Light snowfall in the winter of 200001 led to a dry summer in
the Pacific Northwest. The drought led to a conflict between farmers and
fishing communities in the Klamath
River Basin over water rights, and a series of forest fires
in Washington, Oregon, and Northern California.
The pair of images above, both acquired by the Enhanced Thematic Mapper Plus (ETM+) aboard
the Landsat 7 satellite, show the snowpack on Mt. Shasta in June 2000 and 2001. On June 14, 2000, the
snow extends to the lower slopes of the 4,317-meter (14,162-foot) volcano. At nearly the same time
this year (June 17, 2001) the snow had retreated well above the tree-line. The drought in the region
was categorized as moderate to severe by the National Oceanographic and Atmospheric Administration
(NOAA), and the United States Geological Survey (USGS) reported that streamflow during June was only
about 25 percent of the average. Above and to the left of Mt. Shasta is Lake Shastina, a reservoir which
is noticeably lower in the 2001 image than the 2000 image.