Dr. Jeff Masters' WunderBlog

Adieu to Danny
Posted by: Dr. Jeff Masters, 09:50 GMT le 29 août 2009 +0
Hi, Dr. Rob Carver filling in for Dr. Masters. With the 5AM EST update, NHC has discontinued issuing the tropical storm watches and will no longer issue any updates about the storm. Danny has gone extratropical and has merged with a frontal low off the Carolina coast. The most recent aircraft reconnaissance flight was unable to find a cyclonic circulation or tropical storm force winds in the remnants of Danny.

That isn't to say that Danny's remnants don't pose an element of risk for the East Coast. High surf from large swells is expected along the East Coast. New England can expect to see a lot of rain as Denny's remnants fly by.

Invest 94L

Invest 94L is still out near South America, but it's convective activity seems to be cycling down right now. The global models (GFS and GEM) do pull 94L (to be precise, a feature that could be 94L) north of the Lesser Antilles. Given how the GFDL has performed with other Invests this season, I can wait a day or so before they run the GFDL for this storm.

East Pacific and elsewhere

For those of you wanting to look at tropical storms, Jimena has just formed in the Eastern Pacific basin. The track uncertainty is fairly large, so I'll be keeping an eye on this storm to see if it will impact Mexico or the American Southwest. In the Western Pacific, Tropical Storm Krovahn looks like it will be grazing the Japanese coastline just east of Tokyo Bay.

I'll give Invest94L a chance to see the Sun and then I'll update this entry.

Update:1545 EDT

G'afternoon everybody, Invest94L has perked up a little since this's morning blog entry. In my judgment, the extent and peak magnitude of convection has increased, and scatterometer data shows that Invest94L has a weak cyclonic circulation. Here's the 9Z ascending pass:

Quickscat Pass over Invest94L
Figure 1Ascending Quikscat pass centered over Invest94L at 9Z Aug 29 2009.

There will be a big update tonight after the 00Z model cycle data comes in.
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201. Orcasystems 14:32 GMT le 29 août 2009    
Member Since: 1 octobre 2007 Posts: 77 Comments: 26108
202. HaboobsRsweet 14:33 GMT le 29 août 2009    
Quoting mobilegirl81:

The weaker it is, the less influence there is for anything to pull it up. Remember bill was heading northwest because it was at least a depression .

So you are telling me that because it is weaker it will magically jump over top of a front and not be affected by a NWrly wind component to shear it apart?
Member Since: 20 mai 2009 Posts: 0 Comments: 1640
203. HurricaneTracker01 14:35 GMT le 29 août 2009    
Watch Jimena come to life very quickly

http://www.weather.com/maps/geography/northamerica/mexicosatellite_large_animated.html
Member Since: 1 août 2006 Posts: 6 Comments: 125
204. Grothar 14:36 GMT le 29 août 2009    
Quoting jasoniscoolman10:
wow....lots of red here


Wouldn't you like to be an umbrella salesman right now in New England. Looks like a good rain maker. Nice image. Wet, but nice.
Member Since: 17 juillet 2009 Posts: 58 Comments: 19654
205. SWFLDigTek 14:36 GMT le 29 août 2009    
Final Update on DANNY:
South Florida StormWatch
Member Since: 31 août 2008 Posts: 117 Comments: 398
206. mobilegirl81 14:36 GMT le 29 août 2009    
Quoting HaboobsRsweet:

So you are telling me that because it is weaker it will magically jump over top of a front and not be affected by a NWrly wind component to shear it apart?

Its too low.
Member Since: 31 août 2008 Posts: 0 Comments: 833
208. atmoaggie 14:37 GMT le 29 août 2009    
I don't know, StormW. BAMS is seeing some reason to pull north a bit. What is it seeing?



Last night, it was clear that BAMS had the south-most track, by far, and BAMM and BAMD pulled more north...like usual.
Member Since: 16 août 2007 Posts: 6 Comments: 12461
209. AllStar17 14:37 GMT le 29 août 2009    
Quoting HaboobsRsweet:

So you are telling me that because it is weaker it will magically jump over top of a front and not be affected by a NWrly wind component to shear it apart?


It is too far south.
Member Since: 29 juin 2009 Posts: 13 Comments: 5145
210. HaboobsRsweet 14:37 GMT le 29 août 2009    
Quoting mobilegirl81:

Its too low.

