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#1008206 - 27/08/2011 20:51 Re: 2011 Atlantic Hurricane Season [Re: Big_Pete]
Dawgggg Offline
Meteorological Motor Mouth

Registered: 25/03/2007
Posts: 23684
Loc: Townsville
Sustained winds at 150kmhr....

Pete NYC is more worried about the storm surge, which is a pretty big threat.
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#1008207 - 27/08/2011 20:54 Re: 2011 Atlantic Hurricane Season [Re: Big_Pete]
vpprt Offline
Weather Freak

Registered: 21/12/2010
Posts: 231
Loc: Australia
Its a part of the world that doesn't receive threats from tropical systems that often. No government wants to be caught out from natural disasters, especially after the fallout from Katrina.

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#1008208 - 27/08/2011 20:55 Re: 2011 Atlantic Hurricane Season [Re: Dawgggg]
Dawgggg Offline
Meteorological Motor Mouth

Registered: 25/03/2007
Posts: 23684
Loc: Townsville
I consider 150kmhr sustained winds still quite significant. Irene being such a large system still has the potential for massive storm surge ( which is the no.1 killer in hurricanes, roofs being unroofed, mobile homes destroyed, massive power loss etc. etc.
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#1008210 - 27/08/2011 20:59 Re: 2011 Atlantic Hurricane Season [Re: Dawgggg]
Big_Pete Offline
Weatherzone Addict

Registered: 19/12/2004
Posts: 1955
Loc: Perth
Sustained winds of 150km/h, sorry I didn't read the advice threat properly. I though they meant max wind gusts possible of 150km/h.

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#1008220 - 27/08/2011 22:13 Re: 2011 Atlantic Hurricane Season [Re: Big_Pete]
cold@28 Offline
Weatherzone Addict

Registered: 07/02/2011
Posts: 2419
Loc: Chillagoe
Sydney has experienced the tail end of a cyclone - I remember 1973 or 1974 Newport Beach was a mess, and sand covered Barrenjoey Road to the north of the shopping centre. http://www.bom.gov.au/cyclone/history/nsw.shtml



Edited by coldat28degrees (27/08/2011 22:19)

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#1008243 - 28/08/2011 05:22 Re: 2011 Atlantic Hurricane Season [Re: cold@28]
Cloudz Offline
Weatherzone Addict

Registered: 16/10/2010
Posts: 1647
Loc: Southport QLD
Irene has made landfall in North Carolina, but is still making a b-line for NYC, albeit in a weakened state. Different reports have sustained winds still up to 140km/h and several storm related deaths have been reported.

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#1008258 - 28/08/2011 07:53 Re: 2011 Atlantic Hurricane Season [Re: Cloudz]
Inclement Weather Offline
Meteorological Motor Mouth

Registered: 07/03/2006
Posts: 5225
Loc: Diamond Valley
Regarding Irene's impending impact on NYC, the NHC made this interesting observation in its recent discussion of the cyclone:

MORE SO THAN WITH MOST STORMS...THE WINDS WITH IRENE INCREASE
SHARPLY WITH HEIGHT ABOVE THE SURFACE. AS IRENE MOVES THROUGH
AREAS WITH HIGH-RISE STRUCTURES...THESE STRUCTURES WILL EXPERIENCE
WINDS SIGNIFICANTLY STRONGER THAN INDICATED BY THE ADVISORY
INTENSITY. WINDS AT THE 30-STORY LEVEL WILL LIKELY BE 20 PERCENT
HIGHER THAN AT THE SURFACE...AND WINDS 80-100 STORIES UP COULD BE
ABOUT 30 PERCENT HIGHER THAN AT THE SURFACE.

This will test a lot of structures of height in Manhattan and the wind behaviour creating a funnelling effect through canyons of skyscrapers should also be watched.
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#1008259 - 28/08/2011 07:56 Re: 2011 Atlantic Hurricane Season [Re: Inclement Weather]
Dawgggg Offline
Meteorological Motor Mouth

Registered: 25/03/2007
Posts: 23684
Loc: Townsville
What are some structures built to withstand, anyone know?
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#1008279 - 28/08/2011 10:07 Re: 2011 Atlantic Hurricane Season [Re: Dawgggg]
Cloud Mother Offline
Weather Freak

Registered: 11/12/2007
Posts: 689
Loc: Taree NSW
Have just been given this link by a friend in the States. Irene She is one massive storm. Friend living in Long Island is sticking it out. Up high on a cliff and should be safe
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#1008280 - 28/08/2011 10:07 Re: 2011 Atlantic Hurricane Season [Re: Dawgggg]
Ruckle Offline
Meteorological Motor Mouth

Registered: 03/08/2005
Posts: 6318
Loc: Woodend VIC 579m ASL - where w...
Still looks like biggest impact over coming days maybe flooding from this storm. Some parts of NEw England have had a bit of rain of late so depending on where the stripe of 100 to 200mm rainfalls it might be a bit messy..

The 2315Z satellite seems to show some dry air wrapping round from the land side?
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#1008285 - 28/08/2011 10:46 Re: 2011 Atlantic Hurricane Season [Re: Ruckle]
Colin Maitland Offline
Weatherzone Addict

Registered: 01/09/2009
Posts: 2422
Loc: North Brisbane ( Bracken Ridge...
Latest Sat imagery of Irene.

