Dr. Jeff Masters' WunderBlog

Invest 94L and the Lesser Antilles
Posted by: Dr. Jeff Masters, 9:51 AM GMT en Agosto 30, 2009 +1
Hi, this is Dr. Rob Carver filling in for Dr. Masters. The convection associated with Invest 94L has intensified, prompting the NHC to issue an early Tropical Weather Outlook to update the situation. Essentially, people in the Lesser Antilles need to start paying attention to the seas and skies. Looking at the computer track models, the set of model solutions are fairly similar to the Saturday model runs. A set of dynamical models (GFDL, HWRF, NOGAPS) runs to the NE of the Antilles, while the simpler models (LBAR, BAM family) are more easterly and take 94L over the Antilles. I do not ascribe any significance to the 00Z GFS track following the simpler models over the dynamical models. From my examination of the 00Z GFS run, it looks like the simulated 94L weakens too much, so the automatic vortex tracker picks up another vorticity feature. As for the future of 94L, there is a large area of large wind shear to it's north. It will need to keep it's track at WNW-W for intensification.

Update at 6AM EDT
I would be remiss if I didn't mention the major hurricane in the Eastern Pacific, Jimena At this time, Jimena has a satellite-estimated maximum wind speed of 115 mph, making it a Category 3 storm on the Saffir-Simpson scale. Jimena has an impressive presentation in satellite imagery with a large area of cold anvil cirrus in the center of the storm. The following microwave imagery indicate the formation of a relatively potent central eyewall, which is responsible for intensification.


Fig. 1 SSMI 85 GHz PCT at 0244Z Aug 30. Image courtesy of NRL.


People along the western coast of Mexico and along along the Baja need to pay close attention to this dangerous storm. I emphasize that using the current track and intensity forecast, Jimena will be a Category 4 storm when it approaches the tip of Baja and a Category 3 storm when it makes landfall up the coast.

It is worth noting that if Jimena follows the more easterly tracks presented in the computer track forecasts, the remnants of Jimena could impact NM and western Texas.


I'll update this entry further in response to 94L's development.


Categories: Hurricane
  Permalink | A A A
Reader Comments
Display: 0, 50, 100, 200 Sort: Newest First - Order Posted
Viewing: 3001 - 3051

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66Blog Index

3001. truecajun 3:54 AM GMT en Agosto 31, 2009    
Quoting CycloneOz:
Alright folks...I'm off on another intercept. The Hurricane Van is loaded with my luggage and I'm headed out to the airport.

Luckily, I was able to upload two new videos to YouTube before I left town. Today was alot of hard work...and come tomorrow through next week, more of the same!

I'll update as often as I can. So will StormJunkie and PensacolaDoug. See you folks on the other side!

CycloneOz---Out...


have fun! stay safe!
Member Since: Agosto 24, 2006 Posts: 0 Comments: 1848
3002. truecajun 3:54 AM GMT en Agosto 31, 2009    
Quoting WunderFul:
BTW, in my neck of the woods, it just dropped into the 40s, and it isn't even midnight, still in August. What a wacky summer we've had up here. (If you're curious as to why a Midwesterner like me is so interested in the tropics, my little sis lives in Savannah, so I watch out for her a bit.)



awwww. that's sweet!
Member Since: Agosto 24, 2006 Posts: 0 Comments: 1848
3005. katzanddogz 3:54 AM GMT en Agosto 31, 2009    
Quoting WeatherRhino:


Are you kidding me? StormW got banned??? I come here and look for his post. Emotionally unstable? I think not!


