Tropical Depression Two Along South Texas Coast

By: Dr. Jeff Masters , 4:46 PM GMT on July 08, 2010

Share this Blog
4
+

Hello everybody, this is Senior Meteorologist Shaun Tanner writing Dr. Masters' blog while he is on vacation.

Tropical Depression Two formed overnight in the northern Bay of Campeche and is now making landfall along the extreme south coast of Texas. A hurricane hunter was sent into the system and found a low-level circulation. While there are some reports of tropical storm strength winds in the squalls of the system, there is just not enough evidence to upgrade the storm to tropical storm strength before landfall.

The satellite representation of the depression is quite impressive as half of the depression is now over landfall. Brownsville radar currently is showing the effects of the depression with heavy rain and thunderstorms through much of southern Texas.

The biggest lingering effect from the depression will be to prolong the devastating flooding that has been ongoing in southern Texas and northeast Mexico. Not including the rain that will fall due to the depression, over the past 7 days, the area near Houston has received over 10 inches of rain, while some inland areas of Texas has received over 4 inches of rain. The problem gets worse in the Mexican state of Coahuila near the Texas border has received upwards of 20 inches of rain in the past 7 days due to substantial moisture pouring into the area.

This surging watershed has caused massive flooding throughout the region, with the area near Laredo, Texas and Nuevo Laredo, Mexico being the hardest hit. The flooding has caused the major border crossing between those two cities to be closed as the Rio Grande surged and threatened to top the crossing's bridge. A contingent of Mexican officials, including the mayor of Piedras Negras, Coahuila, touring the flooding damage in an airplane crashed Wednesday, killing all six onboard. Evacuations on both sides of the border has forced tens of thousands of people out of their homes, while over 100,000 people were without water service. The flooding problem is extra dangerous because swollen dams had to release some of their water downstream into areas that towns that have already been swamped. It was even reported that one of these releases by the National Water Commission of Mexico was the largest emergency water release in the country.

Needless to say, the rain from Tropical Depression Two will only further the flooding problems in southern Texas and northeast Mexico. Figure 3 shows the severe map and the greens represent Flood Watches and Warnings. You can see almost the entire states of Texas and Oklahoma are under these watches and warnings in anticipation of several inches of rain from the remnants of Tropical Depression Two.


Figure 1. Satellite loop of Tropical Depression Two.


Figure 2. Storm-centered radar as depression makes landfall.


Figure 3. Severe map.

Reader Comments

Comments will take a few seconds to appear.

Post Your Comments

Please sign in to post comments.

or Join

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.

Display: 0, 50, 100, 200 Sort: Newest First - Order Posted

Viewing: 926 - 876

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 | 44Blog Index

We will likely not see another invest for another 48 hours. I do believe 97L will be found in the extreme southwestern Caribbean or just off the eastern seaboard.
Member Since: Posts: Comments:
Quoting jasoniscoolman2010x:
i see invest 97L coming soon.

mid atlantic?
Member Since: Posts: Comments:
Quoting jasoniscoolman2010x:
i see invest 97L coming soon.


Where?
Member Since: Posts: Comments:
Quoting jasoniscoolman2010x:
i see invest 97L coming soon.

Really? where?
Member Since: Posts: Comments:
Quoting will45:


Yes i agree but you are still gonna see them if someone quotes them

Yeah, and sometimes I show the people who don't show up on average and if they're saying something decent, I plus them. It's a pretty good system.
Member Since: Posts: Comments:
Quoting USSINS:



"...occurring at the surface where cyclogenesis occurs" is a very true statement. Why would do you say otherwise or have an issue with that statement? It does largely occur from the surface upwards, and yes, it does occur from higher up sometimes, and then finds the surface. And, clearly, there can be no true hurricane without a head/tail, top/bottom - it must have all of it, we all know that. So, my statement was not false by any interpretation.

Again, I never said you were wrong, but you jumped whole hog into my statement as being false. I'll be happy to find it and post for you. Give me a few minutes. Have to make a call first.

