Dr. Jeff Masters' WunderBlog

A Tale of Two Invests
Posted by: Dr. Jeff Masters, 12:17 PM GMT on July 04, 2010 +2
Good morning, everybody, Dr. Rob Carver filling in for Jeff on Independence Day.

Currently, NHC is monitoring two different areas for possible tropical cyclone development. Invest 95L is about 125 miles west-southwest of the mouth of the Mississippi and it doesn't have much thunderstorm activity associated with it. Dry air from the north and strong wind shear have weakened it considerably from yesterday, and NHC believes it has a 10% chance of becoming a tropical cyclone before the feature makes landfall.

Invest 96L is in the western Caribbean sea and bears watching closely. Earlier in the morning, the convection was all on the east side of the circulation center, but thunderstorms have developed on the southwest side. According to the CIMMS wind shear analysis, 96L is on the outskirts of a low wind shear region just east of the Yucatan peninsula. It's also over warm SST's (>29 deg C), so it could intensify. NHC gives it a 20% chance of becoming a tropical cyclone in the next 48 hours. Computer models have 96L going through the Yucatan Channel then turning left and making landfall somewhere near the Rio Grande.


Fig. 1 IR satellite composite from 720AM EDT.

Next Update
My next post will be sometime Monday afternoon/evening. If the situation changes significantly before then, I'll make a new post. In any event, enjoy the holidays...
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3501. IKE 1:20 PM GMT on July 05, 2010    
21.1N and 85.7W is at the Yucatan channel...WTH?
Member Since: June 9, 2005 Posts: 23 Comments: 37044
3502. nrtiwlnvragn 1:21 PM GMT on July 05, 2010    
Don't get it, how they got these coordinates:

AL 96 2010070512 BEST 0 211N 857W 25 1009 DB


With this data as input:

AL 96 201007051145 DVTS 1740N 8290W SAB 1010 ///// DT=1.5 BO CBND MET=1.0 PT=1.0 FTBO DT PA=50 NMI
AL 96 201007051145 DVTS 1810N 8320W TAFB 1015 ///// DT = 1.0 BASED ON 0.2 BANDING. NLINEMET= 1.0 PAT=
AL 96 201007051200 ANAL 1775N 8365W CIRA 201007050025
Member Since: September 23, 2005 Posts: 11 Comments: 8930
3503. cccidojr1 1:21 PM GMT on July 05, 2010    
any chance of 96 coming to my hometown? im in corpus christi..
Member Since: September 10, 2009 Posts: 0 Comments: 14
3504. Tropicsweatherpr 1:22 PM GMT on July 05, 2010    
Quoting IKE:


What were the stats 6 hours ago?


That is a big relocation. At 06z it was at 17.3N-83.3W.
Member Since: April 29, 2009 Posts: 64 Comments: 8174
3505. Dakster 1:23 PM GMT on July 05, 2010    
IKE,

I agree I don't see a center there either...
Member Since: March 10, 2006 Posts: 0 Comments: 4937
3506. nrtiwlnvragn 1:24 PM GMT on July 05, 2010    
Quoting IKE:


What were the stats 6 hours ago?


Originally LATCUR = 17.3N LONCUR = 83.3W

Now

AL 96 2010070506 BEST 0 205N 853W 25 1010 DB
AL 96 2010070512 BEST 0 211N 857W 25 1009 DB
Member Since: September 23, 2005 Posts: 11 Comments: 8930
3507. lickitysplit 1:25 PM GMT on July 05, 2010    
I'm giving 95L a 5% chance and 96L a 15% chance. The blobs further out? 1% chance. Given all the hype on this season, I'm surprised how slowly its starting.
Member Since: May 17, 2007 Posts: 0 Comments: 621
3508. nrtiwlnvragn 1:26 PM GMT on July 05, 2010    
Here is a GHCC Loop centered on the new coordinates. Now it is in Rapid Scan Mode, but I don't see it.
Member Since: September 23, 2005 Posts: 11 Comments: 8930
3509. IKE 1:30 PM GMT on July 05, 2010    
Looks like the moisture from 96L is getting drawn/pulled/moving NNW, but at 21.1N and 85.7W is very little.
Member Since: June 9, 2005 Posts: 23 Comments: 37044
3510. cctxshirl 1:31 PM GMT on July 05, 2010    
Quoting cccidojr1:
any chance of 96 coming to my hometown? im in corpus christi..

