Dr. Jeff Masters' WunderBlog

Western Caribbean disturbance moving over the Yucatan
Posted by: Dr. Jeff Masters, 02:01 PM GMT on Οκτώβριος 04, 2008 +1
Heavy thunderstorm activity in association with a broad area of low pressure over the Western Caribbean remains disorganized today. Visible satellite loops show a modest area of heavy thunderstorms, with no sign of organization or a surface circulation. This morning's QuikSCAT pass showed no signs of a surface circulation, either. Wind shear is moderate, in the 10-15 knot range.


Figure 1. Current satellite image of the Western Caribbean. Image credit: NOAA.

The disturbance is drifting westward, and should move over northern Guatemala, Belize, and Mexico's Yucatan Peninsula today before it can develop into a tropical depression. These areas can expect heavy rains of 2-4 inches today through Sunday from the disturbance. NHC is currently giving it a low (<20% chance) of developing into a tropical depression.

Elsewhere in the tropics, the NOGAPS model is forecasting the possible formation of a tropical depression off the coast of Nicaragua on Thursday, while the GFS model thinks something might develop off the coast of Africa Thursday. It's a little late to be getting an African storms developing, so I doubt the GFS forecast. However, we'll need to watch the Western Caribbean over the coming week.

Links to follow
Wundermap for the Western Caribbean


Hurricane Ike relief efforts
When a major hurricane hits, relief efforts are always confused and don't reach many areas with great needs. Thus, a group of wunderground bloggers mobilized the day after Ike hit to help out. Their goal was to provide immediate help where traditional aid efforts were coming short, with a focus on providing equipment for people with disabilities and a full spectrum of relief supplies to smaller communities often neglected. Traditional, professional relief efforts are weighed down by bureaucracy and cannot respond as nimbly as smaller, grass-roots relief efforts can. I believe our dollars have been well-spent by the relief effort organized by our own Patrap, Presslord, and Stormjunkie, under the banner of Portlight Strategies, Inc. I encourage you to donate to the cause, or the traditional charity organization of your choice.

Here's a breakdown of how much money has been donated, and how much spent. Figures are rounded to the nearest $100. More details can be found on StormJunkie's blog:

Total money donated: $31,200 (about 400 donors)
Total money spent so far: $10,350
Total money in the portlight.org checking account: $21,000
--$9,000 in escrow for legal defense
--$12,000 available for immediate relief operations
Total money in the original Paypal account set up by Patrap: $1000
Total money in the new Paypal account set up by Presslord: $250

Here's how the $10350 has been spent:

WalMart - $2000 - supplies
Costco - $1000 - supplies
Patrick Pearson (Patrap) - $1000 (fuel, rental costs for a truck)
Truck from Charleston - $1500 - fuel
Florida supply truck - $2100 - escort, credentialing, fuel, vehicle repair, lodging
Crew food,lodging, transport home - $1000
Truck rental, gas for truck from Atlanta - $1750

The biggest coup for the effort came when portlight arranged to get about $150,000 worth of medical equipment donated to the cause. Rob Ingham (AKA Rainman32) and Roger Knight (AKA NLimbo) took a rented truck to Atlanta, grabbed the gear, and delivered it to Houston. In the shipment:

Four Gaylord boxes medical supplies
-Soft casts
-various catheter kits
-catheter bags
-oxygen tubing kits
-other misc. medical supplies
13 hospital bed mattresses and pressure pads
2 Gaylord boxes of sanitized walkers (20 per box)
4 Gaylord boxes of unsanitized walkers (20 per box)
2 pallets with two electric wheelchairs each (4)
100 pairs of crutches
30 bedside commodes sanitized
6 gerry chairs

Jeff Masters
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51. futuremet 03:59 PM GMT on Οκτώβριος 04, 2008    
Quoting KeyWestMan:
Given the right conditions at the right time can certainly give us one last major cane Drak before the season concludes, couldn't it? I mean CSU is expecting just that.


Indeed, it is possible that will have another major hurricane this season. Anticyclones are building in the Atlantic basin as a result of the increasing MJO pulses. These high pressure systems will provide a more favorable environment for tropical cyclone genesis, by enhancing lower level convergence.
Member Since: Ιούλιος 19, 2008 Posts: 43 Comments: 4049
53. futuremet 04:11 PM GMT on Οκτώβριος 04, 2008    
Quoting KeyWestMan:


Yes sir, the Basin is presently a rapidly ticking time bomb getting ready to go off at anytime now. Particularily once the very potent MJO in the E-Pac makes it to our lovable-side of the world.


