Feb 12, 2007
Snowpack in the central Cascades, which ultimately keeps the Willamette River and its tributaries flowing, was at 87 percent of average Friday.
At this time last year, the snowpack was at 130 percent of average, said Sheila Strachan, a hydrologist with the National Resources Conservation Service in Portland. The service is responsible for tracking snowpack throughout the Cascades.
Strachan said the snowpack was at 112 percent of average at the end of 2006, but then January saw only about 63 percent of the usual amount of precipitation.
“We’ve seen well-above-average temperatures in mountains the last couple weeks, and that’s contributing to unseasonal snowmelt,” she added.
Record cold temperatures have caused some UNUSUAL WEATHER CONDITIONS, the likes of which haven’t been seen since December 1990 – the last date of measurable snow fall at Sky Harbor Airport.