Dr. Jeff Masters' WunderBlog

No change to Nate; Maria fizzles; Katia headed to Britain
Posted by: Dr. Jeff Masters, 3:47 PM GMT on September 10, 2011 +19
Tropical Storm Nate in Mexico's Bay of Campeche continues to have trouble intensifying. Latest visible satellite loops show that Nate has a large, cloud-filled center, and the storm is probably pulling in dry air to its north into its center. Nate is also likely having trouble with all the cool waters it has stirred to the surface. Assuming Nate is able to close off its center from the dry air, it would take the storm at least a day to tighten up its rather large center, form a solid eyewall, and reach hurricane intensity. Nate doesn't have enough time before landfall for that to happen, and it is unlikely Nate will ever become a hurricane. The latest wind probability forecast form NHC gives Nate a 13% chance of reaching hurricane strength on Sunday. Latest radar imagery from Alvarado, Mexico shows heavy rains from Nate are affecting the coast near Veracruz, and heavy rains of 4 - 6 inches will be the main threat from Nate.


Figure 1. True-color MODIS image of Tropical Storm Nate taken at 12:45 pm EDT Friday, September 9, 2011. At the time, Nate was a tropical storm with 50 mph winds. Image credit: NASA.

Nate is a small storm, and is not likely to bring significant rains to Texas; only extreme South Texas near Brownsville could see an inch or so of rain on Sunday from an outer spiral band of Nate. Our latest wundermap wind forecast map from the European Center model, with the fire layer turned on, shows that Nate's wind field on Saturday and Sunday will not be large enough to fan the fires burning in Texas.

Tropical Storm Maria
Tropical Storm Maria doesn't look much like a tropical storm--on the latest satellite imagery it looks like a squashed question mark instead of a spiral. The surface circulation center is very poorly defined, and moderate wind shear of 15 - 20 knots has really done the Lesser Antilles Islands a big favor by ripping up Maria. It is doubtful this storm will generate any sustained winds of tropical storm force in the islands, and it is a 50/50 proposition that Maria will degenerate into a tropical disturbance and become ex-Tropical Storm Maria later today. Martinique radar shows heavy rains from Maria are mostly east of the islands, and the thunderstorms are not well-organized into spiral bands. The wind shear affecting Maria will probably last through Sunday. By Monday, wind shear is predicted to fall enough so that Maria could potentially organize again. However, the storm is expected to be far from land when that occurs. Bermuda could see a few rain showers from Maria on Wednesday, and Maria may be a threat to southeast Newfoundland late next week.


Figure 2. Morning satellite image of Tropical Storm Maria shows the the storm looks like a squashed question mark?

Hurricane Katia
Hurricane Katia brushed by Newfoundland, Canada this morning, and is now racing east-northeast at 52 mph into the open Atlantic. With water temperatures 19°C (66°F) underneath it, Katia has lost its tropical characteristics, and has transitioned to a powerful extratropical storm. Extratropical Storm Katia will continue east-northeastward towards Europe, and on Monday, the storm will pass very close to northern British Isles. The offshore waters of Northern Ireland and Western Scotland can expect storm-force winds of 50 - 60 mph on Monday as Katia roars past to the north. The storm will bring 2 - 4 inches of rain to the coast, and likely cause significant tree damage and power failures.


Figure 3. Image of Hurricane Katia taken from the International Space Station at 15 GMT September 9, 2011, by astronaut Ron Garan. At the time, Katia was a Category 1 hurricane with 85 mph winds. Long Island, New York is visible at the lower left.

Elsewhere in the tropics
The NOGAPS and UKMET models predict the possible development of a tropical wave 6 - 7 days from now off the coast of Africa.

I'll have an update by early Sunday afternoon.

Jeff Masters
Categories: Hurricane
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1251. Orcasystems 2:53 PM GMT on September 11, 2011    
Member Since: October 1, 2007 Posts: 77 Comments: 26077
1254. AussieStorm 2:55 PM GMT on September 11, 2011    
Quoting Tazmanian:
hi all



i got my new Acer on friday




so what i miss i had a 45hr ban from the blog but now i am out has you can see

self imposed ban or admin imposed ban?

