[wxqc] barometer readings

[jim]

A friend of mine and I are discussing the relativity of the barometer rise
and fall and the correlation of an impending storm.
I found a barometer rate chart on a sailing web site and it said that .06
inch in 3 hours meant a storm was impending, .15 inch in 3 hours meant a
strong storm, and .30 inch in 3 hours meant a extreme storm. it did not
mention if it was a rise or fall, I assume it is a falling pressure. is this
a good rule of thumb or does it just pertain to out on the water and not
over land. is there any way to predict a storm/rain by watching the
barometer over a period of time.

thanks
Jim
CW4367
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