Click bait headline but this is IMO something you need to read, Top to bottom, word to word.

https://www.shtfplan.com/headline-news/puerto-rico-what-its-really-like-after-the-shtf_09282017

Things are dire in Puerto Rico. We haven’t heard much directly from people there since Hurricane Maria took out power for the entire island, but what we do know is that the situation is desperate. This is a shocking, real-life glimpse into what it’s really like when the S hits the fan.

Chapter headline
Many homes were completely destroyed.
There is hardly any potable water.
Hospitals are struggling to keep people alive.
There isn’t much food.
There is little communication.
Why has help been so slow to arrive?
Lessons from Puerto Rico

Most important take aways, Even if you dont read the whole thing.
These lessons could save your life in such a situation:
Storing non-perishable food and off-grid supplies is very important.
Have the supplies on hand to purify water.
Have the necessary skills to access food and water if your supplies are destroyed.
When all communications are down, ham radio will still work if you can get the power to run it.
Keep extra essential medications on hand.
Be prepared for the day when there is no medical help available.
Keep up to date on current events so that you can be better prepared for what is headed your way.
Always have cash in small denominations.
Do not depend on a generator for a long-term emergency. Prep low-tech because fuel will be short and it will help you to stay under the radar.
Be prepared to defend your home and family as desperation increases.

If two cat5 hurricanes were to hit the Hawaiian Islands like they did PR, Oahu would be the worst place to be.  Just did some quick calculations and rounded off the numbers to keep it simple.  PR has 3.5 million people on 3515 sq mi,of land, giving each person about 27,000 sq ft of space.  Oahu has 953,000, not counting the 300,000 tourists on 597 sq mi.  So for residents only, each person would have 16,000 sq ft of space.  On the Big Island with 4208 sq mi and a population of 186,000, each person would have over 580,000 sq ft of space, about like my subdivision, which is 12.5 sq mi with 600 people living here.  As we all know, the more cramped an area is, the more tension and stress people will have.  The small properties on Oahu will limit the natural resources you will have at hand to build a temporary shelter, for firewood etc. 

If two cat5 hurricanes were to hit the Hawaiian Islands like they did PR, Oahu would be the worst place to be.  Just did some quick calculations and rounded off the numbers to keep it simple.  PR has 3.5 million people on 3515 sq mi,of land, giving each person about 27,000 sq ft of space.  Oahu has 953,000, not counting the 300,000 tourists on 597 sq mi.  So for residents only, each person would have 16,000 sq ft of space.  On the Big Island with 4208 sq mi and a population of 186,000, each person would have over 580,000 sq ft of space, about like my subdivision, which is 12.5 sq mi with 600 people living here.  As we all know, the more cramped an area is, the more tension and stress people will have.  The small properties on Oahu will limit the natural resources you will have at hand to build a temporary shelter, for firewood etc.

And then you have to factor in the 300k tourists here at any 1 time

Here's some math,

12 MRE's in a box
48 boxs on a pallet
32 pallets in per container

That equals 18432 MRE's per container,

At 2 per day that's enough for 9216 people per day.

We would need 142 containers of MRE's per day to feed oahu (residents and tourists)

Some photos for your view pleasure,

I had a sit down with my wife about this, now she understood why i been buying can goods and emergency food over the years, it would take 2 weeks+ for the first ship to get here if ports are down, and who knows how long it will take to unload it without the right equipment, a good  week for airport to get up and running if fuel is available, just look at what happen to the west side of island when the water main breaks, took hours to get in or out, we only have so much on hand yet ppl think the state has a great plan, they can even plan anything eight over the last few years, and if i am correct we have nothing in the states hurricane found

One huge difference is the large military presence here, not to mention the Pacific command resides here and strategic military significance. The military would provide major assistance but I fully agree with the need to be prepared because the reality is we are an island, and all the challenges that come with that in these types of situations.

One huge difference is the large military presence here, not to mention the Pacific command resides here and strategic military significance. The military would provide major assistance but I fully agree with the need to be prepared because the reality is we are an island, and all the challenges that come with that in these types of situations.

There is around 100K military stationed in PR.

There is around 100K military stationed in PR.

Really...100k? That is a massive amount of US military there. I don't think that number is correct for active duty US stationed there.

Sounds like a couple hundred...

https://militarybases.com/fort-buchanan-army-base-in-guaynabo-puerto-rico/

TBH i dont know where i got that number, I googled it found it and dident fact check it, Looks like we have 2.5k stationed in puerto rico

If two cat5 hurricanes were to hit the Hawaiian Islands like they did PR, Oahu would be the worst place to be.  Just did some quick calculations and rounded off the numbers to keep it simple.  PR has 3.5 million people on 3515 sq mi,of land, giving each person about 27,000 sq ft of space.  Oahu has 953,000, not counting the 300,000 tourists on 597 sq mi.  So for residents only, each person would have 16,000 sq ft of space.  On the Big Island with 4208 sq mi and a population of 186,000, each person would have over 580,000 sq ft of space, about like my subdivision, which is 12.5 sq mi with 600 people living here.  As we all know, the more cramped an area is, the more tension and stress people will have.  The small properties on Oahu will limit the natural resources you will have at hand to build a temporary shelter, for firewood etc.

I work with the state/county disaster emergency team from time to time, and I can tell you that if a strong hurricane were to hit oahu, we'd be absolutely screwed.  Just look at how long it took kauai to recover, and they have a small fraction of the people that oahu has, and they could rely on oahu for emergency relief help since the vast majority of the resources, navy, and shipping in hawaii is on oahu.  The state is aware of this, and it's the reason why they doubled the food/water recommendation this year to 14 days from 7 days.  If SHTF, you WILL be on your own.   

The state's budget in handling a disaster is woefully inadequate.  The state's priority in a major disaster is to basically clear the path between waikiki and the airport and to get as many tourists out of here ASAP, with stretched resources, it cannot afford to attempt to support a few hundred thousand extra people on top the residents.  Their other priority is to clear the harbors and major highways to hopefully get the supply of emergency supplies going.  Your house, probably damaged, your neighborhood roads, electricity, water, plumbing, etc. are all pretty far down on their list of things that need to be done with an inadequate amount of equipment and personnel  With Hawaii's normal incompetence combined with the disaster, probably be a few weeks at least before the majority of residents receive meaningful assistance.  I think it's possible we'd face a katrina type situation with looting, theft, and crime rampant.  It's not like the mainland, where assistance can be simply driven over from another state...

---------------------------------------------

The state downplayed the issue noted in the article, but during hurricane darby (which didn't really hit us, nor was it a hurricane I believe), a lightning strike from the storm konked out all communications to and from the emergency management headquarrters and the emergency siren system.  So for the duration of the storm, and into the next day I believe, they didn't have communication with any of the other state/county personnel dealing with disaster relief.  And they're the ones supposed to be coordinating the effort and advising the governor and other leaders.   Darby was also the storm that caused huge flooding problems in certain areas like Kalihi, road closures, and other messes across oahu.   And it was not even a hurricane.  And it brushed by Oahu.

http://www.hawaiinewsnow.com/story/32559221/darby-briefly-knocked-out-connection-to-emergency-sirens

Everyone thinks you're paranoid until shit hits the fan.

From what I understand, the main difference between Katrina and this year's hurricanes is that FEMA is dispersing the relief supplies (including heavy equipment) throughout the area instead of staging it far inland. This meant setting up depots throughout the coast.