God, let's hope not. Maybe it'll fizzle out.
Member Since: July 15, 2005 Posts: 25 Comments: 316
3511. nrtiwlnvragn 1:32 PM GMT on July 05, 2010    
Quoting IKE:
Looks like the moisture from 96L is getting drawn/pulled/moving NNW, but at 21.1N and 85.7W is very little.


Maybe that Yucatan bouy plunge lastnight was legit and they are tracking the area of lowest pressure.
Member Since: September 23, 2005 Posts: 11 Comments: 8930
3512. IKE 1:34 PM GMT on July 05, 2010    
95L looks like a raccoon with 2 eyes bugging out. 96L looks like a 40% chance needs reducing to about 20%....

Member Since: June 9, 2005 Posts: 23 Comments: 37044
3513. 954FtLCane 1:36 PM GMT on July 05, 2010    
Is there a 97L n of the leewards yet?....
Member Since: September 30, 2008 Posts: 0 Comments: 1464
3514. Kristina40 1:37 PM GMT on July 05, 2010    
Hahaha Ike, but the little bugger still ain't dead yet...
Member Since: June 27, 2010 Posts: 0 Comments: 681
3515. earthlydragonfly 1:38 PM GMT on July 05, 2010    
I think the center of 96L is moving and will probably end up close to the channel. Seems there is convection firing up there and the L will probably reform under it..

Just my thought.
Member Since: July 1, 2005 Posts: 10 Comments: 1649
3516. atmoaggie 1:39 PM GMT on July 05, 2010    
Quoting nrtiwlnvragn:


Maybe that Yucatan bouy plunge lastnight was legit and they are tracking the area of lowest pressure.
Still dunno. Did come back to an expected pressure. This almost looks like an eye passed very close or directly over.



But leaning towards "that ain't right"...
Member Since: August 16, 2007 Posts: 6 Comments: 12461
3517. IKE 1:40 PM GMT on July 05, 2010    
Quoting Kristina40:
Hahaha Ike, but the little bugger still ain't dead yet...


LOL...true...a survivor.
Member Since: June 9, 2005 Posts: 23 Comments: 37044
3518. nrtiwlnvragn 1:40 PM GMT on July 05, 2010    
Cancun did see lower pressure this morning.

Latest 8 AM (12) Jul 05 80 (27) 77 (25) 29.84 (1010) Calm
7 AM (11) Jul 05 77 (25) 73 (23) 29.82 (1009) Calm
6 AM (10) Jul 05 77 (25) 73 (23) 29.82 (1009) Calm
5 AM (9) No Data
4 AM (8) Jul 05 77 (25) 73 (23) 29.83 (1010) Calm
3 AM (7) Jul 05 77 (25) 75 (24) 29.85 (1010) Calm
Member Since: September 23, 2005 Posts: 11 Comments: 8930
3519. TampaSpin 1:41 PM GMT on July 05, 2010    
Almost closed but, still open to the NE it appears!

Member Since: September 2, 2007 Posts: 175 Comments: 19747
3520. nrtiwlnvragn 1:42 PM GMT on July 05, 2010    
Quoting atmoaggie:
Still dunno. Did come back to an expected pressure. This almost looks like an eye passed close.



But leaning towards "that ain't right"...