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#1008290 - 28/08/2011 11:07 Re: 2011 Atlantic Hurricane Season [Re: Colin Maitland]
Dawgggg Offline
Meteorological Motor Mouth

Registered: 25/03/2007
Posts: 23684
Loc: Townsville
Ec now picking up another strong hurricane moving west from the Atlantic towards the East Coast of america. I have not checked upper conditions yet though.
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#1008296 - 28/08/2011 11:55 Re: 2011 Atlantic Hurricane Season [Re: Dawgggg]
Inclement Weather Offline
Meteorological Motor Mouth

Registered: 07/03/2006
Posts: 5225
Loc: Diamond Valley
I've had a look at EC on that one Trav. Yes, it looks like a classic Cape Verde hurricane riding a subtropical ridge all the way across the Atlantic. Upper conditions look favourable until it gets to around Bermuda where any amplifying mid-level trough may sling it on a re-curvature towards the NE out of harm's way. However, if that doesn't happen, the east coast of the USA looks again to be in the firing line. Certainly a long way to go yet before this North Atlantic season is over.
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#1008297 - 28/08/2011 12:05 Re: 2011 Atlantic Hurricane Season [Re: Inclement Weather]
Dawgggg Offline
Meteorological Motor Mouth

Registered: 25/03/2007
Posts: 23684
Loc: Townsville
Thanks mate, i was gonna have a look tonight as i was gonna wait till tonights run. The good old africa special, isnt it amazing how far these things can travel across the atlantic. Its really really interesting !!!!
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#1008306 - 28/08/2011 13:08 Re: 2011 Atlantic Hurricane Season [Re: Dawgggg]
Inclement Weather Offline
Meteorological Motor Mouth

Registered: 07/03/2006
Posts: 5225
Loc: Diamond Valley
Interesting Trav, the NHC have picked up on some thunderstorm activity showing early signs of organisation off the West Coast of Africa (Cape Verde) in its latest advisories. They forecast further development and westward movement over the coming days. This is obviously the system that EC has picked up. It will be interesting to monitor the models over the next few runs. We could be witnessing the embryonic stages of what may eventually give birth to Hurricane Jose.
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#1008314 - 28/08/2011 13:58 Re: 2011 Atlantic Hurricane Season [Re: Inclement Weather]
Ruckle Offline
Meteorological Motor Mouth

Registered: 03/08/2005
Posts: 6318
Loc: Woodend VIC 579m ASL - where w...
Is Irene still a tropical system? I know its over the water and on Dover radar you can see a circulation but surface map on NWS site has cold front from its SW side http://www.hpc.ncep.noaa.gov/sfc/namussfcwbg.gif

Looks pretty dry on S and W side on satellite as well.
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#1008315 - 28/08/2011 14:04 Re: 2011 Atlantic Hurricane Season [Re: Ruckle]
Mick10 Offline
Weatherzone Moderator

Registered: 02/11/2001
Posts: 25272
Loc: Kirwan, Townsville - NQld.
still a cat1 hurricane ruckle, NHC says it should remain a weak hurricane until landfall on monday (our time).
imagine the wind gusts in those NYC high rise buildings? incredible.
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#1008320 - 28/08/2011 14:37 Re: 2011 Atlantic Hurricane Season [Re: Mick10]
Inclement Weather Offline
Meteorological Motor Mouth

Registered: 07/03/2006
Posts: 5225
Loc: Diamond Valley
Irene is looking a bit like one of our ECLs atm. Most of the rain and wind is to its north and east side while it's drying out to its south. In fact, its LLCC is now exposed with convection sheared off to its north.
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#1008322 - 28/08/2011 14:39 Re: 2011 Atlantic Hurricane Season [Re: Mick10]
Ruckle Offline
Meteorological Motor Mouth

Registered: 03/08/2005
Posts: 6318
Loc: Woodend VIC 579m ASL - where w...
Hmmm, SPC notes on the tornado watch a few hours back suggest otherwise.

DISCUSSION...HRCN IRENE EXPECTED TO CONTINUE SLOWLY NNEWD THROUGH
EARLY SUN. SATELLITE AND THERMAL CONSIDERATIONS SUGGEST THAT THE
SYSTEM IS BEGINNING TO UNDERGO EXTRATROPICAL TRANSITION. COUPLED
WITH THE FACT THAT THE CIRCULATION CENTER HAS NOW MOVED BACK OVER
OPEN WATER...ASSOCIATED WIND FIELD EXPECTED TO REMAIN AMPLY STRONG
TO SUPPORT LOW LVL ROTATION IN SEMI-DISCRETE SHOWERS/TSTMS FORMING
WITHIN AXIS OF WEAK SFC-BASED INSTABILITY ARCING NW FROM THE
ATLANTIC INTO THE NE QUADRANT OF THE SYSTEM. THE GREATEST TORNADO
RISK IN THE NEAR TERM APPEARS TO BE ALONG THE SRN JERSEY SHORE AND
OVER LWR DE BAY. THE THREAT SHOULD EDGE NWD INTO CNTRL NJ AND INTO
THE NYC AREA/SRN LONG ISLAND LATER TNGT.

Still it looks like a hurricane on radar to me (lol , not that that counts)

Tornado threat in sthern New England , SE NY state is pretty high in the next few hours.
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#1008329 - 28/08/2011 15:31 Re: 2011 Atlantic Hurricane Season [Re: Ruckle]
Rainy Night Offline
Weatherzone Addict

Registered: 01/02/2004
Posts: 4267
Loc: Jindalee, Brisbane
g'day Ruckle .. unfortunately, the radar link you provided there is for Australian radar ..

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