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2014-15 Colorado Weather Discussion - Page 120  

post #3571 of 4070
Thread Starter 
I know. Those guardrails on I-70 east from Eisenhower have gotten beat to hell this year with a number of full punch-throughs. I'm sure the (perceived) increase is from texting. Maybe people won't text in the toll lane biggrin.gif.
post #3572 of 4070
Quote:
Originally Posted by NayBreak View Post

I know. Those guardrails on I-70 east from Eisenhower have gotten beat to hell this year with a number of full punch-throughs. I'm sure the (perceived) increase is from texting. Maybe people won't text in the toll lane biggrin.gif.

They are in the process of fixing/replacing them right now, I noticed yesterday.

post #3573 of 4070
Quote:
Originally Posted by segbrown View Post

Quote:
Originally Posted by NayBreak View Post

I will be getting an account for sure. E-470 is 10% discounted I think when you use the transponder rather than bill based on license plate picture, and you just keep it funded off a credit card.
You save even more money if you just never wash your car in winter. I don't drive E470 that often, but at least three times I've avoided the license plate toll because my plates have been totally encrusted in road grime. biggrin.gif  

Lol. This ^^^ is the reason I don't wash my car often in the winter. I got so busted on 2 seperate occasions from the mobile speed cam on US6 EB after federal but never got a ticket.

(For the record, you don't actually have to pay those automated speeding tickets unless you get issued a summons. If you don't live in Denver, you probably won't)
post #3574 of 4070
Quote:
Originally Posted by NayBreak View Post

A-Basin has been specifically studied. Those interested can read more here:

http://arc.lib.montana.edu/snow-science/objects/ISSW_O-031.pdf

An excerpt:

"steep terrain closures are based, in part, on predicting the concentration and timing of diurnal wetting fronts which rapidly infiltrate the ski-compacted slab and underlying depth hoar."


I appreciate that reference.  2010 was the ISSW at Squaw Valley which I attended.  I remember the A-Basin wet snow instability being mentioned, but I do not remember there being a specific presentation about it.  There was an exhibit hall where additional studies were on display, and I probably missed it there.
 

Quote:

I am pretty sure that Pali's closing and reopening was based purely on wet slide safety (assessed from various technical sensors) and not new snow.  The accumulated snow depth does matter, of course, because snow is an insulator.  But it's more a temperature thing.

 

We did get quite a bit of new snow around Mothers Day last year, but it wasn't correlated with Pali status.

 

I really admire the way A-Basin balances snow safety with terrain availability, and does more than look out the window and guess.

The message I get is that it's nearly all a temperature thing.  The weak layers are nearly always down there somewhere in a continental snowpack.   The 2014 snowpack was much deeper than average and there was still a temporary early May closure of Pali during a warm spell.

 

And amen to the last paragraph.  The "cliff" in tball's Grizzly Peak snowpack graph is usually well underway by this time, but A-Basin is making its call based upon actual weather/conditions and not the calendar.  So as noted before, this puts A-Basin more in Mammoth's camp in terms of responsiveness to its spring customers.

 

I'll have to look at those Grizzly Peak links tball posted. 

post #3575 of 4070
Thread Starter 
Quote:
Originally Posted by segbrown View Post

You save even more money if you just never wash your car in winter. I don't drive E470 that often, but at least three times I've avoided the license plate toll because my plates have been totally encrusted in road grime. biggrin.gif  

The MagChloride Discount - that would be good payback for having an opaque windshield in the new toll lane. This could be the revival of curb feelers, except they would be rail feelers.

Downieville to Idaho Springs: "I can't see, you can't bill me, and I'll just feel my way between that 18 wheeler and the new guard rail." That may be a solid plan biggrin.gif
post #3576 of 4070

There's a section on "uphill access" at A-Basin in the bottom half of this page...

 

  http://arapahoebasin.com/ABasin/snow-conditions/terrain.aspx

 

For those who've skinned if you have a season pass good at A-Basin do you still need to get a "complimentary uphill access pass"?

 

If so do you have to do that daily, or is it a one time per season thing?

 

Great they allow the access, and provide the info. Just a little unclear (to me) on those points.

post #3577 of 4070
Quote:
Originally Posted by jc-ski View Post
 

There's a section on "uphill access" at A-Basin in the bottom half of this page...

 

  http://arapahoebasin.com/ABasin/snow-conditions/terrain.aspx

 

For those who've skinned if you have a season pass good at A-Basin do you still need to get a "complimentary uphill access pass"?

 

If so do you have to do that daily, or is it a one time per season thing?

 

Great they allow the access, and provide the info. Just a little unclear (to me) on those points.

 

Yes. You still need to get a complimentary uphill pass, which is different from a season or epic pass. It's a liability thing.

 

Just one time per season.

post #3578 of 4070
Quote:
Originally Posted by skiNEwhere View Post
 

 

Yes. You still need to get a complimentary uphill pass, which is different from a season or epic pass. It's a liability thing.

