Conversation so far:
what's the difference between f5 and ef5
The old scale lists an F5 tornado as wind speeds of 261–318 mph, while the new scale lists an EF5 as a tornado with winds above 200 mph
what does the enhanced fujita scale rate
The Enhanced Fujita scale rates the intensity of tornadoes in some countries, including the United States and Canada, based on the damage they cause.

Question: how many categories does the scale have
Self-contained rewrite: how many categories does the enhanced fujita scale have