Dr. Jeff Masters' WunderBlog

Tropical Depression Two Along South Texas Coast
Posted by: Dr. Jeff Masters, 4:46 PM GMT on July 08, 2010 +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.
Categories: Hurricane
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2151. JLPR2 5:47 AM GMT on July 10, 2010    
Quoting Jedkins01:



hahaha its probably because I'm in college these days, whereas before I was a high schooler with way too much extra time. Even being an outdoor boy with a lot of good friends, I still always had way too much extra time to blab about weather on here.


I actually do check in here very often, I'm just usually not on the computer for more than 10 minutes or so lol.

I remember you though! I wonder how many originals are left? I was on here the first year Weather Underground created blogs! I'm an old timer around here, I even got banned a couple months ago for getting a little too upset at one of those angry bloggers like centex! lol

I guess being a blog old timer must be like being an old timer in real life, you think because your old you can say whatever the heck you want as long as its for a just cause! lol


haha! Yeah, high school allowed me to be on here more frequently, college is eating my time too. XD
Yet I somehow manage to log in everyday and check this blog, take pictures to keep my Wuphotos active while checking my Facebook O.o and then to study, I guess I'll go mad eventually. LOL
But I'm not that old on here LOL just three short years. XD
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2152. centex 5:47 AM GMT on July 10, 2010    
Quoting Tazmanian:
2147. centex 5:38 AM GMT on July 10, 2010 Hide this comment.
I back NHC and point out bloggers who don't and the blog devils kill me. Will no longer mention names. They are not worth effort and can't convince them following a Mansion type.
Action: Quote | Ignore User



POOF up up and a way you go
I'm impressed.
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2155. Jedkins01 5:55 AM GMT on July 10, 2010    
Quoting StSimonsIslandGAGuy:
Jedkins, yeah we get 100s about 1 out of 3 summers, and usually more than one day when we do have them.

It is hard to get to 100 here, because the seabreeze usually kicks in when it is that hot. The seabreeze actually did kick in today--we had the temp fall from 101 to 91 between 4:30 and 6:30, then the seabreeze failed and the temp warmed back up to 94 by 8:15 before falling again.

I do think this night will stay above 80, however.

Link

The west wind is stronger tonight. It will be interesting to see if storms form and keep us from getting to 100 again. Or if we really soar up to 102+.



Man that is crazy! That's usually what keeps us cooler too as the sea breeze, there were a few days back in june I thought we might just top 100, but the sea breeze held us steady every time between 97 and 99! In fact my weather station several times came ONE TENTH of a degree from 100 but never quite got there! lol

Over the 7 years Ive had a weather station, its never hit 100 at my house. I'm thankful to live by the coast in central Florida!

Honestly though, no matter what the numbers say, chances are it still feels hotter in Florida, whether it be the sun's intensity or the deep tropical moisture always floating in the deep tropical moisture around as well as all the swamps and wet lands.

But you're in southern Giorgia, which won't be very different from Florida, so I can imagine 101 is a huge deal there too, it must be really oppressive!
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2156. JLPR2 5:57 AM GMT on July 10, 2010    
Hello you suspicious looking area LOL
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2157. JLPR2 6:00 AM GMT on July 10, 2010    
Rio Piedras, San Juan, Puerto Rico (PWS)
81.5 °F / 27.5 °C
Partly Cloudy
Humidity: 82%
Dew Point: 76 °F / 24 °C
Wind: Calm
Wind Gust: 0.0 mph / 0.0 km/h
Pressure: 29.99 in / 1015.5 hPa (Falling)
Heat Index: 88 °F / 31 °C

Thank Goodness for A/C!
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2158. xcool 6:01 AM GMT on July 10, 2010    
:0
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2159. Jedkins01 6:02 AM GMT on July 10, 2010    
Quoting JLPR2:
Hello you suspicious looking area LOL


ITS FIXIN TO BE A CATEGORY 5 AND HIT US DADDY! GRAB THE DAGGUM 12 GUAGE AND GIT EM BEFORE HE GROWS TOO BIG OFF ALL THE WATER!
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2160. JLPR2 6:04 AM GMT on July 10, 2010    
Quoting Jedkins01:


ITS FIXIN TO BE A CATEGORY 5 AND HIT US DADDY! GRAB THE DAGGUM 12 GUAGE AND GIT EM BEFORE HE GROWS TOO BIG OFF ALL THE WATER!