What happen to StormW. I was visiting my kids and miss this.
Member Since: Febrero 10, 2009 Posts: 0 Comments: 44
3006. truecajun 3:56 AM GMT en Agosto 31, 2009    
Quoting katzanddogz:


What happen to StormW. I was visiting my kids and miss this.


he posted a pic of the geico lizard. i guess they considered that advertisement??? not really sure why they banned him for that, but that is what got him banned.
Member Since: Agosto 24, 2006 Posts: 0 Comments: 1848
3007. Tazmanian 3:56 AM GMT en Agosto 31, 2009    
Quoting KoritheMan:


http://en.wikipedia.org/wiki/Sexual_tension




what are you doing
Member Since: Mayo 21, 2006 Posts: 5088 Comments: 111355
3009. FloridaTigers 3:56 AM GMT en Agosto 31, 2009    
WS, this thing between you and Drak is getting creepy and almost stalker-ish. Why do you need people telling you about him over Facebook?
Member Since: Mayo 17, 2009 Posts: 0 Comments: 559
3010. JohnnyMandeville 3:57 AM GMT en Agosto 31, 2009    
So out of curiosity, would I get banned for a picture of a cavemen?
Member Since: Septiembre 23, 2007 Posts: 1 Comments: 14
3011. JohnnyMandeville 3:58 AM GMT en Agosto 31, 2009    
Are there any thoughts on whether 94L could pose any threat to the gulf coast, or is it set up to follow Bill and Danny?
Member Since: Septiembre 23, 2007 Posts: 1 Comments: 14
3012. katzanddogz 3:59 AM GMT en Agosto 31, 2009    
Quoting truecajun:


he posted a pic of the geico lizard. i guess they considered that advertisement??? not really sure why they banned him for that, but that is what got him banned.


You are kidding me!!! Crazy! I read alot of things on this blog that people should get banned for and don't. That's just plain wrong!
Member Since: Febrero 10, 2009 Posts: 0 Comments: 44
3013. GeoffreyWPB 3:59 AM GMT en Agosto 31, 2009    
Storm will be back tomorrow. I think we will need his analysis more tomorrow than this evening.
Member Since: Septiembre 10, 2007 Posts: 0 Comments: 9127
3014. KoritheMan 4:00 AM GMT en Agosto 31, 2009    
Quoting JohnnyMandeville:
Are there any thoughts on whether 94L could pose any threat to the gulf coast, or is it set up to follow Bill and Danny?


Models suggest that the subtropical ridge to the north will build back to the west after five days, so the Gulf Coast should keep an eye, but this is nothing imminent, and panic should not be an option.
Member Since: Marzo 7, 2007 Posts: 410 Comments: 15462
3018. 7544 4:01 AM GMT en Agosto 31, 2009    
*-is that a eye at 12 / 48 Link

check it ouut
Member Since: Mayo 6, 2007 Posts: 0 Comments: 5925
3019. rareaire 4:02 AM GMT en Agosto 31, 2009    
evening all!
Member Since: Agosto 19, 2007 Posts: 0 Comments: 1598
3020. truecajun 4:02 AM GMT en Agosto 31, 2009    
Quoting JohnnyMandeville:
Are there any thoughts on whether 94L could pose any threat to the gulf coast, or is it set up to follow Bill and Danny?


I asked storm earlier today if he thought it would enter the GOM. He said no due to the current steering systems. I'm not wording it exactly like he did, but that is basically what he said.
Member Since: Agosto 24, 2006 Posts: 0 Comments: 1848
3021. stormpetrol 4:02 AM GMT en Agosto 31, 2009    
94Lconvection has waned some, but organization & structure wise it has improved quite a bit over the past few hours.
Member Since: Abril 29, 2007 Posts: 0 Comments: 6400
3022. KoritheMan 4:02 AM GMT en Agosto 31, 2009    
Quoting DestinJeff:
Time for a poll ...

When will the last "StormW Ban" post occur?

a. 6-12 hours
b. 48-72 hours
c. When steering maps update
d. Nov 31

By the way .. convection consolidating


November only has 30 days.
Member Since: Marzo 7, 2007 Posts: 410 Comments: 15462
3023. mikatnight 4:03 AM GMT en Agosto 31, 2009    
Quoting DestinJeff:
Time for a poll ...

