Dr. Jeff Masters' WunderBlog

Tropical Storm Emily remains weak with roadblocks ahead
Posted by: Dr. Jeff Masters, 6:14 PM GMT on August 02, 2011 +20
Tropical Storm Emily took a moment to pause this morning, with no forward motion to speak of in the 11am EDT advisory from the National Hurricane Center, who say Emily might have been reorganizing. Emily eventually picked up some speed, and was moving west at 12 mph with maximum sustained winds of 45 mph in the 2pm EDT advisory. Satellite loops suggest that the storm has improved since yesterday, with strong thunderstorm activity surrounding the center of circulation accompanied by moderately strong outflow at higher levels. Recent satellite estimates of circulation show some consolidation at low levels (850mb), but weak circulation at higher levels (500mb). Despite the organized presentation on satellite, Hurricane Hunters found a generally disorganized storm this morning, with multiple potential centers. The lowest pressure that the Hunters found was 1007mb. Wind shear remains strong to the north of the storm, and this feature extends west across Puerto Rico and Hispaniola. Dry air, which has been lingering to the north of the system for the past few days, has begun to wrap around the northwest side of the storm. This, along with high wind shear along its potential track, could delay or prevent further intensification over the life of the storm. Another Hurricane Hunter mission is on its way to Emily now.


Figure 1. Visible satellite of Tropical Storm Emily at 1pm EDT.

Forecast for Tropical Storm Emily
The official forecast for Emily is a track toward the west-northwest over the next day and a half, after which it will make a turn to the northwest, and by Saturday, to the north. Although the National Hurricane Center has been shifting the forecast track to the east over the past few advisories, the U.S. coastline is still within the cone of uncertainty, and if we know something about this storm, it's that the forecast is uncertain. The CMC continues to be the western boundary of the model track forecasts, bringing Emily over Cuba and into the far eastern Gulf of Mexico. Today, on the eastern boundary of potential tracks fall the HWRF and the GFDL, which forecast Emily to cross over Hispaniola on a north-northwest trajectory, skirting the eastern edge of the Bahamas, and turning northeast before ever making connection with the U.S. coast. The Hurricane Center's official track follows the model consensus, and is the most likely track. Today, Emily is not forecast to strengthen into a hurricane within the next five days by the National Hurricane Center nor most of the models. Consensus seems to be that the storm will max out at a moderate to strong tropical cyclone, but this is assuming the storm can survive the wrath of Hispaniola.

Surviving Hispaniola

Hispaniola is somewhat notorious for being a major disruptor to tropical cyclones that dare cross over it. Since 1950, around two dozen tropical cyclones have crossed Hispaniola near where the National Hurricane Center is forecasting that Emily will pass over. A handful of these cyclones were of similar intensity with a track that was similar to Emily's forecast by various models, and although some went on to intensify (the warm Gulf of Mexico waters can be quite healing) many were fatally disrupted by the second largest island in the Caribbean.


Figure 2. Tropical cyclones that have crossed Hispaniola since 1950 (plotted using the NOAA Historical Hurricane Tracker).

Fay of 2008 developed in the Mona Passage on August 15th as a tropical storm. After a rough track westward over the length of Hispaniola, Fay emerged back into open water with little to no organized circulation, but managed to survive, and skirted the southern coast of Cuba for the next couple of days before turning north toward Florida. Many remember 2008's Fay as the storm that intensified and developed an eye-like feature over Florida after making landfall.

Cindy of 1993 was not as lucky in a battle with Hispaniola. Cindy developed as a tropical depression just east of the Lesser Antilles, and over the course of two days, tracked west-northwest through the Caribbean toward Hispaniola, strengthening into a tropical storm and reaching peak intensity just before landfall. Almost immediately upon landfall in the Dominican Republic, Tropical Storm Cindy deteriorated and the National Hurricane Center stopped issuing advisories on the system.

Emily of 1987 developed well east of the Lesser Antilles in late September and tracked northwest into the Caribbean, where it underwent a period of rapid intensification and was upgraded to a hurricane and then a major hurricane (category 3) just before landfall in the Dominican Republic. As the hurricane approached Hispaniola, it began deteriorating, and within 12 hours of landfall, Emily had weakened to a tropical storm and never regained its strength. Emily then took a turn to the northeast and tracked into the open Atlantic. Hurricane Katie of 1955 had a similar fate.