 

Just one time per season.

 

Yeah. The whole uphill pass thing is so they can document that they parked you in front of somebody that told you the rules, and you agreed to them- so if you are ever caught breaking said rules, you can't plead ignorance.

post #3579 of 4070

Loveland wasting no time on lift 2, haul rope is being removed.

 

post #3580 of 4070

Skiing tomorrow, most likely. 

Quote:
Originally Posted by anachronism View Post
 

 

Yeah. The whole uphill pass thing is so they can document that they parked you in front of somebody that told you the rules, and you agreed to them- so if you are ever caught breaking said rules, you can't plead ignorance.

Note that depending on hill usage, the uphill access may be closed. Like last Friday(?) morning when they had SG training on Power Line and below. I don't know if or how early they announce these isolated closings. If you are going out of your way to hike, you may want to call first for access info.

post #3581 of 4070

FYI, uphill access at Loveland ends on Monday.

 

http://skiloveland.com/themountain/uphillaccess.aspx

post #3582 of 4070
Thread Starter 
post #3583 of 4070

Al posted several nice photos from hiking this month.

 

http://arapahoebasin.blogspot.com/2015/05/wsbc.html

post #3584 of 4070

With the holiday and more snow on the way, who thinks A-bay will crowd out this weekend?

 

I got my gigawatts mounted up today- I will be skiing them for a few laps this weekend, mainly just so I don't have to stare at them all Summer.

 

Should we have a standing 10:00AM meetup at Black Mountain lodge?

post #3585 of 4070
I suspect it will be more crowded than you think it will but nothing like Mothers day. I'll try to make BML on Saturday at 10 but if not I'm in tan flylow pants with a black descente jacket and green helmet and I'll likely have a skinny ripping 10 year old girl dragging me down the hill. I know what you look like. David is my name and Alexandra is my leader.


Especially Saturday as it's festival of the brewpubs so lots of people.who won't ski much will.be there looking to drink.
post #3586 of 4070

It's looking pretty good for Pali to stay open through the weekend.  Streamflows are super low:

 

 

http://waterdata.usgs.gov/co/nwis/uv?cb_00060=on&cb_00065=on&format=gif_default&site_no=09047500&period=30

 

And, the NWS forecast pinpoint A-basin has overnight lows below freezing, cool and cloudy days, and a bit of snow each day:

 

http://forecast.weather.gov/MapClick.php?lon=-105.86854&lat=39.64011#.VV893GRVhBc

 

@NayBreak might be right about Tuesday being the last day for Pali.  Unfortunately, my wife scheduled something Tuesday, so Wed is the first day I can get up.  That's a long time from now given Pali's expected half life at the end of May.   Hopefully they will keep the lift running for a couple days even if they have to close the Pali trail.  If not, the bumps on Ramrod, Exibitchion and Standard should still be fun next week.

 

I'd love to make some turns with you all this weekend, but we have a long planned first biking weekend at Copper on the agenda for Memorial Day.  :rolleyes  Looks like fun, eh:

 

http://www.coppercolorado.com/winter/the_mountain/mountain_webcams/CenterVillage/index.html

 

I've talked to a bunch of folks who are camping this weekend, so it could be worse.  :eek  Colorado skiers win this Memorial Day!

post #3587 of 4070
Quote:
Originally Posted by tball View Post

 

I've talked to a bunch of folks who are camping this weekend, so it could be worse.  :eek  Colorado skiers win this Memorial Day!

We had planned to go camping this weekend but with the cold and rain ..no thank you.  I'm bringing my youngest up to Summit with me to ski and we'll bring our mtn bikes and maybe hit up the trails in Eagle if it's warm and sunny for part of the weekend (not looking for that).  My wife is staying in Denver with my oldest to be couch potatoes:nono:

post #3588 of 4070

Personally, I think there will be more non-skiers than skiers up there.

 

 

LEAD Technologies Inc. V1.01

 

 

Pink helmet, black pants, jacket dependent on weather. - Karen

Most likely this:


Edited by rx2ski - 5/22/15 at 9:10am
post #3589 of 4070
Quote:
Originally Posted by UGASkiDawg View Post
 

We had planned to go camping this weekend but with the cold and rain ..no thank you.  I'm bringing my youngest up to Summit with me to ski and we'll bring our mtn bikes and maybe hit up the trails in Eagle if it's warm and sunny for part of the weekend (not looking for that).  My wife is staying in Denver with my oldest to be couch potatoes:nono:

 

Summit County has all the bike paths cleared:

http://www.summitdaily.com/news/16403968-113/last-section-of-summit-county-recpath-plowed-and

 

Kinda cool the Colorado Avalanche Information Center has to give the OK to open a bike path.  :D

 

Quote:
 

The last remaining section of the paved Recreational Pathway System is now plowed and swept in time for Memorial Day weekend. The Summit County Open Space and Trails Department received the all-clear on avalanche danger in Tenmile Canyon from the Colorado Avalanche Information Center last week, opening the trail to recreational use on May 13.

