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Hurricane Ian


Scott747
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SevereStudios has some pretty good cams again today of surge in SC for anyone interested. Pawleys Island seems to getting the worst of it so far. 

Can someone link it? I don’t have it saved.

Ian definitely build a nice surge on its north side based on buoy readings I have been looking at. That easterly fetch with the high pressure gradient is a very rare setup this far south. Something more like you would see in New England during some of the classic nor’easters. Sc is going to be another major damage area. As JM and I have noted as we both lived in Long Beach Ny, salt water flooding in itself is a disaster as you need to gut down to the studs to properly repair


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Just now, LongBeachSurfFreak said:


Can someone link it? I don’t have it saved.

Ian definitely build a nice surge on its north side based on buoy readings I have been looking at. That easterly fetch with the high pressure gradient is a very rare setup this far south. Something more like you would see in New England during some of the classic nor’easters. Sc is going to be another major damage area. As JM and I have noted as we both lived in Long Beach Ny, salt water flooding in itself is a disaster as you need to gut down to the studs to properly repair


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Here's one: https://www.severestudios.com/storm-chasers/jordan.hall.html

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36 minutes ago, ATDoel said:

absolutely incorrect.  You can build homes that are essentially surge proof.  You sink reinforced concrete piers into the bedrock, raise the first floor above the surge zone, and install break away walls on the ground level.  As long as you keep your utilities above the surge zone, even a catastrophic flood would do minimal damage to a house built this way.

 

What you can't do is build a normal slab on grade home and expect it to survive storm surge.

Got it, just have a 15 foot concreate raised base on the waterfront which I am sure is allowed by Florida zoning.  

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1 minute ago, SnowenOutThere said:

Got it, just have a 15 foot concreate raised base on the waterfront which I am sure is allowed by Florida zoning.  

No, why would you want a 15' raised slab?  Build the house on piers, leave the slab on grade.  You can install break away walls on the ground floor so the house will "look" fairly normal and you'll even have some usable space down there.  Keep all the main parts of the house on the 2nd floor on top of the first floor assembly and you're good to go.

Surge comes in, your walls break away around your garage, damage is minimal, house survives.  Easy, it just cost a bit more to build this way and you become more limited in your architecture.

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Thinking more in the form of winds. 
 
It's fine, whatever.   It's more like a high end TS.

That’s always been my issue with the way we classify storms. It shouldn’t be based solely on winds. Ian currently has the surge potential of a normal cat 2 based on IKE, this will be a major disaster for SC. I think it makes a run for costliest hurricane of all time


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2 minutes ago, StantonParkHoya said:

I think we have landfall


 What you see on radar is not the surface center. That is some kind of eddy. The center was near the 41004 buoy just 1.5 hours ago and that's ~65 miles ESE of Charleston. It can't be onshore that fast.

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4 hours ago, MANDA said:

I agree.  Big sprawling ocean storm bumping up against strong high pressure aiding in keeping the winds up.  No real change as far as impacts no matter what we call it but nothing tropical about this in my opinion.

I think it's a stretch to suggest there are no tropical characteristics remaining whatsoever.  If that were the case, I don't think it would weaken over land as quickly as what's being progged.

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 I'm guessing, based on it being near the 32.5N, 79.1W buoy at 11:30 AM, that landfall will be in the upper part of the SC coast around mid-afternoon. If Ian continues mainly northward and doesn't landfall til near Myrtle Beach, it could be as late as ~4 PM. But if it turns left sharply toward Georgetown, it could landfall as early as ~2PM.

 Looking at the latest reports from the SC coast, the SLP is now lowest and falling most rapidly at Georgetown (ignore the Charleston Waterfront Park SLP, which always runs way lower than nearby stations and is thus bogus). As of 12:35 PM, it was 29.13"/986 mb. An hour earlier it was at 29.25" and two hours earlier it was at 29.36":

https://www.wrh.noaa.gov/zoa/getobext.php?sid=kgge

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2 minutes ago, GaWx said:

 I'm guessing, based on it being near the 32.5N, 79.1W buoy at 11:30 AM, that landfall will be in the upper part of the SC coast around mid-afternoon. If Ian continues mainly northward and doesn't landfall til near Myrtle Beach, it could be as late as ~4 PM. But if it turns left sharply toward Georgetown, it could landfall as early as ~2PM.

 Looking at the latest reports from the SC coast, the SLP is now lowest and falling most rapidly at Georgetown (ignore the Charleston Waterfront Park SLP, which always runs way lower than nearby stations and is thus bogus). As of 12:35 PM, it was 29.13"/986 mb. An hour earlier it was at 29.25" and two hours earlier it was at 29.36":

https://www.wrh.noaa.gov/zoa/getobext.php?sid=kgge

Dr. Knabb just declared landfall on the weather channel, just southwest of McLellansville

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21 minutes ago, StantonParkHoya said:

Dr. Knabb just declared landfall on the weather channel, just southwest of McLellansville

Weird. That means that the LLC turned sharply left and moved ~25 mph since 2 hours ago, when it was near the 41004 buoy 50 miles away!

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