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re: What major US city (like top 50) would fare best?

Posted on 8/31/17 at 12:05 pm to
Posted by stout
Smoking Crack with Hunter Biden
Member since Sep 2006
167503 posts
Posted on 8/31/17 at 12:05 pm to
quote:

I'd surmise Seattle would do better than the average bear simply due to dealing with consistent rain fall.



Their rainfall is more like a constant mist and they still don't receive the highest rainfall totals in the USA. Not even in the top 10.


quote:

The 10 rainiest cities in the U.S. by amount of annual rainfall include:

Mobile, Ala.: 67 inches average annual rainfall; 59 average annual rainy days

Pensacola, Fla.: 65 inches average annual rainfall; 56 average annual rainy days

New Orleans, La.: 64 inches average annual rainfall; 59 average annual rainy days

West Palm Beach, Fla.: 63 inches average annual rainfall; 58 average annual rainy days

Lafayette, La.: 62 inches average annual rainfall; 55 average annual rainy days

Baton Rouge, La.: 62 inches average annual rainfall; 56 average annual rainy days

Miami, Fla.: 62 inches average annual rainfall; 57 average annual rainy days

Port Arthur, Texas: 61 inches average annual rainfall; 51 average annual rainy days

Tallahassee, Fla.: 61 inches average annual rainfall; 56 average annual rainy days

Lake Charles, La.: 58 inches average annual rainfall; 50 average annual rainy days
Posted by GRTiger
On a roof eating alligator pie
Member since Dec 2008
63214 posts
Posted on 8/31/17 at 12:05 pm to
quote:

I'd surmise Seattle would do better than the average bear simply due to dealing with consistent rain fall.


Seattle gets less rain than Houston in a year. They are below the annual average for the US.
Posted by JawjaTigah
Bizarro World
Member since Sep 2003
22506 posts
Posted on 8/31/17 at 12:05 pm to
Maybe Miami. But I don't believe any major city would do well with 50" of rain. Flat. Coastal. Mountains. Mud. That is 4 ft. of water that either stands or has to go somewhere.
Posted by OMLandshark
Member since Apr 2009
109082 posts
Posted on 8/31/17 at 12:06 pm to
But people (included yourself) have said Chicago like 5 times. I don't see why it would fair better and likely worse than other cities on a coastline. Chicago is flatter than Kiera Knightley.
Posted by PhillipJFry
Member since Sep 2016
964 posts
Posted on 8/31/17 at 12:07 pm to
quote:

My first thought was Miami or Tampa





It is def not Tampa. We get flooded streets with an inch of heavy rain.
This post was edited on 8/31/17 at 12:10 pm
Posted by jmarto1
Houma, LA/ Las Vegas, NV
Member since Mar 2008
34055 posts
Posted on 8/31/17 at 12:10 pm to
quote:

Umm, Vegas, Phoenix


shite no, people die here when it rains half of an inch in flash floods.




Isn't there a train underpass either on Washington or Bonanza that has a big dip down? It always collected a lot of water and people would try to drive through and drown.
Posted by OceanMan
Member since Mar 2010
20033 posts
Posted on 8/31/17 at 12:11 pm to
The answer has to be one of the cities on the gulf coast that actually experience a lot of rain. The soil and plant life has as much to do with this as anything, so a region that experiences this type of rain would be more well suited.

Nothing inland could handle that type of rain at all.

Honestly, my answer to this is probably still Houston. I just don't think any city can handle 2-4 ft of rain properly. Miami is up there too.
Posted by MorbidTheClown
Baton Rouge
Member since Jan 2015
66364 posts
Posted on 8/31/17 at 12:11 pm to
What about Honolulu?
Posted by NYNolaguy1
Member since May 2011
20923 posts
Posted on 8/31/17 at 12:13 pm to
My thought process was that its next to an infinite sink. Theres no upper limit for how much the lake can hold, as compared to say Buffalo Bayou.

I could see some temporary flooding like Sandy for NYC, but there would be no back up like you see in Houston.
Posted by ShaneTheLegLechler
Member since Dec 2011
60221 posts
Posted on 8/31/17 at 12:13 pm to
quote:

But people (included yourself) have said Chicago like 5 times. I don't see why it would fair better and likely worse than other cities on a coastline. Chicago is flatter than Kiera Knightley.


Yeah I don't think people are grasping how much rain we are talking about
Posted by SeeeeK
some where
Member since Sep 2012
28114 posts
Posted on 8/31/17 at 12:19 pm to
quote:

Phoenix,


LOL a tropical depression brought arizona to its knees, The remains of Hurricane Norbert butt farked them, and it was no more than a depression then.

they do not have the sewer system for heavy rains, and i doubt vegas does either. they would both be fricked.

Do some of you even watch the news???

Posted by NYNolaguy1
Member since May 2011
20923 posts
Posted on 8/31/17 at 12:21 pm to
quote:

Yeah I don't think people are grasping how much rain we are talking about


Theres a whole science behind who floods and when (hydrology). Its been a few years since I took it in college, but it comes down to 1)amount of rainfall coming down vs 2)local geography and ability to drain. Part of that is city infrastructure, but part of it is what surfaces are impervious to water, and how much flow can your outflow channels, rivers, creeks, etc can hold.

