SLOSH Models

[terstorm1012]

I'm doing an independent research project for my own info...does anyone know where I can get SLOSH maps and models, specifically for Chesepeake and Delaware Bay, including the NJ, DE and MD Shores?

thanks .

[P.K.]

As far as I'm aware they are not available on the internet.

[jax]

As far as I'm aware they are not available on the internet.

i think they are FEMA products.... you could try and contact them...

[Air Force Met]

Check your PM

[Windsong]

I've been looking for the same data for my area. I live about 15 miles south of Kennedy Space Center and I was wondering what storm surge would look like from a storm like Katrina, Rita, etc.

Last year the storms came from points south so there was no direct in type hit. I was able to find flood maping for the county, but I noticed those have never been modified and were created a number of years ago.

Anyone have an info about East Coast Central FL?

Thanks
Windsong

[wxman57]

I was at a local hurricane conference last year and the NWS was handing out CDs with the SLOSH program in one of the training classes. It's a pretty simple program. Storm surge is quite dependent upon the near-shore topography (slope of sea bottom). Surge is higher when there is a very gradual drop-off from the coast to offshore. But on the east coast, there is a very steep drop-off just off the coast. This results in a much lower storm surge on the east U.S. coast vs. along the Gulf coast.

I ran it for a Cat 4 moving west into Cape Canaveral at 12 mph:

<img src="http://myweb.cableone.net/nolasue/capecat4.gif">

Then I ran it for a Cat 3 moving into Delaware Bay from the ESE:

<img src="http://myweb.cableone.net/nolasue/delaware.gif">

Then I ran one for a Cat 4 moving north into the MS coast. Note the highly-amplified surge.


<img src="http://myweb.cableone.net/nolasue/mscat4.gif">

[MGC]

Looks to me that the SLOSH model got the Miss Gulf Coast wrong. Where are the 30+ coast wide surge prediction? Looks like it has underestimated the surge by a good margine.......MGC

[wxman57]

Looks to me that the SLOSH model got the Miss Gulf Coast wrong. Where are the 30+ coast wide surge prediction? Looks like it has underestimated the surge by a good margine.......MGC

First of all, bear in mind that the slosh maps I posted are for MULTIPLE impacts all along a coast to show the maximum possible surge at any one area. The program can also be run with a specific storm track hitting one location, but that takes a considerable amount of work to build a track.

I noticed that the SLOSH model underestimated Katrina's surge by 20-30% or more. This was likely due to the extremely large area of hurricane-force winds, much larger than with an average-sized storm that SLOSH is using for the calculations.

We used the old Navy Shore Protection Manual and manually calculated a surge closer to what was experienced - about 31 ft in some areas.

[iceangel]

does anyone know where I can get SLOSH maps and models, specifically for Chesepeake and Delaware Bay, including the NJ, DE and MD Shores?

thanks .

Maybe this will be of some help.
http://72.14.207.104/search?q=cache:xgu ... n&ie=UTF-8

[jasons2k]

I'd love to see Galveston and Tampa if possible.

[jdray]

Ive read the reports on the one from NAS Mayport about a Cat 5 damage to downtown Jacksonville. Would love to see the effects though on the complete upper St Johns River water basin.

https://www.cnmoc.navy.mil/nmosw/tr8203 ... tab5-4.htm
This shows that a storm coming from the east (Dora 1964) actually had a higher surge 20 miles up river due to the way the St Johns River upper basin is shaped.