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Tropical Depression Two Along South Texas Coast

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

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.


The views of the author are his/her own and do not necessarily represent the position of The Weather Company or its parent, IBM.

Reader Comments

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1226. cg2916
Quoting tkeith:
blog rehab...

Post Storm Requirement :)


Yup.
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1224. tkeith
Quoting HurricaneObserver:
wow, nearly 24 hours and less than 1300 posts? Where is everyone?
blog rehab...

Post Storm Requirement :)
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well TexasHurricane let put it this way something might
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wow, nearly 24 hours and less than 1300 posts? Where is everyone?
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1221. Skyepony (Mod)
Got an ASCAT this morning of the wave around 40.

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1220. 7544
hmm 80 west is looking good at this hour
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11:00 am Hydrometeorological Prediction Center Advisory on TROPICAL DEPRESSION TWO
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Anything suppose to develop here?

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Quoting BahaHurican:
Can we see less of it, and have less talk of it? TYVM...


Agreed
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1214. Becca36
Quoting NRAamy:
BB...that's the most famous shower curtain in the known universe....

;)

That's the truth!
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Quoting NRAamy:
BB...that's the most famous shower curtain in the known universe....

;)
Can we see less of it, and have less talk of it? TYVM...
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1212. NRAamy
BB...that's the most famous shower curtain in the known universe....

;)
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1209. ticka1
I live east of Houston - in Baytown and have received 10+ inches. Needless to say the mosquitos are swarming and grass is growing too damn fast!
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1208. ticka1
Quoting TxGrandma:
You must be somewhere in my vicinity; I'm in Seabrook. Hope no-one wants to go to the fish markets this morning -- that end of Todville is under water!

It's nice to see the sun today. :)


Hi neighbors - I'm in Baytown. So the fisherman's markets in Seabrook/Kemah are underwater this morning? High Tide?
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1207. NRAamy
love you Destin!!!!

:)
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The rains in Texas have been scattered, I live south of Austin and only 2 inches the past 3 weeks
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1202. NRAamy
1198. TropicalAnalystwx13 8:37 AM PDT on July 09, 2010
We need a major hurricane to track...


or more cowbell....
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Quoting WestchesterCounty:


Amen to that.


yay, you added a picture!! lol.
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We need a major hurricane to track...
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Quoting jasoniscoolman2010x:


look likes the tropical wave will keep moving west..did you see the three high"s to the north


Not good news for the east coast.
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Pacific twins

And an interesting blob at 6N37W
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1193. Dakster
Gotcha... Welp, for those in Houston enjoy the rain while it lasts. It rain here yesterday and cooled things down a few degress for most of the day.
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1192. 7544
strom you cleared the blog lol evryone ranaway
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1189. 7544
ok so none of these 3 stooges have a shot of being 97l we just have to wait thanks storm for the update
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NE side of Houston here, close to the big airport (IAH, Humble/Kingwood area). 8" plus for July alone, and no, thats not normal. But my bet is that after the last two "tropical systems" dumped all that rain, the faucet going to be shut off for a while.
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I think that the original quote is misleading. I believe that they mean half of the rainfall for THIS year. It has been fairly dry for the early part of this year and it just doubled the rainfall so far. The normal annual rainfall for Houston proper (not the part where I live) is closer to 40 inches.
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1186. SLU


Nice convective blow up with this wave but the thunderstorms are already starting to collapse with low level arc clouds moving away from the main thunderstorm complex. I won't be surprise if the system fizzles out completely later today thus saving the Windwards from a possible major rainfall threat.
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so there is also cyclonic turning at 54W 27n right? And the reason it is not too exciting is because too much sal not letting in moisture to grow right? Storm I wish I could hang out with you for about a week straight and pick your brain, so everything I think I almost understand could fall into place. Thanks for your patience and your willingness to help teach.
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Quoting Dakster:


Houston - The new tropical paradise.... Complete with a monsoon season.


The plants love it! Everything is a beautiful green color! This is so nice, especially after the Dead Houston from winter when everything died from the cold snap.
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1183. Dakster
Quoting bluheelrtx:


I live 40 miles NW of downtown H-Town and I have only gotten 1.5 inches of rain in the last week, including the deluge last Friday. It's still pretty dry out here.


Isn't that normal though?

Getting half your rainfall for the year in two weeks, doesn't seem normal.
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1182. 13N59W
It would really be great if our 'new' Doppler Radar was working here in Barbados and that everyone one would be able to view it. Had .50" rain since I left home at 7.00am. Looks like that is only the beginning.
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Quoting Dakster:


Houston - The new tropical paradise.... Complete with a monsoon season.


I live 40 miles NW of downtown H-Town and I have only gotten 1.5 inches of rain in the last week, including the deluge last Friday. It's still pretty dry out here.
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1179. Dakster
Quoting StormW:
Hot off the press!

TROPICAL WEATHER SYNOPSIS JULY 09, 2010 ISSUED 10:30 A.M.



Thanks Stormw for the informative update and analysis.
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Off to work... again :(



AOI

AOI

AOI

AOI

TS BUSTED FORECAST ALIBI
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1177. tkeith
Quoting superweatherman:
The Blog is v e r y s l o o o w...
gooood :)
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1176. NRAamy
I see Destin is rockin' a new avatar today.....

:)
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Cat 6 lead authors: WU cofounder Dr. Jeff Masters (right), who flew w/NOAA Hurricane Hunters 1986-1990, & WU meteorologist Bob Henson, @bhensonweather

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