Dr. Jeff Masters' WunderBlog

Floods kill 16 in Arkansas; dozens missing
Posted by: Dr. Jeff Masters, 4:24 PM GMT on June 11, 2010 +2
Heavy rains in excess of seven inches fell over southwestern Arkansas overnight, triggering flash floods that killed at least sixteen people in Caddo Gap, in the rugged Ouachita Mountains. Forty people are missing, with dozens injured. The closest weather station to the disaster is Mount Ida, which recorded 7.16" of rain over the past 48 hours. The USGS is reporting that the Caddo River in Caddo Gap rose from 8.4 feet at 3am CDT to 25.39 feet in just five hours, reaching the 2nd highest flood height on the river since records began in 1989. The Little Missouri River west of Caddo Gap rose 20 feet overnight, from 3 feet to 23.5 feet. The previous highest flood in the 22-year record at this location was just 14.66 feet, set in 2008. You can look at local rainfall amounts and river flood levels in the region using our wundermap with the "USGS River" layer turned on.

Andy Revkin at the New York Times has a blog worth reading on the disaster.


Figure 1. Radar estimated rainfall for June 9 - 11 over Southwest Arkansas. Rainfall amounts in excess of eight inches are indicated for Caddo Gap, where today's flood disaster occurred.

Oil spill update
Southeast to south winds of 10 - 15 knots will blow today through Saturday, according to the latest marine forecast from NOAA. These winds will keep oil near the shores of Louisiana, Alabama, Mississippi, and the extreme western Florida Panhandle, according to the latest trajectory forecasts from NOAA and the State of Louisiana. The winds become light an variable Sunday through Tuesday, which will result in little movement of the spill. The long range 8 - 16 day forecast from the GFS model indicates a continued regime of light winds, mostly out of the south or southeast. This wind regime will likely push oil onto sections of the eastern Louisiana coast during the period 1 - 2 weeks from now.


Figure 2. The oil spill as imaged on June 10, 2010, by NASA's Aqua satellite.

Oil spill resources
My post, What a hurricane would do the Deepwater Horizon oil spill
NOAA's fact sheet on Hurricanes and the Oil Spill
My post on the Southwest Florida "Forbidden Zone" where surface oil will rarely go
My post on what oil might do to a hurricane
Oil trajectory forecasts from NOAA
Gulf Oil Blog from the UGA Department of Marine Sciences
Oil Spill Academic Task Force
University of South Florida Ocean Circulation Group oil spill forecasts
Synthetic Aperture Radar (SAR) imagery from the University of Miami

The tropical Atlantic is quiet right now, with no models predicting tropical cyclone development over the next seven days. I'll have a new post either Saturday or Monday.

Jeff Masters
Wicked sky (vanpet)
Storm front pushing through jacksonville Arkansas!
Wicked sky
flash flood russellville arkansas friday june 11th 2010 (yfoog)
flash flood russellville arkansas friday june 11th 2010
flash flood russellville arkansas friday june 11th 2010
Categories: Flood
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2001. MiamiHurricanes09 10:36 PM GMT on June 12, 2010    
Quoting SiestaKeySam:


Yes, I do, but I'm home for the summer. You should study met, Cane, you really love it.
We know you are JFV but as long as you behave I don't care. I do love meteorology, preferably tropical meteorology. But I still have a while to go before I begin to study met.
Member Since: September 2, 2009 Posts: 129 Comments: 19976
2002. KoritheMan 10:36 PM GMT on June 12, 2010    
Quoting leo305:


"off topic"

Speaking of them, I was going to visit the NHC tomorrow, do they mind visitors? I mean just to see how it was like being there, and how they track and what not. It was too far a walk though, I was in FIU, they are located in the campus =P


I remember reading on their site that you have to call and make an appointment.
Member Since: March 7, 2007 Posts: 410 Comments: 15455
2003. MiamiHurricanes09 10:36 PM GMT on June 12, 2010    
Quoting nrtiwlnvragn:


Special TWO is issued for important changes, designating an invest does not rise to that level.
Oh I see.
Member Since: September 2, 2009 Posts: 129 Comments: 19976
2004. GoodOleBudSir 10:36 PM GMT on June 12, 2010    
Quoting SiestaKeySam:
Leo, I wouldn't recommend it, especially now that the season is udnerway, why didn't you do it during the off-season? by the way, i live near Pantehr Hall over there, by the way, only minutes from them. thank god the NHC is inside of FIU and not inside of some otehr unievrsity.


