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Hurricane Storm Surge question
Posted on 9/28/22 at 8:44 am
Posted on 9/28/22 at 8:44 am
Lets assume we're talking a cat4 or cat 5 type storm.
Is the storm surge just a rapid rise of water over a couple hours or does the storm actually have a sizable tidal wave that rides with the eye of the storm?
I didn't want this discussion to derail in hurricane thread.
Is the storm surge just a rapid rise of water over a couple hours or does the storm actually have a sizable tidal wave that rides with the eye of the storm?
I didn't want this discussion to derail in hurricane thread.
Posted on 9/28/22 at 8:45 am to Chad504boy
I believe it’s a gradual almost tidal inflow of water that comes in over a matter of hours.
ETA: I’m far from a hurricane expert so you may want to verify that.
ETA: I’m far from a hurricane expert so you may want to verify that.
This post was edited on 9/28/22 at 8:46 am
Posted on 9/28/22 at 8:45 am to Chad504boy
quote:
rapid rise of water over a couple hours
Posted on 9/28/22 at 8:47 am to Tiger Prawn
but didn't they talk about a wall of water that hit somewhere during katrina and maybe other bridges for other storms?
Posted on 9/28/22 at 8:49 am to Chad504boy
Like a strong and steady tidal rise but as it gets deeper the wind driven waves destroy most everything in their path
Posted on 9/28/22 at 8:53 am to Chad504boy
There is no “wall of water” but it can rise quickly and take you by surprise.
Posted on 9/28/22 at 8:56 am to Chad504boy
It rises pretty damn rapidly. It’s not like a tidal wave but the water just comes up very quickly.
Posted on 9/28/22 at 8:58 am to Chad504boy
the eye is lower pressure. the water bubble rises inside the eye and gradually curves down to sea level further from the eye. the whole bubble effect moves with the storm. where it moves onshore the bubble moves too. the lower the pressure the higher the bubble.
Posted on 9/28/22 at 8:59 am to Chad504boy
Register 2005 and has 4 posts? Get the frick outta here.
Posted on 9/28/22 at 9:00 am to Chad504boy
It's not a single tidal wave. Surge is the rise of water caused by the winds literally pushing the sea water (or bay water) onto normally dry ground. Sometimes surge is gradual, but in a strong hurricane it can go from not much surge to extreme surge pretty quickly once the winds start blowing from the right direction at high enough speeds.
This post was edited on 9/28/22 at 9:02 am
Posted on 9/28/22 at 9:02 am to Realityintheface
quote:
Register 2005 and has 4 posts? Get the frick outta here.
wow!
double down! double down!
Posted on 9/28/22 at 9:03 am to CelticDog
quote:
and gradually curves down to sea level further from the eye. the whole bubble effect moves with the storm.
so leads me to ask, does this bubble form a tidal wive when approaching land like normal waves do.
Posted on 9/28/22 at 9:04 am to Chad504boy
that looks like a wall of water, not so much a gradual bubble.
Posted on 9/28/22 at 9:07 am to Chad504boy
That looks like a tsunami.
Surge will come quickly but not like that.
Surge will come quickly but not like that.
Posted on 9/28/22 at 9:08 am to Chad504boy
quote:
rapid rise of water over a couple hours
Posted on 9/28/22 at 9:08 am to Chad504boy
quote:Bridges across open water get busted up because you have big waves slamming into them for hours on end, on top of the storm surge.
but didn't they talk about a wall of water that hit somewhere during katrina and maybe other bridges for other storms?
Bayous and rivers off those bays that have land around them to break up the waves still end up with surge that raises the water level by several feet. They just aren't getting pounded by the waves like a bay or open lake would.
Posted on 9/28/22 at 9:10 am to canyon
This is believed to be the initial tidal wave from Hurricane Katrina.
The tidal wave was approximately 35 to 40 feet high. When it slammed into the beach front communities of Bay Saint Louis and Waveland, Mississippi, it completely destroyed 99% of every structure along the beach for 9 miles and over a mile inland.
The tidal wave was approximately 35 to 40 feet high. When it slammed into the beach front communities of Bay Saint Louis and Waveland, Mississippi, it completely destroyed 99% of every structure along the beach for 9 miles and over a mile inland.
Posted on 9/28/22 at 9:10 am to Chad504boy
It's doesn't look anything like this


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