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Official Hurricane Irene Live OBS/Discussion Part II


earthlight

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there really is no such thing as a "mandatory" evacuation. It basically means that if you choose to stay, you are abandoning protection from local authorities and are on your own and that there is no guarentee that roads/bridges in/out of your town will stay open or passable.

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Its amazing how even the inferior models, eta and rsm are also locked into the euro type solution of riding Jersey coast and then landfall from ENJ to Nassau County.

Look like 18z NAM is about to follow that as well.

I don't disagree with that solution. It seems that there was some misunderstanding on what the Euro is showing. If one runs the maps off Plymouth State for the Northeast, the Euro shows Irene centered in extreme SE PA at 48 hours (http://vortex.plymouth.edu/grbcalc2.html). That's a solution I don't agree with. A solution where Irene makes landfall anywhere in an area running from NYC to western Suffolk County is quite reasonable.

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I believe the core of the heaviest rains will be NW and N of New York City with the center coming so close to us.We will get heavy rains for a time but upstate NY NEPA and Northern Conn is going to get socked.There could be historic flooding is some of the rivers up there.

I agree with this and have been telling folks all day saying "oh will just go west to the Poconos" (including my wife and mother, lol) that it would be a colossal mistake to do that. They will have 50 mph winds and 8 inches of rain in parts of NE PA and it would be foolish to think they'd be outsmarting the storm by going there. On top of that, good luck getting back afterwards. Routes 80 and 78 will be flooded in many areas and probably would be impassable.

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there really is no such thing as a "mandatory" evacuation. It basically means that if you choose to stay, you are abandoning protection from local authorities and are on your own and that there is no guarentee that roads/bridges in/out of your town will stay open or passable.

While the local government may be able to impose a fine, or threaten more extreme measures like imprisonment, I don't disagree with this assertion. I'm just glad it will coerce at least a few of those who stayed behind to actually start heeding the warnings.

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FWIW, Steve D's latest tweets:

nynjpaweather Steven DiMartino Studying all the data, I am becoming confident that Irene is driving the dry air out of the circulation.6 minutes ago

nynjpaweather Steven DiMartino This should lead to a period of intensification, perhaps rapid intensification this evening.5 minutes ago

nynjpaweather Steven DiMartino Moist air and convection is now consolidating around the center of Irene and reestablishing the Central Dense Overcast and Eye Wall.4 minutes ago

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I don't disagree with that solution. It seems that there was some misunderstanding on what the Euro is showing. If one runs the maps off Plymouth State for the Northeast, the Euro shows Irene centered in extreme SE PA at 48 hours (http://vortex.plymou...u/grbcalc2.html). That's a solution I don't agree with. A solution where Irene makes landfall anywhere in an area running from NYC to western Suffolk County is quite reasonable.

That doesn't look correct.

Hour 48, of the 12z euro has the center just inland off Atlantic City:

2nvfsd0.gif

And at hour 51, the center is located on top of Staten Island:

vmuhhy.gif

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It has been back and forth east and west on and off run. Its been on the eastern side of solutions I would say. We have a very narrow landfall path between here and NYC.

Yeah-- not that different from what happens in winter lol. 0z/12z are usually the way to go.

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Wow AG, does what the Euro show represent close to a worst case scenario for NYC?

I would say 10 miles east of that path to avoid land with Jersey, would be the worst case, but this is close.

The wind maps show 50-60knot winds, Sustained for almost all the Jersey shore and almost into southern Brooklyn as well. 45knot sustained for NYC and all of LI.

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Well it is the 18z lol-- it seems like 0z/12z and 6z/18z seem to follow these swings.

Yeah, there are really no trends. There are just small swings/shifts during each model cycle. The storm will almost certainly be somewhere between NYC and Central Suffolk.

I'm going for somewhere between Atlantic Beach and Bay Shore at this point. I want to be on the RFQ so I'm hoping for Atlantic Beach...

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Well it is the 18z lol-- it seems like 0z/12z and 6z/18z seem to follow these swings.

One of the December misses before the 12/26 event last year there was a potential storm threat which literally came west on every 06 and 18 run and went east on the 12 and 00 runs...for some reason this happens with certain systems.

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I would say 10 miles east of that path to avoid land with Jersey, would be the worst case, but this is close.

The wind maps show 50-60knot winds, Sustained for almost all the Jersey shore and almost into southern Brooklyn as well. 45knot sustained for NYC and all of LI.

Not bad..60knot for southern part of city..that will give hurricane gusts

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When do you guys think they will start issuing Hurricane Warnings for the city and boroughs?

Possibly at the 5pm advisory, but definitly by the 11pm advisory, they have a plane in there right now which will give them a better idea as to whats going on. I think they will at least maintain its current intensity.

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A HURRICANE WARNING HAS BEEN ISSUED FROM NORTH OF SANDY HOOK TO

SAGAMORE BEACH MASSACHUSETTS...INCLUDING NEW YORK CITY...LONG

ISLAND...LONG ISLAND SOUND...COASTAL CONNECTICUT AND RHODE ISLAND...

BLOCK ISLAND...MARTHAS VINEYARD AND NANTUCKET.

A TROPICAL STORM WARNING HAS BEEN ISSUED FROM NORTH OF SAGAMORE

BEACH TO THE MOUTH OF THE MERRIMACK RIVER.

A TROPICAL STORM WATCH HAS BEEN ISSUED FROM THE MOUTH OF THE

MERRIMACK RIVER TO EASTPORT MAINE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A HURRICANE WARNING IS IN EFFECT FOR...

* LITTLE RIVER INLET NORTH CAROLINA NORTHWARD TO SAGAMORE BEACH

MASSACHUSETTS...INCLUDING THE PAMLICO...ALBEMARLE...AND CURRITUCK

SOUNDS...DELAWARE BAY...CHESAPEAKE BAY SOUTH OF DRUM POINT...NEW

YORK CITY...LONG ISLAND...LONG ISLAND SOUND...COASTAL CONNECTICUT

AND RHODE ISLAND...BLOCK ISLAND...MARTHAS VINEYARD AND NANTUCKET.

A TROPICAL STORM WARNING IS IN EFFECT FOR...

* NORTH OF EDISTO BEACH SOUTH CAROLINA TO LITTLE RIVER INLET

* CHESAPEAKE BAY FROM DRUM POINT NORTHWARD AND THE TIDAL POTOMAC

* NORTH OF SAGAMORE BEACH TO MERRIMACK RIVER

A TROPICAL STORM WATCH IS IN EFFECT FOR...

* MERRIMACK RIVER TO EASTPORT MAINE

INTERESTS IN SOUTHEASTERN CANADA SHOULD MONITOR THE PROGRESS OF

IRENE.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE

INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY

YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST OFFICE.

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