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A closer look at F scale

Q: In the September 2022 issue of Model Railroader, Mike Tylick wrote "Add a gated crossing to your layout." On page 36, there is an image of a gate that he built for the F scale Chester & Beckett RR.
WKYT

Good Question: What’s the difference between the F scale and EF scale for tornadoes?

The EF Scale is basically an updated version of the F-Scale. If you are around my age, you probably remember tornadoes being categorized on the Fujita Scale up to F5. But now, we use the Enhanced ...
The Hill

What’s the difference between F4 and EF4 tornadoes?

But what is the difference? The differences between the scales are significant. The EF scale, better known as the Enhanced Fujita Scale, was adopted by the National Weather Service (NWS) in 2007. This ...