw T#
(3hr avg)
2.2 2.3 2.3

Latitude bias adjustment to MSLP : +0.0mb

Center Temp : +15.7C Cloud Region Temp : -6.0C

Scene Type : SHEAR (0.57^ TO DG)

Positioning Method : LINEAR EXTRAPOLATION

Ocean Basin : ATLANTIC
Dvorak CI > MSLP Conversion Used : ATLANTIC

Tno/CI Rules : Constraint Limits : NO LIMIT
Weakening Flag : OFF
Rapid Dissipation Flag : OFF


seems to be 15 minutes pass 8 PM EDT
Member Since: Julio 24, 2005 Posts: 407 Comments: 19076
377. JLPR 12:45 AM GMT en Septiembre 27, 2009    
Quoting Tazmanian:



oh wow


Well what can we do, he needed a break since he got a little annoying, I hope he comes back with better English and a better attitude :)
Member Since: Septiembre 4, 2007 Posts: 36 Comments: 5223
378. mikatnight 12:46 AM GMT en Septiembre 27, 2009    
Quoting JLPR:


yep I checked the blog from last night and all his posts are gone, he was banned


Anyone know what for? Off topic pic?

My one and only limerick (reprinted despite the lack of popular demand):

There once was a meteorologist
Who never intended for politics
To clog up his blog
Though he said with a shrug
I’ll only ban ‘em for posting off-topic pics!
Member Since: Octubre 18, 2005 Posts: 0 Comments: 1966
380. BurnedAfterPosting 12:47 AM GMT en Septiembre 27, 2009    
Quoting StSimonsIslandGAGuy:
Drakoen and JLPR are correct--no closed circulation, no cyclone, no advisories justified.

Which is too bad. Because I wanted Grace to be named so that the "season is over" people would hush a while :)


We could just tell people who feel the season is over to learn how to read and understand a calendar

Hurricane season is not over until December 1st officially, not on September 26th
381. IKE 12:48 AM GMT en Septiembre 27, 2009    
Quoting PcolaDan:


You keep saying that, I keep waiting.


Pensacola....


Monday Night
Partly cloudy. Lows in the lower 60s. Northwest winds 5 to 10 mph with gusts to around 25 mph.



Tuesday Night
Mostly clear. Lows 56 to 61.
Member Since: Junio 9, 2005 Posts: 23 Comments: 37044
382. Cavin Rawlins 12:48 AM GMT en Septiembre 27, 2009    
Quoting StSimonsIslandGAGuy:
Drakoen and JLPR are correct--no closed circulation, no cyclone, no advisories justified.

Which is too bad. Because I wanted Grace to be named so that the "season is over" people would hush a while :)



lol lol
Member Since: Julio 24, 2005 Posts: 407 Comments: 19076
383. JLPR 12:49 AM GMT en Septiembre 27, 2009    
Quoting BurnedAfterPosting:


We could just tell people who feel the season is over to learn how to read and understand a calendar

Hurricane season is not over until December 1st officially, not on September 26th


sadly we already tried that one but it didn't work :|
Member Since: Septiembre 4, 2007 Posts: 36 Comments: 5223
384. HIEXPRESS 12:50 AM GMT en Septiembre 27, 2009    
Quoting BurnedAfterPosting:


If he is hurt you can kiss UFs chance at a title goodbye

then again I thought Kentucky would beat them tonight so what do I know

guess I was too bold, thought I staying at a holiday inn express but what happened was someone put a holiday inn sign over a days in logo. Hate when they do that


It doesn't work for just anybody.

I'll bet Doc M would have liked to have posted a <50kb *fish cartoon* on former TD8L, but of course he would have been banned. OK to post Santa Claus or a long religious or political discourse though.
Member Since: Octubre 13, 2005 Posts: 4 Comments: 2153
385. farhaonhebrew 12:52 AM GMT en Septiembre 27, 2009    
Quoting JLPR:
Ironic that when the system looses its LLC it develops the biggest strongest convection it has had :P



the same with pre Erika....
Member Since: Julio 14, 2008 Posts: 0 Comments: 235
386. Cavin Rawlins 12:52 AM GMT en Septiembre 27, 2009    
Quoting JLPR:


sadly we already tried that one but it didn't work :|


yea, we've basically exhausted all explanations. I think it spiral downward just after 93L back in late June.


Also they have a strong argument, El Nino seasons rarely pass mid-October.

That's why if we get neutral next year, should be interesting.
Member Since: Julio 24, 2005 Posts: 407 Comments: 19076
387. JLPR 12:53 AM GMT en Septiembre 27, 2009    
Quoting farhaonhebrew:


the same with pre Erika....


lol but Erika looked much better xD
Member Since: Septiembre 4, 2007 Posts: 36 Comments: 5223
388. stormpetrol 12:54 AM GMT en Septiembre 27, 2009    
I think ExTD8 will pull together long enough to get a name,jmo
Member Since: Abril 29, 2007 Posts: 0 Comments: 6396
389. Cavin Rawlins 12:54 AM GMT en Septiembre 27, 2009    
It would interesting to see which, if any of 90L, 92L or the NJ low will be re-classified in post analysis.
Member Since: Julio 24, 2005 Posts: 407 Comments: 19076
390. JLPR 12:55 AM GMT en Septiembre 27, 2009    
Quoting Weather456:
It would interesting to see which, if any of 90L, 92L or the NJ low will be re-classified in post analysis.


now that could easily initiate a debate here xD
Member Since: Septiembre 4, 2007 Posts: 36 Comments: 5223
391. mikatnight 12:55 AM GMT en Septiembre 27, 2009    
Fanged Frog Found in Bangkok

Friday, September 25, 2009


From a site on Fox (http://www.foxnews.com/story/0,2933,555501,00.html)



BANGKOK (AP) — A gecko with leopard-like spots on its body and a fanged frog that eats birds are among 163 new species discovered last year in the Mekong River region of Southeast Asia, an environmental group said Friday.

