Subj : What's a storm?

From : Mike Powell
Date : Sat Apr 01 2017 10:56 am

>    I'm sorry to be totally off topic here, but I can't help taking the
> opportunity to ask if you guys across the pond mean the same thing as we do
> over here, when you say "storm".
>
>    Sometimes -- usually when watching YouTube clips :) -- I get the feeling
> that it's mostly about the downfall and not about the wind speed. Over here
> storm means winds averaging 10-11 on the Beaufort scale (24.5 - 28.4 m/s).

Here, they do sometimes "abuse" the use of the word storm.  A heavy rainfall
might be called a storm, for example.  But "Severe Thunderstorms" are usually
defined by wind and/or hail potential (and sometimes, frequent
cloud-to-ground lightning), "Flash Flood (storm) Warnings" by the potential
for heavy rainfall resulting in rapid flooding, and "Tornado (storm)
Warnings" are usually severe thunderstorms with the potential of very heavy
winds and spinning up a tornado (a storm with vertical twisting winds
usually > 74MPH).

Mike

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