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Major Hurricane Irma


NJwx85

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17 minutes ago, Diggiebot said:

It wasn't really a cat 3 at landfall but its high forward speed (50-60 mph) added to the wind speeds.

 

 

13 minutes ago, Hoth said:

Interesting, so categorization is based only on a static system? 

Forward speed is taken into account for intensity estimates. The HURDAT reanalysis maintained 1938 as a Cat 3 at landfall on Long Island, so yeah, that map is inaccurate in that regard.  

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1 minute ago, TriPol said:

To get a 'Sandy' type of event, a hurricane would have to shoot north to Jersey and make a sudden left turn into the Delmarva area, which is what Sandy did. The chances of that happening again in our lifetimes is about 1 in a million.

We've actually seen a few "left hooks" over the years back to the coast. They just usually aren't as extreme.

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20 minutes ago, MattPetrulli said:

It's pretty premature to say something is highly likely at this point. It's really a coin flip between landfall and fish currently. I'm not even a weenie trying to hype it up or anything, but its pretty unprofessional to say something is highly likely a week out. 

Yeah, its like people never learn. Full hype mode unnecessary right now.

A lot of the arguments "Look at that ridge nowhere to go but striking the coast" are misguided.  Just because it shows that now, doesn't really mean anything.

Katrina was originally going to be a Florida panhandle hit and a major storm up the SE coast. Models and conditions looked as certain then and these do now. Stuff changes.

I think this needs to be watched, but if I was a betting man, I'd bet fish any day, climo and stats argue it. Models are for entertainment at this range.

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4 minutes ago, Mdecoy said:

Yeah, its like people never learn. Full hype mode unnecessary right now.

A lot of the arguments "Look at that ridge nowhere to go but striking the coast" are misguided.  Just because it shows that now, doesn't really mean anything.

Katrina was originally going to be a Florida panhandle hit and a major storm up the SE coast. Models and conditions looked as certain then and these do now. Stuff changes.

I think this needs to be watched, but if I was a betting man, I'd bet fish any day, climo and stats argue it. Models are for entertainment at this range.

social media will be awful this weekend with alot of mis-information and fear mongering.

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3 minutes ago, Mdecoy said:

Yeah, its like people never learn. Full hype mode unnecessary right now.

A lot of the arguments "Look at that ridge nowhere to go but striking the coast" are misguided.  Just because it shows that now, doesn't really mean anything.

Katrina was originally going to be a Florida panhandle hit and a major storm up the SE coast. Models and conditions looked as certain then and these do now. Stuff changes.

I think this needs to be watched, but if I was a betting man, I'd bet fish any day, climo and stats argue it. Models are for entertainment at this range.

It may fish, really depends on the strengh and speed of the OV trough and whether or not the building NE ridge can push it back NNW any. 

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Key Messages being introduced with 5 PM advisory 

KEY MESSAGES:

1. Irma is expected to be a major hurricane when it approaches the
Lesser Antilles early next week, producing rough surf and rip
currents.  Irma could also cause dangerous wind, storm surge, and
rainfall impacts on some islands, although it is too soon to specify
where and when those hazards could occur. Residents in the Lesser
Antilles should monitor the progress of Irma through the weekend and
listen to any advice given by local officials.

2. It is much too early to determine what direct impacts Irma will
have on the continental United States. Regardless, everyone in
hurricane-prone areas should ensure that they have their hurricane
plan in place, as we are now near the peak of the season.
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000
WTNT31 KNHC 012049
TCPAT1

BULLETIN
Hurricane Irma Advisory Number  10
NWS National Hurricane Center Miami FL       AL112017
500 PM AST Fri Sep 01 2017

...IRMA TURNS WESTWARD WITH 120-MPH WINDS...


SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...18.8N 39.1W
ABOUT 1495 MI...2405 KM E OF THE LEEWARD ISLANDS
MAXIMUM SUSTAINED WINDS...120 MPH...195 KM/H
PRESENT MOVEMENT...W OR 275 DEGREES AT 13 MPH...20 KM/H
MINIMUM CENTRAL PRESSURE...964 MB...28.47 INCHES


WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.

Interests in the northern Leeward Islands should monitor the
progress of this system.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 500 PM AST (2100 UTC), the center of Hurricane Irma was located
near latitude 18.8 North, longitude 39.1 West. Irma is moving toward
the west near 13 mph (20 km/h).  A turn toward the west-southwest
is expected tomorrow.

Maximum sustained winds are near 120 mph (195 km/h) with higher
gusts.  Irma is a category 3 hurricane on the Saffir-Simpson
Hurricane Wind Scale.  Fluctuations in strength, up or down, are
possible during the next few days, but Irma is expected to remain a
powerful hurricane through the weekend.

Hurricane-force winds extend outward up to 25 miles (35 km) from the
center and tropical-storm-force winds extend outward up to 105 miles
(165 km).

The estimated minimum central pressure is 964 mb (28.47 inches).


HAZARDS AFFECTING LAND
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