My point is that given NYC and to a lesser extent Chicagos high proportion of impervious surfaces coupled with proximity to large bodies of water that wont back up due to high water, and then youll have high immediate flooding that drains relatively quickly.
Posted by Dire Wolf
bawcomville
Member since Sep 2008
36721 posts
Posted on 8/31/17 at 12:24 pm to
quote:

Honestly, my answer to this is probably still Houston. I just don't think any city can handle 2-4 ft of rain properly. Miami is up there too.



I love Houston but there needs to be a better effort to build retention ponds, green spaces/rain gardens, and green roofs.

I did see a company is starting to do ball moss roofs LINK
Posted by MLCLyons
Member since Nov 2012
4710 posts
Posted on 8/31/17 at 12:25 pm to
quote:

Umm, Vegas, Phoenix,


???

Deserts do not handle torrential rains well at all. The ground is essentially baked and doesn't allow much to be absorbed so it all stays on the surface. The only reason Vegas might do well with strictly rain is because of the number of tall hotels that could be used as shelters.
Posted by OMLandshark
Member since Apr 2009
109082 posts
Posted on 8/31/17 at 12:27 pm to
I'm confident New York could handle a flood like this over Chicago, especially when you get outside of Manhattan.
Posted by luvdatigahs
Alameda, CA
Member since Sep 2008
3015 posts
Posted on 8/31/17 at 12:27 pm to
Honolulu would be my first thought, could drain into the ocean and people could just surf away to stay out of the rising waters
Posted by ShaneTheLegLechler
Member since Dec 2011
60221 posts
Posted on 8/31/17 at 12:30 pm to
Here is an article discussing flooding in the Chicago area from 5-8 inches in a 24 hour period, 2-3 inches of rain per hour at the highest rate.

LINK

Houston received 15-25 inches in a 24 hr period (twice) and peak of 5-6 inches per hour.

I'm sure Chicago would handle it better than Houston, but there would still be large scale flooding and lots of damage
Posted by upgrayedd
Lifting at Tobin's house
Member since Mar 2013
134887 posts
Posted on 8/31/17 at 12:32 pm to
quote:

Phoenix,

That place would flood with 2" of rain
Posted by LSUSPARKY621
Dream of Californication
Member since Mar 2007
1331 posts
Posted on 8/31/17 at 12:40 pm to
quote:

I am going San Francisco. Sure there are parts that are going to get 20 feet deep, but there is a lot of elevation. Places like the Marina district and probably Mission are going to get wasted, but Presido, Castro, Nob Hill, Pacific Heights should be fine. Most water is going to drain away from center.


No way. The rainfall stats over the past 20 years are as follows. 50" in a couple of days would obliterate all the high areas via mudslides and the low areas via flooding. Shoreline would come in a LOT, taking out everything from the Marina to the Embarcadero all the way around to Hunters Point. Basically the only places I think that would be fair are the ones kind of in the "middle" of the hilly areas like the Outer Richmond and Outer Sunset areas

Rainfall stats of SF 1997 - 2016:
AVG = 23.73"
MAX = 47.22"
MIN = 12.54"
MEDIAN = 23.38

My vote is Portland. Rainy 9 months out of the year and drainage via the Columbia and Willamette Rivers--as long as they don't swell crazy out of their banks
This post was edited on 8/31/17 at 12:43 pm
Posted by Dire Wolf
bawcomville
Member since Sep 2008
36721 posts
Posted on 8/31/17 at 12:54 pm to
quote:

Here is an article discussing flooding in the Chicago area from 5-8 inches in a 24 hour period, 2-3 inches of rain per hour at the highest rate.



from Eric berger of space city weather

quote:

But this was not normal rainfall; it was extreme tropical rainfall. Meteorologists measure rainfall rates in inches per hour at a given location. A rainfall rate of 0.5 inches per hour is heavy, while anything above 2.0 inches per hour is intense (you'd probably stop your car on a highway, pull over, and wait out the passing storm). Over Clear Creek near where I live, from 11pm to 1am that night, 10.6 inches of rain fell, about as much rainfall as New York City gets from October through December. That happened in two hours.

he next night, the heaviest band of rainfall set up over western Houston, where affluent suburbs are generally protected by two large reservoirs. The Addicks and Barker facilities were built before World War II following devastating floods in Houston. Combined they have a capacity to store about 400,000 acre-feet of water, or about the same amount of water that goes over Niagara Falls in 10 days.

The reservoirs filled up for the first time ever during Harvey, forcing the US Army Corps of engineers to release water into bayous that were already flooded, worsening conditions downstream in central Houston. Dramatically, this occurred near the very height of the storm. It seems insane, but this was the best of several bad options. Had the Corps not done this, the dam walls might have failed, leading to a catastrophic release of a wall of water as much as 100 feet high.
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