8. Western Snow

A significant winter storm brought heavy snowfall to areas of Montana, Wyoming and Idaho October 10-12. The snowy conditions brought record snowfall and gusty winds knocked down trees and power lines and reduced visibility. Several Wyoming counties reported as much as 33 inches of snow. In Montana, the city of Red Lodge recorded its highest snowfall total during a 24-hour period when 42 inches of snow fell.

Global Warming Link: The snowstorm in the northwest U.S. in October was exceptional for so early in the season. A strong, warm ridge of high pressure aloft set the stage for the pattern that produced the storm and is consistent with many other such scenarios in recent years that are directly related to the larger-scale warming.

Expert: KevinStu Ostro, sostro@weather.com, 404-210-7105

Consensus Science: "A widespread increase in annual precipitation is projected ... over most of the North American continent." (p.91)vii

_____________________________________

viiThe White House report, "Scientific Assessment of the Effects of Global Change on the United States" issued in May 2008, is available online at http://www.climatescience.gov/Library/scientific-assessment/.

Back to Extreme Weather 2008 Home

1. Hurricane Ike
2. Tornadoes
3. Hurricane Gustav
4. Midwest Flooding (Part One, Spring)
5. Midwest Flooding (Part Two, Summer)
6. Southeast Drought
7. California Wildfires
8. Western Snow
9. Colorado Heat Wave
10. Arctic Sea Ice Minimum

Download the PDF
Download the Press Release