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Hurricane Emily (Live Thread, Part II)
NHC-NOAA ^ | 16 July 2005 | NHC

Posted on 07/16/2005 1:33:53 PM PDT by NautiNurse

Hurricanes Emily and Dennis are the strongest July storms in recorded history for the Atlantic hurricane basin...

Hurricane Emily resources--the links are self-updating for handy reference:

NHC Hurricane Public Advisory Updates Currently published every three hours 5A, 8A, 11A, 2P, 5P, etc. ET.

NHC Hurricane Discussion Updates Published every 6 hours 5A, 11A, 5P, 11P ET

Storm Floater IR Loop Little boxes at top of image: lat/lon, and Trop Fcst Pts--click 'em.

Caribbean IR Loop

Caribbean Visible Loop (Only works during daylight hours)

Storm Floater Sat Both loop and latest image

Western Caribbean Bouy Data

Jamaica Weather Has a few still radar images

Grand Cayman Weather

Cozumel Weather

Cancun Weather

Cancun Radar Very Slow Load

Another Cancun Radar another Very Slow Load

Hurricane Track Forecast

Hurricane Model Projections

Emily Forecast Track Archive Loop Great for reviewing the NHC 3 day and 5 day historic track positions



Some more resources:

Hurricane City

Global Satellite Imagery Amazing view of the world (Broadband)

Water Vapor SatelliteAnother colorful loop for broadband

Central Florida Hurricane Center offers a variety of info

Another colorful IR Satellite loop


The Saffir-Simpson Scale. Source: Hurricane Categories
Category Wind Speed Barometric
Pressure
Storm Surge Damage Potential
1
(weak)
75 - 95 mph
65 - 82 kts
33 - 42 m/s
> 28.94 in. Hg
> 980.0 mb
> 97.7 kPa
4.0 - 5.0 ft.
1.2 - 1.5 m
minimal damage to vegetation
2
(moderate)
96 - 110 mph
83 - 95 kts
43 - 49 m/s
28.50 - 28.93 in. Hg
965.1 - 979.7 mb
96.2 - 97.7 kPa
6.0 - 8.0 ft.
1.8 - 2.4 m
moderate damage to houses
3
(strong)
111 - 130 mph
96 - 113 kts
50 - 58 m/s
27.91 - 28.49 in. Hg
945.1 - 964.8 mb
96.2 - 97.7 kPa
9.0 - 12.0 ft.
2.7 - 3.7 m
extensive damage to small buildings
4
(very strong)
131 - 155 mph
114 - 135 kts
59 - 69 m/s
27.17 - 27.90 in. Hg
920.1 - 944.8 mb
91.7 - 94.2 kPa
13.0 - 18.0 ft.
3.9 - 5.5 m
extreme structural damage
5
(devastating)
> 155 mph
> 135 kts
> 70 m/s
< 27.17 in Hg
< 920.1 mb
< 91.7 kPa
> 18.0 ft
> 5.5 m
catastrophic building failures possible


Hurricane Emily Live Thread, Part I


TOPICS: Mexico; US: Texas
KEYWORDS: emily; hurricane; hurricaneemily; tropical; weather
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To: No Blue States

eventually yes we may....but we will see....


281 posted on 07/17/2005 7:36:08 AM PDT by MikefromOhio (Tancredo is sinking....give me a brick.....)
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To: dc-zoo

crap according to the below it hasn't weakened....son of a....


282 posted on 07/17/2005 7:36:43 AM PDT by MikefromOhio (Tancredo is sinking....give me a brick.....)
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To: neutrality

Wow, that's getting out the 11 am advisory pretty quick!