You missed a whole lot of bickering and second calling the NHC, oh, wait, that happens here everyday, so I guess you missed nothing.
Member Since: September 30, 2007 Posts: 5 Comments: 13358
1255. aspectre 2:57 PM GMT on September 11, 2011    
18.1n62.6w, 18.6n63.3w have been re-evaluated&altered for TS.Maria's_12pmGMT_ATCF
18.0n62.6w, 18.6n63.3w, 19.2n64.1w are now the most recent positions.
16.9n61.2w, 17.5n62.0w, 18.0n62.6w, 18.6n63.3w, 19.2n64.1w over the past 24hours
Starting 10Sept_12pmGMT and ending 11Sept_12pmGMT

The 4 eastern line-segments represent TropicalStormMaria's path,
the westernmost line-segment is the straightline projection,
and the coastline blob at 31.447n81.230w-08ga is the endpoint of the (freshly*recalculated) most
recent
previous straightline projection connected to its nearest airport.

Using straightline projection of the travel-speed&heading derived from the
ATCF coordinates spanning the 6hours between 6amGMT then 12pmGMT :
TS.Maria's travel-speed was 11.2mph(18k/h) on a heading of 308.4degrees(NW)
TS.Maria was headed toward passage over PonteVedraBeach,Florida ~4days19hours from now.

Copy&paste gls, 31.447n81.230w-08ga, 16.9n61.2w-17.5n62.0w, 17.5n62.0w-18.0n62.6w, 18.0n62.6w-18.6n63.3w, 18.0n62.6w-31.447n81.230w, 08ga, 18.6n63.3w-19.2n64.1w, fd48, 18.6n63.3w-30.136n81.349w into the GreatCircleMapper for more info
(And to get a look at the freshly recalculated previous straightline projection... as well as to get an idea why only the most recent previous endpoint is posted).

The previous mapping (for 10Sept_12pmGMT yesterday).
Decided to take a break in the mapping until NHC/ATCF figured out where the heck Maria actually was within a tenth-or-so degrees. Re-evaluating&altering previous coordinates by a distance of 0.64degrees(0.5n&0.4w from 15.5n59.8w to 16.0n60.2w) made their associated headings, travel-speeds, and straightline projections totally irrelevant.

* The change in previous coordinates made blog1925page23comment1114 irrelevant. And since this is a new mapping after 24hours without...
Member Since: August 21, 2007 Posts: 0 Comments: 4846
1256. Tazmanian 2:58 PM GMT on September 11, 2011    
Quoting AussieStorm:

self imposed ban or admin imposed ban?

You missed a whole lot of bickering and second calling the NHC, oh, wait, that happens here everyday, so I guess you missed nothing.



self imposed ban or admin imposed ban?



whats this say i could not get on the hole blogs
Member Since: May 21, 2006 Posts: 5088 Comments: 111360
1257. WeatherNerdPR 2:58 PM GMT on September 11, 2011    
Quoting Tazmanian:
hi all



i got my new Acer on friday




so what i miss i had a 45hr ban from the blog but now i am out has you can see

Maria almost died, and has now been reborn. lol
Member Since: July 7, 2010 Posts: 0 Comments: 5464
1258. Tazmanian 2:58 PM GMT on September 11, 2011    
any ways back tooo the weather
Member Since: May 21, 2006 Posts: 5088 Comments: 111360
1259. islander101010 2:58 PM GMT on September 11, 2011    
was not a believer but pretty much am now its the yr of the dry air. previously i thought it was cool water below the surface. good to see you back taj
Member Since: September 11, 2010 Posts: 0 Comments: 2968
1260. BahaHurican 2:58 PM GMT on September 11, 2011    
Quoting P451:


THANK YOU


I don't know why my posts are misinterpreted as trolling or bashing.

That is not the intent.

You know u r really bashing, and just calling it polite discussion.... admit it... then you can get on the road to recovery....

lol

Just messin' witcha...

