Subj : Re: What's a storm?
To   : Mike Powell
From : Daryl Stout
Date : Tue Apr 04 2017 08:13 am

Mike,

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

  If you go to www.weather.gov -- you see a whole slew of Warnings, Watches,
and Advisories, for various "weather items". One item they issued years ago,
but don't anymore, was a "Travelers Advisory for Slippery Roads". 

Daryl

.... Bad weather reports are more often right than good ones.
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