Angela
Categories: Hurricane
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2101. caneswatch 2:30 AM GMT on August 03, 2011    
Quoting lovemamatus:
I like Jason. Hes a kid with a little passion. Not a bad thing.


Not at all.
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2102. geepy86 2:30 AM GMT on August 03, 2011    
Quoting lovemamatus:
I like Jason. Hes a kid with a little passion. Not a bad thing.

yep
Member Since: August 19, 2008 Posts: 0 Comments: 1611
2103. BahaHurican 2:30 AM GMT on August 03, 2011    
1930. FLdewey 9:53 PM EDT on August 02, 2011

[Gives a standing ovation] THANK YOU DEWEY!!!!!
Member Since: October 25, 2005 Posts: 19 Comments: 17661
2104. serialteg 2:30 AM GMT on August 03, 2011    
Quoting tiggeriffic:


Hugo was bad A$$ too...was here for that one...and the peeps in Awendaw...they will never forget it either...one thing lots of people don't know about Hugo, is that it made it all the way to WV and still had hurricane force winds...i have family there and their weather stations clocked winds over 75mph and gusts over 90


hugo was hugo
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2105. stormpetrol 2:30 AM GMT on August 03, 2011    


Don't forget this bad dude , became a Cat 5 3 times and had the most tornados( i think) of any hurricane
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2106. Indialanticgirl 2:30 AM GMT on August 03, 2011    
Quoting JupiterFL:
Quoting JupiterFL:
Let me explain what happened as I saw it. The real Jason was doing what he always does. Another troll came in and started complaining about his posts and flagging them. He was banned. The troll then setup fake Jason screen names to suck you all in. Do you really think that Jason would use Jasonpornstar as a handle? This is the same BS they pull every year.

Jason had 5+ Accounts Orignally... Now maybe people are impersonating him.... But im sure he made a few


How would you know? Does it tell you how many accounts I have?


wow same old same old...happens every august...the classic bait and switch screen name ruse...each of them thinks they are the first to come up with the idea...yawn,,how ya doing Jupiter?
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2108. Ryuujin 2:31 AM GMT on August 03, 2011    
Is she moving west, or is she heading a bit more WNW now? Is she still south of the forecast points or almost on them? Been at work all day and have missed most of this.
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2109. WeatherNerdPR 2:31 AM GMT on August 03, 2011    
Quoting PcolaDan:
The scariest hurricane? Easy, the one barreling down towards you.

For me, it's this one:
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2110. tiggeriffic 2:31 AM GMT on August 03, 2011    
Quoting zoomiami:


Hey Tig:

My cousin and her husband lived in Charleston and evacuated. Got on I95 and headed north. Ended up they had to keep going and going, the storm was coming right behind them! Hugo was as hard on Charleston as Andrew was on South Dade.


hey ya zoo! i know Andrew was a bit more costly, but actually it came out a few years after Andrew that the main reason is due to the population of Florida... the eye hit Charleston basically...the worst quadrant hit Awendaw...more so smaller fishing communities and such...population not near what florida has...we were also lucky that hugo's forward speed was on the higher side...2mph slower and we would have been annialated
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2111. sunlinepr 2:31 AM GMT on August 03, 2011    
Anular Isabel was a beauty... and a monster... Look at the eye compared to PR...



Member Since: August 2, 2010 Posts: 19 Comments: 8447
2113. KEEPEROFTHEGATE (Mod) 2:31 AM GMT on August 03, 2011    
05L/H/E/C1
MARK
16.45N/65.63W
Member Since: July 15, 2006 Posts: 143 Comments: 40559
2114. FatPenguin 2:32 AM GMT on August 03, 2011    
Ka-boom.

That sound you hear was Emily putting up a huge tower in the last hour or so. (it's 10:30est now) Might be best convective action yet.

could mean she's found her mojo and is heading for cane status by morning.
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2115. Methurricanes 2:32 AM GMT on August 03, 2011    
Do i see a more northerly componant, or is that just a blowup of convection north of the center.
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2116. presslord 2:32 AM GMT on August 03, 2011    
Quoting pottery:

Shave half the area.
Set fire to the other half.
Stab them with an ice-pick as they run out of the flames.
Guaranteed...

