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May 6: Cut-Off Low & animation

 
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windfind



Joined: 18 Mar 1997
Posts: 1899

PostPosted: Mon May 06, 2013 2:11 pm    Post subject: May 6: Cut-Off Low & animation Reply with quote

Hi Gang,

The first satellite image shows the surface low pressure and its clouds that helped create Bay Area the AVERAGE winds Saturday and is spoiling the wind today. This counter-clockwise spinning puppy is especially weird since it came over us from the East.

The second image is a video of the upper Cut-Off Low that is around 18,000 feet ABOVE the surface low. It was the upper level winds from the Cut-Off Low that turbocharged the surface winds Saturday. Cut-Off Lows are always unpredictable since they are cut off from the normal upper wind flow from West to East around. This creature may wander around for a few more days but it looks to me that it is poised to eject eastward over Southern California.

Mike Godsey
iwindsurf.com



Cut-Off Low.jpg
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Cut-Off Low.jpg



CutOffLowAnim.gif
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CutOffLowAnim.gif


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