For now yes but they are both moving towards each other. I dunno I dont see it. This to me is no doubt an east coast storm if it makes it.
Member Since: 20 mai 2009 Posts: 0 Comments: 1640
211. taco2me61 14:38 GMT le 29 août 2009    
Well I'm off for the day....

I am in Henry Co, Mc Donough Ga to spend time with the Kids..... You all have a great day....

Taco :0)
Member Since: 7 juillet 2005 Posts: 6 Comments: 2788
212. naderchaser 14:39 GMT le 29 août 2009    
Mornin' all! So what's the concensus on ole 94-L this morning? North fish storm, southern island rocker or right down the middle into the GOM? Looking pretty weak right now and pretty far south for the trough of LP to have any effect so my best guess would be south. Any other opinions?
213. TerraNova 14:39 GMT le 29 août 2009    
Morning everyone.

I've posted an update on my blog, together with an interesting article about the Sun's influence on ENSO.

8/29 - Danny Now Extratropical; 94L Struggling; and the Sun's Role in our Climate
Member Since: 30 juillet 2007 Posts: 76 Comments: 4058
214. stormsurge39 14:39 GMT le 29 août 2009    
Storm W Goodmorning, I agree with your post about the westward movement of 94L. If theres anything ive learned about watching developing systems, is that when they are in the pre-Td phase, they are NOT influenced by a trough that far south and that weak. Why do you think these models insist on pulling it N right now?
215. HaboobsRsweet 14:40 GMT le 29 août 2009    
Dont foreget the front will start to stall out as it gets close to the coastline.
Member Since: 20 mai 2009 Posts: 0 Comments: 1640
217. AllStar17 14:40 GMT le 29 août 2009    
Quoting HaboobsRsweet:

For now yes but they are both moving towards each other. I dunno I dont see it. This to me is no doubt an east coast storm if it makes it.



No doubt....huh?
Member Since: 29 juin 2009 Posts: 13 Comments: 5145
218. hurricane23 14:40 GMT le 29 août 2009    
Just took a quick at globals before heading out and theres nothing out there of any signficance to mention. All i can say is that the eastcoast trof is not going anywere anytime soon.

adrian
Member Since: 14 mai 2006 Posts: 8 Comments: 13327
219. mobilegirl81 14:40 GMT le 29 août 2009    
Quoting HaboobsRsweet:

For now yes but they are both moving towards each other. I dunno I dont see it. This to me is no doubt an east coast storm if it makes it.

Lets just hope its not a monster. The folks in th carribean need some rain bad.
Member Since: 31 août 2008 Posts: 0 Comments: 833
220. TheDawnAwakening 14:41 GMT le 29 août 2009    
Jimena is amazing. It was just an invest yesterday, right? Hot towers in her eyewall. Amazing!
Member Since: 21 octobre 2008 Posts: 215 Comments: 3159
221. Orcasystems 14:41 GMT le 29 août 2009    




Same pictures.. second with wind shear added.
Member Since: 1 octobre 2007 Posts: 77 Comments: 26108
222. HaboobsRsweet 14:41 GMT le 29 août 2009    
the other reasons why it may turn norht is because the models are breaking down the ridge big time.
Member Since: 20 mai 2009 Posts: 0 Comments: 1640
223. mobilegirl81 14:41 GMT le 29 août 2009    
Quoting AllStar17:



No doubt....huh?

Crow anyone?
Member Since: 31 août 2008 Posts: 0 Comments: 833
224. atmoaggie 14:43 GMT le 29 août 2009    
And the most recent guidance from the fully-dynamical models also shows 94 to miss the lesser islands (teasing you guys).

Member Since: 16 août 2007 Posts: 6 Comments: 12461
225. HaboobsRsweet 14:43 GMT le 29 août 2009    
Quoting AllStar17:



No doubt....huh?

No doubt at all. A good forecaster never dodges a forecast and a chance to give their opinion on what the pattern is going to do. I wont be eating crow on this one. I am pretty confident in my forecast for this one.
Member Since: 20 mai 2009 Posts: 0 Comments: 1640
226. HaboobsRsweet 14:44 GMT le 29 août 2009    
I am not saying the islands wont feels some effects. I am saying it will never reach the Gulf and wont even brush FL.
Member Since: 20 mai 2009 Posts: 0 Comments: 1640
227. naderchaser 14:46 GMT le 29 août 2009    
mobilegirl, where'd yall catch all those speck's?
Dog River, Dauphin Island, Fowl River, Mobile Bay?
228. msphar 14:44 GMT le 29 août 2009    
I think Trinidad will get some rain in a couple of days.
Member Since: 20 août 2006 Posts: 0 Comments: 258
229. atmoaggie 14:44 GMT le 29 août 2009    
Quoting HaboobsRsweet:
the other reasons why it may turn norht is because the models are breaking down the ridge big time.