Again, no worries. BB in a bit.


I jumped at that very small part of your post, not the whole comment.

Your statement may get differing answers depending on how we define when cyclogenesis is occurring. If we look in hindsight at a tropical cyclone that already developed, track it down to the very first thunderstorm cluster, and then declare cyclogenesis at that point, then you may be correct in saying that.

However, the whole process of an established tropical disturbance organizing into a tropical cyclone happens at BOTH the low and mid levels of the atmosphere at the same time. That is unavoidable when you have deep convection warming the air column and causing pressure falls up through at least 700mb during development. They always have structure up into the mid-levels.

This is ESPECIALLY true when talking about tropical waves in the central-eastern Atlantic which are best-defined at 650mb, the mid-levels, and therefore cyclogenesis often starts up there first.
Member Since: November 24, 2005 Posts: 635 Comments: 26652
904: SSGaguy: Uhm, wouldn't they have to post a few hours first, before they get a negative rating? OR would you have them banned on the very first negative hit? Think about it. Please, think about it.

Member Since: Posts: Comments:
Looks like the GOM is going to a break for a while. Hoping the relief well gets done w/o any more tropical interruptions.
Member Since: Posts: Comments:
Louisiana, you show up on "show average" so you can't be that bad...!
Member Since: Posts: Comments:
Quoting Chicklit:
I just ban people who offend me and then put the control on "show average." Works for me.


Yes i agree but you are still gonna see them if someone quotes them
Member Since: Posts: Comments:
This is what I reckon.

I think that bloggers that have not been banned once over a 12 month period deserve the right to ban another person for 24 hours or more. This person that deserves the right to ban others has to be gone over thoroughly by Jeff Masters and/or Admin.
Member Since: Posts: Comments:
how do you find out your own rating?? just curious... I hope I'm not the one that everybody doesnt want in here lol
Member Since: Posts: Comments:
I just iggie people who offend me and then put the control on "show average." Works for me.
Member Since: Posts: Comments:
does anyone here know what that spin is over the yucatan? tia:)
Member Since: Posts: Comments:
Quoting StSimonsIslandGAGuy:
I think the best solution to the troll problem is automatically barring handles with below average ratings from posting in Dr. Master's blog.


That would work, but only if the low ratings were given by people with above-average ratings. Often a hate group of nasty people will hit the "minus" button on good posts by good bloggers just out of spite, and then we could end up with banned bloggers from the Dr's blog who shouldn't be banned.

So, auto-ban of people with below-average ratings given by above-average-rated bloggers would work I think.
Member Since: November 24, 2005 Posts: 635 Comments: 26652
Yeah, I'm all for civility in public discourse. Unless you've got to put someone in their place (according to your feelings), then I respect that but it can be done subtly...oh well. Will see if there is anything to the Florida Straits theory in the a.m. I'm more often wrong than right.
Member Since: Posts: Comments:
Quoting Levi32:


Yes well I had no problem with the meat of your post, and yeah I'd like to see that thing about dust enhancing development myself....sounds interesting.

Within the context of the entire post it may seem trivial, but the "....at the surface where cyclogenesis occurs..." made me want to jump in, because, whether you meant to say it that way or not, that statement isn't true. My point was that even if a system starts building from the surface up, the process of formation of the system is occurring at both the low and mid-levels at the same time, not just down at the surface.

Again, perhaps a little thing that you didn't really mean that way when you typed it, but it's all good. If you ever dig up that dust article on dust enhancing tropical formation, I'd like to see it.



"...occurring at the surface where cyclogenesis occurs" is a very true statement. Why would do you say otherwise or have an issue with that statement? It does largely occur from the surface upwards, and yes, it does occur from higher up sometimes, and then finds the surface. And, clearly, there can be no true hurricane without a head/tail, top/bottom - it must have all of it, we all know that. So, my statement was not false by any interpretation.

