High-Impact Weather and Climate Events

High-impact events cause the majority of societal costs related to weather and climate. They provoke societal responses that can either enhance or detract from long-term adaptation to climate risk. In 2015, WWA began a new research focus on extremes that is designed to place high-impact events in the context of historical climate variability and projected climate change, assess how the risk of these events varies over time and space, and examine how high-impact events interact with place-based vulnerability.

The first activities in this new research theme have been to build a database of 160+ historical high-impact weather and climate events in the three-state region, and to generate a complementary set of regional event maps showing how risk varies seasonally across the region for different types of weather and climate events.

Note: The High-Impact Events Database is currently being updated with more features. Stay tuned.

Filter between two years
State County City Date Event Type Deaths CPI-Adjusted Damage Unadjusted Damage Summary Links
Utah Statewide December 25, 2003 Winter Storm, Avalanche 3 $1,963,566 $1,500,000
Wyoming Campbell, Crook Gillette June 21, 2003 Hail $22,254,782 $17,000,000
Colorado Fort Collins, Boulder March 17, 2003 Winter Storm $121,748,330 $93,000,000
Colorado Statewide October 01, 2002 Drought $1,606,742,940 $1,200,000,000
Utah Sanpete Manti September 08, 2002 Tornado $2,811,446 $2,100,000
Wyoming Laramie Cheyenne August 26, 2002 Hail $40,168,832 $30,000,000
Wyoming Johnson August 26, 2002 Flood $616,264 $460,000
Wyoming Converse June 18, 2002 Wildfire
Colorado La Plata June 09, 2002 Wildfire 1 $88,800,000
Colorado Teller, Jefferson June 08, 2002 Wildfire 1 $51,700,000 $38,612,000
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