While snow levels have decreased drastically in the West and are generally on decline elsewhere in the United States, ...
Some dismiss the snow drought as an anomaly, pointing to near-record snowfalls in the Sierra Nevada as recently as 2011. When viewed on graphs, the data is spikier than ever, but the trend lines point down.
Admin":1v9ujptk said:"The Paper of Record"
NY Times":bld0ora8 said:Troubling for ski areas now is the rising percentage of precipitation that falls as liquid, not solid, even in winter, said Randall Osterhuber, a researcher at the snow lab. In the late 1970s, about 82 percent of the annual precipitation at the lab, with a relatively high elevation of 6,900 feet, fell as snow. These days, it is about 67 percent.
Tony Crocker":2qm33koa said:It may be the paper of record, but it ran a similar article of drivel almost exactly 2 years ago.
viewtopic.php?f=10&t=9675&start=45#p66788
NY Times":2qm33koa said:Troubling for ski areas now is the rising percentage of precipitation that falls as liquid, not solid, even in winter, said Randall Osterhuber, a researcher at the snow lab. In the late 1970s, about 82 percent of the annual precipitation at the lab, with a relatively high elevation of 6,900 feet, fell as snow. These days, it is about 67 percent.
I've been getting that CSSL data from Randall for over 20 years. He has a precise rain/snow breakout since 1987. From 1987-88 to 2011-12, snow was 79% of November-April precipitation. Before that, there is only a total water to total snow ratio. That ratio was 13.3% from 1971-1987 and was 14.3% from 1988-2012. Crudely, that would imply that the snow percent of precipitation in the earlier period was ~85%.
For Sierra snowfall you can easily manipulate the data. If you use 1993 as a starting point and go to the present, it looks like Sierra snowfall is dropping precipitously. If you choose the time period 1987-2011 it looks like Sierra snowfall is rising even faster than it's falling in the 1993-2014 example. My data is fairly extensive back through the 1970's. Using the starting point of 1971, 1973 or 1976, the trend through 2014 is dead flat.admin":1xi7bfve said:What does that mean? The past 3 years? Last year? Last week? By using a vague word or phrase like that, you can take the data and use it to make whatever point you want it to.
The temperature increase between the 1970's and the 2000's should have moved the rain/snow line a little bit. I take it as part of my number crunching charge to investigate that. The Whistler base is the only place in my data where I see decreased snowfall as a result, and this during an era when Whistler alpine snowfall has been increasing some. The CSSL data is the other indicator I have of an impact on rain vs. snow, though the total snowfall there is flat in line with the rest of the Sierra. Snoqualmie Pass is the next place to watch. Its snowfall is flat since the 1970's though supposedly it was higher in the 1950's.admin":1xi7bfve said:The fact is that the article's assertion that snowfall is decreasing across the country is an outright lie.