Wind at that bouy is now out of the south which would make sense with a system moving over it towards the NW/NNW.
Member Since: September 23, 2005 Posts: 11 Comments: 8930
3521. sarahjola 1:42 PM GMT on July 05, 2010    
do you all think recon will be canceled? they are supposed to leave at 1:30. that is what someone said last night. does anyone think that 96l is going to get some convection later today? why has 96l not blown up into a depression yet? are the conditions not favorable? if not, could you explain why,and if conditions are expected to change? thanks in advance.:)
Member Since: September 10, 2008 Posts: 0 Comments: 1291
3522. Orcasystems 1:43 PM GMT on July 05, 2010    
Member Since: October 1, 2007 Posts: 77 Comments: 26077
3523. msgambler 1:44 PM GMT on July 05, 2010    
Quoting sarahjola:
do you all think recon will be canceled? they are supposed to leave at 1:30. that is what someone said last night. does anyone think that 96l is going to get some convection later today? why has 96l not blown up into a depression yet? are the conditions not favorable? if not, could you explain why,and if conditions are expected to change? thanks in advance.:)
Morning Sarah, Someone posted earlier that recon has already been nix. Not sure who though.
Member Since: February 27, 2010 Posts: 0 Comments: 1120
3524. largeeyes 1:45 PM GMT on July 05, 2010    
Recon was already canceled.
Member Since: August 22, 2006 Posts: 0 Comments: 1381
3525. aquak9 1:46 PM GMT on July 05, 2010    
g'morning WU-Bloggers worldwide.

Pleased to see what a mess 96L is this morning. A little dry air, a little shear, competing areas of low pressure...doesn't take much to make me happy.

Let me enjoy my little nirvana for a while, ok?
Member Since: August 13, 2005 Posts: 163 Comments: 25007
3526. TampaSpin 1:47 PM GMT on July 05, 2010    
Another View from 25k



Member Since: September 2, 2007 Posts: 175 Comments: 19747
3527. msgambler 1:47 PM GMT on July 05, 2010    
good morning water dog
Member Since: February 27, 2010 Posts: 0 Comments: 1120
3528. belizeit 1:49 PM GMT on July 05, 2010    
I still see the storm on the cost of Honduras on the visible its right under that big blob of convection just like last night . That is why the system became last organized because it moved towards the SW last night and felt the land interaction
Member Since: January 10, 2010 Posts: 0 Comments: 790
3529. Kristina40 1:49 PM GMT on July 05, 2010    
Yep Ike, I kind of have a soft spot for the little guy as I watched him being spawned over my head.
Member Since: June 27, 2010 Posts: 0 Comments: 681
3530. LightningCharmer 1:51 PM GMT on July 05, 2010    
3516This almost looks like an eye passed very close or directly over...

Mentioning an "eye" ought to still the blog a bit...LOL

An interesting observation though.
Member Since: September 1, 2007 Posts: 0 Comments: 1111
3531. HurricaneSwirl 1:51 PM GMT on July 05, 2010    
Quoting belizeit:
I still see the storm on the cost of Honduras on the visible its right under that big blob of convection just like last night . That is why the system became last organized because it moved towards the SW last night and felt the land interaction


No, the COC is far to the north of the convection on the coast of Honduras. Land interaction isn't what happened.
Member Since: July 7, 2008 Posts: 2 Comments: 3237
3532. IKE 1:52 PM GMT on July 05, 2010    
BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
1015 UTC...

...SPECIAL FEATURE...

AT 0900 UTC...A TROPICAL WAVE IS ANALYZED OVER THE W CARIBBEAN
ALONG 83W/84W FROM CUBA W OF THE CAYMAN ISLANDS TO W PANAMA
MOVING NW NEAR 15 KT. CLUSTERS OF SCATTERED MODERATE/STRONG
CONVECTION ARE FROM 14N-22N BETWEEN 78W-86W WITH SCATTERED
SHOWERS/ISOLATED THUNDERSTORMS S OF 14N TO INLAND OVER PANAMA
AND COSTA RICA W OF 76W TO THE COAST OF NICARAGUA. WHILE THE
WAVE HAS BECOME LESS ORGANIZED OVERNIGHT...CONDITIONS STILL
REMAIN CONDUCIVE FOR SOME POTENTIAL DEVELOPMENT. REGARDLESS OF
DEVELOPMENT...LOCALLY HEAVY RAINFALL AND GUSTY WINDS ARE
POSSIBLE OVER THE CAYMAN ISLANDS...YUCATAN PENINSULA...AND WRN
CUBA OVER THE NEXT DAY OR TWO.
Member Since: June 9, 2005 Posts: 23 Comments: 37044
3533. aquak9 1:54 PM GMT on July 05, 2010    
hiya gambler. Loved the way Ike said 95L looked like a little raccoon. They can be smart little buggers, y'know?

