Wind chart

[Ronnn]

Someone posted a useful wind chart a while back showing tree branch displacement illustrations relative to wind speed up to about 35-45 mph. I saved it somewhere and cannot find it. If anyone has one would they repost the link or diagram please? Searching here was a joke, the link could not find the site search engine. Google search of field lines loaded immeadiatly. Maybe the new software guy hasn't gotten to that part of the site yet.

Ron

[bodyguy]

This might be what you are looking for.

http://www.awea.org/Graphics_Library/images/image_52.jpg

[wooferhound]

Wind speed estimation

http://www.redwitch.com/extras/flag_wind_speed.aspx

http://www.directhitgolfflags.com/category.aspx?categoryID=7

http://www.wrh.noaa.gov/pqr/info/beaufort.php

http://www.windows.ucar.edu/tour/link=/earth/Atmosphere/tornado/beaufort_scale.html

http://indyhams.org/skywarn/How%20To%20Estimate%20Wind%20Speed.pdf

[SparWeb]

I've always had mixed impressions from for the "tree" index diagram.  The wind energy atlas tells me that the wind where I live is 4-5 meters per second.  My trees don't look like category II on the chart.

The trees around my house all show the direction of the prevailing wind in their trunks, be they evergreens or deciduous, and the branches appear to be completely "flagging" in some places.  Well, it can be windy where I live, but the average wind speed is nowhere near 15 mph.  What looks like flagging is actually sun competition, which exaggerates the impression you get from the curved trunks.  It got worse a few years ago when a heavy snowfall in May broke off a lot of north side branches.

As a "rule-of-thumb", the trees can be used as an approximation or a comparison, but I wouldn't rely only upon that for something as specific as a wind speed measurement.

[Ronnn]

Thanks wooferhound and bodyguy. That was indeed the chart I was looking for.Sparweb,  I understand that this is not the bees knees of wind speed monitoring. But it works for me. I appreciate your efforts. Now to all those other links.

Ron