Are you kidding me? Another screen name?????
Member Since: July 30, 2008 Posts: 0 Comments: 261
2006. Cavin Rawlins 10:37 PM GMT on June 12, 2010    
Member Since: July 24, 2005 Posts: 407 Comments: 19076
2007. leo305 10:37 PM GMT on June 12, 2010    
Quoting SiestaKeySam:
Leo, I wouldn't recommend it, especially now that the season is udnerway, why didn't you do it during the off-season? by the way, i live near Pantehr Hall over there, by the way, only minutes from them. thank god the NHC is inside of FIU and not inside of some otehr unievrsity.


oh I was just going to visit the place to see how it looks, not go into there studios and sit with them tracking (if that's what you were assuming, which i wouldn't dare to do), also I am going to start at FIU in the summer, it's just that they tend to hide there curriculum to there freshmen, which Is something I dislike.. if anyone goes there, please message me, and tell me how there meteorological program works, because there site has no info whatsoever.. if it does, it's really hard to find.
Member Since: April 17, 2010 Posts: 0 Comments: 1752
2008. PanhandleChuck 10:37 PM GMT on June 12, 2010    
Quoting GoodOleBudSir:


Are you kidding me? Another screen name?????


LMAO
Member Since: May 13, 2008 Posts: 0 Comments: 1183
2009. all4hurricanes 10:38 PM GMT on June 12, 2010    
92L looks good, models on WU say this could be a hurricane.
Member Since: March 29, 2008 Posts: 0 Comments: 2192
2010. masonsnana 10:38 PM GMT on June 12, 2010    
Quoting Weather456:
456 What is your take on this?
Member Since: February 14, 2004 Posts: 2 Comments: 513
2011. MiamiHurricanes09 10:38 PM GMT on June 12, 2010    
Quoting all4hurricanes:
92L looks good, models on WU say this could be a hurricane.
SHIPS suggests that.
Member Since: September 2, 2009 Posts: 129 Comments: 19976
2012. MiamiHurricanes09 10:39 PM GMT on June 12, 2010    
Member Since: September 2, 2009 Posts: 129 Comments: 19976
2013. BadHurricane 10:39 PM GMT on June 12, 2010    
Invest 92L is on Navy site.

Link
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2014. Levi32 10:39 PM GMT on June 12, 2010    
Official 18z coordinates are 6.3N, 31W, which places the main low center right in the bullseye of where we would like to see it right now for best organization. The circulation remains somewhat broad and elongated, however.

Member Since: November 24, 2005 Posts: 586 Comments: 25459
2015. KEEPEROFTHEGATE (Mod) 10:39 PM GMT on June 12, 2010    
Quoting aquak9:
dangit, where's keeper?

7.5 mag, about 22 miles deep. off the west coast of India


having dinner
miss that one
its a biggy for sure
no wave thats good


Member Since: July 15, 2006 Posts: 143 Comments: 40622
2016. Chicklit 10:40 PM GMT on June 12, 2010    
Quoting PanhandleChuck:


LMAO
he multiplies himself like wabbits...or woaches.
Member Since: July 11, 2006 Posts: 14 Comments: 10254
2017. Drakoen 10:40 PM GMT on June 12, 2010    
Quoting Levi32:


A little more recent one:



Suggestive of equatorward and a developing poleward outflow around the low pressure center.
Member Since: October 28, 2006 Posts: 57 Comments: 29010
2018. TerraNova 10:41 PM GMT on June 12, 2010    
Member Since: July 30, 2007 Posts: 76 Comments: 4058
2019. GoodOleBudSir 10:41 PM GMT on June 12, 2010    
Quoting Chicklit:
he multiplies himself like wabbits...or woaches.


that diwector is wubbing me the wong way! lol
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2022. Chicklit 10:42 PM GMT on June 12, 2010    
Great view, Terra!
Member Since: July 11, 2006 Posts: 14 Comments: 10254
2024. MiamiHurricanes09 10:43 PM GMT on June 12, 2010    
Quoting Levi32:
Official 18z coordinates are 6.3N, 31W, which places the main low center right in the bullseye of where we would like to see it right now for best organization. The system remains somewhat broad and elongated, however.

Let's hope tonight we can get a good ASCAT pass to see if its broad or closed.
Member Since: September 2, 2009 Posts: 129 Comments: 19976
2025. CybrTeddy 10:43 PM GMT on June 12, 2010    
SPECIAL UPDATE 6/12/10
92L is declared!