When will the last "StormW Ban" post occur?

a. 6-12 hours
b. 48-72 hours
c. When steering maps update
d. Nov 31

By the way .. convection consolidating


Did he really get banned, or did he just pretend to get banned in a conspiracy with Admin to show how serious they are about off-topic pics?
Member Since: Octubre 18, 2005 Posts: 0 Comments: 1973
3025. JohnnyMandeville 4:03 AM GMT en Agosto 31, 2009    
Thanks for the response
Member Since: Septiembre 23, 2007 Posts: 1 Comments: 14
3028. TexasGulf 4:04 AM GMT en Agosto 31, 2009    
...but this is nothing imminent, and panic should not be an option

Don't be silly. Panic is ALWAYS an option.
Member Since: Abril 28, 2008 Posts: 0 Comments: 354
3029. LightningCharmer 4:04 AM GMT en Agosto 31, 2009    
Quoting JohnnyMandeville:
So out of curiosity, would I get banned for a picture of a cavemen?
As long it was about caveman weather forecasting, it should be okay.
Member Since: Septiembre 1, 2007 Posts: 0 Comments: 1111
3030. truecajun 4:05 AM GMT en Agosto 31, 2009    
I agree

Member Since: Agosto 24, 2006 Posts: 0 Comments: 1848
3031. flsky 4:06 AM GMT en Agosto 31, 2009    
Quoting WunderFul:
BTW, in my neck of the woods, it just dropped into the 40s, and it isn't even midnight, still in August. What a wacky summer we've had up here. (If you're curious as to why a Midwesterner like me is so interested in the tropics, my little sis lives in Savannah, so I watch out for her a bit.)

Where are you located? It rarely gets below the low 70's at night during the summer where I live. Cool temps sound kind of nice!
Member Since: Octubre 24, 2006 Posts: 0 Comments: 1276
3032. hurricane23 4:06 AM GMT en Agosto 31, 2009    
Quoting CycloneOz:
Alright folks...I'm off on another intercept. The Hurricane Van is loaded with my luggage and I'm headed out to the airport.

Luckily, I was able to upload two new videos to YouTube before I left town. Today was alot of hard work...and come tomorrow through next week, more of the same!

I'll update as often as I can. So will StormJunkie and PensacolaDoug. See you folks on the other side!

CycloneOz---Out...


You might have to be right on spot with your location as this thing has a very tiny core of hurricane forces winds.Last time i looked at the NHC advisory they only extend out about 20-25 miles or so.Satellite appearence is a bid on the ragged side right now but upper conditions are very favorable hopefully it wont choke up on a eyewall replacement cycle which may hold back intensity but it good very well try to make a run at cat 5 intensity.

Watch out for the flood potential. adrian
Member Since: Mayo 14, 2006 Posts: 8 Comments: 13276
3033. crashingwaves 4:06 AM GMT en Agosto 31, 2009    
Quoting katzanddogz:


You are kidding me!!! Crazy! I read alot of things on this blog that people should get banned for and don't. That's just plain wrong!


I totaly agree here.
Member Since: Julio 8, 2008 Posts: 0 Comments: 158
3035. serialteg 4:07 AM GMT en Agosto 31, 2009    
Quoting truecajun:


not really sure why they banned him for that


When using Dr. Masters' blog, please refrain from posting material not relevant to the discussion of tropical weather, or the topic of the blog entry itself. Please do not engage in personal attacks or bickering. Material not conforming to these standards should be flagged with the button and ignored.

I got banned possibly for a pic of a cloud shaped like an elephant. In Dr. Masters' blog he discussed a cloud shaped like a wave on Bill's eyewall. Danny kind of looked like an elephant to some people, and it took off from there.

So I can see how posting a Geico lizard pic can get you banned.

Actually, if the the personal attacks / bickering rule were enforced as strictly as the pics...

I was told that talking about a ban can get you re-banned, so if you don't see me for another 24hrs, you know what happened.
Member Since: Agosto 22, 2006 Posts: 2 Comments: 1966
3036. Bordonaro 4:10 AM GMT en Agosto 31, 2009    
Quoting 7544:
*-is that a eye at 12 / 48 Link

check it ouut

That appears to be the COC (Center of Circulation) that is not the eye. Looks like 94L is starting to slowly come together!!
Member Since: Agosto 25, 2009 Posts: 20 Comments: 6785
3037. stormpetrol 4:12 AM GMT en Agosto 31, 2009    
94L has slowed in forward speed quite abit over the last few hours it would appear to me anyways.
Member Since: Abril 29, 2007 Posts: 0 Comments: 6400
3038. lahurrbuff 4:12 AM GMT en Agosto 31, 2009    
Quoting Bordonaro:

That appears to be the COC (Center of Circulation) that is not the eye. Looks like 94L is starting to slowly come together!!