Yeah, seeing that now.

Guys, these systems in the absence of a high naturally go poleward. If the ridge relaxes a bit, the steering will change.
Member Since: 16 août 2007 Posts: 6 Comments: 12461
230. Hhunter 14:44 GMT le 29 août 2009    
tpc probably gave up a little to fast on danny..kinda lining up some now with a burst..bet it will be worse than thought
Member Since: 19 août 2007 Posts: 0 Comments: 2886
232. amd 14:45 GMT le 29 août 2009    
to be blunt, tropical storm (soon to be Hurricane) Jimena is much more interesting than anything system in the atlantic.

Danny has become an ordinary east coast non-tropical system, and 94L does not have much chance to develop. If it moves to the north, the westerly shear which is increasing due to a ULL moving SW from a location of 30 N 46 W, will kill it. If 94L continues to move west, the very dry conditions in the Caribbean and waters east of the lesser Antilles, will kill it.

Link

Link
El Nino is becoming more dominant in the Atlantic basin.
Member Since: 29 août 2005 Posts: 0 Comments: 1024
233. HaboobsRsweet 14:47 GMT le 29 août 2009    
Quoting stormno:
haboobs have the crow standing by my friend you are goingto eat it 94 l will do nothing i repeat nothing..Stormno

What are you talking about? I said IF it forms it is an east coast storm or fish storm. I said it has zero chance to head to the Gulf. I never mentioned anything about it getting a name or not.
Member Since: 20 mai 2009 Posts: 0 Comments: 1640
234. reedzone 14:48 GMT le 29 août 2009    
Quoting stormno:
well folks it is written in stone i forecasted 6 named storms we are at four but the conditions now are just to hostile for anything to develop in the gom or caribbean...it looks to me like hurricane season is over and we have to wait until next year...i forecast danny would weaken and i also forecat a gradual weakening of 94l...so i hit both on the nose and i also told reedzone danny was going to be a rainmaker for the east coast..guys i been 100% correct all year im not saying im perfect although im pretty dam close to it..stormno hasnt been folowing these things for his health i know about storm development and the way i see it now HURRICANE SEASON IS OVER FOR THIS YEAR...ITS POSSIBLE MAYBE 2 MORE STORMS BUT I REALLY DOUBT IT...GUYS IT WILL GIVE YOU TIME TO STUDY MORE AND LEARN FROM PEOPLE WHO KNOW LIKE PARATROP AND DRAKE..STORM W IS JUST NOT MY CUP OF TEA..I CANT FORGIVE HIM ABOUT THAT ASSININE STATEMENT HE MADE ABOUT BILL BUSTING THROUGH THE TROUGH AT 750MB...WHAT A CRAZY STATEMENT EVEN JEFF MASTERS HAD TO STRAIGTHEN HIM OUT..Stormno


My forecasts has been much more accurate then yours. I predicted Bill to recurve close to New England and look what happened. I was wrong with Dannys possible strength, but my track on Danny was good as well. I know I shouldn't be quoting trolls like you but I had had enough of everybody calling me a wishcaster when I was correct so far this year! There won't be 4-6 storms, there will be at least 8-10 storms. Your wrong!

One more thing to add to back up StormW.. He did not predict Bill to "bust the trough". He said it was a very slim chance and if Bill wa sa day late, East Coast would have had Hurricane Bill knocking at there door! StormW is an excellent, one of the best forecasters on this blog. I have great respect for that man.
Member Since: 1 juillet 2008 Posts: 13 Comments: 7249
235. atmoaggie 14:48 GMT le 29 août 2009    
Well, since you say it that way, I'll go ahead and forecast that 94 has a lifelong dry air problem and doesn't develop into much of anything. No more a TC than Danny and may not even be named.
Member Since: 16 août 2007 Posts: 6 Comments: 12461
236. mobilegirl81 14:48 GMT le 29 août 2009    
Quoting naderchaser:
mobilegirl, where'd yall catch all those speck's?
Dog River, Dauphin Island, Fowl River, Mobile Bay?