Emily is STILL moving west....
Brought us a great day of blue skies and gentle breezes all day long.
I want more!


Hey kids!!!!! Listen closely to the voice of experience!!!!
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2117. HurricaneHunterJoe 2:32 AM GMT on August 03, 2011    
Quoting chevycanes:
looking at radar it looks like its trying to wrap some storms around the west side of the COC.

tha
Quoting chevycanes:
looking at radar it looks like its trying to wrap some storms around the west side of the COC.


that would be a good idea!
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2118. serialteg 2:32 AM GMT on August 03, 2011    
gatherin' an eye, i reckon

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2119. Relix 2:32 AM GMT on August 03, 2011    
Crystal clear skies in PR...

lol
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2120. caneswatch 2:32 AM GMT on August 03, 2011    
Frances was one scary looking storm.


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2121. aasmith26 2:32 AM GMT on August 03, 2011    
Quoting MeterologyStudent56:
Hurricane Andrew...

( This has to be the Scariest Looking Storm)



Just perfection, amazement. No words...Scary!
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2122. 7544 2:32 AM GMT on August 03, 2011    
anyone check the new nam run yet just asking
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2123. TropicalAnalystwx13 2:33 AM GMT on August 03, 2011    


or...

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2124. pottery 2:33 AM GMT on August 03, 2011    
Quoting koolkiddvc:


All safe and sound...its cleared out now and it cool on the outside, we can now see the stars!

Good to see you, Vinci.
Any damages to roads/bridges etc?
9" is plenty rain coming down the hill.
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2126. duajones78413 2:33 AM GMT on August 03, 2011    
checking in late. What is the latest on Emily?
Cant watch Levi's video right now. Can someone fill me in on his thoughts on Emily and how they are panning out?
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2127. WeatherNerdPR 2:33 AM GMT on August 03, 2011    
Quoting KEEPEROFTHEGATE:
05L/H/E/C1
MARK
16.45N/65.63W

Why does it say H/E/C1?
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2128. bird72 2:33 AM GMT on August 03, 2011    
Something really scary hurricane Gilbert
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2129. TropicalAnalystwx13 2:34 AM GMT on August 03, 2011    
Hurricane Allen (1980):

"The dissipating storm precipitated the end of the Heat Wave of 1980 in places like Dallas/Fort Worth, Texas, which had recorded 69 days of 100 °F (38 °C) heat."

Hopefully, this drought will end without the help of a 190 mph Category 5 hurricane making landfall in Texas.
Member Since: July 6, 2010 Posts: 89 Comments: 25314
2130. ProgressivePulse 2:34 AM GMT on August 03, 2011    
Quoting FLdewey:

Absolutely... and he's got a sense of humor, which is awesome.

Cone shift of 50miles west I say... NHC has to be conservative to minimize cone wag. (official weather term)


Hopefully they can wag some rain our way, not just the beach destroying waves that come along with it.
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2131. Bluestorm5 2:34 AM GMT on August 03, 2011    
Quoting koolkiddvc:
Hey Wunderfriends...first time poster..usual lurker just to share an image or two with you i am from St Vincent in the eastern caribbean...Emily gave us TONS of rain 5 inches in one day 4 in another over 9 inches of rain and caused flooding in some areas...take a look
The Green Circle is where i live..



Wow, and that was only when TS Emily was Invert 91L. This photos is huge bad news to Haiti as Emily will be stronger and more rain will pour there than your location. I'm glad you're safe along with island you live on.
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2132. CanesfanatUT 2:35 AM GMT on August 03, 2011    
I predict Emily will head back east, FWIW. heh
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2133. PRweathercenter 2:35 AM GMT on August 03, 2011    

Puerto Rico getting the effects of Tropical Storm Emily.
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2134. blsealevel 2:35 AM GMT on August 03, 2011    
looks like Emily stalled and displaced back east some


Link
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2135. weathermanwannabe 2:35 AM GMT on August 03, 2011    
Does Emily look like she "stalled" a little bit in the last few frame loops or just my imagination?
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2136. serialteg 2:35 AM GMT on August 03, 2011    
Quoting P451:
These three really stick out in my mind.


