Lesser Antilles Disturbance 97L Still Disorganized

By: Dr. Jeff Masters , 2:34 PM GMT on September 03, 2013

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A tropical wave over the Lesser Antilles Islands (Invest 97L) is moving west-northwest at 10 mph, and is bringing sporadic heavy rain showers to the islands. Top sustained winds observed in the islands as of 10 am AST Tuesday were mostly below 15 mph. Heavy thunderstorm activity has been low since Monday, and is spread out, as seen on satellite loops. The thunderstorms are poorly organized, and there is no sign of a well-organized surface circulation. Martinique radar shows little evidence of rotation to the echoes, and no low-level spiral bands forming. Upper level winds are favorable for development, with wind shear a low 5 - 10 knots, and an upper-level anticyclone overhead. An area of dry air from the Saharan Air Layer (SAL) surrounds 97L and is interfering with development, though the the 12Z Tuesday balloon sounding from Guadeloupe near the center of 97L showed moist air through the entire depth of the atmosphere.


Figure 1. Latest satellite image of Invest 97L.

Forecast for 97L
Wind shear is expected to be low through Friday, and ocean temperatures will be warm, 29°C. The disturbance has not been able to generate enough thunderstorms to moisten the surrounding atmosphere much, and dry air may continue to slow down development over the next few days. The models take 97L to the west-northwest, bringing it near or over Puerto Rico or Hispaniola on Wednesday night. A track over the high mountains of Hispaniola would disrupt the circulation of 97L, forcing the storm to regroup on Thursday over the Southeast Bahamas and Turks and Caicos Islands. The best chance for development of 97L would appear to be on Friday, after the storm has finished its encounter with Hispaniola. This morning's 00Z run of the experimental GFDL ensemble--which produces 10 simulations with slightly varying initial conditions to create a plume of potential storm tracks--foresees that once 97L organizes into a tropical depression, it might take only two days for it to intensify into a hurricane to the north of Hispaniola. The wave will bring heavy rain showers to the Lesser Antilles islands on Tuesday and Wednesday, and this activity will likely spread to Puerto Rico, the Virgin Islands, the Dominican Republic, and Haiti on Wednesday and Thursday. These rains will be capable of causing life-threatening flash flooding and mudslides in mountainous regions of Puerto Rico and Hispaniola. Of our three reliable models for predicting genesis, the UKMET, GFS, and European models, only the UKMET model develops the disturbance, predicting it will become a tropical depression over the Central Bahamas on Saturday. There will be a strong trough of low pressure along the U.S. East Coast this weekend, which will be capable of turning 97L to the north before the storm can hit the U.S. In their 8 am EDT Tuesday Tropical Weather Outlook, NHC left the 5-day odds of formation of 97L at 50%, and 2-day odds at 20%. The Hurricane Hunters are on call to investigate 97L Wednesday afternoon. The flight scheduled for today will likely be cancelled. The Hurricane and Severe Storm Sentinel Mission, a 5-year field project utilizing two remotely crewed Global Hawk aircraft to overfly tropical storms and hurricanes, will have one of their aircraft investigate 97L today, and again on Wednesday. You can follow the progress of the aircraft using NASA's live-plane tracker map (Global Hawk AV6 is tail number NASA872, and Global Hawk AV1 is tail number NASA871.)

98L off the coast of Africa and a Yucatan Peninsula tropical wave
A tropical wave that emerged from the coast of Africa on Monday (Invest 98L) is expected to track northwest over the Cape Verde Islands. This course will take 98L into a region of ocean where historically, very few tropical cyclones have made the long journey across the Atlantic to affect North America. In their 8 am EDT Tuesday Tropical Weather Outlook, NHC put the 5-day odds of development at 20%.

A tropical wave over Mexico's Yucatan Peninsula has a respectable area of heavy thunderstorms associated with it that is bringing heavy rains. This activity will push over the extreme Southern Gulf of Mexico's Bay of Campeche on Wednesday. The wave will have two days over water to develop before moving ashore on the Mexican coast between Veracruz and Tampico on Friday. In their 8 am EDT Tuesday Tropical Weather Outlook, NHC put the 5-day odds of development at 30%, and 2-day odds at 20%.