There is no need to call me "Sir" Keywestman, I am a weather enthusiast teenager in high school. =)
Member Since: Ιούλιος 19, 2008 Posts: 43 Comments: 4049
54. presslord 04:11 PM GMT on Οκτώβριος 04, 2008    
rest assured, we are working to expedite the necessary clearances to free these escrowed funds expeditiously so that they can soon be expended toward our ongoing efforts....

www.portlight.org
Member Since: Αύγουστος 13, 2007 Posts: 0 Comments: 10377
55. sporteguy03 04:12 PM GMT on Οκτώβριος 04, 2008    
Quoting presslord:
going dress shopping this afternoon.....


Enjoy your trip! Some good sales at Old Navy, lol.
Member Since: Ιούλιος 7, 2005 Posts: 0 Comments: 4824
56. SWFLDigTek 04:15 PM GMT on Οκτώβριος 04, 2008    
Quoting sporteguy03:


Enjoy your trip! Some good sales at Old Navy, lol.


No no no...
Some pink and black laytex clubwear, you know, something Madonna would be proud of...
Member Since: Αύγουστος 31, 2008 Posts: 117 Comments: 398
58. futuremet 04:19 PM GMT on Οκτώβριος 04, 2008    
I do not expect any development from that tropical wave adjacent to the upper level low near Dominican Republic.
Member Since: Ιούλιος 19, 2008 Posts: 43 Comments: 4049
59. futuremet 04:20 PM GMT on Οκτώβριος 04, 2008    
slow day in the blog.

I'll leave

I'll be back later.
Member Since: Ιούλιος 19, 2008 Posts: 43 Comments: 4049
60. SWFLDigTek 04:22 PM GMT on Οκτώβριος 04, 2008    
Quoting futuremet:
slow day in the blog.

I'll leave

I'll be back later.


So we can talk about you again then?
=>
Seems there is a closed low in the EPAC...
Member Since: Αύγουστος 31, 2008 Posts: 117 Comments: 398
61. cchsweatherman 04:24 PM GMT on Οκτώβριος 04, 2008    
Quoting futuremet:
I do not expect any development from that tropical wave adjacent to the upper level low near Dominican Republic.


Quite unusual to see twin upper level lows moving in tandem towards the same direction and same speed. Until these the twins either disintegrate or leave the picture, there won't be any tropical development close to home.
Member Since: Απρίλιος 14, 2007 Posts: 8 Comments: 4926
62. Dar9598 04:24 PM GMT on Οκτώβριος 04, 2008    
IT IS NOT UNCOMMON TO HAVE A STORM IN THE COAST OF AFRICA
63. Cotillion 04:27 PM GMT on Οκτώβριος 04, 2008    
Hey everyone.

We're currently having Laura lashing us, quite strong winds and absolutely bucketing it down. Because we reaaaaally needed more rains. The conditions have deteriorated especially in the last couple of hours.

Met Office have changed their tune somewhat and have upgraded their advisories to 'orange'. Lancashire (Where I currently am) and Cheshire are currently getting the worst of it.


Member Since: Αύγουστος 23, 2008 Posts: 7 Comments: 5300
65. Drakoen 04:31 PM GMT on Οκτώβριος 04, 2008    
GFS 12z continues to show a cyclone developing in the Central Atlantic by mid next week. Enjoy the lull while it lasts...
Member Since: Οκτώβριος 28, 2006 Posts: 57 Comments: 29010
66. hurricanemaniac123 04:31 PM GMT on Οκτώβριος 04, 2008    
Things are picking up in the e. pacific. Now, is the w. caribbean disturbance moving inland? Is it falling apart?
Member Since: Σεπτέμβριος 21, 2008 Posts: 9 Comments: 688
67. seflagamma 04:33 PM GMT on Οκτώβριος 04, 2008    
less we forget: October/November storms
Last 20 years of landfalling TC's that hit CONUS and their landfall winds.

2005:

Hurricane Wilma 10/15-10/26 Category 3 Hurricane (South Florida)--- most intense storm in history while in the Caribbean before landfall.