WWF International said that scientists in 2008 discovered 100 plants, 28 fish, 18 reptiles, 14 amphibians, two mammals and one bird species in the region. That works out to be about three species a week and is in addition to the 1,000 new species catalogued there from 1997 to 2007, the group said.

"After millennia in hiding these species are now finally in the spotlight, and there are clearly more waiting to be discovered," said Stuart Chapman, director of the WWF Greater Mekong Program.

Researchers working for WWF warned that the effects of climate change, including an upsurge in droughts and floods, threaten the diverse habitat that supports these species. That is on top of traditional threats such as poaching, pollution and habitat destruction.

"Some species will be able to adapt to climate change, many will not, potentially resulting in massive extinctions," Chapman said in a statement. "Rare, endangered and endemic species like those newly discovered are especially vulnerable because climate change will further shrink their already restricted habitats."

(more)
Member Since: Octubre 18, 2005 Posts: 0 Comments: 1966
392. Cavin Rawlins 12:57 AM GMT en Septiembre 27, 2009    
Quoting JLPR:


now that could easily initiate a debate here xD


90L and 92L are good candidates, but 92L really deserved to be named.
Member Since: Julio 24, 2005 Posts: 407 Comments: 19076
393. PcolaDan 12:58 AM GMT en Septiembre 27, 2009    
Quoting IKE:


Pensacola....


Monday Night
Partly cloudy. Lows in the lower 60s. Northwest winds 5 to 10 mph with gusts to around 25 mph.



Tuesday Night
Mostly clear. Lows 56 to 61.


I know, won't even need
Member Since: Agosto 22, 2008 Posts: 12 Comments: 6008
394. wunderkidcayman 12:59 AM GMT en Septiembre 27, 2009    
Quoting Weather456:


seems to be 15 minutes pass 8 PM EDT

so pretty new and looking at history it is some what getting stronger (from
AODT LIST 08L.ODT
===== ADT-Version 7.2.3 =====)

date and time: winds(kt): Final MSLP:
2009SEP26 204500 27.0 1010.8
2009SEP26 211500 27.0 1010.8
2009SEP26 214500 28.0 1010.2
2009SEP26 221500 29.0 1009.6
2009SEP26 224500 30.0 1009.0
2009SEP26 231500 31.0 1008.2
2009SEP26 234500 31.0 1008.2
2009SEP27 001500 32.0 1007.4
Member Since: Junio 13, 2009 Posts: 2 Comments: 5408
395. FLGatorCaneNut 12:59 AM GMT en Septiembre 27, 2009    
Quoting Dakster:
UF's superman is down...


Not for long !!!!!
Member Since: Julio 26, 2009 Posts: 0 Comments: 164
396. largeeyes 1:00 AM GMT en Septiembre 27, 2009    
Link

Low off NC coast is soaking Morehead City. Not too much here in New Bern.

On the football note, I could do with less coverage of Tebow blowing chunks.
Member Since: Agosto 22, 2006 Posts: 0 Comments: 1381
397. mikatnight 1:04 AM GMT en Septiembre 27, 2009    
Quoting largeeyes:
Link

Low off NC coast is soaking Morehead City. Not too much here in New Bern.

On the football note, I could do with less coverage of Tebow blowing chunks.


eeewwwww!
Member Since: Octubre 18, 2005 Posts: 0 Comments: 1966
398. JLPR 1:08 AM GMT en Septiembre 27, 2009    
Quoting Weather456:


90L and 92L are good candidates, but 92L really deserved to be named.


I got a question...
why wasn't 92L named? XD
it was clearly a Sub-tropical storm
NHC is getting too conservative :P
Member Since: Septiembre 4, 2007 Posts: 36 Comments: 5223
399. somemalayguy117 1:09 AM GMT en Septiembre 27, 2009    
Invest 98W or TD #26 (JMA) so to the east that it can be seen through GOES-11. And it is very small.
400. Seastep 1:11 AM GMT en Septiembre 27, 2009    
Nice looking tropical wave.

Member Since: Septiembre 9, 2008 Posts: 6 Comments: 3406
401. Cavin Rawlins 1:17 AM GMT en Septiembre 27, 2009    
Quoting JLPR:


I got a question...
why wasn't 92L named? XD
it was clearly a Sub-tropical storm
NHC is getting too conservative :P


It was likely the SSTs, since that is the only thing they mentioned in their TWO from June 1 to June 2. They even admit 92L was better organize.

Later, Gary Padgett stated that the warm-core found in 92L was not from the release of latent heat, it was stratospheric based. I disagreed with this statement since 92L had sufficient convection to release latent heat. The fact the core of strongest winds got closer to the center could only mean this warm-core was affecting the surface.
Member Since: Julio 24, 2005 Posts: 407 Comments: 19076

Viewing: 351 - 401

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14Blog Index

New Comment
Community Standards Policy Comments will take a few seconds to appear.
Post Your Comments
Please sign in to post comments.
Not only will you be able to leave comments on this blog, but you'll also have the ability to upload and share your photos in our Wunder Photos section.
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.

Local Weather
Scattered Clouds
81 ° F
Nubes dispersas
Community Activity