Originally posted by iamcamouflage
reply to post by beefytee

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In the event of an eruption, would jet streams be a good indicator of where the plume of smoke and ash will travel? Anyone know what the jet steam looks like over Yellowstone? Where will this cloud be carried? Directly west, towards Michigan and New England coast? North into canada? South towards the carolinas?

Originally posted by Not Authorized

Originally posted by TwiTcHomatic
reply to post by spinkyboo

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I do believe those are harmonic tremors as well, (magma is a-movin') and remember this type of event can last for days and weeks.

Sorry, I don't believe those are harmonic.

I too have watched the Webicorders for years, and to be blunt this is typical noise you'll see in wind locations, or exposed locations prior to and following a storm. After watching the Cascade webicorders for years (namely after the Mt Hood Swarm) I've learned my lesson in noise with webicorders. This type of 'movement' is quite normal in wind, or storms, or if the sensor is turned up a bit to high. I've seen it before many times and learned not to even bother with it if theres wind or storm conditions -- unless the webicorder shows that it's protected from the elements. To compound the noise problem, some recorders seem to kick up the sensitivity a notch for a few hours after a quake and then drop back down to normal.

The Upper Falls (YUF) webicorder gives a much clearer picture as to whats going on, and is closer to the epicenters of the swarm than the Mary Lake webicorder is. No one is looking at that one though, as it's not as sensational about proclaiming harmonic quakes because the YUF doesn't have lots of squiggly lines. The YUP one is showing tectonic quakes without the noise.

I've seen entire days of worse noise in the cascades during a storm. For minor examples, Crater Lake and Mt Hood should blow up too as the past week they had the same type of noise, and if you caught the big storm 2 weeks ago -- all of the cascades should be gone. Also more so you can even see the noise increasing prior to the quakes further west at the YPP webicorder, ie the wind picking up.

Not to take the wind out of everybody's sails, but you have to realize you're dealing with wind conditions of 23mph with 39mph gusts across one of the largest altitude freshwater lakes in America that is currently flat as a board by being frozen over. Plus a winter storm coming that will create a ton of noise on the recorders not protected to the elements. Speaking of which the LYWY seismograph is stationed in nothing more than a concrete pillar. Want proof? Here's the seismograph from utah edu itself:



Please tell me you don't think that the wind isn't effecting it?