Dr. Zoidberg's Disaster Preparedness Handbook

The state of Texas is radioactive. Avoid living, working or breathing there. 

Missouri is also something of a problem. There are apparently only three hospitals in the entire state. 
Should some sort of time-dilation or fully-fledged time-travel occur or seem likely, be aware that computers, televisions and radios may not work in the past since they were not invented yet.

If a monstrous radio-creature tries to entice you with melodic promises of sweetmeats, flee the area immediately.
If you lack a shell into which you can retreat, cower beneath furniture and concentrate on your shoelaces.

Emergencies can cause horrible flatulence. This man is doubled-over from the concussive blast that produced the cloud above him.
There are a lot of things for obsessive-compulsives to do during any emergency. Constant hand washing and calling relatives to tell them about it are two very good examples.

If you had the foresight to bring with you beneath a pile of rubble any of the following, a flashlight, F-ray, whistle, jackhammer, light saber, hydraulic lift, self-contained force field, tungsten carbide mining drill, dimensional porthole generator, bag of holding, or teleporter, use them now to escape or signal for help.
Escape is made easy with the judicious use of Bigby's Forceful Hand spell.

 

The illustrations above were shamelessly lifted from the Department of Homeland Security's Ready.gov disaster preparedness site. There is some largely common-sense information about preparing for disasters on their site. A lot of it is of the stop, drop and roll variety.