CrazyC83 wrote: Even in the US, such a storm would be difficult to prepare for. Think of the 1935 Labor Day hurricane, which was a Cat 1 just 24 hours before landfall (I believe) and bombed out approaching the Keys. Even today, there would be no way everyone would evacuate from that.
Somebody earlier mentioned 7 million people. Where would they go? Mexico is not known for having a good road system. How would they clear 7 million people in just a couple of days?