Is it July yet? It sure looks it! Tropical Invest 92L has been declared out in the deep tropics and its believe it or not well organized with a 1012 mb low with very little to no forward speed which is going to help with the fact that there is a 80 knot shear barrier off the Virgin Islands. This was very unexpected to me, to not only have an invest in the deep tropics in early June but to have one that looks like a system in late July timeframe.


(curret NOAA GOES satellite image)


(shear image, showing that 80 knot shear barrier I was talking about)

92L will likely take a Westward path right into that wall of shear, but has a chance if it continues to move slow to become TD1 or even Tropical Storm Alex before opening back up into a wave. 92L is obviously a long ways off and poses no threat what so over other than to shipping.

CybrTed
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2026. Tazmanian 10:44 PM GMT on June 12, 2010    
this may be the best ch for a name storm yet this year
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2027. Levi32 10:44 PM GMT on June 12, 2010    
Finally some decent close-up loops.

Member Since: November 24, 2005 Posts: 586 Comments: 25459
2028. Cavin Rawlins 10:44 PM GMT on June 12, 2010    
Quoting masonsnana:
456 What is your take on this?


It displays good structure on satellite and microwave imagery so I'm not really surprised on the tagging. I expect the system to slide wnw based on the steering flow seen both at the CIMSS and PSU sites and the water vapor imagery.

The system lacks model support by much of the global models maybe becuz they take it too far north into the band of high shear. the statistical models now show a more southerly track, sparing the disturbance from the destructive shear and raising the intensity level.

Environmental conditions should remain favorable at least south of 15N over the next few days and at this point I am inclined to go with a more southerly track, since there isn't any really significant system that would just tug the system all the way to 20N before 60W as some of the global models were indicating.

At this point I am watching and waiting to see the state of 92L by 2mr.
Member Since: July 24, 2005 Posts: 407 Comments: 19076
2029. KEEPEROFTHEGATE (Mod) 10:44 PM GMT on June 12, 2010    
Quoting Levi32:
Official 18z coordinates are 6.3N, 31W, which places the main low center right in the bullseye of where we would like to see it right now for best organization. The system remains somewhat broad and elongated, however.


darkness falls
it will tighten up and tonight should be a good night for a heavy first round convective cycle
tomorrow the normal flare up in early am and then the waning cycle in late afternoon
lets see how this plays out
should be interesting for sure
Member Since: July 15, 2006 Posts: 143 Comments: 40622
2030. leo305 10:45 PM GMT on June 12, 2010    
I don't believe the system will become an open wave if it reaches tropical storm strength, if it continues its WNW movement after the encounter with that band of shear, it will likely move into a favorable area of lesser shear values.
Member Since: April 17, 2010 Posts: 0 Comments: 1752
2031. CaribBoy 10:47 PM GMT on June 12, 2010    
Healthy system in the CATL. Looks like convection is extending in coverage while getting stronger.
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2032. KEEPEROFTHEGATE (Mod) 10:47 PM GMT on June 12, 2010    
INV/92/L
MARK
6.3N/33.3W
Member Since: July 15, 2006 Posts: 143 Comments: 40622
2033. leo305 10:47 PM GMT on June 12, 2010    
Quoting Weather456:


It displays good structure on satellite and microwave imagery so I'm not really surprised on the tagging. I expect the system to slide wnw based on the steering flow seen both at the CIMSS and PSU sites and the water vapor imagery.

The system lacks model support by much of the global models maybe becuz they take it too far north into the band of high shear. the statistical models now show a more southerly track, sparing the disturbance from the destructive shear and raising the intensity level.

Environmental conditions should remain favorable at least south of 15N over the next few days and at this point I am inclined to go with a more southerly track, since there isn't any really significant system that would just tug the system all the way to 20N before 60W as some of the global models were indicating.

At this point I am watching and waiting to see the state of 92L by 2mr.


There is a trough in the northern atlantic that was dipping ever so gradually to the south and moving east, perhaps that was what could gravitate the system towards the NW as opposed to the WNW, but not by much. I believe that's what the models were counting on to move this thing a bit more northward.
Member Since: April 17, 2010 Posts: 0 Comments: 1752
2034. Levi32 10:48 PM GMT on June 12, 2010    
Quoting leo305:
I don't believe the system will become an open wave if it reaches tropical storm strength, if it continues its WNW movement after the encounter with that band of shear, it will likely move into a favorable area of lesser shear values.