283 posted on 07/17/2005 7:41:18 AM PDT by Dog Gone
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To: Dog Gone
Hurricane Emily Discussion Number 27

Statement as of 11:00 am EDT on July 17, 2005

 
satellite imagery and reports from an Air Force Reserve hurricane
hunter aircraft indicate that Emily has weakened slightly over the
past 12 hr.  The eye has become less distinct in satellite imagery
and the overall cloud pattern has become a little ragged.  The
aircraft indicates the central pressure has risen to 946 mb...with
maximum 700 mb flight-level winds of 142 kt in the northeastern
quadrant.  The initial intensity will be 130 kt.

The initial motion remains 290/17.  There is little change to either
the forecast philosophy or forecast track.  Emily remains on the
south side of an east-west low/mid level ridge extending from the
Atlantic across the northern Gulf Coast to Texas.  Large-scale
models forecast the ridge to generally persist...with a weakness
perhaps developing in 36-48 hr over the western Gulf Coast as a
mid-latitude shortwave trough passes to the north.  Track model
guidance is in good agreement on a general west-northwest motion
for 36-48 hr...followed by a gradual turn toward the west as the
weakness in the ridge fills.  Whether the weakness will be strong
enough to allow a more northward track than currently forecast is
questionable.  However...the track after 36 hr is along the
northern side of the guidance envelope.

It is unclear whether the weakening that has occurred is due to an
internal cycle or external forcing.  A recent SSM/I overpass does
not show concentric eyewalls...and while cirrus outflow has
diminished over the southern semicircle there are no obvious signs
of shear at this time.  Emily continues to generate cold convective
tops...so there is still potential for re-intensification or
fluctuations before landfall in Yucatan.  Emily should weaken over
Yucatan... then re-intensify into a major hurricane over the
western Gulf of Mexico.  The cyclone should then weaken quickly
after landfall in northeastern Mexico and dissipate by 120 hr over
the mountains of northern Mexico.

 
Forecaster Beven

 

 

forecast positions and Max winds

 
initial      17/1500z 18.6n  83.6w   130 kt
 12hr VT     18/0000z 19.5n  85.9w   130 kt
 24hr VT     18/1200z 20.9n  88.9w   110 kt...inland
 36hr VT     19/0000z 22.2n  91.6w    85 kt...over water
 48hr VT     19/1200z 23.1n  94.2w   100 kt
 72hr VT     20/1200z 24.5n  99.0w    75 kt...inland
 96hr VT     21/1200z 24.5n 104.0w    20 kt...inland dissipating
120hr VT     22/1200z...dissipated

284 posted on 07/17/2005 7:56:39 AM PDT by NautiNurse ("I'd rather see someone go to work for a Republican campaign than sit on their butt."--Howard Dean)
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To: NautiNurse

Good morning, and thanks for the interesting links. Not certain how to read them, though. Is the green area the ridge that is supposed to develop westward towards Texas? Looking at their current map (from the time they made the projections) http://www.cdc.noaa.gov/map/images/ens/z500anom_f000_usbg.gif suggests that it is already in (at least a weaker edge portion) that ridge. So their projection of it continuing back into central Mexico is really based on an area of lower pressure forming in Mexico and connecting with a similar area that is over central Texas, which then closes or move south out of Texas? Or am I way off in interpreting those maps?


285 posted on 07/17/2005 7:57:00 AM PDT by Diddle E. Squat
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To: NautiNurse
Track model guidance is in good agreement on a general west-northwest motion for 36-48 hr...followed by a gradual turn toward the west as the weakness in the ridge fills.

Whether the weakness will be strong enough to allow a more northward track than currently forecast is questionable.

286 posted on 07/17/2005 8:18:20 AM PDT by No Blue States
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To: NautiNurse

This SST is two days old even so I see as it goes past the yuk pen it will be in warmer waters thus an increase.

http://www.weatherimages.org/data/imag142.html
.


287 posted on 07/17/2005 8:25:37 AM PDT by Tigen (Live in peace or rest in peace!)
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To: Tigen
You can see on that map how Cindy and Dennis have sucked the heat out of the water south of the Florida panhandle. If Emily continues her trek across the lower Gulf, it may very well be a blessing to us later in the season.
288 posted on 07/17/2005 8:38:18 AM PDT by SouthTexas
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To: Diddle E. Squat

The black one is heading towards San Diego!


