Re: [Paddlewise] Barometers (for long range weather prediction)

From: Thomas Unger <unger_at_tumtum.com>
Date: Sun, 29 Aug 1999 11:20:16 -0700
Dave Kruger wrote:
> Could it be the forecasts are for open water, where conditions would be more
> severe?

Well, this summer when I was up on the BC coast I too had the impression
that the wind I experienced was often less than forecast.  And sometimes
in a completely different direction.  I assumed this was due to land
effects and that off shore conditions would be more in line with what
was forecast.

I use the Suunto Vector altimeter watch as my barometer.  It keeps the
history of the pressure every hour for the past 6 hours, then every 6
hours before.  I don't have to keep my eye on it, I can always go back
and check the history.  In addition, the watch has a small graph to show
the significant trend in the past three hours then the three hours
before that:  up, steady, or down.  So if there has been some
significant movement the graph will alert me.

However, as John suggested, I've also noted that in the north west we
can have significant changes in the weather with only small barometric
changes.  Most of the time the watch graph shows steady - steady while
mild storms blow through.  But when I do see a significant change there
usually is significant weather moving through.

Tom Unger
Seattle.
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Received on Sun Aug 29 1999 - 11:24:47 PDT

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