Depending on the situation, whether it is a natural disaster? If it's not serious, it can tell the time is serious, but if they should tell you know that in order to be prepared for the disaster.
Depending on the situation as a kind of natural disaster. If not fatal, it can tell the time around, but if it should tell you how serious it is to be prepared with a disaster that.
Depending on the situation as a natural kind. If not serious can tell in time close, but if serious should tell know go to in order to preparing the disaster there.