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 Sort descending CPI-Adjusted Damage Unadjusted Damage Summary Links
Wyoming Laramie Cheyenne July 11, 2011 Hail $128,502,418 $120,000,000
Wyoming Park, Big Horn, Washakie May 07, 1988 Flood $1,527,218 $750,000
Utah Utah, Davis, Salt Lake, Weber, Cache April 04, 1983 High Wind $24,195,600 $10,000,000
Wyoming Park, Big Horn July 05, 1975 Flood, Hail, High Wind
Colorado December 29, 1951 Winter Storm
Utah Weber July 17, 1930 Landslide $5,047,988 $350,000
Colorado Weld January 01, 1973 Dam Failure, Flood
Colorado Costilla, Huerfano Fort Garland, La Veta June 27, 2018 Wildfire $35,000,000
Wyoming Sheridan Sheridan January 01, 1955 Winter Storm
Wyoming Teton Afton May 18, 2011 Landslide
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