Isle au Pitre, which is about 15 miles south of Pass Christian, MS in the Louisiana marsh.
Member Since: 31 août 2008 Posts: 0 Comments: 833
237. stormsurge39 14:49 GMT le 29 août 2009    
Quoting stormno:
well folks it is written in stone i forecasted 6 named storms we are at four but the conditions now are just to hostile for anything to develop in the gom or caribbean...it looks to me like hurricane season is over and we have to wait until next year...i forecast danny would weaken and i also forecat a gradual weakening of 94l...so i hit both on the nose and i also told reedzone danny was going to be a rainmaker for the east coast..guys i been 100% correct all year im not saying im perfect although im pretty dam close to it..stormno hasnt been folowing these things for his health i know about storm development and the way i see it now HURRICANE SEASON IS OVER FOR THIS YEAR...ITS POSSIBLE MAYBE 2 MORE STORMS BUT I REALLY DOUBT IT...GUYS IT WILL GIVE YOU TIME TO STUDY MORE AND LEARN FROM PEOPLE WHO KNOW LIKE PARATROP AND DRAKE..STORM W IS JUST NOT MY CUP OF TEA..I CANT FORGIVE HIM ABOUT THAT ASSININE STATEMENT HE MADE ABOUT BILL BUSTING THROUGH THE TROUGH AT 750MB...WHAT A CRAZY STATEMENT EVEN JEFF MASTERS HAD TO STRAIGTHEN HIM OUT..Stormno
Stormno for you to suggest that hurricane season is over on Aug 29th. is really irresponsible. If you are really that experienced, people like me rely on experience to help us thru hurricane season.
238. extreme236 14:49 GMT le 29 août 2009    
Wow! From the new Jimena advisory

THE INITIAL INTENSITY IS RAISED TO 70 KT FOR THIS
ADVISORY. THE LARGE-SCALE ENVIRONMENT APPEARS EXTREMELY FAVORABLE
FOR CONTINUED RAPID STRENGTHENING...WITH VERY WARM SSTS OVER
30C...VERY HIGH MID-LEVEL HUMIDITY AND LOW SHEAR. THE SHIPS RAPID
INTENSIFICATION INDEX IS FORECASTING A 95 PERCENT CHANCE OF A 35 KT
INCREASE DURING THE NEXT 24 HOURS...THE HIGHEST VALUE I HAVE EVER
SEEN.
Member Since: 2 août 2007 Posts: 19 Comments: 19234
240. atmoaggie 14:50 GMT le 29 août 2009    
Aw, dang. Mr. Doom and I agree on something? I might change my opinion.
Member Since: 16 août 2007 Posts: 6 Comments: 12461
244. kachina 14:51 GMT le 29 août 2009    
Good morning everyone!

I'm glad to see that Danny has become a rain event for the East Coast.

I'm hoping 94L follows suit.

Thanks Orca for the charts this morning!
248. mobilegirl81 14:53 GMT le 29 août 2009    
Quoting StormW:


I don't know what they are seeing right now. But what I'm seeing, is right now it's close to a weakness in the steering, and it's still moving west. Looking at the forecast, the weakness from the front is gonna be off the FL coast...if it's not feeling the WNW flow near the Antilles, how is i going to feel the weakness near FL being in the shape it's in.

Maybe I'm missing something here?

PSU e-WALL STEERING

There you go HaboobsRsweet!
Member Since: 31 août 2008 Posts: 0 Comments: 833
249. AllStar17 14:53 GMT le 29 août 2009    
Quoting amd:
to be blunt, tropical storm (soon to be Hurricane) Jimena is much more interesting than anything system in the atlantic.

Danny has become an ordinary east coast non-tropical system, and 94L does not have much chance to develop.

If it moves to the north, the westerly shear which is increasing due to a ULL moving SW from a location of 30 N 46 W, will kill it.

If 94L continues to move west, the very dry conditions in the Caribbean and waters east of the lesser Antilles, will kill it.

El Nino is becoming more dominant in the Atlantic basin.


Wow! You just completely said bye-bye to 94L......and prematurely I might add.
Member Since: 29 juin 2009 Posts: 13 Comments: 5145
251. reedzone 14:54 GMT le 29 août 2009    
Quoting stormno:
lol reedzone i give you credit for bill you were right on i already said that but danny you blew it pal...i got bill right i said he would brush bermuda and not hit any other land until he got to cananda ...pull my ppost its all there reedzone...Stormno


Pull my post on the track of Danny, it's there yesterday I had predicted Danny to become Extratropical. You need to back your statement with facts and not foolish words.
Member Since: 1 juillet 2008 Posts: 13 Comments: 7249

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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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