Jeff Masters

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Quoting 401. MiamiHurricanes09:
WU evidently heartbroken by Sullivan's percentages. lol


Percentages are good. Even though it is getting better organized this afternoon, it's heading into a climatologically unfavorable area for TC development. Still has a little more time today into early tomorrow at its current speed to establish a well organized low level structure. Also, track is a bit uncertain and, as always, the big islands throw a curveball into development chances.
Member Since: July 15, 2006 Posts: 17 Comments: 10244
Quoting 405. IKE:
WU bloggers after the 2pm TWO.....




I look a bit different though :)
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Just to supplement the current NHC thinking on 97L; here is the early am discussion from the NCEP Caribbean Desk on conditions as to where 97L is headed:

TROPICAL DISCUSSION - INTERNATIONAL DESKS
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
656 AM EDT TUE SEP 03 2013

PRELIMINARY DISCUSSION FOR PUERTO RICO AND THE USVI. RETROGRESSING TUTT LOW TO THE NORTH-NORTHEAST OF THE LEEWARD ISLANDS...AND AN EASTERLY WAVE...SUSTAIN MOISTURE CONVERGENCE ACROSS THE EASTERN CARIBBEAN ISLANDS. PUERTO RICO AND THE USVI ARE ON THE CONVERGENT SIDE OF THE UPPER LEVEL SYSTEM. THIS IS CAPPING CONVECTIVE DEVELOPMENT ACROSS THE FORECAST AREA...WITH TRADE WIND SHOWERS PESTERING THE USVI-EASTERN/NORTHERN PUERTO RICO.

UPPER TROUGH IS TO GENERALLY REMAIN TO THE NORTH OF THE FORECAST AREA AS A CELL OF THE SUBEQUATORIAL RIDGE ESTABLISHES A FOOTHOLD OVER THE EASTERN CARIBBEAN. THIS IS TO GENERALLY FAVOR AN UPPER DIVERGENT PATTERN ACROSS THE NORTHEAST CARIBBEAN ISLANDS THAT IS TO INTENSIFY THROUGH WEDNESDAY MORNING. PERTURBATION IN THE TRADES CROSSES THE VIRGIN ISLES INTO EASTERN PUERTO RICO DURING THE
MORNING HOURS ON WEDNESDAY...AND THROUGH THE DAY IT IS TO CONTINUE ACROSS PUERTO RICO TO THE MONA PASSAGE. ON ITS WAKE...A MOIST SOUTHEASTERLY FLOW IS TO ESTABLISH. THE GLOBAL MODELS AGREE ON DEEP ITCZ RELATED MOISTURE TO POOL ACROSS THE FORECAST AREA...WITH HIGH PWAT VALUES EXPECTED TO THEN PERSIST THROUGH THE REST OF THE WEEK INTO THE WEEKEND.


That upper level divergent pattern is probably helping 97L try to organize.....Now it needs some more lower level convergence over the next 48 as well.
Member Since: August 8, 2006 Posts: 0 Comments: 9119
I think sullivan just guessed the odds. Remember he doesn't work at the nhc. Probably these odds will be raised again at 8p By the regular guys.
Member Since: May 30, 2013 Posts: 0 Comments: 493
Quoting 408. Abacosurf:


GENERALLY WEST-NORTHWESTWARD lol


So it's up for debate then...till the next TWO ? ;)
Member Since: October 28, 2006 Posts: 57 Comments: 30486
Quoting 373. Drakoen:


14.8N 62.8W


hey were you the guy in met school a few years ago?

if you are, do you know why the models are mving so much to the north but yet we don't see what theyre thiniking is? I would think more wnw
Member Since: April 24, 2011 Posts: 1 Comments: 601
97L has only just started to look interesting. Let's see what the next few hours brings and whether or not the trend continues. No need to increase percentages given what we've seen this season.
Member Since: October 28, 2006 Posts: 57 Comments: 30486
Quoting 401. MiamiHurricanes09:
WU evidently heartbroken by Sullivan's percentages. lol


Good! I hope it gets destroyed over Hispaniola
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Quoting 398. clwstmchasr:


LOL. They have 97L moving WNW. Let's here the "no, its moving west" on the blog.


