Dr. Jeff Masters' WunderBlog

Tropical Depression Emily Reforms, Rain for the Bahamas
Posted by: Dr. Jeff Masters, 4:28 AM GMT on August 07, 2011 +17
As of 11PM EDT, Tropical Depression Emily was located at 27.4N, 78.2W, 70 miles NNE of Freeport, Grand Bahama Island. It was moving north at 8 mph with sustained winds of 35 mph and a minimum central pressure of 1011 mb. No watches or warnings are in effect for Emily at this time.


Figure 1 IR satellite view of Emily taken at 1200AM EDT, August 7, 2011

The remnants of Tropical Storm Emily were recognized as a tropical depression after analysis of surface observations, satellite imagery, and Hurricane Hunter flights showed that Emily had achieved a closed circulation again. However, at this time, it is not expected to do much beyond raining heavily (1-3 inches, 6 inches in isolated regions) over the Bahamas. As Figure 2 shows, NHC forecasts Emily to move north and then sharply eastwards before dissipating as it merges with a front. The westerly wind shear associated with this front will be the likely cause for Emily's second demise.


Figure 2 Official track forecast of Emily.

As Figure 3 shows, the concerns for rain from Emily is justified based on past behavior. Satellite estimates shows that on August 4, 3-5 inches of rain fell just south of Hispaniola, with 1-2 inches falling on the southern Dominican Republic.


Figure 3 Satellite-estimated precipitation (mm) for Thursday, August 4 using the CMORPH techniques. Data provided by the Climate Prediction Center

If the situation warrants, we will have a new blog entry Sunday. Otherwise, we will resume the normal posting schedule on Monday.

Thanks for reading,

Dr. Rob Carver
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1451. nrtiwlnvragn 4:45 PM GMT on August 08, 2011    
Quoting shfr173:
ok i'll bite, what is a pouch?


Link
Member Since: September 23, 2005 Posts: 12 Comments: 9089
1452. DFWjc 4:48 PM GMT on August 08, 2011    
Quoting weathermanwannabe:
At the end of the day loss of life is the greatest tragedy from any hurricane and Andrew, in spite of the "economic" damage and Cat 5 upgrade, pales in comparison to the loss of life with Katrina.


Katrina had 81 billion to Andrew's 26.5 bilion dollars of damage.. loss of life was Katrina 1836 to Andrew's 65.
Member Since: July 19, 2011 Posts: 1 Comments: 967
1453. shfr173 4:52 PM GMT on August 08, 2011    
thanks for the link!
Member Since: September 4, 2008 Posts: 0 Comments: 74
1454. VAbeachhurricanes 4:55 PM GMT on August 08, 2011    
Quoting KEEPEROFTHEGATE:
Index Country Change % Change Level Last Update
Dow Jones Industrial Average United States -338.57 -2.96% 11,106.04 12:22:08pm ET
S&P 500 Index United States -45.91 -3.83% 1,153.47 12:20pm ET
Brazil Bovespa Stock Index Brazil -2,846.12 -5.38% 50,103.10 12:05pm ET
Canada S&P/TSX 60 Canada -14.79 -2.14% 677.05 12:06pm ET
Santiago Index IPSA Chile -174.20 -4.28% 3,891.89 12:03pm ET
IPC Mexico -1,006.68 -2.99% 32,691.19 12:01pm ET



yeah, its getting ugly
Member Since: September 6, 2007 Posts: 0 Comments: 4878
1455. blsealevel 5:00 PM GMT on August 08, 2011    
Quoting Patrap:
Its first run,,was Gustav and it went really well here.


Nice and the 3D art work will look cool around the city too.
Giving direction and education to the masses.
Member Since: August 23, 2008 Posts: 0 Comments: 1916
1456. reedzone 5:02 PM GMT on August 08, 2011    
12Z GFS develops 92L
Member Since: July 1, 2008 Posts: 13 Comments: 7249
1457. JLPR2 5:04 PM GMT on August 08, 2011    
Mid-level circulation finally moved WSW and sort of aligned with the LLC, 91L is better structurally, doing poorly convection-wise.

Member Since: September 4, 2007 Posts: 7 Comments: 7528
1458. stillwaiting 5:05 PM GMT on August 08, 2011    
i wouldnt call troughing over the nw gom a classic august pattern,that wouldbe ridging off the east coast of fl
Member Since: October 5, 2007 Posts: 20 Comments: 4970
1459. CybrTeddy 5:08 PM GMT on August 08, 2011    
12z GFS does develop 92L, but shows it developing after 50W, this is probably if 92L does develop where it would try to develop.
Member Since: July 8, 2005 Posts: 255 Comments: 20632
1460. CaicosRetiredSailor 5:09 PM GMT on August 08, 2011    
For those with a need to track something in the tropics...

Nyad headed toward Key West:

http://edition.cnn.com/interactive/2011/07/specia ls/map.diana.nyad/index.html
Member Since: July 12, 2007 Posts: 0 Comments: 5250
1461. stillwaiting 5:12 PM GMT on August 08, 2011    
****ne gom
Member Since: October 5, 2007 Posts: 20 Comments: 4970
1462. JLPR2 5:13 PM GMT on August 08, 2011    
Quoting CybrTeddy:
12z GFS does develop 92L, but shows it developing after 50W, this is probably if 92L does develop where it would try to develop.