Quoting Chicklit:
The NHC would also be criticized had they put up watches and warnings and nothing happened.
Just by a different group of pple.... isn't there some Aesop's fable about the two men and the donkey?

Member Since: October 25, 2005 Posts: 19 Comments: 17676
1261. Tazmanian 2:59 PM GMT on September 11, 2011    
Quoting WeatherNerdPR:

Maria almost died, and has now been reborn. lol




wow cool so how many RIPS did you give here toomake here come back too life
Member Since: May 21, 2006 Posts: 5088 Comments: 111360
1262. aislinnpaps 3:01 PM GMT on September 11, 2011    
Quoting Tazmanian:
hi all



i got my new Acer on friday




so what i miss i had a 45hr ban from the blog but now i am out has you can see


Welcome back, Taz
Member Since: August 22, 2009 Posts: 0 Comments: 2438
1263. WeatherNerdPR 3:02 PM GMT on September 11, 2011    
Quoting Tazmanian:




wow cool so how many RIPS did you give here toomake here come back too life

I didn't say RIP. But I'm pretty sure she died once. So she's a zombie.
Member Since: July 7, 2010 Posts: 0 Comments: 5464
1264. Tazmanian 3:03 PM GMT on September 11, 2011    
Quoting aislinnpaps:


Welcome back, Taz



thanks
Member Since: May 21, 2006 Posts: 5088 Comments: 111360
1265. washingtonian115 3:03 PM GMT on September 11, 2011    
Quoting Tazmanian:




wow cool so how many RIPS did you give here toomake here come back too life
I got an Acer to Taz.We all know what today is people."We shall never Forget"
Member Since: August 14, 2010 Posts: 5 Comments: 10675
1266. Tazmanian 3:03 PM GMT on September 11, 2011    
Quoting WeatherNerdPR:

I didn't say RIP. But I'm pretty sure she died once. So she's a zombie.



there a storm name i like too see zombie.
Member Since: May 21, 2006 Posts: 5088 Comments: 111360
1267. h0db 3:03 PM GMT on September 11, 2011    
Quoting GTcooliebai:


Not a big fan of pointless gestures by people sitting in front of their computers, or filling up the blog with this topic. There are literally hundreds of online sites for 9/11 discussion.
Member Since: September 5, 2005 Posts: 0 Comments: 88
1268. JNCali 3:04 PM GMT on September 11, 2011    
Quoting Tazmanian:
hi all i got my new Acer on friday so what i miss i had a 45hr ban from the blog but now i am out has you can see

Hi Taz..What model did you get?? Acer's are sweet... Do you have the broadband speed to take advantage of it?
Member Since: September 9, 2010 Posts: 5 Comments: 1032
1269. Tazmanian 3:05 PM GMT on September 11, 2011    
Quoting washingtonian115:
I got an Acer to Taz.We all know what today is people."We shall never Forget"



yup today is 9-11-11 wish we sould nevere for get
Member Since: May 21, 2006 Posts: 5088 Comments: 111360
1270. WeatherNerdPR 3:05 PM GMT on September 11, 2011    
...CENTER OF MARINA PASSING JUST NORTH OF THE VIRGIN ISLANDS...STRONG WINDS REMAIN WELL NORTH OVER THE ATLANTIC WATERS...
11:00 AM AST Sun Sep 11
Location: 19.0°N 64.6°W
Max sustained: 60 mph
Moving: WNW at 10 mph
Min pressure: 1007 mb
Member Since: July 7, 2010 Posts: 0 Comments: 5464
1271. pottery 3:07 PM GMT on September 11, 2011    
Quoting h0db:


Not a big fan of pointless gestures by people sitting in front of their computers, or filling up the blog with this topic. There are literally hundreds of online sites for 9/11 discussion.

That's harsh.....
Member Since: October 24, 2005 Posts: 0 Comments: 20712
1272. JNCali 3:07 PM GMT on September 11, 2011    
Quoting MoldyinMS:
Newbie here. Have been following this blog since 2005. Looking to learn and hoping not to make stupid comments. I will apologize in advance. Thanks.

