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How to Monitor the Sierra Snow Pack ?
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Feb 6, 2013 at 9:31 am #1298911
What are the best ways / places to monitor the Sierra snow pack to aid in trip planning for next summer ?
Feb 6, 2013 at 9:53 am #1951363Hi Art,
Here's a good resource for the entire state.
http://cdec4gov.water.ca.gov/cgi-progs/snowsurvey_sno/PAGE6
I'd also watch forums, such as High Sierra Topix, for recent trip reports.
Cheers,
Rick
Feb 6, 2013 at 9:56 am #1951365This is pointed at Mt Hood but you can scroll around anywhere in the U.S.
It'll be off a little but it's close.
And there are maybe 1 mile squares so it'll sometimes be off on a narrow ridge
Feb 6, 2013 at 10:03 am #1951371The NRCS monitors snowpack using snotel sites across the country. If the snotel site shows snow remaining, you're likely to run into it; they're pretty accurate. Here's the link for all the California sites:
http://www.wcc.nrcs.usda.gov/snotel/California/california.html
Feb 6, 2013 at 11:47 am #1951410The Mammoth Mountain Snowfall history can also be useful, especially for comparing different years (they have as much snow now as they did at the end of April last year)
Feb 6, 2013 at 12:06 pm #1951422Of course the snowpack varies from place to place and from day to day. If you are looking for a quick answer, I would say that the snowpack is only about two-thirds of an average year. If this continues for another two months, then the summer trails will be usable a couple of weeks earlier than normal. The desert trails may become unbearably hot and dry a couple of weeks earlier than normal.
–B.G.–
Feb 9, 2013 at 5:16 pm #1952698Here's the page I have bookmarked:
http://cdec.water.ca.gov/snow/current/snow/
in the top box on the right titled "SNOW SENSOR INFORMATION" you have access to remote snow sensors giving you real-time snowpack info for a variety of locations in the Sierra. Be aware that these primarily read in inches of water content, not snow depth. But in the late spring when it matters, snow depth is usually fairly close to double the water content number. It takes some time to figure out which sensors are closest to where you are planning to go, but once you have that dialed it is a great resource. I have used this info for years in planning my spring backcountry ski trips.
If you tell me where you are planning to go I can tell you which sensors are closest to your route.
Feb 10, 2013 at 6:42 am #1952820Paul I'd like to monitor all the passes of the JMT route.
thanks
Feb 10, 2013 at 9:19 am #1952876postholer.com has 'snow conditions' and 'snow depth' links for the PCT, which mostly overlaps the JMT in the 200 mile stretch.
Feb 12, 2013 at 8:17 pm #1953777Art – These are the sensors closest to the JMT (from N-S)
Agnew Pass (AGP) near 1000 Island Lake
Volcanic Knob (VLC) – Bear Ridge
Bishop Pass (BSH)
Crabtree Meadow (CBT)There are also a number of manual entry stations on or near the JMT. These get measured at the end of each month (roughly). Most of the remote sensors are also measured manually once a month. So if you check the page I gave you about the first of the month or so, look at "Snow Course Information" and "Monthly Snow Course Meassurements' – "latest" and you can see the most detailed info.
Manual only stations:
Devil's Postpile (DPO)
Mammoth Pass (MAM)
Rose Marie (RMR) – Rose Marie meadow, near Marie Lake
Heart Lake (HRT)
Colby Meadow (CBM)
Bench Lake (BNH)
Charlotte Lake (CRL)
Junction Meadow (JNM)
Vidette Meadow (VDM)
Upper Tyndall Creek (UTY)
Bighorn Plateau (BGH)Feb 13, 2013 at 6:57 am #1953871thanks everyone, these links should be helpful.
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