No, It's moving west!.....:P
Member Since: September 18, 2010 Posts: 0 Comments: 5222
Quoting 403. JRRP:
SHOWERS AND THUNDERSTORMS CONTINUE IN ASSOCIATION WITH AN AREA OF
LOW PRESSURE CENTERED ABOUT 100 MILES WEST OF DOMINICA. UPPER-LEVEL
WINDS ARE EXPECTED TO REMAIN FAVORABLE FOR DEVELOPMENT OVER THE
NEXT FEW DAYS...BUT INTERACTION WITH THE LAND MASSES OF THE GREATER
ANTILLES COULD INHIBIT TROPICAL CYCLONE FORMATION AS THE SYSTEM
MOVES GENERALLY WEST-NORTHWESTWARD AT AROUND 10 MPH. THIS SYSTEM
HAS A MEDIUM CHANCE...30 PERCENT...OF BECOMING A TROPICAL CYCLONE
DURING THE NEXT 48 HOURS...AND A MEDIUM CHANCE...50 PERCENT...OF
BECOMING A TROPICAL CYCLONE DURING THE NEXT 5 DAYS. LOCALLY HEAVY
RAINFALL AND GUSTY WINDS ARE EXPECTED TO AFFECT PORTIONS OF THE
NORTHERN LESSER ANTILLES OVER THE NEXT DAY OR SO...AND SPREAD OVER
PUERTO RICO BY THURSDAY.


GENERALLY WEST-NORTHWESTWARD lol
Member Since: August 28, 2008 Posts: 0 Comments: 360
Member Since: July 3, 2005 Posts: 423 Comments: 128231
Quoting 397. MississippiWx:
000
ABNT20 KNHC 031803
TWOAT

TROPICAL WEATHER OUTLOOK
NWS NATIONAL HURRICANE CENTER MIAMI FL
ISSUED BY THE NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
200 PM EDT TUE SEP 3 2013

FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...

Anyone notice the bold?
THIS IS A TEST
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405. IKE
WU bloggers after the 2pm TWO.....


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Quoting 377. WoodyFL:


It sure looks like it. I could send you a link of all the other images on that site if you want.

Just click on the MTCWSA and you get other images.

Link


Thanks
Member Since: September 18, 2010 Posts: 0 Comments: 5222
403. JRRP
SHOWERS AND THUNDERSTORMS CONTINUE IN ASSOCIATION WITH AN AREA OF
LOW PRESSURE CENTERED ABOUT 100 MILES WEST OF DOMINICA. UPPER-LEVEL
WINDS ARE EXPECTED TO REMAIN FAVORABLE FOR DEVELOPMENT OVER THE
NEXT FEW DAYS...BUT INTERACTION WITH THE LAND MASSES OF THE GREATER
ANTILLES COULD INHIBIT TROPICAL CYCLONE FORMATION AS THE SYSTEM
MOVES GENERALLY WEST-NORTHWESTWARD AT AROUND 10 MPH. THIS SYSTEM
HAS A MEDIUM CHANCE...30 PERCENT...OF BECOMING A TROPICAL CYCLONE
DURING THE NEXT 48 HOURS...AND A MEDIUM CHANCE...50 PERCENT...OF
BECOMING A TROPICAL CYCLONE DURING THE NEXT 5 DAYS. LOCALLY HEAVY
RAINFALL AND GUSTY WINDS ARE EXPECTED TO AFFECT PORTIONS OF THE
NORTHERN LESSER ANTILLES OVER THE NEXT DAY OR SO...AND SPREAD OVER
PUERTO RICO BY THURSDAY.
Member Since: August 16, 2007 Posts: 0 Comments: 5788
Quoting 381. RascalNag:


I don't think so. I would have agreed with that last night when all the convection was there, but now the LLC seems to have firmly relocated further to the SW. As Dr. Masters pointed out, the convection to the north is showing some outflow boundaries as it weakens and I would guess that anything in that area is going to just fall in line with the LLC at around 14.3N, 63.3W.