Mitch....




Linda....




Gilbert....



post of the day
Member Since: August 22, 2006 Posts: 2 Comments: 1966
2137. aasmith26 2:35 AM GMT on August 03, 2011    
Quoting sunlinepr:
Anular Isabel was a beauty... and a monster... Look at the eye compared to PR...





Met Isabel in person, mean woman she was. Our HD Store opened 7 days after landfall. Sure was a heck of an opening from the generator sales. That was 2 years before I worked there though.
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2138. tiggeriffic 2:35 AM GMT on August 03, 2011    
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2139. WeatherNerdPR 2:36 AM GMT on August 03, 2011    
...EUGENE REACHES MAJOR HURRICANE STATUS OVER THE OPEN PACIFIC...
8:00 PM PDT Tue Aug 2
Location: 14.7°N 111.8°W
Max sustained: 115 mph
Moving: WNW at 14 mph
Min pressure: 960 mb
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2140. weathermanwannabe 2:36 AM GMT on August 03, 2011    
Quoting blsealevel:
looks like Emily stalled and displaced back east some


Link


Same comment/same time...... :)
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2141. serialteg 2:36 AM GMT on August 03, 2011    
Quoting blsealevel:
looks like Emily stalled and displaced back east some


Link


dont fall into the jog game
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2142. PRweathercenter 2:36 AM GMT on August 03, 2011    
Quoting Relix:
Crystal clear skies in PR...

lol
yes it was worse earlier
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2144. Huracaneer 2:36 AM GMT on August 03, 2011    
What the heck is Emily doing? I can't figure out which way it's going with all the reformation of the center. As far as scary hurricanes, nothing beat the sick feeling when I saw Katrina on the weather channel bearing towards Mississippi/Louisiana, a perfect ball of destruction.
Member Since: August 21, 2007 Posts: 0 Comments: 298
2145. LillyMyrrh 2:36 AM GMT on August 03, 2011    
Quoting WeatherNerdPR:

Igor will always be my favorite.
That storm was amazing to watch. Weird how all the pretty storms get retired.


Not so weird when you realize that it's the stronger storms that become what you're calling "pretty." Personally, I'd rather see a ragged storm than a pretty one. Especially if it's heading toward any populated area.
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2146. KEEPEROFTHEGATE (Mod) 2:37 AM GMT on August 03, 2011    
Quoting WeatherNerdPR:

Why does it say H/E/C1?
yes i beleive it is approaching hurricane status or very near you will see wait and watch

lets get it on no more wasting time fooling around here
Member Since: July 15, 2006 Posts: 143 Comments: 40559
2147. TropicalAnalystwx13 2:37 AM GMT on August 03, 2011    
...EUGENE REACHES MAJOR HURRICANE STATUS OVER THE OPEN PACIFIC...

SUMMARY OF 800 PM PDT...0300 UTC...INFORMATION
----------------------------------------------
LOCATION...14.7N 111.8W
ABOUT 580 MI...935 KM SSW OF THE SOUTHERN TIP OF BAJA CALIFORNIA
MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H
PRESENT MOVEMENT...WNW OR 290 DEGREES AT 14 MPH...22 KM/H
MINIMUM CENTRAL PRESSURE...960 MB...28.35 INCHES

Member Since: July 6, 2010 Posts: 89 Comments: 25314
2148. WeatherNerdPR 2:37 AM GMT on August 03, 2011    
Quoting Relix:
Crystal clear skies in PR...

lol

The fury of EMILY! LOL
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2149. GTcooliebai 2:37 AM GMT on August 03, 2011    
But nothing beats the sheer size of this megalopolis!

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2150. PRweathercenter 2:37 AM GMT on August 03, 2011    
Quoting weathermanwannabe:
Does Emily look like she "stalled" a little bit in the last few frame loops or just my imagination?
It seems that Emily mat be trying to form a new center under the heavy convection
Member Since: July 21, 2010 Posts: 58 Comments: 916

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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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