A little further review- nothing really ramped up over night. Nothing looks better than yesterday. A'course, 95L's proximity to land has got to be throwing ya'll into a tizzy over there.
Member Since: August 13, 2005 Posts: 163 Comments: 25007
3534. guygee 1:56 PM GMT on July 05, 2010    
Looks like the 06Z HWRF was still trying to develop 96L. 06Z GFDL did nothing with 96L.
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3535. Kristina40 1:57 PM GMT on July 05, 2010    
Watching the loop for 95L he seems to be just sitting there trying to gain some strength. Poor little fella. Could have at least given him some kind of honorary name.
Member Since: June 27, 2010 Posts: 0 Comments: 681
3536. msgambler 1:57 PM GMT on July 05, 2010    
Just a little rain this morning Aqua. Starting to shine now and was able to check my skylight repair. NO HOLES
Member Since: February 27, 2010 Posts: 0 Comments: 1120
3537. belizeit 1:58 PM GMT on July 05, 2010    
Quoting HurricaneSwirl:


No, the COC is far to the north of the convection on the coast of Honduras. Land interaction isn't what happened.
We will wait a couple of hours and see what happens There are still not a lot of visible loops available to actually tell whats really going on
Member Since: January 10, 2010 Posts: 0 Comments: 790
3538. sarahjola 1:58 PM GMT on July 05, 2010    
so 96l must be dying. that is amazing how fast these invest fall apart. 96l looked like a depression last night, and this morning its a shell of what it was last night. just heard on the news that the oil is getting near the rigoletts, and maybe in a little bit. this is gonna be bad. i can see it will get into the lake. st. Bernard parish president said its getting into our bayous down there and that makes me sick to my stomach. best fishing in the world in those bayous. red fish(my favorite), trout, flounder, sheep head, drum. you can catch all these fish while watching the alligators relax and sun bathe.:( will the gators move inland to get away from the oil? i sure hope so. as much i as love the fishing, i love to watch the alligators. they are so beautiful, and awesome. prehistoric looking.
Member Since: September 10, 2008 Posts: 0 Comments: 1291
3539. kmanislander 1:59 PM GMT on July 05, 2010    
Quoting atmoaggie:
Still dunno. Did come back to an expected pressure. This almost looks like an eye passed very close or directly over.



But leaning towards "that ain't right"...


Good morning.

I am beginning to believe that no one really knows where the low is with 96L. I have seen coordinates that have literally been all over the map in the NW Caribbean. Either the low is jumping around or tracking it has been sporadic.
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3540. msgambler 2:00 PM GMT on July 05, 2010    
Sarah, I don't thik 96 is even close to dying
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3541. nrtiwlnvragn 2:02 PM GMT on July 05, 2010    
TAFB position tomorrow morning 8AM EDT



Member Since: September 23, 2005 Posts: 11 Comments: 8930
3542. Kristina40 2:02 PM GMT on July 05, 2010    
kman, I was thinking the same thing. I kept getting readings further North that were lower than what they were using. Then we have 95L just sitting out there when it looked like it was coming ashore last night. I guess every storm is going to have a mind of its own this year.
Member Since: June 27, 2010 Posts: 0 Comments: 681
3543. belizeit 2:02 PM GMT on July 05, 2010    
Quoting kmanislander:


Good morning.

