ATL: IGOR - Ex Hurricane - Discussion

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Nimbus
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#41 Postby Nimbus » Wed Sep 08, 2010 6:00 am

Two waves with vorticity would pull moisture up from the ITCZ. Its pretty dry out in the mid atlantic so otherwise I can't see how a system would fair any better than Gaston or Earl?
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#42 Postby ColinDelia » Wed Sep 08, 2010 6:15 am

Yeah pretty dry air out there. One thing is that there is currently a huge moisture envelope moving west with 91L.
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Re: ATL: INVEST 91L - Discussion

#43 Postby Blown Away » Wed Sep 08, 2010 6:31 am

Image
TAFB suggesting 91L will be in a position to recurve east of the islands.
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Re: ATL: INVEST 91L - Discussion

#44 Postby ColinDelia » Wed Sep 08, 2010 6:36 am

Image
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Re: ATL: INVEST 91L - Discussion

#45 Postby cycloneye » Wed Sep 08, 2010 6:40 am

70%

TROPICAL WEATHER OUTLOOK
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
800 AM EDT WED SEP 8 2010

FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...

THE HYDROMETEOROLOGICAL PREDICTION CENTER IS ISSUING PUBLIC
ADVISORIES ON TROPICAL DEPRESSION HERMINE...CURRENTLY LOCATED
INLAND ABOUT 150 MILES WEST-SOUTHWEST OF DALLAS TEXAS.

SHOWER AND THUNDERSTORM ACTIVITY IS CONTINUING TO ORGANIZE NEAR A
WELL-DEFINED LOW PRESSURE AREA LOCATED JUST SOUTH OF THE
SOUTHERNMOST CAPE VERDE ISLANDS. STRONG UPPER-LEVEL WINDS OVER
THIS SYSTEM ARE EXPECTED TO DECREASE OVER THE NEXT COUPLE OF
DAYS...AND THIS LOW HAS THE POTENTIAL TO BECOME A TROPICAL
DEPRESSION OVER THE NEXT DAY OR SO. THERE IS A HIGH CHANCE...70
PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE
NEXT 48 HOURS AS IT MOVES WESTWARD AT 10 TO 15 MPH.


THE REMNANTS OF GASTON...LOCATED A COUPLE HUNDRED MILES SOUTHEAST OF
THE DOMINICAN REPUBLIC...ARE PRODUCING DISORGANIZED SHOWER AND
THUNDERSTORM ACTIVITY. DEVELOPMENT OF THIS SYSTEM IS NOT EXPECTED
AS IT MOVES WESTWARD AT 10 TO 15 MPH. THERE IS A LOW CHANCE...
NEAR 0 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE AGAIN
DURING THE NEXT 48 HOURS.


ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE
NEXT 48 HOURS.

$$
FORECASTER BLAKE

Image
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Re: ATL: INVEST 91L - Discussion

#46 Postby ColinDelia » Wed Sep 08, 2010 6:52 am

Shear forecast from 6z SHIPS (which was already 6 hours ago)

28 knots and decreasing to 17 knots in 24 hours and then 10 knots in 48 hours before increasing again to 20 knots in 84 hours and then
rapidly decreasing after that.
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#47 Postby HURAKAN » Wed Sep 08, 2010 7:20 am

Image

latest ... exposed
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#48 Postby KWT » Wed Sep 08, 2010 7:25 am

Yeah exposed, easterly winds are quite strong in the lower levels but its got strong low level circulation clearly...and therefore no reason why this doesn't develop...

Got a feeling this will be Hurricane number 4 for the season next week.
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#49 Postby canes101 » Wed Sep 08, 2010 7:25 am

Models are defiantly developing the disturbance just south of the islands and NOT the one just exiting the coast?
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#50 Postby KWT » Wed Sep 08, 2010 7:28 am

It'll probably end up being a fusion of the two areas that develop I'd suspect canes101.
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#51 Postby canes101 » Wed Sep 08, 2010 7:30 am

The name Igor just sounds like it wants to be big and ugly no?
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Re: ATL: INVEST 91L - Discussion

#52 Postby cycloneye » Wed Sep 08, 2010 7:37 am

12z Best Track

AL, 91, 2010090812, , BEST, 0, 137N, 233W, 30, 1005, DB


Moving at 260 degrees.
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#53 Postby KWT » Wed Sep 08, 2010 7:38 am

Winds upto 30kts already, the circulation is strong but its a little exposed at the moment, probably the shear will ease with time though
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Re:

#54 Postby alan1961 » Wed Sep 08, 2010 7:52 am

canes101 wrote:The name Igor just sounds like it wants to be big and ugly no?


Looks like he's ready to flip his switch :lol:

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Re: ATL: INVEST 91L - Discussion

#55 Postby cycloneye » Wed Sep 08, 2010 7:56 am

Moving at 260 degrees.

LATCUR = 13.7N LONCUR = 23.3W DIRCUR = 260DEG SPDCUR = 7KT
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Re:

#56 Postby canes101 » Wed Sep 08, 2010 8:11 am

KWT wrote:It'll probably end up being a fusion of the two areas that develop I'd suspect canes101.


New Sat image just came out (uploaded instead of hot linking so image wouldn't change) and it defiantly looks like they will in fact "fuse" together to develop IMO
Image

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Last edited by canes101 on Wed Sep 08, 2010 8:18 am, edited 1 time in total.
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Re: ATL: INVEST 91L - Discussion

#57 Postby cycloneye » Wed Sep 08, 2010 8:14 am

Sandy, I cant have access to the site that has these images but I know you can. :)

Image
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#58 Postby HURAKAN » Wed Sep 08, 2010 8:14 am

Image

Latest
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Re: ATL: INVEST 91L - Discussion

#59 Postby wxman57 » Wed Sep 08, 2010 8:24 am

Little doubt this will be Igor. It'll probably take 2-3 days to get organized and upgraded. But it's quite far north for so far east. Fortunately, systems that far north near the CV Islands rarely enter the Caribbean. Just the same, I'd keep an eye on it if I was in the NE Caribbean.
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Re: ATL: INVEST 91L - Discussion

#60 Postby cycloneye » Wed Sep 08, 2010 8:25 am

:uarrow: Almost a TD. Thank you for the larger image.
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