Again, I never said you were wrong, but you jumped whole hog into my statement as being false. I'll be happy to find it and post for you. Give me a few minutes. Have to make a call first.

Again, no worries. BB in a bit.
Member Since: Posts: Comments:
Well I know Louisiana has nothing to worry about through the end of next week since the HEATWAVE is moving our way!!!! HIGH Pressure = NO Tropical Systems...
Member Since: Posts: Comments:
Ignorance rearing it's ugly head. The dotted yellow lines when you click the front buttons. what do they mean?
Member Since: Posts: Comments:
Chicklet: Thank you, The world could use some civility.

Then goodnight to all. I must go prepare Gumbo and another drink or two.

Stay safe y'all.
Member Since: Posts: Comments:
Quoting aquak9:
yes yes, fair enough. I've had my rant.

Peace ya'll. Carry on.


creation of empty space completed.....
Member Since: Posts: Comments:
Regardless, MEM, I appreciate not only your manners but also your opinions. Although this is a blog and misspellings as well as rudeness are commonplace and expected, civility is appreciated!
Yes, the BPGOM is a blow out. In less polite circles it is classified as a cluster eff of Biblical proportions.
Member Since: Posts: Comments:
It also appears as though the Southern Caribbean AOI will have favorable conditions to develop. Although, it would also help to have the anticyclone directly over-top of the system.
Member Since: Posts: Comments:
I was skeptical, but I guess this stuff works:


Member Since: Posts: Comments:
Is there a site or chart that shows the number of storms that were during La Nina years only.
Member Since: Posts: Comments:

Even though this is less organized than 96L, I think it may have a shot.
Member Since: Posts: Comments:
874 Chicklet: I'm looking at it, but I haven't heard of any model support yet. That doesn't mean much though. If you think it has a shot, stick to your guns, you may be right.

I didn't think that little puff last week would amount to much at all. Yet we got 95L and nearly TD2 out of it. This is a season of surprises because of the higher SSTs unusual things can and will happen.

Did someone mention that the blob emerging off of South America had model support for development?

(...and Chicklet; a real Southern Gentleman would have served it to you instead of saying 'help your self'. However, in my defense I didn't know if you were in a drinking mood or not. I just didn't want to presume anything at all. In the future I'll ask if I can pour you one.)
Member Since: Posts: Comments:
Quoting USSINS:



I'm good if you are. I didn't have anything to prove. You are the one who said I was wrong. I never said you were wrong, except about my post. But, I can gladly post supporting information, make take me a few minutes. I never said cyclogenesis couldn't occur other than at the surface. We see mid-level stuff work its way down often, not as often as from the surface up; but, that was not the point of the post anyways. The point was that dry air and dust are two different things, and are often confused. And, that dust mostly resides in the mid-levels. All of that is easily verifiable. And as such, consequently, dry air would be more of an inhibitor at the surface than dust would be. I also indicated that dust could be an inhibiting factor for a growing storm, depending on concentrations. I will find the link for you that explains how dust is certain proportions/patterns is hypothesized to even be a contributor to devleopment. (Didn't believe that myself when I first read it.)

Anyways, it was a good post, a post that's been made several times through the years and referenced. If it made you think a bit, then I guess it was worth it and you may have learned something. I have learned from you and many others here. So, it's all good. Again, you're a smart fella. Stay that way! ;)


Yes well I had no problem with the meat of your post, and yeah I'd like to see that thing about dust enhancing development myself....sounds interesting.

Within the context of the entire post it may seem trivial, but the "....at the surface where cyclogenesis occurs..." made me want to jump in, because, whether you meant to say it that way or not, that statement isn't true. My point was that even if a system starts building from the surface up, the process of formation of the system is occurring at both the low and mid-levels at the same time, not just down at the surface, although of course tropical cyclones are strongest at the surface.