“The Road and Bridge Department was able to get the entire Recpath system plowed and swept earlier than usual this year, which we are very excited about,” Summit County commissioner Thomas Davidson said in a written statement. “Even though the Tenmile path is now open, though, everyone should use caution, as conditions are still wet, snowy and icy in many spots throughout the canyon between Frisco and Copper Mountain. The weather can be really erratic this time of year.”

post #3590 of 4070
Quote:
Originally Posted by tball View Post
 

 

Summit County has all the bike paths cleared:

http://www.summitdaily.com/news/16403968-113/last-section-of-summit-county-recpath-plowed-and

 

Kinda cool the Colorado Avalanche Information Center has to give the OK to open a bike path.  :D

 

 

 

Too cold for riding in Summit...I'm a wimp and generally don't ride in below 55 degree temps

post #3591 of 4070
Quote:
Originally Posted by UGASkiDawg View Post
 

Too cold for riding in Summit...I'm a wimp and generally don't ride in below 55 degree temps

 

Hmmm.... this is looking pretty nice:

 

post #3592 of 4070
Thread Starter 
First day of summer vacation.



post #3593 of 4070
That's my kind of summer vacation.
post #3594 of 4070
post #3595 of 4070
post #3596 of 4070
Thread Starter 
Caught first corral with my two oldest boys yesterday. They were pretty tired after a week of high school finals. Skied until 3:30 when they were toast. I was only crisping up a bit wink.gif.

This was like a day in late March. Some really nice turns under the East Wall traverse when it opened around 10:00 and the flat light started to moderate. The Zuma east traverse was fully open again and by noon or so everything was soft with occasional sun breaks. Had a number of really nice runs off the traverse including the trees. Zuma Cornice did not open. Surprisingly uncrowded given some fresh plus the existing conditions. Have fun today up there.

A few more pics.





post #3597 of 4070
Thread Starter 
Those who follow my weather musings (all of you? wink.gif ) would know that I have speculated that the upper mountain was getting substantially more snow than the reported base depths. I remembered a shot of this sign on Al's blog from last year around May 10th when reported base depth was about 80". I took the second shot for comparison yesterday, base depth 58".





Not shabby since last year was about 410" at this point smile.gif.

On their Facebook page, 307" to date this season (47" so far in May).
Edited by NayBreak - 5/23/15 at 1:26pm
post #3598 of 4070
We got the The Basin during a lightning hold late this morning. We hung around for the restart and it was the right choice. Pali was wonderful.

post #3599 of 4070
We got to The Basin during a lightning hold late this morning. We hung around for the restart and it was the right choice. Pali was wonderful.



Oops! Damned mobile version.
Edited by H2OnSnow - 5/23/15 at 3:45pm
post #3600 of 4070
Quote:
Originally Posted by tball View Post
 

 

Yeah, but you have to get it from NCDC AFIK.  Here's the link to the Grizzly Peak site temperature history:

http://www.ncdc.noaa.gov/cdo-web/datasets/GHCND/stations/GHCND:USS0005K09S/detail

 

I got up to 66 degrees the day of the Pali avalanche in 2005:

 

 

The data from the previous day was bad.  Extrapolating from the Copper Mountain site the high was around 60 the day before and the prior night's low above freezing.

 

Here's the Copper site that has data for the missing day: 

http://www.ncdc.noaa.gov/cdo-web/datasets/GHCND/stations/GHCND:USS0006K24S/detail

The Grizzly Peak data sets go back a long time.  32 years for May.   A-Basin's stated criteria for monitoring Pali for possible shutdown are 1) high temperatures of at least 10C (50F) and 2) low temperatures above freezing.  So I examined those daily records.  There are years Pali would clearly have been open Mother's Day weekend and others where it very likely would have been closed.  Obviously there are gray areas where it's hard to tell when temperatures are borderline for a couple of days, but if the 2 criteria above are met for a sustained period of time or if the high temperature is far above 50F as in 2005, those are the scenarios where Pali would very likely be closed.  A-Basin management has to be cautious since the 2005 accident occurred on only the second day that overnight temps were above freezing.

 

The Pali closing temperature conditions were met for Mother's Day weekend in 11 out of the 32 seasons.  We are on a lucky streak at the moment, with only 2012 failing since 2008.  The snowpack-falling-off-a-cliff graphs reflect that the Pali closure probability is rising fast during mid-May.  When Mother's Day is late (May 10-12), Pali is likely to be closed nearly half the time.  When Mother's Day is early (May 8-11), it's likely to be closed only a quarter of the time.   First weekend of May Pali is about 85% likely to be open, third weekend of May it's about 70% likely to be closed.

 

In terms of ski conditions, low temperatures in May at A-Basin are often though not always accompanied by new snow.  Rarely is precipitation recorded on the warmer days.


Edited by Tony Crocker - 5/23/15 at 5:52pm
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