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.

All CPI-Adjusted Damage costs are 2022 values, calculated from: https://www.usinflationcalculator.com/. CPI-Adjusted Damage costs are unavailable before the year 1913.

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 Unadjusted Summary Links
Colorado Mesa Collbran May 25, 2014 Landslide 3
Wyoming Big Horn, Campbell, Converse, Crook, Johnson, Natrona, Sheridan, Washakie, Weston, Niobrara October 03, 2013 Winter Storm 3
Colorado Adams, Arapahoe, Bent, Boulder, Douglas, Denver, El Paso, Gilpin, Jefferson, Larimer, Logan, Pueblo, Morgan, Weld Loveland, Lyons, Longmont, Jamestown, Boulder, Estes Park, Morrison, Evans, Colorado Springs September 12, 2013 Flood 10 $2,509,440,000.00 $2,000,000,000.00
Colorado Weld Evans September 09, 2013 Dam Failure, Flood
Colorado Douglas, Elbert, El Paso June 11, 2013 Wildfire 2 $367,633,000.00 $293,000,000.00
Colorado Archuleta June 05, 2013 Wildfire
Colorado Clear Creek April 20, 2013 Avalanche 5
Utah Salt Lake April 10, 2013 Landslide
Utah Washington September 11, 2012 Dam Failure, Flood $4,200,000.00
Wyoming Albany June 29, 2012 Wildfire
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