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| | |-+  Friday 20 March - Mount Hood via South/Old Chute
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Author Topic: Friday 20 March - Mount Hood via South/Old Chute  (Read 2134 times)
Ted
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Friday 20 March - Mount Hood via South/Old Chute
« on: 03/22/15, 01:53 PM »

Three of us skinned up Palmer Snowfield on Friday morning.  We ended up ditching our skis below Crater Rock after sunrise to switch to crampons for firm snow conditions.  Hogsback ridge was nice and soft for the traverse north.  We opted to traverse west well below the bergschrund, below the seracs and up Old Chute.  Old chute was a bit dicey - two ice axes or an axe and whippet recommended, even better yet two technical tools.  We remained roped up for this entire section.

The wind built quickly upon summit and down climb.  Gusts were enough to blow you down - it made for an alert, careful downclimb below the old chute with ice raining down on us.  It felt good to gain the relative shelter and safety of Hogsback on the descent.

NWAC/Timberline telemetry for friday afternoon shows max wind speeds of 53 mph at top of Magic Mile at 1400…we were nearly four thousand feet above that point at that time, so who knows what the gusts were that we were feeling.  All I can say is that it's the highest wind speeds I ever want to feel on a mountain, and I was glad to have four thick layers on top plus a 700-fill down jacket!

We only encountered two others - both solo.  The ski descent was crummy, icy above the top of palmer lift but absolutely fantastic to rip the groomers beginning at Palmer.  Pictured are Gabe and Greg, both from PDX.


* fumalrole.JPG (21.04 KB, 320x240 - viewed 1141 times.)

* oldchute.JPG (20.67 KB, 320x240 - viewed 1134 times.)

* gabe.JPG (23.38 KB, 320x240 - viewed 1145 times.)
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Amar Andalkar
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Re: Friday 20 March - Mount Hood via South/Old Chute
« Reply #1 on: 03/22/15, 03:42 PM »

Thanks for the report. Note that the NWAC telemetry is on PST year-round, so the max wind speed atop Magic Mile was only 28 mph during the hour prior to 1400 PDT (1300 PST on the telemetry). But more relevant to figuring out the winds atop Hood would be the data from Camp Muir at 10100 ft on Rainier, which shows winds rapidly increasing towards 100 mph during that hour, and gusting over 100 mph for the next several hours:


Northwest Avalanche Center                          Northwest Avalanche Center
Top of The Magic Mile chair, Timberline, Oregon     Camp Muir, Mt Rainier National Park, Washington

                                                    Wind gages unheated and may rime

 MM/DD  Hour  Temp    RH  Wind  Wind  Wind  Wind      MM/DD   Hour   Temp     RH   Wind   Wind   Wind   Wind  Solar
         PST     F     %   Min   Avg   Max   Dir               PST      F      %    Min    Avg    Max    Dir   W/m2
             7000' 7000' 7000' 7000' 7000' 7000'                   10110' 10110' 10110' 10110' 10110' 10110' 10110'
------------------------------------------------    ---------------------------------------------------------------
  3 20     0    37    58     3    12    23   239       3 20      0     26    100     41     51     58    253      0
  3 20   100    36    60     6    12    20   257       3 20    100     27    100     48     54     62    247      0
  3 20   200    36    62     8    14    24   248       3 20    200     25    100     43     50     58    247      0
  3 20   300    35    70     7    14    22   255       3 20    300     22     45     36     53     61    247      0
  3 20   400    35    74    10    15    26   260       3 20    400     24     54     33     51     64    279      0
  3 20   500    35    69     5    17    28   252       3 20    500     23     53     42     61     69    277      0
  3 20   600    34    66     6    16    25   256       3 20    600     24     45     56     65     76    273      0
  3 20   700    35    60     0    20    34   234       3 20    700     23     32     50     62     73    273      0
  3 20   800    37    60     0    13    27   246       3 20    800     24     42     45     62     79    265      0
  3 20   900    37    60     0    15    29   237       3 20    900     25     49     38     65     83    273      0
  3 20  1000    38    46     3    14    27   253       3 20   1000     27     83     46     59     71    269      0
  3 20  1100    40    49     2    18    32   243       3 20   1100     24     99     48     59     71    275      0
  3 20  1200    40    52     2    11    22   242       3 20   1200     25    100     52     65     78    268      0
  3 20  1300    39    56     0    15    28   240       3 20   1300     22     99     69     79     94    266      0
  3 20  1400    40    54     0    16    53   239       3 20   1400     20     95     72     87    101    265      0
  3 20  1500    40    57     0    23    52   228       3 20   1500     20     86     82     93    106    268      0
  3 20  1600    39    67     0    23    43   248       3 20   1600     19     93     77     91    107    268      0
  3 20  1700    38    67     4    17    31   242       3 20   1700     18     98     86     97    111    265      0
  3 20  1800    35    69     3    17    33   226       3 20   1800     22    100     73     85     95    270      0
  3 20  1900    33    86     3    18    34   214       3 20   1900     22    100     68     82    102    212      0
  3 20  2000    31    99     0    17    41   220       3 20   2000     22    100     61     69     79    203      0
  3 20  2100    31   100     0    20    48   210       3 20   2100     22    100     45     57     70    204      0
  3 20  2200    31   100     0    13    28   197       3 20   2200     19     98     35     47     55    204      0
  3 20  2300    31   100     0    15    28   193       3 20   2300     20     99     30     39     48    203      0
   

Good work getting up high under those conditions! The narrow knife-edge summit ridge from the top of Old Chute to the true summit is truly terrifying in high winds, even if only 40-50mph, not to mention double that.

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water
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Re: Friday 20 March - Mount Hood via South/Old Chute
« Reply #2 on: 03/25/15, 12:34 PM »

nice TR. Curious to see how things are up there now with all the new snow. Finally a big dump!

FWIW the Muir Telemetry to top of Mt. Hood approximation sometimes is helpful and other times isn't really a good comparo at all.
For instance yesterday morning 7k on Hood had gusts to ~90mph and averaged ~65mph. At the same time Muir barely broke 20mph and averaged 15mph winds.

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Ted
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Re: Friday 20 March - Mount Hood via South/Old Chute
« Reply #3 on: 03/25/15, 12:42 PM »

Yeah, the snow was rolling in right after we skied down last Friday.  I bet the landscape looks a bit different now.
« Last Edit: 03/25/15, 01:04 PM by Ted » Logged
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