[wxqc] Jagged Analysis Graph

[Gary J. Ferdinand]

Hi All,

I've looked up in the archives and saw a few thread re spikes, but nothing
seemed quite like what I've been seeing now on a regular basis.  Here's a
representative day:
http://pond1.gladstonefamily.net:8080/qchart/AR975?date=20060208 . Most days
show barometric analysis (red) graphs of a similar "shape."

Can anyone clue me in as to what is going on here?   If I don't take the
data too literally, I conclude that my barometric readings are consistently
off.  But, with the red graph lines' being so flakey, I'm hesitant to make
any conclusions at all.

Thanks in advance,

Gary Ferdinand W2CS
North Chatham, NY