1999:
Hurricane Irene 10/12-10/19 Category 1 Hurricane (South Florida)

1996:
Tropical Storm Josephine 10/04-10/16 Tropical Storm Fla Panhandle)

1995:
Hurricane Opal 09/27-10/06 Category 3 Hurricane (Alabama, Florida state line)

1994:
Hurricane Gordon 11/08-11/21 Tropical Storm (all over Florida similar to this year's Fay)

1990:
Tropical Storm Marco 10/09-10/13 Tropical Storm (Big Bend Fla)


1989:
Hurricane Jerry 10/12-10/16 Category 1 Hurricane (so much for shutting door for Texas landfalls in October)

1988:
Tropical Storm Keith 11/17-11/26 Tropical Storm (West Florida Tampa area)

1987:
Hurricane Floyd 10/09-10/14 Category 1 Hurricane (South Fla)

yes, Florida is most in danger in Oct and Nov and usually coming in thru Gulf.

Member Since: Αύγουστος 29, 2005 Posts: 286 Comments: 40485
68. SWFLDigTek 04:33 PM GMT on Οκτώβριος 04, 2008    
Quoting hurricanemaniac123:
Things are picking up in the e. pacific. Now, is the w. caribbean disturbance moving inland? Is it falling apart?


If it does move much to the North or West SHEAR will surely do it in.
Member Since: Αύγουστος 31, 2008 Posts: 117 Comments: 398
70. SWFLDigTek 04:42 PM GMT on Οκτώβριος 04, 2008    
Dead in here...
Guess I will head to Lowe's and then clean the fish tanks before the wife pecks my eyes out...
Later.
Member Since: Αύγουστος 31, 2008 Posts: 117 Comments: 398
71. charlottefl 04:43 PM GMT on Οκτώβριος 04, 2008    
Strong High pressure is taking over here in SWFL. My barometer is reading 1016.8. Highest I've seen all season. That combined with the approaching MJO pulse, and decreasing wind shear, I think the tropics may give us one last run of activity within the next two weeks before slowing down. Whether anything affects land, well that's a different story.
Member Since: Δεκέμβριος 18, 2006 Posts: 7 Comments: 2672
72. futuremet 04:45 PM GMT on Οκτώβριος 04, 2008    
Member Since: Ιούλιος 19, 2008 Posts: 43 Comments: 4049
74. cchsweatherman 04:53 PM GMT on Οκτώβριος 04, 2008    
Member Since: Απρίλιος 14, 2007 Posts: 8 Comments: 4926
75. Orcasystems 04:54 PM GMT on Οκτώβριος 04, 2008    
Quoting KeyWestMan:


Hey, at least it takes that biblical carnage that it creates out to sea FutureMet.

Biblical Carnage?
A little overstated maybe?
Member Since: Οκτώβριος 1, 2007 Posts: 77 Comments: 26077
76. BahaHurican 04:54 PM GMT on Οκτώβριος 04, 2008    
Afternoon, all. The weather has been a teaser here since Wed. The mornings look promising, but by noon or shortly thereafter everything deteriorates. Looks like the sun is gone again for the day . . . makes it hard on a town prowler that prowls at night, since it's been rainy both Thurs and Fri evening and looks like it will be rainy again tonight . .

[sigh]

Tropical development next weekend wouldn't surprise me. I think we've still got a few more storms to go, though exactly what they'll be like still stymies me.

More later!
Member Since: Οκτώβριος 25, 2005 Posts: 19 Comments: 17661
77. hurricanemaniac123 04:54 PM GMT on Οκτώβριος 04, 2008    
67. seflagamma

You forgot some:

2005

Tropical Storm Tammy

2004

Tropical Storm Matthew

2002

Hurricane Lili (made landfall in october)

1998

Hurricane Mitch

1991

Tropical Storm Fabian
Unnamed Hurricane

Member Since: Σεπτέμβριος 21, 2008 Posts: 9 Comments: 688
78. Orcasystems 05:01 PM GMT on Οκτώβριος 04, 2008    
Because its dead in here right now. I will ask a sort of none weather related question (attempt at the weather spin to follow).

I am planning (SWMBO'ed decreed)a vacation December 05/08.