Yeah, but it you look it seems that the llc that we have been following took a jog to the north and east a little bit in the last few frames.

The circulation up north (mid-level) is falling apart, and the llc relocating under the convection to the south.
Member Since: June 25, 2011 Posts: 2 Comments: 3732
WU evidently heartbroken by Sullivan's percentages. lol
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Quoting 389. HurriHistory:
Someone fall asleep in the men's room at the NHC?


The 2:00 has been out for a few minutes already


Member Since: April 24, 2011 Posts: 1 Comments: 601
399. IKE
Quoting clwstmchasr:


LOL. They have 97L moving WNW. Let's here the "no, its moving west" on the blog.
And we'll hear.... """they should have raised the odds."""
Member Since: Posts: Comments:
000
ABNT20 KNHC 031803
TWOAT

TROPICAL WEATHER OUTLOOK
NWS NATIONAL HURRICANE CENTER MIAMI FL
ISSUED BY THE NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
200 PM EDT TUE SEP 3 2013

FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...

Anyone notice the bold?
Member Since: July 15, 2006 Posts: 17 Comments: 10244
Quoting 379. HurriHistory:
The 2:PM is late. What's going on?

NHC is prolly very surprised at what's going on last few hrs. thinking carefully of what to write.
Member Since: August 6, 2007 Posts: 0 Comments: 693
395. Relix
Following the convection mass and not the hard-to-spot LLC the whole convection is aiming for Mona Passage. Anyone else agrees?
Member Since: Posts: Comments:
AS THE SYSTEM
MOVES GENERALLY WEST-NORTHWESTWARD AT AROUND 10 MPH
Member Since: October 6, 2007 Posts: 0 Comments: 6166
Quoting 376. nrtiwlnvragn:


Might be WPC's monthly test one.
You were right. :) Bad time for it IMO.
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392. IKE
LOL....status quo on 97L. Lower odds on the other 2.
Member Since: Posts: Comments:
000
ABNT20 KNHC 031803
TWOAT

TROPICAL WEATHER OUTLOOK
NWS NATIONAL HURRICANE CENTER MIAMI FL
ISSUED BY THE NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
200 PM EDT TUE SEP 3 2013

FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...

SHOWERS AND THUNDERSTORMS CONTINUE IN ASSOCIATION WITH AN AREA OF
LOW PRESSURE CENTERED ABOUT 100 MILES WEST OF DOMINICA. UPPER-LEVEL
WINDS ARE EXPECTED TO REMAIN FAVORABLE FOR DEVELOPMENT OVER THE
NEXT FEW DAYS...BUT INTERACTION WITH THE LAND MASSES OF THE GREATER
ANTILLES COULD INHIBIT TROPICAL CYCLONE FORMATION AS THE SYSTEM
MOVES GENERALLY WEST-NORTHWESTWARD AT AROUND 10 MPH. THIS SYSTEM
HAS A MEDIUM CHANCE...30 PERCENT...OF BECOMING A TROPICAL CYCLONE
DURING THE NEXT 48 HOURS...AND A MEDIUM CHANCE...50 PERCENT...OF
BECOMING A TROPICAL CYCLONE DURING THE NEXT 5 DAYS. LOCALLY HEAVY
RAINFALL AND GUSTY WINDS ARE EXPECTED TO AFFECT PORTIONS OF THE
NORTHERN LESSER ANTILLES OVER THE NEXT DAY OR SO...AND SPREAD OVER
PUERTO RICO BY THURSDAY.

A TROPICAL WAVE OVER THE EASTERN BAY OF CAMPECHE IS MOVING
WESTWARD AT ABOUT 10 MPH. THERE IS SOME POTENTIAL FOR DEVELOPMENT...
AND THIS SYSTEM HAS A LOW CHANCE...20 PERCENT...OF BECOMING A
TROPICAL CYCLONE DURING THE NEXT 48 HOURS...AND A LOW CHANCE...
20 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 5 DAYS.