I'll just hide under a bucket LOL!
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2161. CoffinWood 6:04 AM GMT on July 10, 2010    
Quoting JLPR2:
Hello you suspicious looking area LOL


As long as he's not winking two creepy little yellow eyes at you again...
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2163. JLPR2 6:12 AM GMT on July 10, 2010    
Quoting CoffinWood:


As long as he's not winking two creepy little yellow eyes at you again...


haha! yeah...
no creepy yellow eyes please :3
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2164. 92Andrew 6:14 AM GMT on July 10, 2010    
Levi is quite good. He's studying the tropics with all his might. Doing research on related weather events leading up to Alex's formation is impressive. But yeah, lol, felt like i shoudl sign into the account to say that.
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2165. Jedkins01 6:28 AM GMT on July 10, 2010    
Quoting StSimonsIslandGAGuy:
It was not as bad as it could have been, Jedkins---the west winds mixed down drier air from above and the dewpoint was 65 at peak temps today. 101 with a dewpoint of 65 is 31% humidity, and the heat index was 105.

Back on our hottest day in 1986, it was 104, with a dewpoint of 72. The heat index was 115.

Have seen higher heat indexes than that when we have had a seabreeze raise dewpoints to 81/82, with the temperature 93/96. Then the heat index has reached 120---highest I can remember is 122.
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2166. Jedkins01 6:36 AM GMT on July 10, 2010    
Quoting StSimonsIslandGAGuy:
It was not as bad as it could have been, Jedkins---the west winds mixed down drier air from above and the dewpoint was 65 at peak temps today. 101 with a dewpoint of 65 is 31% humidity, and the heat index was 105.

Back on our hottest day in 1986, it was 104, with a dewpoint of 72. The heat index was 115.

Have seen higher heat indexes than that when we have had a seabreeze raise dewpoints to 81/82, with the temperature 93/96. Then the heat index has reached 120---highest I can remember is 122.



Yeah usually on the hottest days the dry air does mix down... But every now on then you get the worst combination between muggy air from the seabreeze but yet never really cooled off by it...

We had several days with the heat index was around 110 to 120 last month. It got that bad in June last year too!

It seems June is the hottest month around here in the summer. We just get too much rain around here the rest of the summer months. Like now, we had so much rain last 2 weeks, that this hot dry spell last few days isn't turning out that bad. The ground has been rain cooled excessively, to where the sun seems to focus more on moisture evaporation rather then rising the air temperature.



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2167. ElConando 6:41 AM GMT on July 10, 2010    
Quoting JLPR2:


I'll just hide under a bucket LOL!


*JLPR hides under bucket*

El Conando "Pffft get your own bucket".
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2168. ElConando 6:42 AM GMT on July 10, 2010    
Quoting JLPR2:
Hello you suspicious looking area LOL


It has some spuriously spurious activity.
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2169. xcool 6:43 AM GMT on July 10, 2010    
lol
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2170. Jedkins01 6:46 AM GMT on July 10, 2010    
Quoting ElConando:


It has some spuriously spurious activity.



Nah, looks like the GFS is just developing spurious areas of low pressure again... Which means it must be discounted from the forecast.
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2171. JLPR2 6:53 AM GMT on July 10, 2010    
Quoting ElConando:


*JLPR hides under bucket*

El Conando "Pffft get your own bucket".


haha!
*Notices another bucket with a Florida Flag and a shower curtain on the side, sigh, I sit on a chair waiting for the cane to come and get me.*
LOL XD
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2172. JLPR2 6:56 AM GMT on July 10, 2010    
Not going away, eh...
It'll probably be gone in the morning *crosses fingers*

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2173. xcool 7:02 AM GMT on July 10, 2010    
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2174. IKE 8:54 AM GMT on July 10, 2010    
00Z ECMWF shows absolutely zilch affecting the USA through July 20th.
Bonnie...where R U?


South America view of the 00Z ECMWF which shows the east ATL and the coast of Africa.
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2175. PensacolaDoug 9:01 AM GMT on July 10, 2010    
new blog
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2176. hydrus 1:40 PM GMT on July 10, 2010    
Quoting JLPR2:
Hello you suspicious looking area LOL
Yes. It is a healthy little blob.
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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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