NOAA said winter storms are generally not predictable more than several days in advance, meaning powder hounds pay close attention to daily weather reports.
Rocky Mountain Climate
A map illustrating the precipitation forecast of the 2010-2011 Winter Weather Outlook from the National Oceanic and Atmospheric Administration (NOAA), with La Niña a crucial factor.
A map displaying NOAA’s temperature forecast from its 2010-2011 Winter Weather Outlook, with La Niña a key climate factor.
Researchers measured the changes in the Yellowstone meadow plant community from 1997 to 2007, including a period of extended drought, and found that shrubs (such as sagebrush) that grow in the drier meadows increased, while flowering plants decreased in number.
The latest research was based on snowpack reconstructions from 66 tree-ring chronologies, looking back 500 to more than 1,000 years. A network of sites from north to south in the Rocky Mountains was chosen to characterize the range of natural snowpack variability over the long term.