A TROPICAL WAVE WITH AN ASSOCIATED AREA OF LOW PRESSURE IS LOCATED
NEAR THE WEST COAST OF AFRICA...SEVERAL HUNDRED MILES SOUTHEAST OF
THE CAPE VERDE ISLANDS. ENVIRONMENTAL CONDITIONS ARE EXPECTED TO
BE MARGINALLY FAVORABLE FOR DEVELOPMENT OVER THE NEXT FEW DAYS
WHILE THE DISTURBANCE MOVES WEST-NORTHWESTWARD TO NORTHWESTWARD AT
10 TO 15 MPH. THIS SYSTEM HAS A LOW CHANCE...NEAR 0 PERCENT...OF
BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS...AND A LOW
CHANCE...10 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE
NEXT 5 DAYS.

&&

FIVE-DAY FORMATION PROBABILITIES ARE EXPERIMENTAL IN 2013. COMMENTS
ON THE EXPERIMENTAL FORECASTS CAN BE PROVIDED AT...

WWW.NWS.NOAA.GOV/SURVEY/NWS-SURVEY.PHP?CODE=ETWO

$$
FORECASTER SULLIVAN
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dvorak numbers a few hours old

DATE TIME LAT LON CLASSIFICATION ID NAME
20130903 1145 14.5 62.9 Too Weak 97L 97L
20130903 0545 14.8 61.4 T1.0/1.0 97L 97L
20130902 2345 14.3 60.3 Too Weak 97L 97L
20130902 1745 14.0 59.7 Too Weak 97L 97L
Member Since: April 24, 2011 Posts: 1 Comments: 601
Someone fall asleep in the men's room at the NHC?
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what happern!!! I
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Quoting 373. Drakoen:


14.8N 62.8W


Thanks, that was what I was seeing, too. And shows up in the CMISS Maps for 850 mb vorticity.

Member Since: June 25, 2011 Posts: 2 Comments: 3732
0
Member Since: Posts: Comments:
385. IKE
TROPICAL WEATHER OUTLOOK
NWS NATIONAL HURRICANE CENTER MIAMI FL
ISSUED BY THE NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
200 PM EDT TUE SEP 3 2013

FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...

SHOWERS AND THUNDERSTORMS CONTINUE IN ASSOCIATION WITH AN AREA OF
LOW PRESSURE CENTERED ABOUT 100 MILES WEST OF DOMINICA. UPPER-LEVEL
WINDS ARE EXPECTED TO REMAIN FAVORABLE FOR DEVELOPMENT OVER THE
NEXT FEW DAYS...BUT INTERACTION WITH THE LAND MASSES OF THE GREATER
ANTILLES COULD INHIBIT TROPICAL CYCLONE FORMATION AS THE SYSTEM
MOVES GENERALLY WEST-NORTHWESTWARD AT AROUND 10 MPH. THIS SYSTEM
HAS A MEDIUM CHANCE...30 PERCENT...OF BECOMING A TROPICAL CYCLONE
DURING THE NEXT 48 HOURS...AND A MEDIUM CHANCE...50 PERCENT...OF
BECOMING A TROPICAL CYCLONE DURING THE NEXT 5 DAYS. LOCALLY HEAVY
RAINFALL AND GUSTY WINDS ARE EXPECTED TO AFFECT PORTIONS OF THE
NORTHERN LESSER ANTILLES OVER THE NEXT DAY OR SO...AND SPREAD OVER
PUERTO RICO BY THURSDAY.

A TROPICAL WAVE OVER THE EASTERN BAY OF CAMPECHE IS MOVING
WESTWARD AT ABOUT 10 MPH. THERE IS SOME POTENTIAL FOR DEVELOPMENT...
AND THIS SYSTEM HAS A LOW CHANCE...20 PERCENT...OF BECOMING A
TROPICAL CYCLONE DURING THE NEXT 48 HOURS...AND A LOW CHANCE...
20 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 5 DAYS.