Hey Moldy.. I have found this blog to be educational on so many 'levels'.... Since you've been lurking I'm sure you know what I mean ;)
Member Since: September 9, 2010 Posts: 5 Comments: 1032
1273. Tazmanian 3:10 PM GMT on September 11, 2011    
Quoting JNCali:

Hi Taz..What model did you get?? Acer's are sweet... Do you have the broadband speed to take advantage of it?




hi i got the Acer 770Z5-4623



it has 4GB RAM 640GB hard drive window 7-SP 1 with IE 9 and window live 2011 and yes i have DSL vary fast my downlode speed is 317kt my core is intel core B940 processor 2.0GHz.2M L3 Cache and a 17.3" HD + LED LCD and it has a DVD- super multi DL drive


oh and my window index is 5.1
Member Since: May 21, 2006 Posts: 5088 Comments: 111360
1274. Martuch 3:11 PM GMT on September 11, 2011    
Today 11.00 am
sunny day 87 temp NO Rain just another suumer day
San juan PR

Member Since: September 13, 2010 Posts: 0 Comments: 12
1275. washingtonian115 3:12 PM GMT on September 11, 2011    
Quoting WeatherNerdPR:
...CENTER OF MARINA PASSING JUST NORTH OF THE VIRGIN ISLANDS...STRONG WINDS REMAIN WELL NORTH OVER THE ATLANTIC WATERS...
11:00 AM AST Sun Sep 11
Location: 19.0°N 64.6°W
Max sustained: 60 mph
Moving: WNW at 10 mph
Min pressure: 1007 mb
Lol.Epic one at that.
Member Since: August 14, 2010 Posts: 5 Comments: 10675
1276. stormwatcherCI 3:13 PM GMT on September 11, 2011    
Quoting MelbourneTom:
ADT Location at 11/0515Z 18.76N 63.19W
RCON Location at 11/1359Z 18.75N 64.60W

Assuming RCON has located the center, if there is one, on the first pass. AND this is a big assumtion, THEN it is moving due W at this point.
MARIA HAS BEEN MOVING NEARLY DUE WESTWARD THIS MORNING...HOWEVER THE
LONGER TERM MOTION IS WEST-NORTHWESTWARD AT ABOUT 8 KT.

You are correct.
Member Since: October 9, 2008 Posts: 0 Comments: 8043
1277. JNCali 3:15 PM GMT on September 11, 2011    
Quoting Tazmanian:




hi i got the Acer 770Z5-4623 ...

You will rule the world with that monster...
Member Since: September 9, 2010 Posts: 5 Comments: 1032
1278. BahaHurican 3:15 PM GMT on September 11, 2011    
Quoting PensacolaDoug:


"Public Service Day" would include too many rude incompetant, pencil-neck bureurcrats. "First Reponders Day" would target the right group. They do indeed put their lives on the line.
I think the "rude incompetant pencil-neck bureurcrats" NEED to be included. They need to be reminded that while their service to the public may not require giving their lives, they should always give their BEST....

Member Since: October 25, 2005 Posts: 19 Comments: 17676
1279. will40 3:15 PM GMT on September 11, 2011    
Quoting stormwatcherCI:
MARIA HAS BEEN MOVING NEARLY DUE WESTWARD THIS MORNING...HOWEVER THE
LONGER TERM MOTION IS WEST-NORTHWESTWARD AT ABOUT 8 KT.

You are correct.


yes and NHC hinting that the track may have to be moved even more west for the next couple of days
Member Since: September 19, 2005 Posts: 2 Comments: 3439
1280. BahaHurican 3:17 PM GMT on September 11, 2011    
000
WTNT34 KNHC 111516
TCPAT4

BULLETIN
TROPICAL STORM MARIA ADVISORY NUMBER 20...CORRECTED
NWS NATIONAL HURRICANE CENTER MIAMI FL AL142011
1100 AM AST SUN SEP 11 2011

CORRECTED SPELLING OF MARIA IN HEADLINE
...CENTER OF MARIA PASSING JUST NORTH OF THE VIRGIN
ISLANDS...STRONG WINDS REMAIN WELL NORTH OVER THE ATLANTIC
WATERS...

