Quick report
- Red Flags
- Recent Avalanches, Rapid Warming
Forecaster Comments- Thanks for this great write up. There are more photos of this avalanche cycle HERE. https://utahavalanchecenter.org/avalanche/78200
Photo Cascade Ridge from Mike B
Snowpack
- Instability Comment
- <p>I stepped out at about 7:15pm and scanned both Timp and Cascade. Problem #1 Timpanogos, #2 Cascade.,</p> <p>Mount Timpanogos went through a widespread natural later Sunday afternoon. What I could see favored Southwest</p> <p>aspects and southerly ridge faces. A lot of it looked like point releases fanning out fairly shallow on afternoon</p> <p>heated surfaces. I did see one large slab pulled out North of Big Baldy on the south face of a ridge. Dry Canyon upper basin had multiple long sweeps triggering as high as 10,700'. Further South, a high number at wide altitude range. Some areas had run once or twice in the last few days. Mostly lower ones. A high percentage of coverage. But, I didn't see anything overly deep or large debris piles. Saw one muddy upside down vee below a cliff face further up the canyon early this afternoon.</p> <p>Cascade: I clicked "New Snow" cause there is six feet or more new from the last couple of weeks. Most of </p> <p>the West-flank of Cascade hasn't moved or cleared since this Winter's snow pack started last year. At 7:20 there were additional very long crown fractures up high. Multiple mid-altitude areas that were probably a mix of slab</p> <p>and loose snow pack. Plus, additional point releases fanned out & roller fests.</p> <p> </p> <p>The Crown Fractures I saw were around 10,500' altitude. With at least one around 9500'. Long, but consistent with the high bowl terrain. I expect to see the Crown Fracture height to be in the 8' to 10' plus range. The higher fractures didn't go clear to the ground and might have broke on a deep weak layer. The lower one swept a high percentage to the ground & bedrock. I suspect the debris piles will be impressive... Even in July.</p> <p> </p> <p>I took my hike earlier at the mouth of Provo Canyon. Only climbing up to 6000'. It was a mix of some supportive. With a lot of patient punching into damp facets. Most of the gullies dropping from Cascade's West side had some</p> <p>debris from older slides. One looked as recent as Saturday. Further South I could see a lot of sign from Saturday.</p> <p>Getting up to where I could see better wasn't happening. Whatever, no problem. Nice day. Of course, I was home, showered, snacked and asleep at the mouse when the really cool action happened... (D'oh!)</p> <p> </p> <p>At about 12:30 pm, I heard a very loud crack followed by a few seconds of deep rumble. Then nothing. I couldn't spot an explanation for either rock or snow. "Hmmm!</p> <p> </p>