Dr. Jeff Masters' WunderBlog

Texas floods kill 5
Posted by: Dr. Jeff Masters, 3:59 PM GMT on May 26, 2007 +6
Flash flooding triggered by heavy thunderstorm rains of up to seven inches in 24 hours claimed at least five lives in Texas Friday, and large portions of the state remain under flood warnings or flood watches today, as thunderstorms continue across the state. All of those killed were swept away in their vehicles, and police were still looking for a missing man who drove around a barricade blocking a swollen creek.


Figure 1. Precipitation for the 24 hours ending at 8am EDT Saturday May 26, 2007.

Drought last year, floods this year
As I discussed in a March blog last year, grass fires in drought-parched Texas killed seven people on March 12 in the Panhandle, four of them in a car crash on I-40 caused by thick smoke obscuring visibility. More than 1,000 square miles of Texas burned that day--an area about two-thirds the size of Rhode Island. It's amazing what a turnaround has occurred in the past year. Most of Texas and Oklahoma were under drought conditions that reached the extreme level last spring (Figure 2), but this year, the Texas/Oklahoma drought is gone (Figure 3), and instead has moved into the Southeastern U.S. We don't understand very well what causes these shifts in drought patterns, but they do seem to be linked to changes in large-scale sea surface temperature patterns in the Atlantic and Eastern Pacific, plus shifts in the jet stream pattern. Are the floods in Texas this year and drought last year partially due to global warming? Yes, they might be. Global warming theory predicts that both droughts and floods will grow more severe as the climate warms. Floods will increase, since a warmer atmosphere holds more water vapor that can then rain out into heavier floods. Scientists have already documented about a 5% increase in global atmospheric water vapor due to global warming, and this extra moisture is undoubtedly causing heavier rains and more flooding in some regions. Drought will increase in intensity due to global warming, thanks to the hotter temperatures drought-striken areas will receive when jet stream and sea surface temperature patterns conspire to keep rainfall from the drought area.


Figure 2. Drought map for March 7, 2006.


Figure 3. Drought map for May 22, 2007.

Jeff Masters
Categories: Climate Change Flood
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901. kmanislander 1:57 AM GMT on May 29, 2007    
Earlier this afternoon I suggested that the NHC would probably drop the low in the SW Caribbean due to the very poor sat presentation in that area. That has now happened so we are back to the waiting game to see what else materialises
This from the 8:05 discussion tonight

A sfc trough
remains between ern Cuba and Panama along 20n78w 11n79w. A weak
low may be readded along this trough at 0000 UTC with the low
level cyclonic circulation noted near 14n79w
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903. Bamatracker 1:59 AM GMT on May 29, 2007    
wooohoo....time for blob watching!!
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904. Alec 1:59 AM GMT on May 29, 2007    
many models never were interested in the Caribbean blob to begin with....
905. Bamatracker 2:01 AM GMT on May 29, 2007    
the models were just being stuck up!
Member Since: May 17, 2006 Posts: 6 Comments: 1364
906. bappit 2:02 AM GMT on May 29, 2007    
For the panhandle of Florida in the first week of June, climatology is probably about as good as what the global models show. So I'll go with upper 80's, low 90's slight chance of afternoon thundershowers.

...responding to previous question.
Member Since: May 18, 2006 Posts: 3 Comments: 4381
907. Alec 2:04 AM GMT on May 29, 2007    
bama...the models were so bored they decided to spin up spaghetti meatballs..LOL....One jokester had a hurricane off the NC coast!
908. kmanislander 2:05 AM GMT on May 29, 2007    
Posted By: Alec at 1:59 AM GMT on May 29, 2007.

many models never were interested in the Caribbean blob to begin with....

True but many of them did call for something to form down there. It just did not pan out the way they predicted
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909. Bamatracker 2:06 AM GMT on May 29, 2007    
hmmm...surprise i didnt hear about that on the blog earlier...seems like someone would have been all over that.
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910. melwerle 2:06 AM GMT on May 29, 2007    
Hey StormW right back...good to see everyone.

Orginally from S.CA - (san diego - where if we had a rain shower it was like a gift from heaven) to here - in S. GA where when we moved here it rained for three weeks straight non-stop every day with no relief. I thought it was a sign from GOD that I shouldn't have moved to the south...