One thing going for 92L is its large size. If the system does surprise everybody and develop into a healthy tropical storm, its massive circulation would help it fight the wind shear, more so than a smaller system.
Member Since: November 24, 2005 Posts: 586 Comments: 25459
2035. PanhandleChuck 10:48 PM GMT on June 12, 2010    
Quoting Chicklit:
he multiplies himself like wabbits...or woaches.


If it is JFV --- he is dying to ask the questions -- How will this affect the CONUS/ And Is it going to take aim on S. Fl
Member Since: May 13, 2008 Posts: 0 Comments: 1183
2036. MiamiHurricanes09 10:49 PM GMT on June 12, 2010    
Quoting Levi32:


One thing going for 92L is its large size. If the system does surprise everybody and develop into a healthy tropical storm, its massive circulation would help it fight the wind shear, more so than a smaller system.
That is true.
Member Since: September 2, 2009 Posts: 129 Comments: 19976
2038. Cavin Rawlins 10:50 PM GMT on June 12, 2010    
Dang

Member Since: July 24, 2005 Posts: 407 Comments: 19076
2039. aquak9 10:50 PM GMT on June 12, 2010    
Quoting KEEPEROFTHEGATE:

darkness falls
it will tighten up and tonight should be a good night for a heavy first round convective cycle
tomorrow the normal flare up in early am and then the waning cycle in late afternoon
lets see how this plays out
should be interesting for sure


wouldn't be surprised to see that inverted v signature come first visual tomorrow, keep
Member Since: August 13, 2005 Posts: 163 Comments: 25008
2040. Levi32 10:51 PM GMT on June 12, 2010    
Quoting Weather456:
Dang



A very apt word for what we are seeing.
Member Since: November 24, 2005 Posts: 586 Comments: 25459
2041. stormwatcherCI 10:51 PM GMT on June 12, 2010    
Quoting PanhandleChuck:


If it is JFV --- he is dying to ask the questions -- How will this affect the CONUS/ And Is it going to take aim on S. Fl
Asked already LOL
Member Since: October 9, 2008 Posts: 0 Comments: 8040
2042. MiamiHurricanes09 10:51 PM GMT on June 12, 2010    
Quoting SiestaKeySam:


drak expecst to turn into a cane, so dissapation, IDK.
Drak never said it was going to turn into a hurricane, he only hinted on track.
Member Since: September 2, 2009 Posts: 129 Comments: 19976
2043. Levi32 10:51 PM GMT on June 12, 2010    
92L is embedded in an area of very high TPW values.

Member Since: November 24, 2005 Posts: 586 Comments: 25459
2044. JLPR2 10:53 PM GMT on June 12, 2010    
Quoting Weather456:
Dang



tonight should be interesting
Member Since: September 4, 2007 Posts: 7 Comments: 7487
2046. MiamiHurricanes09 10:54 PM GMT on June 12, 2010    
Quoting Levi32:
92L is embedded in an area of very high TPW values.

What's TPW?
Member Since: September 2, 2009 Posts: 129 Comments: 19976
2047. KEEPEROFTHEGATE (Mod) 10:54 PM GMT on June 12, 2010    
i give an orange shade and a 40 to 50 percent chance for dev there is a slight chance for rapid dev as well over the next 24 hrs
Member Since: July 15, 2006 Posts: 143 Comments: 40622
2048. Drakoen 10:54 PM GMT on June 12, 2010    
Quoting SiestaKeySam:


drak expecst to turn into a cane, so dissapation, IDK.


No I do not. This system does have the potential to become a decent TS over the next couple of days especially if it takes a southerly track.
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2049. 305st0rm 10:55 PM GMT on June 12, 2010    
Dang!!
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2050. MiamiHurricanes09 10:55 PM GMT on June 12, 2010    
Quoting JLPR2:


tonight should be interesting
yeah, tonight is going to be the first night that I stay up after midnight. Let's see how that works out, lol.
Member Since: September 2, 2009 Posts: 129 Comments: 19976
2051. Levi32 10:56 PM GMT on June 12, 2010    
Quoting MiamiHurricanes09:
What's TPW?


Total Precipitable Water, the amount of liquid water that would result if all of the moisture in the atmospheric column was condensed.
Member Since: November 24, 2005 Posts: 586 Comments: 25459

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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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