Member Since: October 25, 2005 Posts: 19 Comments: 17676
1281. MelbourneTom 3:18 PM GMT on September 11, 2011    
I suspect Maria will have more W movement then currently forecast. Since she is marginally tropical I don't think the models are handeling her well at this point.

Member Since: June 2, 2007 Posts: 0 Comments: 600
1282. scooster67 3:18 PM GMT on September 11, 2011    
Quoting Tazmanian:



self imposed ban or admin imposed ban?



whats this say i could not get on the hole blogs
Welcome back Taz. Whatever you did to get banned, just learn from it and don't do it again. Your input is appreciated.

How are you liking the Acre?
Member Since: September 26, 2010 Posts: 0 Comments: 637
1283. weatherh98 3:18 PM GMT on September 11, 2011    
Quoting WeatherNerdPR:

I didn't say RIP. But I'm pretty sure she died once. So she's a zombie.


A Nazi zombie? if so imam have to hit the box
Member Since: June 17, 2011 Posts: 11 Comments: 6093
1284. BahaHurican 3:19 PM GMT on September 11, 2011    
Quoting Tazmanian:




hi i got the Acer 770Z5-4623



it has 4GB RAM 640GB hard drive window 7-SP 1 with IE 9 and window live 2011 and yes i have DSL vary fast my downlode speed is 317kt my core is intel core B940 processor 2.0GHz.2M L3 Cache and a 17.3" HD + LED LCD and it has a DVD- super multi DL drive


oh and my window index is 5.1
Ah... very nice indeed.... have fun with that....
Member Since: October 25, 2005 Posts: 19 Comments: 17676
1285. BahaHurican 3:21 PM GMT on September 11, 2011    
Quoting will40:


yes and NHC hinting that the track may have to be moved even more west for the next couple of days
NOT words I want to be hearing.... :o(
Member Since: October 25, 2005 Posts: 19 Comments: 17676
1286. Unfriendly 3:22 PM GMT on September 11, 2011    
ohh computer specs ;)

Built mine from scratch -

P4 Quad-core 2.4 ghz overclocked to 2.7
8800 gTX
750 watt PSU
steelseries siberia headphones (best gaming headphones out there)
24" widescreen w/ 2ms refresh, reso 1920x1080

and my fav: Comcast Ultra 50 - have to ask for it, for me, its ~62 mbps download and 12 mbps upload

**making this weather related**

Maria looks really nice on sat, and even better on my bangin' screen
Member Since: July 21, 2008 Posts: 0 Comments: 287
1287. will40 3:22 PM GMT on September 11, 2011    
Quoting BahaHurican:
NOT words I want to be hearing.... :o(


understands. she is just so shallow
Member Since: September 19, 2005 Posts: 2 Comments: 3439
1288. PensacolaDoug 3:22 PM GMT on September 11, 2011    
Quoting h0db:


Not a big fan of pointless gestures by people sitting in front of their computers, or filling up the blog with this topic. There are literally hundreds of online sites for 9/11 discussion.



Don't let the door hit ya.
Member Since: July 25, 2006 Posts: 0 Comments: 4828
1289. scooster67 3:23 PM GMT on September 11, 2011    
Quoting h0db:


Not a big fan of pointless gestures by people sitting in front of their computers, or filling up the blog with this topic. There are literally hundreds of online sites for 9/11 discussion.
I don't see a problem with 9/11 tributes this weekend. Most here feel like family with each other and enjoy expressing our feeling about the subject.