The rain stopped that year after that - slight showers moving in during the evening hours but nothing like it was - we have fires not too far away that are wicked. I don't know what the future brings but I would love to hear the tree frogs croak so loud again that you can't talk on the phone outside - that seems to have subsided over the last year. I don't care about the hurricanes or the tropical depressions - love watching them come across and hope for the rainfall - not the terrible stuff that comes with them...

i would just like to have some decent weather without the flooding and terrible winds. :)


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911. Alec 2:07 AM GMT on May 29, 2007    
But like I said "nothing is written in stone".....LOL
912. kmanislander 2:09 AM GMT on May 29, 2007    
Posted By: Alec at 2:07 AM GMT on May 29, 2007.

But like I said "nothing is written in stone".....LOL

According to Stormtop it is LOL
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913. Alec 2:10 AM GMT on May 29, 2007    
kman.....even that guy isnt written in stone!LOL
914. snowboy 2:11 AM GMT on May 29, 2007    
hey folks, don't want to spoil your fun but May is pretty early to be obsessing about Caribbean blobs..
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915. RL3AO 2:11 AM GMT on May 29, 2007    
We have ALVIN! Check NRL.
916. Bamatracker 2:13 AM GMT on May 29, 2007    
Heck no snowboy!!! never too early to blob watch!!! LOL
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917. Alec 2:13 AM GMT on May 29, 2007    
Posted By: snowboy at 10:11 PM EDT on May 28, 2007.

hey folks, don't want to spoil your fun but May is pretty early to be obsessing about Caribbean blobs..


Thats what Ive been trying to tell the forum......But, hey if you want a stormtop lecture, makes for some interesting fun...LOL
918. kmanislander 2:16 AM GMT on May 29, 2007    
The fact that we actually had something to talk about in the Caribbean this early is interesting in and of itself. Typically the start of the season is very slow until about mid to late July, even in years with a June storm.
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919. Alec 2:17 AM GMT on May 29, 2007    
Yeah...I get excited when a little cu deck forms in the loop current....LOL
920. Bamatracker 2:18 AM GMT on May 29, 2007    
hey at least we are paying attention and getting ready. Lots of folks dont really know whats going until they are under a warning.
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921. kmanislander 2:19 AM GMT on May 29, 2007    
Won't be much action over the loop current for a long time with shear and water temps where they are in the GOM
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922. Alec 2:20 AM GMT on May 29, 2007    
well, you're always in the loop here.....every burst of convection is closely monitored!
923. Bamatracker 2:20 AM GMT on May 29, 2007    
hehe....the local news is showing katrina pictures.
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924. Alec 2:24 AM GMT on May 29, 2007    
bama.....good example...tropics are sooooooooo boring the media has to relive those memories....
925. Randyman 2:24 AM GMT on May 29, 2007    
Posted By: Alec at 1:23 AM GMT on May 29, 2007.

Are there any big rivers in the East Tx area? because I can remember when FL had flooding problems, the rivers would crest after the event...



Not necessarily 'big rivers' but there are plenty of rivers that will crest during periods of excessive rainfalls...this in turn may affect communities nearby...What's up Alec? Long time since we've talked...
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926. kmanislander 2:26 AM GMT on May 29, 2007    
Now the QS pass is showing a circulation near 81W !. Must be very weak

img src=http://manati.orbit.nesdis.noaa.gov/img/quikscatcur_ds.map?441,227 width=640 height=480>
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927. Alec 2:27 AM GMT on May 29, 2007    
yo randyman......Im on break....working at NWS hoping to get experience in the field.....how's the weather where you are?
928. kmanislander 2:27 AM GMT on May 29, 2007    
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930. kmanislander 2:35 AM GMT on May 29, 2007    
well I'm out of here for tonight.
C U all tomorrow
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931. marlinsfan1 2:49 AM GMT on May 29, 2007    
I live in Pinecrest, and we were out for 2 and a half weeks
932. TheCaneWhisperer 2:58 AM GMT on May 29, 2007    
Here is the monthly rainfall archive for South Florida! Little note, that article and what it speaks of is South Flordia only! I did some searching and it looks pretty darn accurate! Notice the dry counties in 2005 and 2006 and where storms hit!
933. HurricaneFCast 3:04 AM GMT on May 29, 2007    
Looks like our Caribbean blob has vanished. He's playing Hide-and-Seek.
Member Since: April 20, 2007 Posts: 7 Comments: 1482
934. HurricaneFCast 3:05 AM GMT on May 29, 2007    
Latest and Gentleman, Alvin has entered the building. Sounds threatening huh? Lol.
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935. weatherblog 3:08 AM GMT on May 29, 2007    
I live in Northern Broward...fortunately only 1 week. Had to wait 5 months for cable. grrrrrrr...lol
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936. kellnerp 3:20 AM GMT on May 29, 2007    
There are already methods that can build cost effective buildings that will withstand hurricanes and some tornados. They are also energy efficient.