A TROPICAL WAVE WITH AN ASSOCIATED AREA OF LOW PRESSURE IS LOCATED
NEAR THE WEST COAST OF AFRICA...SEVERAL HUNDRED MILES SOUTHEAST OF
THE CAPE VERDE ISLANDS. ENVIRONMENTAL CONDITIONS ARE EXPECTED TO
BE MARGINALLY FAVORABLE FOR DEVELOPMENT OVER THE NEXT FEW DAYS
WHILE THE DISTURBANCE MOVES WEST-NORTHWESTWARD TO NORTHWESTWARD AT
10 TO 15 MPH. THIS SYSTEM HAS A LOW CHANCE...NEAR 0 PERCENT...OF
BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS...AND A LOW
CHANCE...10 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE
NEXT 5 DAYS.

&&

FIVE-DAY FORMATION PROBABILITIES ARE EXPERIMENTAL IN 2013. COMMENTS
ON THE EXPERIMENTAL FORECASTS CAN BE PROVIDED AT...

WWW.NWS.NOAA.GOV/SURVEY/NWS-SURVEY.PHP?CODE=ETWO

$$
FORECASTER SULLIVAN
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Quoting 379. HurriHistory:
The 2:PM is late. What's going on?


Restroom break, perhaps?
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383. IKE
Stewart testing WU bloggers. Xanax needed.
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Quoting 349. Patrap:

Quoting 350. mobhurricane2011:
yeah I have witnessed that chaos here, lol. I know it's all good and I do enjoy the blog. Just not the ones who are purposely posting false info. I ignore them then they just keep coming. Oh well


I didn't use my ignore button for the longest time.....I give people the benefit of the doubt......but it is somewhat tiresome and now have about 30 names on it......probably the same 2-4 people with different names....the trolls should put as much energy into their life as they do trying to interrupt this blog. Like I said it's all good though. Just wade through the muck and you will notice who the folks are that make it the best tropical weather blog on the internet.
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Quoting 372. daddyjames:


In regards to lat, not long


I don't think so. I would have agreed with that last night when all the convection was there, but now the LLC seems to have firmly relocated further to the SW. As Dr. Masters pointed out, the convection to the north is showing some outflow boundaries as it weakens and I would guess that anything in that area is going to just fall in line with the LLC at around 14.3N, 63.3W.
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380. JRRP
nice SAT
Link
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The 2:PM is late. What's going on?
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378. IKE
Late :(
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Quoting 362. HurricaneHunterJoe:


Is that not a LARGE atmospheric envelope with 97L?


It sure looks like it. I could send you a link of all the other images on that site if you want.

Just click on the MTCWSA and you get other images.

Link
Member Since: April 24, 2011 Posts: 1 Comments: 601
Quoting 374. MiamiHurricanes09:
Looks like Stewart's writing essays back at the NHC. ;P


Might be WPC's monthly test one.
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375. Relix
Oh my... 97L is pulling off all stops :O
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Looks like Stewart's writing essays back at the NHC. ;P
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Quoting 360. daddyjames:


Does it appear that it is trying to reform - or collect itself - closer to Dominica, than to the south?


14.8N 62.8W
Member Since: October 28, 2006 Posts: 57 Comments: 30486
Quoting 360. daddyjames:


Does it appear that it is trying to reform - or collect itself - closer to Dominica, than to the south?


In regards to lat, not long
Member Since: June 25, 2011 Posts: 2 Comments: 3732
Quoting 367. GatorWX:
Has a bit of support from above.



-12 hrs



Notice the development in the last map.
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Quoting 354. hurricanes2018:
where is the 2pm update fom the national hurricane center

flipping a coin to see if they should pull out the orange crayon for 97L. lol It does look much better this afternoon...wonder if this little engine will make it
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Quoting 358. MiamiHurricanes09:
Outflow boundaries are very much evident in this image you posted. Convection may begin to dwindle, but this time, due to dry air instrusion rather than lack of surface convergence due to the absence of a well-defined circulation as was occurring a few days ago.

97L has organized very nicely this afternoon though.


I think the outflow boundaries may not be a reflection of the convection weakening across the whole system, but more of a reflection of the weakening of that convection that we were tracking last night as it moved over Martinique/Dominica. Convection seems healthier south of there. Just my take though.
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Member Since: July 3, 2005 Posts: 423 Comments: 128231
Has a bit of support from above.

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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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