When the NWS issues its formal weather warnings and watches, they can be found at this linkhttp://www.wunderground.com/US/CA/096.html
The link will be dead when there is no warnings or watches for the area:
I don't think we have any members on trial right now, which sounds like a good thing. Sounds survivable with adequate gear and skills, but certainly challenging. Sounds like there will be whiteout conditions at times. 18 inches of fresh snow can certainly lead to navigational issues and I suspect stream crossings will be a challenge as it melts.
========= Today's NWS watch =====================
Sierra Nevada from Yosemite to Kings Canyon
Winter Storm Watch
Statement as of 5:10 AM PDT on October 03, 2011
... Winter Storm Watch remains in effect from late Tuesday night
through Wednesday evening above 7000 feet...
A Winter Storm Watch above 7000 feet remains in effect from late
Tuesday night through Wednesday evening for the southern Sierra
Nevada from Yosemite to Kings Canyon.
* Snow accumulations: 6 to 12 inches above 7000 feet... and 12
to 18 inches in the high country.
* Elevation: above 7000 feet.
* Timing: snow will begin falling Tuesday night and continue
through Wednesday evening. The heaviest snow will fall
during the day Wednesday.
* Locations include: Huntington Lake... Tuolumne Meadows... Tioga
Pass... Florence Lake... Edison lake
* winds: west winds over the high country will gust to 50 mph.
* Impacts: west winds gusting to 50 mph over the high country
will cause blowing and drifting of snow and possible white
out conditions. Snow accumulations may cause closures of
A Winter Storm Watch means there is a potential for significant
snow and strong winds that may impact travel. Hikers... campers... and
all outdoor enthusiasts should prepare for dangerous winter storm
conditions. Continue to monitor the latest forecasts.