Besides Maria there is nothing to talk about.
Member Since: September 26, 2010 Posts: 0 Comments: 637
1290. DJMedik91 3:23 PM GMT on September 11, 2011    
9/11 has been known as Patriot Day for 9 years now. No need to start calling it something else.
Member Since: August 1, 2011 Posts: 0 Comments: 106
1291. BahaHurican 3:24 PM GMT on September 11, 2011    
INTERESTS IN THE VIRGIN ISLANDS...PUERTO RICO...THE TURKS AND CAICOS
ISLANDS...AND THE SOUTHEASTERN BAHAMAS SHOULD MONITOR THE PROGRESS
OF MARIA.

Shucks... thought we were done with this....

Also I note the pressure is 1007, up from 1005 earlier.
Member Since: October 25, 2005 Posts: 19 Comments: 17676
1292. Tazmanian 3:24 PM GMT on September 11, 2011    
Quoting BahaHurican:
Ah... very nice indeed.... have fun with that....



thanks
Member Since: May 21, 2006 Posts: 5088 Comments: 111360
1293. capeflorida 3:26 PM GMT on September 11, 2011    
Don't think we will be seeing P451 or Dewey much more today as they just banned Deweys blog and I believe him and P451 individually.
Member Since: October 21, 2009 Posts: 0 Comments: 46
1294. PcolaDan 3:26 PM GMT on September 11, 2011    
Quoting h0db:


Not a big fan of pointless gestures by people sitting in front of their computers, or filling up the blog with this topic. There are literally hundreds of online sites for 9/11 discussion.


You're welcome to take a break from commenting on the blog today if you wish (a not uncommon occurrence considering how few posts you have). This is the community people here know, not some unknown online site. For many, this place is their "online friends" where they can speak of what is on their mind during certain occasions. There are a multitude of topics discussed here at various times of the year. I much prefer a "pointless gesture" to an arrogant and lame post of what one feels should be posted on this blog.
Member Since: August 22, 2008 Posts: 12 Comments: 6008
1295. scooster67 3:26 PM GMT on September 11, 2011    
Quoting Tazmanian:




hi i got the Acer 770Z5-4623



it has 4GB RAM 640GB hard drive window 7-SP 1 with IE 9 and window live 2011 and yes i have DSL vary fast my downlode speed is 317kt my core is intel core B940 processor 2.0GHz.2M L3 Cache and a 17.3" HD + LED LCD and it has a DVD- super multi DL drive


oh and my window index is 5.1

Sweet! I am stuck with my Dell 1501. Can't wait until I can afford something newer.
Member Since: September 26, 2010 Posts: 0 Comments: 637
1296. will40 3:29 PM GMT on September 11, 2011    
Quoting PcolaDan:


You're welcome to take a break from commenting on the blog today if you wish (a not uncommon occurrence considering how few posts you have). This is the community people here know, not some unknown online site. For many, this place is their "online friends" where they can speak of what is on their mind during certain occasions. There are a multitude of topics discussed here at various times of the year. I much prefer a "pointless gesture" to an arrogant and lame post of what one feels should be posted on this blog.



yes i hope the good Dr will mention this day when he updates
Member Since: September 19, 2005 Posts: 2 Comments: 3439
1297. ShenValleyFlyFish 3:29 PM GMT on September 11, 2011    
Quoting WeatherNerdPR:

Maria almost died, and has now been reborn. lol

Member Since: September 9, 2007 Posts: 36 Comments: 4684
1298. SJPhoto 3:31 PM GMT on September 11, 2011    
seem like Maria is slowing down considerably. IR loops for the past 4 hrs just have her static hovering east of PR.....is she trying to re-organize her COC???
Member Since: September 7, 2011 Posts: 0 Comments: 0
1299. MoldyinMS 3:31 PM GMT on September 11, 2011    
Quoting JNCali:

Hey Moldy.. I have found this blog to be educational on so many 'levels'.... Since you've been lurking I'm sure you know what I mean ;)
Member Since: September 9, 2011 Posts: 0 Comments: 20
1301. TropicalAnalystwx13 3:33 PM GMT on September 11, 2011    
Good Morning All.

My avatar tells the story.

~ 9/11/01 ~ NEVER FORGET
Member Since: July 6, 2010 Posts: 89 Comments: 25341

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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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