tag:blogger.com,1999:blog-6168620747792092240.post3493585533382893396..comments2024-03-27T15:09:59.039-06:00Comments on Wasatch Weather Weenies: Another Look at the Mountain EffectsJim Shttp://www.blogger.com/profile/15799757451626876963noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-6168620747792092240.post-15526538371726449302013-01-29T19:24:24.970-07:002013-01-29T19:24:24.970-07:00Ah yes, that makes sense. Thanks for the clarific...Ah yes, that makes sense. Thanks for the clarification. BTW, we have some really great DOW data from winter storms last year. You should have a looksee sometime.Jim Shttps://www.blogger.com/profile/15799757451626876963noreply@blogger.comtag:blogger.com,1999:blog-6168620747792092240.post-57223563421296290592013-01-29T19:03:59.682-07:002013-01-29T19:03:59.682-07:00Definitely. I agree with you on all points. My p...Definitely. I agree with you on all points. My point is that I doubt it is snowing much harder over Broads Fork Twin Peaks or Dromedary than at Snowbird or Alta. I think a fair bit of that snow reaches Alta and Snowbird but beneath the radar beam when there are decent NW winds aloft. Beyond the PC ridge line, things are more complicated and I agree with your lee subsidence analysis in this case.Adam Varblehttps://www.blogger.com/profile/14991968453822376063noreply@blogger.comtag:blogger.com,1999:blog-6168620747792092240.post-13959384271354179572013-01-29T16:52:32.800-07:002013-01-29T16:52:32.800-07:00You are right about the transport and possible gro...You are right about the transport and possible growth, and the need for caution in interpreting the radar images. During the period examined, however, automated snow sensors along the LCC highway did receive more snow than Collins, and far more than observed in the lee. Thus, one needs to be cautious in interpreting the radar, but the general picture of a decrease in snowfall from west to east as one moves across upper BCC, the PC ridgeline, and into the Wasatch Back seems reasonable. Jim Shttps://www.blogger.com/profile/15799757451626876963noreply@blogger.comtag:blogger.com,1999:blog-6168620747792092240.post-18076559333028422602013-01-29T16:26:56.322-07:002013-01-29T16:26:56.322-07:00While I believe less snow at the top than the bott...While I believe less snow at the top than the bottom, a few inches seems really low. It is pretty windy on the ridges, so I would expect a lot of variability up high. I would also point out in the radar images that the radar beam is often above mountain top in the Central Wasatch. With snow falling at ~1 m/s (~15 minutes to fall 3000 feet), a substantial amount of snow is carried downstream of the radar echo before hitting the ground. In this scenario, I would imagine that you would be getting dendritic growth beneath the radar beam as well. Those would be good reasons for why you don't see a decent echo over Alta or Snowbird in the image even though Collins was recording an inch an hour at that time.Adam Varblehttps://www.blogger.com/profile/14991968453822376063noreply@blogger.com