Again, perhaps a little thing that you didn't really mean that way when you typed it, but it's all good. If you ever dig up that dust article on dust enhancing tropical formation, I'd like to see it.
Member Since: November 24, 2005 Posts: 635 Comments: 26652
what about that spin over the Yucatan? it looks to be following in Alex and t.d.2's path. what is that, and that wave at 35w is pretty nice.:)
Member Since: Posts: Comments:
888. xcool
jfv banned,
Member Since: Posts: Comments:
Quoting AllStar17:


I'm a bit confused by the bolded part. Did you mean "pushed into Mexico rather than Texas though", or something else?
LOL! Take a look at the post again, I wrote it incorrectly.
Member Since: Posts: Comments:
Quoting FLdewey:
Adios CONUS... see you tomorrow as your next witty handle.


Where's Taz? We'll need him on spay duty tomorrow.
Member Since: Posts: Comments:
Greetings, all.
Another inch of rain here today, and the place is now officially mud!
Looks like this rainy season is trying to make-up for the last one.
Member Since: Posts: Comments:
Quoting MiamiHurricanes09:
Steering for the next 168 hours basically stays the same, pushing anything in the Caribbean into the Yucatan and subsequently into the GOM. In this case, a system forming in the Caribbean will be pushed into Mexico rather than Mexico though.


I'm a bit confused by the bolded part. Did you mean "pushed into Mexico rather than Texas though", or something else?
Member Since: Posts: Comments:
Quoting FLdewey:
Adios CONUS... see you tomorrow as your next witty handle.


I think he should come back as "tehchief"
Member Since: Posts: Comments:
Quoting bassis:
Question. Is that low off NC attached to a front

PS conus got banned, all his post got removed


No i dont think it is its just the outer banding that looks like it is

Link
Member Since: Posts: Comments:
Quoting AllStar17:


Possibly another Caribbean forming storm. We've had 3 so far, even though TD Two formed in the GOM, it initially developed in the Caribbean. If this does end up forming, I hope it does not affect So. Texas or No. Mexico.
Steering for the next 168 hours basically stays the same, pushing anything in the Caribbean into the Yucatan and subsequently into the GOM. In this case, a system forming in the Caribbean will be pushed into Mexico rather than Texas though.
Member Since: Posts: Comments:
Quoting bassis:
Question. Is that low off NC attached to a front

PS conus got banned, all his post got removed


No.
Member Since: November 24, 2005 Posts: 635 Comments: 26652
Quoting Levi32:


I would welcome whatever you have to offer. I'm not even sure if you were understanding me correctly before.



I'm good if you are. I didn't have anything to prove. You are the one who said I was wrong. I never said you were wrong, except about my post. But, I can gladly post supporting information, make take me a few minutes. I never said cyclogenesis couldn't occur other than at the surface. We see mid-level stuff work its way down often, not as often as from the surface up; but, that was not the point of the post anyways. The point was that dry air and dust are two different things, and are often confused. And, that dust mostly resides in the mid-levels. All of that is easily verifiable. And as such, consequently, dry air would be more of an inhibitor at the surface than dust would be. I also indicated that dust could be an inhibiting factor for a growing storm, depending on concentrations. I will find the link for you that explains how dust in certain proportions/patterns is hypothesized to even be a contributor to devleopment. (Didn't believe that myself when I first read it.)

Anyways, it was a good post, a post that's been made several times through the years and referenced. If it made you think a bit, then I guess it was worth it and you may have learned something. I have learned from you and many others here. So, it's all good. Again, you're a smart fella. Stay that way! ;)
Member Since: Posts: Comments:
Quoting MiamiHurricanes09:
No and no. Bertha came out looking like a monster, this is just your average AEW with a mid level circulation.
Bertha's birth was breach. Trouble from the start. She came out feet first and started tumbling head over heels across the Atlantic.
Member Since: Posts: Comments:
Question. Is that low off NC attached to a front

PS conus got banned, all his post got removed
Member Since: Posts: Comments:

Viewing: 926 - 876

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 | 44Blog Index

Top of Page

About

Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.