dcib/9-11/3:00 to 5:00pm / 5.7,131 carve,65%plane

[george ward]

Although it was not predicted dc did give up some good rides due to the little known and less understood phenomenon known to some as the orographic pulsation coupled with the upper level rippling creating a deep localized pressure gradient to occur lasting only a few hours.

[Craig Goudie]

Right ;*) ;*)

But I did say it would cough up some planers ;*)

Glad you got some

-Craig

Although it was not predicted dc did give up some good rides due to the little known and less understood phenomenon known to some as the orographic pulsation coupled with the upper level rippling creating a deep localized pressure gradient to occur lasting only a few hours.

[JimSouthwick]

What George said:

http://web.mac.com/jsouthwick/iWeb/Site/WindCharts.html

[DimitriMilovich]

OK, can't resist this.

So George, these pulsations originate from...?

[Josh Shirley]

Well, I never knew this forum had a word of the day program:

"Orographic: of or relating to the mountains."

Thanks for the new word!