I though of the following resorts around Cancun (SWMBO'ed, gave me the list and said pick one)

Moon Palace Golf and Spa Puerto morelos
Excellence Riviera Cancun
Ceiba del mar spa

Anyone know anything about any of them?
(Weather Spin) What kind of weather should I expect at that time of year.
Member Since: Οκτώβριος 1, 2007 Posts: 77 Comments: 26077
79. hurricane23 05:01 PM GMT on Οκτώβριος 04, 2008    
Quoting Drakoen:
GFS 12z continues to show a cyclone developing in the Central Atlantic by mid next week. Enjoy the lull while it lasts...


Ah drak dont bite just yet the GFS has been doing this since early may on its 10-14 day range.The atlantic is dominated by ULL's right now.I agree with Dr.Masters and find any development out in the eastern tropical atlantic highly suspect.

WATCH THIS
Member Since: Μάιος 14, 2006 Posts: 8 Comments: 13276
80. surfmom 05:03 PM GMT on Οκτώβριος 04, 2008    
Presslord - you know how I feel about the dress.....The enhancements might distract.....but ahhhh what are you doing about the body hair.....like your moustache for starters?????? and then the rest of YOU??????
Member Since: Ιούλιος 18, 2007 Posts: 30 Comments: 26538
81. futuremet 05:03 PM GMT on Οκτώβριος 04, 2008    
Quoting KeyWestMan:


Hey, at least it takes that biblical carnage that it creates out to sea FutureMet.


I do not really trust long range models, the long range forecasts fluctuates too much to be taken seriously. In about 360 hours (15 day) from now, the GFS forecast something to hit the Florida west coast. On the next run, it might drop the system, or forecast it to hit Louisiana. Any forecast beyond 190 hours is highly inaccurate.
Member Since: Ιούλιος 19, 2008 Posts: 43 Comments: 4049
82. surfmom 05:04 PM GMT on Οκτώβριος 04, 2008    
Orca - I'm in here now -- it ain't dead NO MORE, anybody think that puff in YUC channel is going to provide a little swell for my fancy????
Member Since: Ιούλιος 18, 2007 Posts: 30 Comments: 26538
83. Orcasystems 05:04 PM GMT on Οκτώβριος 04, 2008    
Quoting surfmom:
Presslord - you know how I feel about the dress.....The enhancements might distract.....but ahhhh what are you doing about the body hair.....like your moustache for starters?????? and then the rest of YOU??????


Ohhh bad mental image :((
Member Since: Οκτώβριος 1, 2007 Posts: 77 Comments: 26077
84. tkeith 05:05 PM GMT on Οκτώβριος 04, 2008    
Quoting surfmom:
Presslord - you know how I feel about the dress.....The enhancements might distract.....but ahhhh what are you doing about the body hair.....like your moustache for starters?????? and then the rest of YOU??????
I hope this crowd is ready for this ...lol
Member Since: Νοέμβριος 1, 2004 Posts: 25 Comments: 8839
85. BahaHurican 05:06 PM GMT on Οκτώβριος 04, 2008    
On Hurricane Ike relief efforts, we took up a collection at work, and I've seen a number of donation boxes in the various government offices and at some banks for the Inagua relief effort. I also know of at least two different events held by local Haitians (both Haitian-Bahamians and expat Haitians) in an effort to raise relief funds for the recent storm damage there. None of this is tied to government efforts.
Member Since: Οκτώβριος 25, 2005 Posts: 19 Comments: 17661
86. hurricane23 05:07 PM GMT on Οκτώβριος 04, 2008    
If have of what the GFS came true the eastern seaboard would probably seize to exist.