I was in New Orleans recently and the convention center I was in had the most over reinforced roof trusses I have ever seen outside of a military installation. Nobody is going to want to spend for that kind of construction. Domes provide a support free interior space and are ideal for large rooms like gyms, but with just normal construction practice can be made proof against both hurricanes and tornados owing to both their inherent strength and their shape which does not give the wind as much bite. The other thing about a dome is that the part of the structure that is key to it's strength is low to the ground and most of the time is on the ground and therefore very difficult to damage.

http://www.dometech.com/architectural/commercial.html

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937. TheCaneWhisperer 3:28 AM GMT on May 29, 2007    
Another note! If you look at 2007 dry counties and compare it to the UCF probabilies, it looks like UCF may be running with this theory!

Also of note! I typed in UCF Hurricane Predictions and it listed fellow WU Blogger Skyepony as the second source, congrats!
939. TheCaneWhisperer 3:32 AM GMT on May 29, 2007    
Ever heard of SIPS Kell? It is the after Katrina Home able to withstand 500mph winds and 8000 sq ft home can be built in 6 months! We're going to be installing cabinetry in many of the new SIPS homes here in Florida!
940. franck 3:47 AM GMT on May 29, 2007    
Yes, concrete and steel from here out, and no blunt faces. When the first high rise goes from a tornado or hurricane, that type of building will come to a dead stop..thankfully.
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941. HurricaneFCast 3:54 AM GMT on May 29, 2007    
There's hardly anything out there right now, rather disappointing. Nothing significant with development potential.


Please people, Join my New Forum Website, It's a great site and I need new members to start posting. There's plenty of topics, including the weather, to start, the more the merrier and there is no bandwidth limit either. You can start your own forum on my site by requesting to make a new group, related to weather if you wish. The main reason is, though, I literally just finished the initial creation tonight, so it's BRAND new, and I need feedback REALLY bad, so please at least join and message me with some feedback, i'm open to any comments or suggestions on it. Sorry to bother everyone, but i'm just trying to gain some info here to better my website, eventually i want it to build into a 24/7 resource for weather info and any breaking news etc.
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942. HurricaneFCast 3:55 AM GMT on May 29, 2007    
FORUM GIANT

Here's the link, i'd really appreciate feedback everyone. It's much appreciated if you join as well, it's a free membership.
Member Since: April 20, 2007 Posts: 7 Comments: 1482
943. Jedkins 3:57 AM GMT on May 29, 2007    
500 mph winds thats bullcrap stupid pridefull disgners think their construction can withstand 500 mph winds...


They have no clue what 500 mph winds could do, mathematically that will hurl a tank through the air, enough potential desctruvte power to that of a nuclear weopon.



Remember the unsinkable titanic? It sank from an iceberg that made an indirect strike quickly sinking it.


Oh ya, and a highly reinforced production plant that was supposed to withstand any tornado was leveled completey by an f4 tornado in Illinois.

Folks, yes we can make structures stronger, but in the end when money is involved combined with reality(most of the advertised strength is pride, learn to understand it, people tend to have a lot of it.) Untimately we just have to learn to evacuate and not build so close to the coast, or go underground when a tornado approaches, because I don't care what your in, when a strong tornado hits your structure, your risking your life.
944. Jedkins 4:03 AM GMT on May 29, 2007    
I just thought I'd bring a little reality in, people try to hard to resist the hard ships of life and fail trying, man neads to realized e's not all powerfull, and he needs to realize life has hardships such as storms, and we need to focus more on not building in hurricanes paths so much, making sure avacuations are more efficient.

As for tornados, more people need to be educated so they know what to do, and there needs to be more safe shelters underground and other ways of aleting people to help save lives.

Even then, you cannot completely secure safety, life is not going to be easy many times, and we all should learn to adjust tro that more, which definitely goes for dangerous weather as well.
945. weatherblog 4:16 AM GMT on May 29, 2007    
I think this year, 2007, will turn out very close with the amount of storms and intensity as the year 1933. If you look at 1933 the first storm formed in early May and the next one late June. I think this will be a year very close to 1933. Look for yourselves.
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946. SavannahStorm 4:31 AM GMT on May 29, 2007    
Here we go again folks!

It's "I think I see a pinhole eye..." season again.

Have a happy and safe 2007 Hurricane Season!
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948. HurricaneFCast 5:15 AM GMT on May 29, 2007    
Here's a link to Some VERY useful weather links in my New Forum- Forum Giant- Useful Weather Links
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951. StoryOfTheCane 9:28 AM GMT on May 29, 2007    
got a little SW Caribbean activity, GFS is taking it into the Pacific.

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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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