289 posted on 07/17/2005 8:41:04 AM PDT by dakine
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To: Diddle E. Squat
Hi again--I think this will give you a better view. In the Water Vapor loop, at the top of the image, click on MSLP (4) and Trop Fcst Pts. This will illustrate what is guiding the system.
290 posted on 07/17/2005 8:52:21 AM PDT by NautiNurse ("I'd rather see someone go to work for a Republican campaign than sit on their butt."--Howard Dean)
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To: NautiNurse

Looks like the famed ridge is doing its work already... if this track continues today, it's almost certain TX is going to be safe.

http://cimss.ssec.wisc.edu/tropic/real-time/atlantic/winds/wg8dlm5.html


291 posted on 07/17/2005 9:03:25 AM PDT by nwctwx (Everything I need to know, I learned on the Threat Matrix)
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To: nwctwx

If you go to that link, and cycle through the -3 hour, + 3 hour, you can see the ridge building west. Steering currents that were favorable for a S. TX landfall now steer into N. MX.


292 posted on 07/17/2005 9:08:18 AM PDT by nwctwx (Everything I need to know, I learned on the Threat Matrix)
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To: nwctwx

Cozumel appears to be in a precarious position.


293 posted on 07/17/2005 9:11:25 AM PDT by NautiNurse ("I'd rather see someone go to work for a Republican campaign than sit on their butt."--Howard Dean)
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To: NautiNurse

Yeah, they will probably see at least the outer fringe of the northern eyeall. Should be going downhill there soon.


294 posted on 07/17/2005 9:23:02 AM PDT by nwctwx (Everything I need to know, I learned on the Threat Matrix)
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To: nwctwx

According to my calculations (a straight piece of paper against my screen during the goes floater loop) Cozumel might get a direct hit if the path stays the same.

I hope a wobble spares them.


295 posted on 07/17/2005 10:13:57 AM PDT by No Blue States
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To: No Blue States
It looks like you might be right... I just stepped in from morning services, and didn't look at much before typing that.

Once the system gets close to the Yucatan, the friction of land may also pull her a tad north. This normal frictional pull may be offset slightly by the fact that the heaviest convection is currently in the S circle of the storm, but I think it will happen nonetheless.

Either way, it's not going to be a pretty time of it for the island... I believe we are seeing the first signs of some re-strengthening now (though 2pm may be below 150 - the pressure doesn't support it). We should see this come in as a strengthening (or leveled off)storm though... close to 150. She still has an outside shot at hitting category 5 this afternoon, but that could be tough.
296 posted on 07/17/2005 10:22:59 AM PDT by nwctwx (Everything I need to know, I learned on the Threat Matrix)
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To: No Blue States

"According to my calculations (a straight piece of paper against my screen...)"

How many people here are guilty of this?!?!


297 posted on 07/17/2005 10:29:04 AM PDT by Miztiki (Pearland, TX (just southeast of Houston))
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To: Miztiki

Me but I check my calculations against TWC:') It looks like Brownsville might dodge the bullet but I'm already feeling the effects. I was cleaning up and sorting valuables and dropped a picture frame and cut my foot and leg:'(


298 posted on 07/17/2005 10:36:54 AM PDT by CindyDawg
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To: Miztiki; No Blue States
"According to my calculations (a straight piece of paper against my screen...)"

How many people here are guilty of this?!?!

Raising hand. :)

299 posted on 07/17/2005 10:38:31 AM PDT by SouthTexas
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To: CindyDawg

It will be interesting to see how the Yucatan crossing affects Emilys strength and direction.

I hope you foot is ok!


300 posted on 07/17/2005 10:39:14 AM PDT by No Blue States
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