That's the strongest the GFS has ever showed 92L; but nah... It should drop it on the next run. XD
Member Since: September 4, 2007 Posts: 7 Comments: 7528
1463. beell 5:13 PM GMT on August 08, 2011    
Kinda hard to say if it is the "original" 92L that develops in the 12Z. And in a practical sense it probably does not matter.

A strong monsoonal gyre in place off the coast of Africa-which accounts for the nearly stationary movement in the model at first. At least a piece of the wave heads NW followed by another development farther south. Might best be viewed at 700mb.

But it does bring something out of the confusion (at least mine) headed west.
Member Since: September 11, 2007 Posts: 126 Comments: 13068
1464. Hattie 5:15 PM GMT on August 08, 2011    
Hi everyone. If you run the loop from MIMIC TPW, it look like 92 is trying to get going... http://tropic.ssec.wisc.edu/real-time/mimic-tpw/na tl/main.html
Member Since: September 29, 2007 Posts: 0 Comments: 4
1465. Grothar 5:17 PM GMT on August 08, 2011    
Quoting reedzone:
12Z GFS develops 92L


I can't find it reed, What link are you using?
Member Since: July 17, 2009 Posts: 58 Comments: 19661
1466. blsealevel 5:18 PM GMT on August 08, 2011    
ohhh Ummm well maybe nothing but this just dont look right.

Link
Member Since: August 23, 2008 Posts: 0 Comments: 1916
1467. JLPR2 5:21 PM GMT on August 08, 2011    
Quoting blsealevel:
ohhh Ummm well maybe nothing but this just dont look right.

Link


Its been naked since yesterday, would be more interesting if it had convection closeby.
Member Since: September 4, 2007 Posts: 7 Comments: 7528
1468. navarch 5:21 PM GMT on August 08, 2011    
Quoting blsealevel:
ohhh Ummm well maybe nothing but this just dont look right.

Link


Only thing I can gather is a major pole shift...
Member Since: August 21, 2009 Posts: 0 Comments: 10
1469. RukusBoondocks 5:24 PM GMT on August 08, 2011    
How come we have 92 with no yellow cirle? nhc doesnt even mention it
Member Since: February 13, 2011 Posts: 0 Comments: 294
1470. beell 5:25 PM GMT on August 08, 2011    
Quoting blsealevel:
ohhh Ummm well maybe nothing but this just dont look right.

Link


No it doesn't. First 7 frames must be out of wack as far as time and date stamp. No naked swirl. Added: Or just a floater shift.
: - )
Member Since: September 11, 2007 Posts: 126 Comments: 13068
1471. reedzone 5:27 PM GMT on August 08, 2011    
Quoting Grothar:


I can't find it reed, What link are you using?

Link
Member Since: July 1, 2008 Posts: 13 Comments: 7249
1472. Hattie 5:27 PM GMT on August 08, 2011    
Guys, this is a test.I am not sure if my posts are posting...Could somebody please let me know if they see this.
Member Since: September 29, 2007 Posts: 0 Comments: 4
1473. washingtonian115 5:28 PM GMT on August 08, 2011    
I hope you all know what ruckusboondocks means....it's not a very nice character off of the show...Anywho still no circle for 92L?.
Member Since: August 14, 2010 Posts: 5 Comments: 11184
1474. Neapolitan 5:28 PM GMT on August 08, 2011    
Member Since: November 8, 2009 Posts: 4 Comments: 11302
1475. klew136 5:31 PM GMT on August 08, 2011    
Quoting nrtiwlnvragn:


Link


good article I learn something new on here everyday!!
Member Since: September 5, 2008 Posts: 0 Comments: 130
1476. blsealevel 5:32 PM GMT on August 08, 2011    
Quoting JLPR2:


Its been naked since yesterday, would be more interesting if it had convection closeby.


That would help, also looking at watervapor
shows its drifting on the outer edge of the massive amount of dry air to its east side and the west to east winds have some plans for it later too.

Also whats going on in the Carib, developing ULL or something?
Member Since: August 23, 2008 Posts: 0 Comments: 1916
1477. blsealevel 5:34 PM GMT on August 08, 2011    
Quoting Hattie:
Guys, this is a test.I am not sure if my posts are posting...Could somebody please let me know if they see this.


Yep
Member Since: August 23, 2008 Posts: 0 Comments: 1916
1478. klew136 5:36 PM GMT on August 08, 2011    
Quoting stillwaiting:
i wouldnt call troughing over the nw gom a classic august pattern,that wouldbe ridging off the east coast of fl


AS USUAL...FORECAST UNCERTAINTY INCREASES IN THE LONG TERM PORTION
OF THE FORECAST. NUMERICAL MODEL GUIDANCE DEPICTS THE AFOREMENTIONED
MID LEVEL TROUGH OF LOW PRESSURE SAGGING SOUTHWARD OVER SOUTH
FLORIDA AND POSSIBLY THE FLORIDA KEYS THURSDAY...BEFORE EVENTUALLY
DISSOLVING LATE THIS WEEK OR EARLY THIS WEEKEND. IF THIS SITUATION
COMES INTO FRUITION...WHICH IS HIGHLY ABNORMAL FOR AUGUST...RAIN
CHANCES WILL END UP HIGHER THAN ADVERTISED.
Member Since: September 5, 2008 Posts: 0 Comments: 130
1480. Seawall 6:09 PM GMT on August 08, 2011    
Quoting Hattie:
Guys, this is a test.I am not sure if my posts are posting...Could somebody please let me know if they see this.


See ya!
Member Since: September 8, 2001 Posts: 1 Comments: 401

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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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