I am beginning to believe that no one really knows where the low is with 96L. I have seen coordinates that have literally been all over the map in the NW Caribbean. Either the low is jumping around or tracking it has been sporadic.
I still believe its right under the convection and will stick to it till the crow comes onto my plate
Member Since: January 10, 2010 Posts: 0 Comments: 790
3544. kmanislander 2:03 PM GMT on July 05, 2010    
The CIMSS wind shear map is still messed up. It is time stamped for today but is showing yesterday morning's 850 vort map.
Member Since: August 19, 2006 Posts: 0 Comments: 14939
3545. IKE 2:03 PM GMT on July 05, 2010    
Member Since: June 9, 2005 Posts: 23 Comments: 37044
3546. aquak9 2:05 PM GMT on July 05, 2010    
skylight repair, gambler? that thing still givin' ya the headache? hope for sure ya got it fixed this time.

96L ain't dead by no means, sara. Just glad it looks pathetic this morning. Will take each morning like that with a smile.
Member Since: August 13, 2005 Posts: 163 Comments: 25007
3547. IKE 2:05 PM GMT on July 05, 2010    
Quoting nrtiwlnvragn:
TAFB position tomorrow morning 8AM EDT





That's a WNW movement from it's current position.
Member Since: June 9, 2005 Posts: 23 Comments: 37044
3548. AussieStorm 2:05 PM GMT on July 05, 2010    
Quoting sarahjola:
so 96l must be dying. that is amazing how fast these invest fall apart. 96l looked like a depression last night, and this morning its a shell of what it was last night. just heard on the news that the oil is getting near the rigoletts, and maybe in a little bit. this is gonna be bad. i can see it will get into the lake. st. Bernard parish president said its getting into our bayous down there and that makes me sick to my stomach. best fishing in the world in those bayous. red fish(my favorite), trout, flounder, sheep head, drum. you can catch all these fish while watching the alligators relax and sun bathe.:( will the gators move inland to get away from the oil? i sure hope so. as much i as love the fishing, i love to watch the alligators. they are so beautiful, and awesome. prehistoric looking.


BP oil spill 'increases arsenic in ocean' British scientists say


THE BP oil spill in the Gulf of Mexico is increasing the level of arsenic in the ocean, British scientists have revealed.

Imperial College London researchers published a study which found oil stops the oceans natural filtering process of arsenic.

The arsenic then gets magnified up the food chain, as fish eat small amounts of the deadly poison and may eventually impact humans, researchers said.

Professor Mark Sephton said arsenic, which is found in seawater, was normally filtered out of the ocean when it combined with sediment on the sea floor.

But oil spills stop the normal process because the oil combines with sediment and it leads to an accumulation of arsenic in the water over time," he said.

"Arsenic only needs to be a 10th of a part per billion to cause problems.

He added: Our study is a timely reminder that oil spills could create a toxic ticking time bomb, which could threaten the fabric of the marine ecosystem in the future.

Prof Sephton said comprehensive mapping of arsenic levels around the world was needed. The maps would allow authorities to consider banning oil drilling in areas with dangerous levels of arsenic.

The findings were published this month in the journal Water Research.

BPs Deepwater Horizon rig has been spilling between 35,000 and 60,000 barrels of crude oil into the Gulf of Mexico each day since it exploded on 22 April.
Member Since: September 30, 2007 Posts: 5 Comments: 13329
3549. TankHead93 2:05 PM GMT on July 05, 2010    
Quoting kmanislander:
The CIMSS wind shear map is still messed up. It is time stamped for today but is showing yesterday morning's 850 vort map.
I noticed that as well.
Member Since: August 12, 2009 Posts: 0 Comments: 203
3550. belizeit 2:06 PM GMT on July 05, 2010    
Quoting IKE:
I see a spin just north of Honduras and another one headed for the Isle of Youth.

At 21.1N and 85.7W I see no spin.
Thank You Ike at least you agree whith me
Member Since: January 10, 2010 Posts: 0 Comments: 790
3551. IKE 2:08 PM GMT on July 05, 2010    
Yes, it's the non-tropical NAM....but at 18hrs. on the 12Z run...where is 96L?

Member Since: June 9, 2005 Posts: 23 Comments: 37044

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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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