I agree. Slowly but surely she is getting her act together it seems.
Member Since: Julio 28, 2006 Posts: 0 Comments: 51
3040. JLPR 4:14 AM GMT en Agosto 31, 2009    
94L looking better
Member Since: Septiembre 4, 2007 Posts: 36 Comments: 5223
3041. jurakantaino 4:14 AM GMT en Agosto 31, 2009    
Even with the lack of convection 94L remains a pretty organize system, and threatening to say the least. Do to climatology and well organization the northern antilles should remain under alert for the latest updates.
Member Since: Julio 31, 2008 Posts: 0 Comments: 730
3042. reedzone 4:14 AM GMT en Agosto 31, 2009    
As long as that anticyclone is over 94L, those high wind shear winds will not disrupt the center. Seems like 94L is yet again trying to come together. We'll see what happens.. Models look bad for the USA for now, a track towards Florida, but things can change through the days.
Member Since: Julio 1, 2008 Posts: 13 Comments: 7247
3044. 7544 4:15 AM GMT en Agosto 31, 2009    
Quoting Bordonaro:

That appears to be the COC (Center of Circulation) that is not the eye. Looks like 94L is starting to slowly come together!!


hmm thanks thats a nice looking coc pretty tight than we have seen in other invest this could really raamp up fast with a coc like that dmax a comin
Member Since: Mayo 6, 2007 Posts: 0 Comments: 5925
3046. serialteg 4:17 AM GMT en Agosto 31, 2009    
Poor Florida... always getting named here
Member Since: Agosto 22, 2006 Posts: 2 Comments: 1966
3047. winter123 4:18 AM GMT en Agosto 31, 2009    
Quoting KoritheMan:


November only has 30 days.


pwnd.
Member Since: Julio 29, 2006 Posts: 28 Comments: 1700
3048. natrwalkn 4:18 AM GMT en Agosto 31, 2009    
Cold air damming expected over the NC Piedmont for the next few days. Looking forward to some cooler temps! Should struggle to hit 70 tomorrow in Greensboro.
Member Since: Agosto 14, 2008 Posts: 0 Comments: 67
3049. winter123 4:19 AM GMT en Agosto 31, 2009    
Quoting serialteg:


When using Dr. Masters' blog, please refrain from posting material not relevant to the discussion of tropical weather, or the topic of the blog entry itself. Please do not engage in personal attacks or bickering. Material not conforming to these standards should be flagged with the button and ignored.

I got banned possibly for a pic of a cloud shaped like an elephant. In Dr. Masters' blog he discussed a cloud shaped like a wave on Bill's eyewall. Danny kind of looked like an elephant to some people, and it took off from there.

So I can see how posting a Geico lizard pic can get you banned.

Actually, if the the personal attacks / bickering rule were enforced as strictly as the pics...

I was told that talking about a ban can get you re-banned, so if you don't see me for another 24hrs, you know what happened.


wow, amazing i never got banned for how random i am
Member Since: Julio 29, 2006 Posts: 28 Comments: 1700
3050. mikatnight 4:21 AM GMT en Agosto 31, 2009    
15 hour loop:
Member Since: Octubre 18, 2005 Posts: 0 Comments: 1973
3051. stormpetrol 4:23 AM GMT en Agosto 31, 2009    
COC looks more N now I estimate around 13.2/50.3W, quite a shift north compared to the westward movement, imo still think it might clip the Northern Islands and make into the Caribbean though.
Member Since: Abril 29, 2007 Posts: 0 Comments: 6400

Viewing: 3001 - 3051

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66Blog 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
Overcast
44 ° F
Nublado
Community Activity