You best bet is looking close to home and even that is not looking to ideal and the present time.
Member Since: Μάιος 14, 2006 Posts: 8 Comments: 13276
87. surfmom 05:08 PM GMT on Οκτώβριος 04, 2008    
ahhhh, I see everyone woke-up, OK PressLord, we are waiting for your answer -- this could increase biding rates you know......
Member Since: Ιούλιος 18, 2007 Posts: 30 Comments: 26538
88. cchsweatherman 05:09 PM GMT on Οκτώβριος 04, 2008    
Photobucket
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89. GoodOleBudSir 05:10 PM GMT on Οκτώβριος 04, 2008    
Good morning. Finally back to normal in here. Dresses and the tropics. LOL :)
Member Since: Ιούλιος 30, 2008 Posts: 0 Comments: 261
90. surfmom 05:11 PM GMT on Οκτώβριος 04, 2008    
I have other fund raising ideas.......but I might lose the Halo I worked so hard for all week......
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91. hurricane23 05:12 PM GMT on Οκτώβριος 04, 2008    
.
Member Since: Μάιος 14, 2006 Posts: 8 Comments: 13276
92. GoodOleBudSir 05:12 PM GMT on Οκτώβριος 04, 2008    
CCHS,
That ULL looks like it is making a bee line towards the carribean disturbance. Could it catch up to it and tear it apart?
Member Since: Ιούλιος 30, 2008 Posts: 0 Comments: 261
93. hurricane23 05:13 PM GMT on Οκτώβριος 04, 2008    
Any forcast beyond 84hrs has a 50/50 shot at being inaccurate.Beyond that its all just for fun in my view.20 years ago, when the longest forecast maps were about 120 hrs (if not just 96 hrs), one still knew that once you got to and past 84 hours, anything could be wrong. Today, even though the computers can extrapolate these forecasts out to 16 days; the reliability of anything four days out and more is not very good.
Member Since: Μάιος 14, 2006 Posts: 8 Comments: 13276
94. futuremet 05:13 PM GMT on Οκτώβριος 04, 2008    
The tropical Atlantic season will ultimate come to an end. However, the rest of the world will still have tropical cyclones.

I will eventually post Global tropical analysis on my website
Member Since: Ιούλιος 19, 2008 Posts: 43 Comments: 4049
96. surfmom 05:14 PM GMT on Οκτώβριος 04, 2008    
71charlotteFL - I noticed that pressure as well - all we want is something minor, but big enough to rock the buoys one last time b/4 the coldfronts come & wetsuits become a necessity --I really love surfing with no rubber covering me up
Member Since: Ιούλιος 18, 2007 Posts: 30 Comments: 26538
97. cchsweatherman 05:14 PM GMT on Οκτώβριος 04, 2008    
Quoting GoodOleBudSir:
CCHS,
That ULL looks like it is making a bee line towards the carribean disturbance. Could it catch up to it and tear it apart?


We won't need the ULL to catch the disturbance to tear it apart; the Yucatan Peninsula and deep-layered trough over the Gulf of Mexico will do the job quite well.
Member Since: Απρίλιος 14, 2007 Posts: 8 Comments: 4926
98. futuremet 05:15 PM GMT on Οκτώβριος 04, 2008    
Quoting hurricane23:
futuremet 1:03 PM EDT on October 04, 2008
Quoting KeyWestMan:


Hey, at least it takes that biblical carnage that it creates out to sea FutureMet.


I do not really trust long range models, the long range forecasts fluctuates too much to be taken seriously. In about 360 hours (15 day) from now, the GFS forecast something to hit the Florida west coast. On the next run, it might drop the system, or forecast it to hit Louisiana. Any forecast beyond 190 hours is highly inaccurate.

Any forcast beyond 84hrs has a 50/50 shot at being inaccurate.Beyond that its all just for fun in my view.20 years ago, when the longest forecast maps were about 120 hrs (if not just 96 hrs), one still knew that once you got to and past 84 hours, anything could be wrong. Today, even though the computers can extrapolate these forecasts out to 16 days; the reliability of anything four days out and more is not very good.


Wow, you must be a veteran hurricane23.

How did the GFS perform 20 years ago compare to now?
Member Since: Ιούλιος 19, 2008 Posts: 43 Comments: 4049
99. GoodOleBudSir 05:15 PM GMT on Οκτώβριος 04, 2008    
Quoting cchsweatherman:


We won't need the ULL to catch the disturbance to tear it apart; the Yucatan Peninsula and deep-layered trough over the Gulf of Mexico will do the job quite well.


Gotcha! Thanks
Member Since: Ιούλιος 30, 2008 Posts: 0 Comments: 261
101. hurricane23 05:18 PM GMT on Οκτώβριος 04, 2008    
Quoting KeyWestMan:
So, in your personal professional opinion then Hurricane23, the season is good as done-for right now?


No not at all iam just basically stating the fact i find the GFS output highly suspect on anything developing of the african coast.I still think this season has about 2-3 named storms left in it.
Member Since: Μάιος 14, 2006 Posts: 8 Comments: 13276

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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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